

| www.kniferiver.com | |||||
PO Box 5568 Bismarck, ND 58506-5568 Street Address: 1150 West Century Avenue Bismarck, ND 58506 (701) 530-1400 | |||||
| Sincerely, | ||
![]() | ||
| Brian R. Gray | ||
| President and Chief Executive Officer | ||
Notice of Annual Meeting of Stockholders to be Held May 20, 2026 | ||

Items of Business | 1. | Election of two Class III directors; | ||||||
2. | Advisory vote to approve the compensation paid to the company’s named executive officers; | |||||||
3. | Ratification of the appointment of Deloitte & Touche LLP as the company’s independent registered public accounting firm for 2026; and | |||||||
4. | Transaction of any other business that may properly come before the annual meeting or any adjournment(s) thereof. | |||||||
Record Date | The board of directors has set the close of business on March 27, 2026, as the record date for the determination of stockholders who will be entitled to notice of, and to vote at, the annual meeting and any adjournment(s) thereof. | |||||||
Annual Meeting Attendance | All stockholders, as of the record date of March 27, 2026, are cordially invited to attend the annual meeting. Whether or not you plan to attend the annual meeting online, please vote your shares as instructed in the Notice of Availability of Proxy Materials (Notice), over the Internet, or by telephone after your receipt of hard copies of the proxy materials, as promptly as possible. You may also request a paper Proxy Card, which will include a postage-paid envelope, to submit your vote by mail, as described in the Notice. You may also vote your shares online and submit your questions during the annual meeting. Instructions on how to vote while participating at the annual meeting live via the Internet are posted at www.virtualshareholdermeeting.com/KNF2026 and can be found in the Proxy Statement in the section entitled “Information About the Annual Meeting - How to Attend and Vote at the Annual Meeting.” Stockholders of record who attend the annual meeting online may withdraw their proxy and vote online at the annual meeting if they so desire. | |||||||
Proxy Materials | This Proxy Statement will first be sent to stockholders requesting written materials on or about April 6, 2026. The Notice will also be sent to certain stockholders on or about April 6, 2026. The Notice contains basic information about the annual meeting and instructions on how to view the company’s proxy materials and vote online. | |||||||
By order of the Board of Directors, | ||||||||||||||
![]() | Important Notice Regarding the Availability of Proxy Materials for the Stockholders Meeting to be held on May 20, 2026. The 2026 Notice of Annual Meeting and Proxy Statement and 2025 Annual Report to Stockholders are available at www.knfproxy.com | |||||||||||||
Karl A. Liepitz | ||||||||||||||
Vice President, Chief Legal Officer and Secretary | ||||||||||||||
Table of Contents | ||
Board Composition and Effectiveness | ||||||||||||||||||||
Board Skills and Characteristics | ||||||||||||||||||||
Oversight of Sustainability | ||||||||||||||||||||
Stock Hedging and Pledging Policy | ||||||||||||||||||||
| Discretionary Voting Authority | ||||||||||||||||||||
Compensation for Named Executive Officers | ||||||||||||||||||||
Stockholder Proposals, Director Nominations, and Other Items of Business for 2027 Annual Meeting | ||||||||||||||||||||

| Proxy Statement Summary | ||
Annual Meeting Information | |||||||||||
![]() | ![]() | ![]() | |||||||||
Date and Time | Virtual Location | Record Date | |||||||||
May 20, 2026 | www.virtualshareholdermeeting.com/KNF2026 | March 27, 2026 | |||||||||
10:00 a.m. CDT | |||||||||||
Summary Of Stockholder Voting Matters | |||||||||||||||||
| Voting Matters | Board Vote Recommendation | See Page | |||||||||||||||
Item 1. | Election of Two Class III Directors | FOR Each Nominee | |||||||||||||||
Item 2. | Advisory Vote to Approve the Compensation Paid to the Company’s Named Executive Officers | FOR | |||||||||||||||
Item 3. | Ratification of the Appointment of Deloitte & Touche LLP as the Company’s Independent Registered Public Accounting Firm for 2026 | FOR | |||||||||||||||
| Proxy Statement Summary | ||||||||
| Name | Age | Director Since | Primary Occupation | Board Committees | |||||||||||||
| Karen B. Fagg | 72 | 2023 | Former Vice President of DOWL LLC, dba DOWL HKM | • Chair of the Board • Nominating and Governance | |||||||||||||
| Brian R. Gray | 55 | 2023 | President and Chief Executive Officer of Knife River Corporation | ||||||||||||||
Who Can Vote | ||||||||||||||
If you held shares of Knife River common stock at the close of business on March 27, 2026, you are entitled to vote at the annual meeting. You are encouraged to vote in advance of the annual meeting using one of the following voting methods. To attend and participate in the annual meeting, you will need the 16-digit control number included in your Notice or your Proxy Card, or on the instructions that accompanied your proxy materials. If your shares are held in “street name,” you should contact your bank, broker, or other holder of record to obtain your 16-digit control number or otherwise vote through the bank, broker, or other holder of record. Only stockholders with a valid 16-digit control number will be able to attend the annual meeting, ask questions, and vote. The annual meeting webcast will begin promptly at 10:00 a.m. Central Daylight Saving Time. We encourage you to access the annual meeting prior to the start time. Online check-in will begin at 9:45 a.m. Central Daylight Saving Time, and you should allow ample time for the check-in procedures. | ||||||||||||||
Proxy Statement Summary | ||||||||
How To Vote | ||||||||||||||
Registered Stockholders | ||||||||||||||
| If your shares are held directly with our stock registrar, you can vote any one of four ways: | ||||||||||||||
![]() | By Internet: | Go to the website shown on the Notice or Proxy Card, if you received one, and follow the instructions. | ||||||||||||
![]() | By Telephone: | Call the telephone number shown on the Notice or Proxy Card, if you received one, and follow the instructions given by the voice prompts. Voting via the Internet or by telephone authorizes the named proxies to vote your shares in the same manner as if you marked, signed, dated, and returned the Proxy Card by mail. Your voting instructions may be transmitted up until 11:59 p.m. Eastern Time on May 19, 2026. | ||||||||||||
![]() | By Mail: | If you received a paper copy of the Proxy Statement, Annual Report, and Proxy Card, mark, sign, date, and return the Proxy Card in the postage-paid envelope provided. | ||||||||||||
![]() | During the Meeting: | Attend the annual meeting online and follow the instructions posted at www.virtualshareholdermeeting.com/KNF2026. Even if you plan to attend the annual meeting online, we recommend that you also vote by Internet, by telephone, or by mail so that your vote will be counted if you later decide not to attend. | ||||||||||||
Beneficial Stockholders | ||||||||||||||
If you held shares beneficially in the name of a bank, broker, or other holder of record (sometimes referred to as holding shares “in street name”) and do not have a control number, you will receive voting instructions from said bank, broker, or other holder of record. If you do not have a control number, you will be able to attend the annual meeting as a “guest” and listen to the proceedings, but you will not be able to vote, ask questions, or otherwise participate. Even if you plan to attend the annual meeting online, we recommend that you also vote by Internet, by telephone, or by mail so that your vote will be counted if you later decide not to attend. | ||||||||||||||
| Proxy Statement Summary | ||||||||
Knife River is a vertically integrated provider of construction materials and contracting services. We are the fourth-largest producer of sand and gravel in the country, and our product lines also include ready-mix concrete, asphalt, liquid asphalt and contracting services. We believe our growth strategy differentiates us as the employer, supplier, and acquirer of choice. Our strategy includes: | ![]() | ||||
■Diverse markets: Knife River operates in mid-size markets that are projected to grow faster than the US average. These markets present opportunities for both organic and inorganic growth. | |||||
■Vertical integration: Being an aggregates-based, end-to-end provider creates multiple opportunities to engage in projects, whether as a contractor, subcontractor, or materials provider. This brings the opportunity to generate more gross profit and capture higher margins. | |||||
■Continuous improvement: We are focused on our Competitive EDGE initiatives to control costs and optimize prices. “EDGE” is an acronym for EBITDA Margin Improvement, Discipline, Growth and Excellence. | |||||
■Life at Knife: During the peak of 2025, we employed nearly 6,900 people. We believe that putting people first will retain and attract team members who are committed to helping Knife River be excellent in everything we do. | |||||
Proxy Statement Summary | ||||||||

| Proxy Statement Summary | ||||||||
Knife River is committed to strong corporate governance aligned with stockholder interests. The board, through its nominating and governance committee, regularly monitors leading practices in governance and plans to continue to adopt measures that it determines are in the best interests of the company and its stockholders. The following highlights the company’s corporate governance practices and policies. See the sections entitled “Corporate Governance” and “Executive Compensation” for more information on the following: | ||||||||||||||
| ü | Structure in Place to Fully Declassify Board at the 2027 Annual Meeting | ü | All Directors are Independent Other Than Our CEO | |||||||||||
| ü | Majority Voting for Directors in Uncontested Elections | ü | Executive Sessions of Independent Directors at Every Regularly Scheduled Board Meeting | |||||||||||
| ü | No Shareholder Rights Plan | ü | Standing Committees Consist Entirely of Independent Directors | |||||||||||
| ü | Succession Planning and Implementation Process | ü | Stock Ownership Requirements for Directors and Executive Officers | |||||||||||
| ü | Separate Board Chair and CEO | ü | Anti-Hedging and Anti-Pledging Policies for Directors and Executive Officers | |||||||||||
| ü | Active Investor Outreach Program | ü | No Related Party Transactions by Our Directors or Executive Officers | |||||||||||
| ü | Annual Board and Committee Self-Evaluations | ü | Compensation Recovery/Clawback Policy | |||||||||||
| ü | Risk Oversight by Full Board and Committees | ü | Annual Advisory Approval on Executive Compensation | |||||||||||
| ü | Sustainability Oversight by Full Board and Committees | ü | Mandatory Retirement Policy for Directors | |||||||||||
| ü | Proxy Access for Stockholders | ü | Directors May Not Serve on More Than Three Public Boards Including the Company’s Board | |||||||||||
| ü | One Class of Stock | ü | Diverse Board in Terms of Skills, Characteristics and Tenure | |||||||||||
| ü | Comprehensive Board Refreshment Process | ü | Executive Officers May Not Serve on More Than One Other Public Company Board | |||||||||||
| ü | No Supermajority Voting Requirements in the Second Amended and Restated Certificate of Incorporation or Second Amended and Restated Bylaws | ü | Change in Control Severance Plan with Double Trigger Vesting | |||||||||||
Proxy Statement Summary | ||||||||
The company’s executive compensation program is based on providing market competitive compensation opportunities to attract top talent focused on achievement of short and long-term business results. Our compensation program is structured to align compensation with the company’s financial performance as a substantial portion of our executive compensation and is directly linked to performance-based incentive awards. Our compensation practices are designed to ensure alignment between the interests of stockholders and our executives, as well as effective compensation governance. | |||||
■For 2025, over 80% of our chief executive officer’s target compensation and approximately 70% of our other named executive officers’ target compensation was at risk. | |||||
■For 2025, 100% of our named executive officers’ annual cash incentive and 65% of their long-term incentive are performance-based and tied to performance against pre-established, specific, measurable goals. Time-vesting restricted stock units (RSUs) represent 35% of our named executive officers’ long-term incentive and require the executive to remain employed with the company through the vesting period. | |||||


| Proxy Statement Summary | ||||||||
People Key to building strong communities and building a strong national infrastructure is delivering on our commitments to our stakeholders - including our team members, communities, shareholders, customers, and suppliers. At Knife River, this includes providing developmental opportunities at all levels of the organization and supporting respect in the workplace and in the communities where we operate. This is an important part of our Life at Knife culture. | ![]() | ||||
Safety Knife River is committed to health and safety, and a culture that values, respects, and supports our team and community members. We believe safety is a choice and that all injuries are preventable. We promote safety and health through a variety of means, including safety-focused training and education programs for team members. We continually evolve our programs to incorporate best practices, innovations in personal protective equipment, and changes to safety and health laws. | ![]() | ||||
Quality We are committed to strong corporate governance, producing high-quality products and services, and being a good neighbor in our communities. We believe our long-term success can be achieved through fair, honest and sound decisions in dealing with customers, suppliers, and competitors. Knife River’s corporate Code of Conduct, outlined in our Leading With Integrity Guide, outlines the expected behaviors that guide our team members, coaches, officers, and the board to perform all matters with integrity. | ![]() | ||||
Environment Knife River aims to minimize environmental impacts and promote conservation while optimizing resource use to meet our customers’ needs. Our commitment to operating in an environmentally responsible manner is reviewed and encouraged through several measures. These include oversight by professional environmental staff with reporting and accountability to regional operations leaders, regular review of environmental and sustainability disclosures by the executive sustainability committee, thorough audits of operating activities, and thorough property reviews during due diligence on potential acquisitions. Knife River’s corporate Environmental Policy addresses environmental practices and supports our environmental management strategy. The policy directs that the company operate efficiently to meet the needs of the present without compromising the ability of future generations to meet their needs. | ![]() | ||||
Proxy Statement Summary | ||||||||
| People | Safety | ||||||||||||||||
•16% growth in team member count versus prior year •The Knife River Training Center hosted nearly 700 events and had over 15,000 visits •Launch of company-wide team member education assistance and family member scholarship programs •Third year of lower than industry average turnover rate •Launch of the “Life at Knife” team member-driven podcast | •Launch of the I Choose Safety program •Year-over-year reduction in both Total Recordable Incident Rate (TRIR) and Lost Time Incident Rate (LTIR) •2,800+ vehicles equipped with in-cab cameras to support driver safety •42% reduction in Workers Compensation cost per hour worked versus prior year | ||||||||||||||||
| Quality | Environment | ||||||||||||||||
•Completed comprehensive Sustainability Priority Assessment to help align sustainability strategy with stakeholder needs •PIT Crews drove operational improvements across our materials product lines •Advanced technology deployments in concrete product quality measurement and management •Cross-functional Enterprise Risk Management (ERM) Committee supported our ERM program | •#1 in the nation for total ready mix plant Environmental Product Declaration (EPD) generators verified by the National Ready Mixed Concrete Association for second year in a row •28% of diesel consumption was renewable diesel, primarily in California and Oregon •Asphalt plants in Montana and Wyoming were the first to receive ENERGY STAR® certification in each state •Furthered water efficiency technology adoption and water reuse practices | ||||||||||||||||

| Proxy Statement Summary | ||||||||
| Stakeholder Engagement | Process | Next Steps | |||||||||||||||||||||||||||
•Board of Directors •Business Partners •Company Leadership •Customers •Industry Associations •Insurer •Investors •Suppliers •Team Members | •Compilation of relevant topics following Global Reporting Initiative (GRI) guidelines •Financial and impact assessment •Interviews and surveys •Internal analysis and report of deep insights into topics | •Strategic focus on top 10 priorities •Formalizing associated workstreams •Coordination with Enterprise Risk Management •Enhanced reporting of sustainability initiatives for key topics | |||||||||||||||||||||||||||
Proxy Statement Summary | ||||||||
![]() | Oversight Of Sustainability | ||||

Board of Directors | ||
| Class III terms expire at the 2026 annual meeting: | |||||
| Karen B. Fagg | |||||
| Brian R. Gray | |||||
Class I terms expire at the 2027 annual meeting: | |||||
| German Carmona Alvarez | |||||
| Thomas W. Hill | |||||
Class II terms expire at the 2027 annual meeting: | |||||
| Patricia Chiodo | |||||
| Patricia L. Moss | |||||
| William J. Sandbrook | |||||
Board of Directors: Item 1. Election of Directors | ||||||||
| The board of directors recommends that the stockholders vote “FOR” the election of each nominee. | ![]() | FOR | ||||||||||||||||||
Board of Directors: Item 1. Election of Directors | ||||||||
![]() | Karen B. Fagg | |||||||||||||
Age: | Independent Director Since: | Committees: | ||||||||||||
72 | 2023 | Chair of the Board | ||||||||||||
Nominating and Governance | ||||||||||||||
Key Contributions to the Board: Through her management experience and knowledge in the fields of engineering, environment, and energy resource development, including four years as director of the Montana Department of Natural Resources and Conservation and over eight years as president, chief executive officer, and chair of her own transportation and water resources engineering services company, Ms. Fagg contributes experience in responsible natural resource development with an informed perspective of the construction, engineering, and energy industries. She also provides insights on executive leadership, managing enterprise risks, workforce management, and succession planning. | ||||||||||||||
Professional Highlights •Vice president of DOWL LLC, dba DOWL HKM, an engineering and design firm, from April 2008 until her retirement in December 2011. •President of HKM Engineering, Inc., an engineering and environmental services firm, from April 1995 to June 2000, and chair, chief executive officer, and majority owner from June 2000 through March 2008. HKM Engineering, Inc. merged with DOWL LLC in April 2008. •Employed with MSE, Inc., Butte, Montana, an energy research and development company, from 1976 through 1988, and vice president of operations and corporate development director from 1993 to April 1995. •Director of the Montana Department of Natural Resources and Conservation, the state agency charged with promoting stewardship of Montana’s water, soil, energy, and rangeland resources from 1989 through 1992. Other Experience: •Former director of publicly traded MDU Resources, an energy delivery business, from November 2005 until May 2023. •Director and member of the quality committee of the Intermountain Health Peaks Region Board, a health care provider, since January 2023. •Director and finance committee chair of the Montana State Fund, the state’s largest workers’ compensation insurance company, from March 2021 to present; Director of SCL Health Montana Regional Board from January 2020 to present, including a term as chair; and member of Carroll College Board of Trustees from 2005 through 2010, and a member of the executive committee from August 2019 through June 2022. •Former member of several regional, state, and community boards, including director of St. Vincent’s Healthcare from October 2003 to October 2009 and January 2016 through January 2020, including a term as chair; director of the Billings Catholic Schools Board from December 2011 through December 2018, including a term as chair; the First Interstate BancSystem Foundation from June 2013 to 2016; the Montana Justice Foundation from 2013 to 2015; Montana Board of Investments from 2002 through 2006; Montana State University’s Advanced Technology Park from 2001 to 2005; and Deaconess Billings Clinic Health System from 1994 to 2002. | ||||||||||||||
Board of Directors: Item 1. Election of Directors | ||||||||
![]() | Brian R. Gray | |||||||||||||
Age: | Director Since: | |||||||||||||
55 | 2023 | |||||||||||||
President and Chief Executive Officer | ||||||||||||||
Key Contributions to the Board: Serving as president and chief executive officer of Knife River Corporation since 2023, Mr. Gray is the only officer of the company that serves on our board. With over 30 years of experience at the company, he brings industry experience to the board, as well as extensive knowledge of our company and its business operations. He contributes valuable insight into management’s views and perspectives and the day-to-day operations of the company. | ||||||||||||||
Professional Highlights •President of the company since March 2023 and chief executive officer since May 2023. Mr. Gray has led the implementation and execution of Knife River’s growth strategy, which is built on the platform of operating in mid-size, higher-growth markets, being vertically integrated, relentlessly pursuing continuous improvement in all aspects of the business, and maintaining the “Life at Knife” culture of putting people first and building strong teams. As CEO, Mr. Gray introduced the company’s “Competitive EDGE” initiatives to support the growth strategy and help drive long-term profitability. Mr. Gray also was instrumental in launching Knife River’s “I Choose Safety” program in 2025. •Region president of the company’s Northwest segment from January 2012 to December 2022, where he led the acquisition of eight companies and was influential in the development of the Knife River Training Center and corporate-wide safety, training and sustainability programs. Mr. Gray also established the company’s coaching clinic, its “Life at Knife” recruiting effort and the expansion of its Training and Development department. Other Experience: •Member of the board of directors of the National Ready Mixed Concrete Association, an industry association, since March 2022; member of the board of directors from March 2018 to March 2021; member of the executive committee for one-year terms in 2020, 2022, 2024, and 2025. •Member of the board of directors of Oregon State University’s Construction Education Foundation from 2012 to present; president for a one-year term in 2022; and vice president for a one-year term in 2020. Mr. Gray was inducted as a member of the academy of distinguished engineers and was the recipient of the Oregon Stater Award in 2022, which recognizes alumni who have a profound impact on the engineering profession. •Member of the board of directors of the Associated General Contractors Oregon-Columbia chapter, an industry association, since 2007; president from 2017 to 2018; first vice president from 2016 to 2017; second vice president from 2015 to 2016; and secretary from 2014 to 2015. | ||||||||||||||
Board of Directors: Item 1. Election of Directors | ||||||||
![]() | German Carmona Alvarez | |||||||||||||
Age: | Independent Director Since: | Committees: | ||||||||||||
57 | 2023 | Audit | ||||||||||||
Compensation (Chair) | ||||||||||||||
Key Contributions to the Board: With over 30 years of experience in corporate strategy, digital transformation, and human capital management, and 15 years of global experience in the building materials industry, Mr. Carmona Alvarez brings broad industry and related expertise to the board. Mr. Carmona Alvarez also contributes experience and expertise in finance and mergers and acquisitions. | ||||||||||||||
Professional Highlights •Global president of digital consulting of Wood PLC, Aberdeen, United Kingdom, a consulting and engineering company, from January 2023 to October 2025, and global president of applied intelligence from August 2021 to December 2022. Director of Wood PLC USA, the United States affiliate of Wood PLC, from February 2022 to October 2025. •Senior vice president and global digital practice leader of NEORIS, a digital strategy consulting firm with presence in 27 countries focusing on the design and execution of agile digital transformation programs, from March 2019 to July 2021. •Executive vice president of finance, information technology and shared services of CEMEX Inc., a global building materials company from 2016 to 2019; senior vice president of continuous improvement and commercial strategy from 2014 to 2016; senior vice president of aggregates and mining resources from 2012 to 2014; global vice president of organization, compensation and benefits from 2009 to 2012; global vice president of human resources planning and development from 2006 to 2009; corporate vice president of human capital from 2004 to 2006. •Senior principal of strategy and operations of The Boston Consulting Group, a global management consulting firm, from 2000 to 2004. •Principal of strategy and operations at Booz Allen Hamilton, a global management and technology consulting firm, from 1993 to 2000. Other Experience: •Former director of publicly traded MDU Resources, an energy delivery business, from November 2022 until May 2023. •Former board chair of Strata.ai, a strategy and venture building firm focused on decision science, artificial intelligence and augmented reality, from 2020 to 2022. •Former board of trustees of ITESM/Tec Milenio, a private institution of higher education, from 2010 to 2017. | ||||||||||||||
Board of Directors: Item 1. Election of Directors | ||||||||
![]() | Thomas W. Hill | |||||||||||||
Age: | Independent Director Since: | Committees: | ||||||||||||
69 | 2024 | Compensation | ||||||||||||
Nominating and Governance | ||||||||||||||
Key Contributions to the Board: With over 40 years of experience in aggregate, asphalt, cement, and ready-mix, Mr. Hill brings strong business leadership, supports disciplined and strategic growth, and has extensive experience in capital markets and capital allocation strategy. Mr. Hill also contributes experience in corporate governance, overseeing enterprise risk management, and employee recruitment and engagement. | ||||||||||||||
Professional Highlights •Founder of Summit Materials, Inc., formerly a publicly traded integrated supplier of construction materials; president and chief executive officer, including a member of the board of directors from August 2009 to September 2020; senior advisor from September 2020 to December 31, 2020; and served as a consultant from January 2021 to July 2023. •Chief executive officer of Oldcastle, Inc., an integrated supplier of construction materials and services, from July 2006 to July 2008; chief executive officer of the materials division, Oldcastle Materials, Inc., from January 2000 to July 2006; and president from 1991 to January 2000. Other Experience: •Former director of CRH plc, an integrated supplier of aggregates, cement, asphalt, ready-mixed concrete, and paving and construction services, Dublin, Ireland, from 2002 to June 2008. •Research and consulting services to Firstlight Management, LP, an investment fund, from June 2022 to February 2024. •Former treasurer of the National Asphalt Pavement Association, the National Stone Association (now National Stone, Sand and Gravel Association), and the American Road and Transportation Builders Association, including chair from 2002 to 2004, all industry associations. •Inducted to the Pit & Quarry Hall of Fame in 2024, which recognizes individuals who have made significant contributions to the aggregate industry. | ||||||||||||||
Board of Directors: Item 1. Election of Directors | ||||||||
![]() | Patricia Chiodo | |||||||||||||
Age: | Independent Director Since: | Committees: | ||||||||||||
60 | 2024 | Audit | ||||||||||||
Compensation | ||||||||||||||
Key Contributions to the Board: With substantial experience in both public and private companies, Ms. Chiodo contributes financial acumen and operational understanding in mergers and acquisitions, corporate strategy, risk management, financial reporting, capital markets, and investor relations. Ms. Chiodo also provides insight on employee recruitment and development, and compensation. | ||||||||||||||
Professional Highlights •Chief financial officer of Verra Mobility Corporation, a publicly traded smart mobility technology solutions and services company, from June 2015 to July 2022. •Co-president and chief financial officer of Origami Owl, LLC, a custom jewelry company, from September 2013 to April 2015. •Chief financial officer and senior vice president of RSC Holdings, Inc., formerly a publicly traded construction and industrial equipment rental company, from October 2010 to April 2012; vice president and controller from April 2005 to August 2010; and assistant controller from 2002 to April 2005. Other Experience: •Director of UNS Energy Corporation, a vertically integrated utility services holding company, since February 2022, and chair of the audit committee since July 2024. •Director of Embark Technology, Inc., formerly a publicly traded autonomous trucking software company, from September 2021 to August 2023, including chair of the audit committee and a member of the compensation committee. •Director of the advisory board of The Crosby Group, a lifting and rigging equipment company, from June 2019 to January 2023, including a member of the audit committee. •Director of Acme Lift Company, LLC, a wholesale rental equipment company, from March 2013 to March 2015. | ||||||||||||||
Board of Directors: Item 1. Election of Directors | ||||||||
![]() | Patricia L. Moss | |||||||||||||
Age: | Independent Director Since: | Committees: | ||||||||||||
72 | 2023 | Audit (Chair) | ||||||||||||
Compensation | ||||||||||||||
Key Contributions to the Board: With substantial experience in the finance and banking industry, including service on the boards of public banking and investment companies, Ms. Moss contributes broad knowledge of finance, business development, human resources, and compliance oversight, as well as public company governance to the board. Through her business experience and knowledge of the Pacific Northwest, Ms. Moss also provides insight on state, local, and regional economic and political issues where a significant portion of our operations and employees are located. | ||||||||||||||
Professional Highlights •President and chief executive officer of Cascade Bancorp, a financial holding company, from 1998 to January 2012; chief executive officer of Cascade Bancorp’s principal subsidiary, Bank of the Cascades, from 1998 to January 2012, serving also as president from 1998 to 2003; and chief operating officer, chief financial officer and secretary of Cascade Bancorp from 1987 to 1998. Other Experience: •Former director of publicly traded MDU Resources, an energy delivery business, from November 2003 until May 2023. •Vice chair of the Oregon Investment Council, which oversees the investment and allocation of all state of Oregon trust funds, from December 2018 to March 2021, including a member of the investment committee. •Director of First Interstate BancSystem, Inc., a publicly traded financial services holding company, since May 2017, including a member of the compensation and human capital committee, and the governance and nominating committee. •Director of Cascade Bancorp and Bank of the Cascades from 1993, and vice chair from January 2012 until May 2017, when Cascade Bancorp merged into First Interstate BancSystem, Inc., and became First Interstate Bank. Trustee of First Interstate Bank Foundation since June 2025. •Chair of the Bank of the Cascades Foundation Inc. from 2014 to July 2018; co-chair of the Oregon Growth Board, a state board created to improve access to capital and create private-public partnerships, from May 2012 through December 2018. •A former member of the Board of Trustees for the Aquila Group of Funds, whose core business is mutual fund management and provision of investment strategies to fund shareholders, from January 2002 to May 2005 (one fund) and from June 2015 to 2024 (three funds). •Former director of the Oregon Investment Fund Advisory Council, a state-sponsored program to encourage the growth of small businesses in Oregon; the Oregon Business Council, with a mission to mobilize business leaders to contribute to Oregon’s quality of life and economic prosperity; the North Pacific Group, Inc., a wholesale distributor of building materials, industrial, and hardwood products; and Clear Choice Health Plans Inc., a multi-state insurance company. Other Current Public Boards: •First Interstate BancSystem, Inc. | ||||||||||||||
Board of Directors: Item 1. Election of Directors | ||||||||
![]() | William J. Sandbrook | |||||||||||||
Age: | Independent Director Since: | Committees: | ||||||||||||
68 | 2023 | Audit | ||||||||||||
Nominating and Governance (Chair) | ||||||||||||||
Key Contributions to the Board: With over 30 years of experience in mining, building materials, construction industries, and public companies, Mr. Sandbrook brings critical knowledge of the construction materials and contracting industry to the board. Mr. Sandbrook also contributes strong business leadership and management capabilities and insights through his various roles as CEO. | ||||||||||||||
Professional Highlights •President of U.S. Concrete, Inc., formerly a publicly traded construction materials supplier, from August 2011 to April 2019; CEO and director from August 2011 to April 2020; director from April 2020 to May 2021; chairman of its board of directors from May 2018 to April 2020; and vice chairman from September 2017 to May 2018. •Chief executive officer of Oldcastle Inc.’s Products and Distribution Group, an integrated supplier of construction materials and services, from June 2008 to August 2011; chief executive officer of Oldcastle’s Architectural Products Group, responsible for Oldcastle’s U.S. and Canadian operations, as well as CRH plc’s business in South America, from 2006 to 2008; and president of Oldcastle Materials West Division from 2003 to 2006. •Chairman and Co-CEO of Andretti Acquisition Corp., formerly a publicly traded special purpose acquisition company, from January 2022 to April 2024. •Executive chairman and chairman of the board of Andretti Acquisition Corp. II, a publicly traded special purpose acquisition company, since September 2024.1 Other Experience: •Director of Comfort Systems USA, Inc., a publicly traded mechanical, electrical, and plumbing services provider, since April 2018, where he previously served as a member of the audit committee, and currently serves as a member of the compensation and human capital and nominating, governance and sustainability committees. •Chair of the National Ready Mixed Concrete Association, an industry association, from March 2019 to March 2020. Mr. Sandbrook was awarded the William B. Allen award from the National Ready Mixed Concrete Association in March 2018 in recognition of his commitment to the concrete industry. •Inducted to the Pit & Quarry Hall of Fame in 2018, which recognizes individuals who have made significant contributions to the aggregate industry. Other Current Public Boards: •Comfort Systems USA, Inc. •Andretti Acquisition Corp. II (a special purpose acquisition company) | ||||||||||||||
1 Mr. Sandbrook serves as executive chairman and chairman of the board of Andretti Acquisition Corp. II, a special purpose acquisition company (SPAC). Our board does not consider Mr. Sandbrook to be an executive officer of a publicly-traded company given that his service as executive chairman of a SPAC does not require the same time commitment as being an executive officer of a typical publicly-traded company. | ||||||||||||||
Board of Directors: Item 1. Election of Directors | ||||||||
Board of Directors: Item 1. Election of Directors | ||||||||
| Carmona Alvarez | Chiodo | Fagg | Gray | Hill | Moss | Sandbrook | |||||||||||||||||||||||
| Skills & Expertise | |||||||||||||||||||||||||||||
![]() | EXECUTIVE LEADERSHIP | ü | ü | ü | ü | ü | ü | ü | |||||||||||||||||||||
![]() | ACCOUNTING / AUDITING | ü | ü | ü | ü | ||||||||||||||||||||||||
![]() | CAPITAL MARKETS / FINANCE | ü | ü | ü | ü | ||||||||||||||||||||||||
![]() | BUSINESS DEVELOPMENT | ü | ü | ü | ü | ||||||||||||||||||||||||
![]() | TECHNOLOGY / CYBERSECURITY / INNOVATION | ü | ü | ||||||||||||||||||||||||||
![]() | LEGAL / RISK MANAGEMENT / COMPLIANCE | ü | ü | ü | ü | ü | ü | ||||||||||||||||||||||
![]() | INDUSTRY EXPERIENCE | ü | ü | ü | ü | ||||||||||||||||||||||||
![]() | PUBLIC COMPANY BOARD OVERSIGHT / CORPORATE GOVERNANCE | ü | ü | ü | ü | ü | |||||||||||||||||||||||
![]() | HUMAN CAPITAL MANAGEMENT | ü | ü | ü | ü | ü | ü | ü | |||||||||||||||||||||
![]() | ENVIRONMENT / SUSTAINABILITY | ü | ü | ü | ü | ||||||||||||||||||||||||
![]() | REGULATORY / GOVERNMENT / PUBLIC POLICY | ü | ü | ü | |||||||||||||||||||||||||
Board of Directors: Item 1. Election of Directors | ||||||||
| Carmona Alvarez | Chiodo | Fagg | Gray | Hill | Moss | Sandbrook | |||||||||||||||||||||||
| Gender/Age/Tenure* | |||||||||||||||||||||||||||||
| Gender | M | F | F | M | M | F | M | ||||||||||||||||||||||
| Age | 57 | 60 | 72 | 55 | 69 | 72 | 68 | ||||||||||||||||||||||
| Tenure | 4 | 2 | 21 | 3 | 2 | 23 | 3 | ||||||||||||||||||||||
| Race/Ethnicity/Nationality | |||||||||||||||||||||||||||||
| African American/Black | |||||||||||||||||||||||||||||
| Alaskan Native or Native American | |||||||||||||||||||||||||||||
| Asian | |||||||||||||||||||||||||||||
| Hispanic/Latinx | ü | ||||||||||||||||||||||||||||
| Native Hawaiian or Pacific Islander | |||||||||||||||||||||||||||||
White (not Hispanic or Latinx origins) | ü | ü | ü | ü | ü | ü | |||||||||||||||||||||||
Two or more Races or Ethnicities | |||||||||||||||||||||||||||||
*Ages are current as of December 31, 2025 and tenure includes time of service on the MDU Resources board of directors prior to the Separation. | |||||||||||||||||||||||||||||

Board of Directors: Item 1. Election of Directors | ||||||||
Corporate Governance and the Board of Directors | ||
Corporate Governance and the Board of Directors | ||||||||
Corporate Governance and the Board of Directors | ||||||||
![]() | ![]() | ![]() | ||||||||||||||||||||||||||||||
| Engagement | + | Communication | + | Feedback | ||||||||||||||||||||||||||||
Executive Management, Investor Relations, and Board Members engage on a regular basis with Institutional Investors, Sell-Side Analysts, Retail Stockholders, Holders of Bonds and Rating Agencies to solicit feedback and provide updates on a variety of corporate governance and operational matters. Our engagement efforts include: •Virtual and In-Person One-on-One Meetings •Investor Group Meetings •Quarterly Earnings Conference Calls •Written and Electronic Communications •Company-Hosted Events and Presentations •Webcasts with the Investment Community •Sell-Side Investor Conferences | Knife River routinely interacts and communicates with stockholders and interested parties through a number of forums. Our key channels of communication include: •Knife River IR website at investors.kniferiver.com •Sustainability Report •Quarterly Earnings Webcasts •Public Events and Presentations •Annual Proxy Statement •SEC Filings •Annual Report •Disclosures to Various Ratings Assessors •Annual Stockholder Meeting •Press Releases | Knife River actively shares stockholder perspectives, trends and developments about corporate governance matters with our board as we consider evolving our governance and sustainability practices and improve our disclosures. Some of the key topics of engagement include: •EDGE Initiatives •Long-Term Growth Strategy •Margin Goal •Capital Allocation Priorities •Public Infrastructure Funding •Enterprise Risk Management •Competitive Dynamics •Sustainability •Board Composition •Executive Compensation •Management Background •History of Knife River | ||||||||||||||||||||||||||||||
Outcomes of Stockholder Engagement | ||||||||
•Eliminated supermajority voting requirements in the company’s second amended and restated certificate of incorporation and second amended and restated bylaws | ||||||||
•2025 executive compensation tied to executing the company’s strategy to drive long-term, profitable growth, including financial and safety goals | ||||||||
•Increased disclosure of sustainability initiatives and metrics | ||||||||
Corporate Governance and the Board of Directors | ||||||||
Corporate Governance and the Board of Directors | ||||||||
| The Board | ||||||||||||||||||||||||||
![]() | While the board is ultimately responsible for risk oversight at our company, our standing board committees assist the board in fulfilling its oversight responsibilities in certain areas of risk. | |||||||||||||||||||||||||
![]() | ![]() | ![]() | ||||||||||||||||||||||||
| Audit Committee | Compensation Committee | Nominating and Governance Committee | ||||||||||||||||||||||||
| Risk Oversight Responsibilities | Risk Oversight Responsibilities | Risk Oversight Responsibilities | ||||||||||||||||||||||||
| ü | Financial Reporting and Internal Controls | ü | Executive Compensation | ü | Board Organization | |||||||||||||||||||||
| ü | Cybersecurity and Artificial Intelligence | ü | Incentive Plans | ü | Board Membership and Structure | |||||||||||||||||||||
| ü | Compliance with Legal and Regulatory Requirements | ü | Conflicts of Interest Assessment | ü | Succession Planning | |||||||||||||||||||||
| ü | Climate Change Risks and Environmental and Social Sustainability | ü | Director Compensation Policy | ü | Corporate Governance | |||||||||||||||||||||
![]() | ![]() | ![]() | ||||||||||||||||||||||||
| Management | ||||||||||||||||||||||||||
![]() | The management policy committee meets monthly, or more frequently as warranted, to receive reports on safety, operations, and business development, and to discuss the company’s challenges and opportunities. Reports are also provided by the company’s financial, human resources, legal, and information technology departments. Special presentations are made by other employees on matters that affect the company’s operations. The company has also developed a robust compliance program to promote a culture of compliance, consistent with the right “tone at the top,” to mitigate risk. The program includes training and adherence to our code of conduct and legal compliance guide. We further mitigate risk through our internal audit and legal departments. | |||||||||||||||||||||||||
Corporate Governance and the Board of Directors | ||||||||
Corporate Governance and the Board of Directors | ||||||||
| Audit Committee | ||||||||
The audit committee is a separately-designated committee established in accordance with Section 3(a)(58)(A) of the Exchange Act and is governed by a written charter. The board determined that all audit committee members are “audit committee financial experts” as defined by SEC rules, and all audit committee members are financially literate within the meaning of the listing standards of the NYSE. All members also meet the independence standard for audit committee members under our director independence guidelines, the NYSE listing standards, and SEC rules. The audit committee assists the board in fulfilling its oversight responsibilities to the stockholders and serves as a communication link among the board, management, the independent registered public accounting firm, and the internal auditors. | ||||||||||||||
Committee Members: Patricia L. Moss (Chair) German Carmona Alvarez Patricia Chiodo William J. Sandbrook | ||||||||||||||
Committee Meetings in 2025: 8 | ||||||||||||||
Corporate Governance and the Board of Directors | ||||||||
Corporate Governance and the Board of Directors | ||||||||
| Compensation Committee | ||||||||
The compensation committee consists entirely of independent directors within the meaning of the company’s corporate governance guidelines and the NYSE listing standards and who meet the definitions of non-employee directors for purposes of Rule 16-b under the Exchange Act. The compensation committee is governed by a written charter and assists the board in fulfilling its responsibilities relating to the company’s compensation policies and programs. It has direct responsibility for determining compensation for our Section 16 officers and for overseeing the company’s management of compensation risk in its areas of responsibility. In determining the long-term incentive component of CEO compensation, the compensation committee may consider, among others, the company’s performance and relative stockholder return, the value of similar incentive awards given to CEOs at comparable companies and the awards given to the company’s CEO in past years. | ||||||||||||||
Committee Members: German Carmona Alvarez (Chair) Patricia Chiodo Thomas W. Hill Patricia L. Moss | ||||||||||||||
Committee Meetings in 2025: 5 | ||||||||||||||
Corporate Governance and the Board of Directors | ||||||||
Nominating and Governance Committee | ||||||||
The nominating and governance committee is governed by a written charter and provides recommendations to the board with respect to: •Board organization, membership, and function; •Committee structure and membership; •Succession planning for our executive management and directors; and •Our corporate governance guidelines. The nominating and governance committee assists the board in overseeing the management of risks in the committee’s areas of responsibility. The committee identifies individuals qualified to become directors and recommends to the board the director nominees for the next annual meeting of stockholders. | ||||||||||||||
Committee Members: William J. Sandbrook (Chair) Karen B. Fagg Thomas W. Hill | ||||||||||||||
Committee Meetings in 2025: 4 | ||||||||||||||
Corporate Governance and the Board of Directors | ||||||||
![]() Annual Consideration | ![]() Recruiting | ![]() Skills Assessment | ![]() Stockholder Input | |||||||||||||||||||||||||||||||||||||||||
The nominating and governance committee annually considers the composition and needs of the board. | We recruit and evaluate a diverse pool of potential director candidates. | We review, including when considering potential candidates, the appropriate skills and characteristics required of board members. | Our corporate governance guidelines include our policy on consideration of director candidates recommended to us by stockholders. We will consider such candidates in the same manner we consider other nominees. | |||||||||||||||||||||||||||||||||||||||||
Corporate Governance and the Board of Directors | ||||||||

Corporate Governance and the Board of Directors | ||||||||
| Ownership Threshold: | 3% of outstanding shares of our common stock | ||||||||||
| Nominating Group Size: | Up to 20 stockholders may combine to reach the 3% ownership threshold | ||||||||||
| Holding Period: | Continuously for three years | ||||||||||
| Number of Nominees: | The greater of two nominees or 20% of our board | ||||||||||
Corporate Governance and the Board of Directors | ||||||||
Corporate Governance Materials | Website | |||||||
| • | Bylaws | investors.kniferiver.com/governance/governance-documents/ | ||||||
| • | Corporate Governance Guidelines | investors.kniferiver.com/governance/governance-documents/ | ||||||
| • | Board Committee Charters for the Audit, Compensation and Nominating and Governance Committees | investors.kniferiver.com/governance/governance-documents/ | ||||||
| • | Leading With Integrity Guide | kniferiver.com/integrity/ | ||||||
Compensation of Non-Employee Directors | ||
Compensation of Non-Employee Directors | ||||||||
| Name | Fees Earned or Paid in Cash ($) | Stock Awards ($)(1)(2) | All Other Compensation ($)(3) | Total ($) | ||||||||||||||||
German Carmona Alvarez(4) | 127,917 | 150,000 | 103 | 278,020 | ||||||||||||||||
| Patricia Chiodo | 110,000 | 150,000 | 103 | 260,103 | ||||||||||||||||
| Karen B. Fagg | 235,000 | 175,000 | 103 | 410,103 | ||||||||||||||||
| Thomas W. Hill | 110,000 | 150,000 | 103 | 260,103 | ||||||||||||||||
| Patricia L. Moss | 130,000 | 150,000 | 103 | 280,103 | ||||||||||||||||
| William J. Sandbrook | 125,000 | 150,000 | 103 | 275,103 | ||||||||||||||||
(1) | The amounts reflected in the column represent the aggregate grant date fair value of RSUs granted to our directors in 2025. The grant date fair value is calculated in accordance with generally accepted accounting principles for stock-based compensation in Accounting Standards Codification Topic 718 and as described in Note 12 of our audited financial statements in our 2025 Form 10-K. The amount paid in cash for fractional shares is included in the amount reported in the stock awards column to this table. | |||||||||||||||||||
(2) | The number of RSUs outstanding for each of our non-employee directors as of December 31, 2025, is as follows: | |||||||||||||||||||
| Name | Number of Unvested Restricted Stock Units | |||||||
| German Carmona Alvarez | 1,551 | |||||||
| Patricia Chiodo | 1,551 | |||||||
| Karen B. Fagg | 1,810 | |||||||
| Thomas W. Hill | 1,551 | |||||||
| Patricia L. Moss | 1,551 | |||||||
| William J. Sandbrook | 1,551 | |||||||
(3) | Includes group life insurance premiums paid on behalf of the director as applicable. | |||||||||||||||||||
(4) | The amount paid in cash to Mr. Carmona Alvarez reflects the prorated increase in cash retainer for his service as the chair of the compensation committee on June 1, 2025. | |||||||||||||||||||
Compensation of Non-Employee Directors | ||||||||
| Security Ownership | ||
Security Ownership | ||||||||
| Title of Class | Name and Address of Beneficial Owner | Amount and Nature of Beneficial Ownership | Percent of Class | |||||||||||||||||||||||
| Common Stock | T. Rowe Price Associates, Inc. | 3,791,537 | (1) | 6.7% | ||||||||||||||||||||||
1307 Point Street Baltimore, MD 21231 | ||||||||||||||||||||||||||
| Common Stock | The Vanguard Group | 6,044,184 | (2) | 10.69% | ||||||||||||||||||||||
100 Vanguard Blvd. Malvern, PA 19355 | ||||||||||||||||||||||||||
| Common Stock | BlackRock, Inc. | 6,707,973 | (3) | 11.9% | ||||||||||||||||||||||
50 Hudson Yards New York, NY 10001 | ||||||||||||||||||||||||||
(1) | Based solely on the Schedule 13G, Amendment No. 1, filed on November 14, 2025, reporting on beneficial ownership as of September 30, 2025, T. Rowe Price Associates, Inc. reported sole dispositive power with respect to 3,791,537 shares and sole voting power with respect to 3,763,847 shares. | |||||||||||||||||||||||||
(2) | Based solely on the Schedule 13G, Amendment No. 1, filed on February 13, 2024, reporting on beneficial ownership as of December 29, 2023, The Vanguard Group reported sole dispositive power with respect to 5,951,871 shares, shared dispositive power with respect to 92,313 shares, and shared voting power with respect to 35,540 shares. On March 27, 2026, The Vanguard Group further amended its Schedule 13G/A to disclose that as of March 13, 2026 (i) as a result of an internal realignment, it was no longer deemed to beneficially own shares of our common stock beneficially owned by certain of its subsidiaries and/or business divisions, and accordingly, it was no longer deemed to beneficially own any shares of our common stock and (ii) going forward, such subsidiaries and/or business divisions of The Vanguard Group will report beneficial ownership separately (on a disaggregated basis). | |||||||||||||||||||||||||
(3) | Based solely on the Schedule 13G, Amendment No. 1, filed on January 23, 2024, reporting on beneficial ownership as of December 31, 2023, BlackRock, Inc. reported sole voting power with respect to 6,595,920 shares and sole dispositive power with respect to 6,707,973 shares. | |||||||||||||||||||||||||
| Executive Compensation | ||
| The board of directors recommends a vote “FOR” the approval, on a non-binding advisory basis, of the compensation of the company’s named executive officers, as disclosed in this Proxy Statement. | ![]() | FOR | ||||||||||||||||||
Executive Compensation | ||||||||
| Name | Age | Present Corporate Position and Business Experience | |||||||||||||||
| Brian R. Gray | 55 | Mr. Gray was appointed president of the company, effective March 1, 2023, and chief executive officer, effective May 3, 2023. Prior to that, he was region president of the company’s subsidiary, Knife River Corporation - Northwest, effective January 11, 2012. Mr. Gray was appointed as a director of the company effective March 1, 2023. For more information about Mr. Gray, see the section entitled “Item 1. Election of Directors.” | |||||||||||||||
| Nathan W. Ring | 50 | Mr. Ring was appointed vice president and chief financial officer of the company, effective May 3, 2023. Prior to that, he obtained 21 years of experience with MDU Resources, an energy delivery business, including the following MDU Resources subsidiaries: Knife River Corporation (now known as KRC Materials, Inc.), MDU Construction Services Group, Inc., and Centennial Energy Resources, LLC. Prior to his service as vice president and chief financial officer, Mr. Ring was vice president of business development from November 2017 until May 2023. He also served as vice president, controller and chief accounting officer for MDU Resources from 2014 to 2016. Prior to these roles, Mr. Ring held positions as controller for Knife River and MDU Construction Services Group, Inc. | |||||||||||||||
| Karl A. Liepitz | 47 | Mr. Liepitz was appointed vice president, chief legal officer and secretary of the company, effective May 31, 2023. Prior to that, he was vice president, general counsel and secretary of MDU Resources, an energy delivery business, from February 2021 until May 2023. Prior to that, he was assistant general counsel and assistant secretary of MDU Resources, from January 2017 until February 2021; and senior attorney and assistant secretary from January 2016 until January 2017. He held legal positions of increasing responsibility with MDU Resources starting in August 2003. | |||||||||||||||
| Trevor J. Hastings | 52 | Mr. Hastings was appointed vice president and chief operating officer of the company, effective May 31, 2023. Prior to that, he was president and chief executive officer of WBI Energy, Inc., an MDU Resources subsidiary and natural gas transportation provider, from October 2017 until May 2023. Prior to that, he was vice president of business development and operations support of Knife River Corporation (now known as KRC Materials, Inc.), from January 2012 until October 2017; and vice president of corporate development from January 2007 until January 2012. | |||||||||||||||
| Glenn R. Pladsen | 59 | Mr. Pladsen was appointed vice president and chief excellence officer of the company, effective January 1, 2025. Prior to that, he was vice president of support services of the company, from May 2023 to December 2024. Mr. Pladsen was vice president - operations support of Knife River Corporation (now known as KRC Materials, Inc.) from January 2020 to May 2023; and senior information technology director from February 2007 to January 2020. | |||||||||||||||
| Marney L. Kadrmas | 56 | Ms. Kadrmas was appointed vice president and chief accounting officer of the company, effective February 28, 2025. Prior to that, she was chief accounting officer of the company from May 31, 2023 to February 27, 2025. Ms. Kadrmas previously served as vice president, region controller and assistant secretary of the company‘s subsidiary, Knife River Corporation - Northwest, from January 2022 until May 2023; and region controller and assistant secretary from July 2014 to December 2021. Prior to that, she was director of finance and accounting for Knife River Corporation (now known as KRC Materials, Inc.) from June 2012 to December 2014; director of internal controls from March 2012 to June 2012; and financial planning and reporting manager from July 2005 to March 2012. | |||||||||||||||
Sarah L. LaChapelle | 46 | Ms. LaChapelle was appointed vice president and chief people officer of the company, effective April 19, 2025. Prior to that, she was vice president of human resources of the company from January 1, 2024 to April 18, 2025. Ms. LaChapelle previously served as senior director of human resources of the company from May 2023 to December 2023; and vice president - administration of the company’s subsidiary, Knife River Corporation - Northwest, from January 2022 until May 2023. Prior to that, she was the director of human resources from September 2008 to January 2022; and human resources manager from August 2005 to September 2008 of Knife River Corporation - Northwest. | |||||||||||||||
Executive Compensation | ||||||||
Brian R. Gray | President and Chief Executive Officer (CEO) | |||||||||||||
Nathan W. Ring | Vice President and Chief Financial Officer (CFO) | |||||||||||||
Trevor J. Hastings | Vice President and Chief Operating Officer (COO) | |||||||||||||
Karl A. Liepitz | Vice President, Chief Legal Officer and Secretary (CLO) | |||||||||||||
Glenn R. Pladsen(1) | Vice President and Chief Excellence Officer (CXO) | |||||||||||||
(1) | Mr. Pladsen became a NEO in 2025. | |||||||||||||
Executive Compensation | ||||||||


Executive Compensation | ||||||||
| What We Do | |||||
| þ | Pay for Performance - Annual cash incentive and the performance stock units (PSUs) portion of the long-term incentive are tied to performance measures set by the compensation committee and comprise the largest portion of executive compensation. | ||||
| þ | Independent Compensation Committee - All members of the compensation committee meet the independence standards under the NYSE listing standards and the SEC rules. | ||||
| þ | Independent Compensation Consultant - The compensation committee retains an independent compensation consultant to evaluate executive compensation plans and practices. | ||||
| þ | Competitive Compensation - Executive compensation reflects executive performance, experience, relative value compared to other positions within the company, relationship to competitive market value compensation, corporate and business segment economic environment, and the actual performance of the company against pre-established goals. | ||||
| þ | Annual Cash Incentive - Payment of annual cash incentive awards is based on overall pre-established annual company performance measures. | ||||
| þ | Long-Term Equity Incentive - 2025 long-term incentive awards may be earned at the end of a three-year period. Payment of PSUs, which represent 65% of each named executive officer’s long-term incentive, are based on the achievement of pre-established performance measures. Payment of RSUs, which represent 35% of each named executive officer’s long-term incentive, are based on continued employment of the executive through the end of the three-year period. All long-term incentives are settled with shares of common stock, which promotes stock ownership by our named executive officers and aligns their interests with those of stockholders. | ||||
| þ | Balanced Mix of Pay Components - The target compensation mix represents a balance of annual cash and long-term equity-based compensation. | ||||
| þ | Tally Sheets - Annual review of compensation tally sheets for executive officers, reflecting the executive officer’s target total compensation, realized total compensation, outstanding equity awards, and applicable retirement benefits. | ||||
| þ | Double-Trigger Change in Control Severance Plan - We maintain reasonable severance practices in line with market practices, including double-trigger change in control provisions in the Change in Control Severance Plan adopted in August of 2024 and in employee equity awards granted after adoption of the Change in Control Severance Plan. | ||||
| þ | Annual Compensation Risk Analysis - Risks related to our compensation programs are regularly analyzed through an annual compensation risk assessment. | ||||
| þ | Stock Ownership and Retention Requirements - Executive officers are required to own, within five years of appointment or promotion, company common stock equal to a multiple of their base salary. Our CEO is required to own stock equal to six times his base salary, and the other named executive officers are required to own stock equal to two or three times their base salary. Equity incentive awards that have vested into shares of common stock must also be held until stock ownership requirements are met, less any shares that are withheld to cover tax withholding obligations upon the vesting of such awards. | ||||
| þ | Clawback Policy - If the company’s audited financial statements are restated due to any material noncompliance with the financial reporting requirements under the securities laws, the company is required to pursue recoupment of certain “erroneously awarded” compensation paid to our executive officers. | ||||
| What We Do Not Do | |||||
| ý | Stock Options - The company does not use stock options as a form of incentive compensation. | ||||
| ý | Employment Agreements - Executives do not have employment agreements entitling them to continued employment or specific payments upon termination. | ||||
| ý | Perquisites - Executives do not receive perquisites that materially differ from those available to employees in general. | ||||
| ý | Hedge Stock - Executives are not allowed to hedge company securities. | ||||
| ý | Pledge Stock - Executives are not allowed to pledge company securities in margin accounts or as collateral for loans. | ||||
| ý | No Dividends or Dividend Equivalents on Unvested Shares - We do not provide for payment of dividends or dividend equivalents on unvested share awards. | ||||
| ý | Tax Gross-Ups - Executives do not receive tax gross-ups on their compensation. | ||||
Executive Compensation | ||||||||
| Component | Purpose | How Determined | How it Links to Performance | |||||||||||
Base Salary | Provides sufficient, regularly paid income to attract and retain executives with the knowledge, skills, and abilities necessary to successfully execute their job responsibilities. | Base salaries are recommended by the CEO for executives other than the CEO to the compensation committee using analysis provided by the independent compensation consultant to target compensation within range of the 50th percentile using peer company and salary survey data. The compensation committee recommends, and the board determines, the base salary of the CEO based on input from the independent compensation consultant. | Base salary is a means to attract and retain talented executives capable of driving success and performance. | |||||||||||
Annual Cash Incentive | Provides an opportunity to earn annual cash incentive compensation based on the achievement of financial and operating results important to the success of the company. | The annual cash incentive target is a percentage of base salary for the given executive position established by the compensation committee for executives other than the CEO and by the full board for the CEO. Actual payment of the incentive is determined by the compensation committee based on the achievement of the performance measures and goals. The compensation committee approves the payment for executives other than the CEO and the full board approves the payment for the CEO. | Annual cash incentive performance measures are tied to the achievement of pre-established financial and safety goals, in each case, aimed to drive the success of the company. | |||||||||||
| Long-Term Incentive Awards | Aligns executive interests with shareholder interests, to reinforce the creation of long-term value and to provide a balanced portfolio of long-term incentives. | The CEO recommends the target award for executives other than the CEO to the compensation committee based on analysis provided by the independent compensation consultant. The compensation committee recommends, and the board determines, the target award for the CEO after consideration of input from the independent compensation consultant. PSUs represent 65% of a named executive officer’s long-term incentive award and RSUs represent 35% of a named executive officer’s long-term incentive award. | Fosters continued leadership in the company to achieve company objectives through retention of key executives as well as aligning the named executive officer’s interests with those of stockholders in increasing long-term stockholder value. | |||||||||||
Executive Compensation | ||||||||
NEO | Base Salary ($) | Target Annual Cash Incentive as a % of Base Salary | Target Long-Term Equity Incentive as a % of Base Salary | Total Target Compensation ($) | |||||||||||||
| Brian R. Gray | 1,000,000 | 120 | % | 375 | % | 5,950,000 | |||||||||||
| Nathan W. Ring | 545,000 | 75 | % | 170 | % | 1,880,250 | |||||||||||
| Trevor J. Hastings | 545,000 | 75 | % | 170 | % | 1,880,250 | |||||||||||
| Karl A. Liepitz | 485,000 | 75 | % | 170 | % | 1,673,250 | |||||||||||
| Glenn R. Pladsen | 425,000 | 75 | % | 125 | % | 1,275,000 | |||||||||||
Executive Compensation | ||||||||
NEO | 2025 Base Salary ($) | 2024 to 2025 Increase | ||||||||||||
| Brian R. Gray | 1,000,000 | 14 | % | |||||||||||
| Nathan W. Ring | 545,000 | 4 | % | |||||||||||
| Trevor J. Hastings | 545,000 | 4 | % | |||||||||||
| Karl A. Liepitz | 485,000 | 2 | % | |||||||||||
Glenn R. Pladsen(1) | 425,000 | N/A | ||||||||||||
(1) | Mr. Pladsen became an NEO in 2025. | |||||||||||||
NEO | 2025 Target Annual Cash Incentive % of Annual Base Salary | 2024 Target Annual Cash Incentive % of Annual Base Salary | |||||||||||||||
| Brian R. Gray | 120 | % | 115 | % | |||||||||||||
| Nathan W. Ring | 75 | % | 75 | % | |||||||||||||
| Trevor J. Hastings | 75 | % | 75 | % | |||||||||||||
| Karl A. Liepitz | 75 | % | 75 | % | |||||||||||||
Glenn R. Pladsen(1) | 75 | % | N/A | ||||||||||||||
(1) | Mr. Pladsen became an NEO in 2025. | ||||||||||||||||
Metric | Weighting | Definition/Notes | |||||||||
Adjusted EBITDA | 90% | Adjusted EBITDA is a non-GAAP financial measure and is defined in this context as net income before interest expense (net of interest income), income taxes and depreciation, depletion and amortization expense, adjusted to exclude unrealized gains (losses) on benefit plan investments, stock-based compensation expense, impact of selling acquired inventory after markup to fair value as part of acquisition accounting, transaction costs incurred for acquisitions, divestitures or other strategic transactions not included in the plan, asset sale gains (losses), multiemployer pension plan withdrawal liabilities and certain other non-operating items. | |||||||||
TRIR | 5% | Measure of incidents that result in an employee injury requiring medical treatment beyond first aid divided by total hours worked. | |||||||||
Workers Compensation Cost/Hour | 5% | Measure of injury severity including all medical costs incurred resulting from work-related injury or illness. | |||||||||
Executive Compensation | ||||||||
| Threshold | Target | Maximum | ||||||||||||||||||||||||||||||
| Performance Measure | Results | Payout % | Results | Payout % | Results | Payout % | ||||||||||||||||||||||||||
Adjusted EBITDA | $447.6 | million | 50 | % | $559.5 | million | 100 | % | $615.4 | million | 200 | % | ||||||||||||||||||||
TRIR | 2.25 | 50 | % | 1.96 | 100 | % | 1.76 | 200 | % | |||||||||||||||||||||||
Workers Compensation Cost/Hour | $0.33 | 50 | % | $0.29 | 100 | % | $0.26 | 200 | % | |||||||||||||||||||||||
| Performance Measure | Approved Results | Payout Percentage | % of Award Opportunity Payout | Weighted Award Opportunity Payout % | ||||||||||||||||
Adjusted EBITDA | $496.3 | million | 71.8 | % | 90 | % | 64.6 | % | ||||||||||||
TRIR | 1.79 | 185.0 | % | 5 | % | 9.3 | % | |||||||||||||
Workers Compensation Cost/Hour | 0.18 | 200.0 | % | 5 | % | 10.0 | % | |||||||||||||
Total | 100.0 | % | 83.9 | % | ||||||||||||||||
NEO | 2025 Target Annual Cash Incentive ($) | Weighted Award Opportunity Payout % | 2025 Actual Annual Cash Incentive ($) | ||||||||||||||
| Brian R. Gray | 1,200,000 | 83.9 | % | 1,006,253 | |||||||||||||
| Nathan W. Ring | 408,750 | 83.9 | % | 342,755 | |||||||||||||
| Trevor J. Hastings | 408,750 | 83.9 | % | 342,755 | |||||||||||||
| Karl A. Liepitz | 363,750 | 83.9 | % | 305,021 | |||||||||||||
| Glenn R. Pladsen | 318,750 | 83.9 | % | 267,286 | |||||||||||||
Executive Compensation | ||||||||
NEO | Base Salary ($) | Target Long-Term Incentive of Base Salary (%) | Target Long-Term Incentive Value ($) | Target Performance Stock Units (#) | Time-Based Restricted Stock Units (#) | ||||||||||||||||||
| Brian R. Gray | 1,000,000 | 375 | % | 3,750,000 | 23,396 | 12,599 | |||||||||||||||||
| Nathan W. Ring | 545,000 | 170 | % | 926,500 | 5,780 | 3,114 | |||||||||||||||||
| Trevor J. Hastings | 545,000 | 170 | % | 926,500 | 5,780 | 3,114 | |||||||||||||||||
| Karl A. Liepitz | 485,000 | 170 | % | 824,500 | 5,144 | 2,770 | |||||||||||||||||
| Glenn R. Pladsen | 425,000 | 125 | % | 531,250 | 3,314 | 1,786 | |||||||||||||||||
Executive Compensation | ||||||||
Threshold | Target | Maximum | ||||||||||||||||||
| Performance Measure | Results | Payout % | Results | Payout % | Results | Payout % | ||||||||||||||
Knife River’s relative TSR Percentile Rank | 25th | 50 | % | 50th | 100 | % | 75th or higher | 200 | % | |||||||||||
Adjusted EBITDA Margin growth | 50% of target | 50 | % | Target | 100 | % | 150% of target | 200 | % | |||||||||||
Plans | Brian R. Gray | Nathan W. Ring | Trevor J. Hastings | Karl A. Liepitz | Glenn R. Pladsen | ||||||||||||
Pension Plans | No | No | Yes | Yes | No | ||||||||||||
401(k) Retirement Plan | Yes | Yes | Yes | Yes | Yes | ||||||||||||
Supplemental Income Security Plan | No | No | Yes | No | No | ||||||||||||
Company Contribution to Deferred Compensation Plan | No | Yes | Yes | Yes | Yes | ||||||||||||
Executive Compensation | ||||||||
Executive Compensation | ||||||||
November 2024 Compensation Committee Meeting | •Received Market Analysis on executive compensation prepared by Meridian •Approved 2025 salary grade structure •Approved base salary, annual and long-term target incentive compensation opportunities for 2025 | ||||||||||
February 2025 Compensation Committee Meeting | •Approved annual cash incentive performance measures for 2025 •Approved grant of 2025-2027 long-term equity-based incentive awards including PSUs and RSUs | ||||||||||
March 2026 Compensation Committee Meeting | •Approved results and payment of 2025 annual cash incentives | ||||||||||
Executive Compensation | ||||||||
2025 Compensation Benchmarking Peer Group Companies(1) | |||||||||||
Allegion plc | Eagle Materials Inc. | Sterling Infrastructure, Inc. | |||||||||
Arcosa, Inc. | Gibraltar Industries, Inc. | Summit Materials, Inc. | |||||||||
Armstrong World Industries, Inc. | Granite Construction Incorporated | The AZEK Company Inc. | |||||||||
Compass Minerals International, Inc. | Martin Marietta Materials, Inc. | Vulcan Materials Company | |||||||||
Construction Partners, Inc. | Minerals Technologies Inc. | ||||||||||
Dycom Industries, Inc. | Simpson Manufacturing Co., Inc. | ||||||||||
(1) | Masonite International Corporation was removed from the 2025 compensation benchmarking peer group due to being acquired by Owens Corning. | ||||||||||
Name | Ownership Policy Multiple of Base Salary Within 5 Years | Actual Holdings as a Multiple of Base Salary | Ownership Requirement Must Be Met By: | |||||||||||
| Brian R. Gray | 6X | 5.1 | 06/01/2028 | |||||||||||
| Nathan W. Ring | 3X | 3.6 | 06/01/2028 | |||||||||||
| Trevor J. Hastings | 3X | 5.4 | 06/01/2028 | |||||||||||
| Karl A. Liepitz | 3X | 6.0 | 06/01/2028 | |||||||||||
| Glenn R. Pladsen | 2X | 3.7 | 06/01/2028 | |||||||||||
Executive Compensation | ||||||||
Executive Compensation | ||||||||
Executive Compensation | ||||||||
Executive Compensation | ||||||||
| Executive Compensation Tables | ||
| Name and Principal Position (a) | Year (b) | Salary ($) (c) | Bonus ($) (d) | Stock Awards ($) (e)(2) | Non-Equity Incentive Plan Compensation ($) (g) | Change in Pension Value and Nonqualified Deferred Compensation Earnings ($) (h)(3) | All Other Compensation ($) (i)(4) | Total ($) (j) | ||||||||||||||||||||||||
Brian R. Gray President and Chief Executive Officer (CEO) | 2025 | 1,000,000 | — | 3,785,841 | 1,006,253 | — | 28,774 | 5,820,868 | ||||||||||||||||||||||||
2024 | 880,000 | — | 4,119,361 | 1,825,838 | — | 116,374 | 6,941,573 | |||||||||||||||||||||||||
| 2023 | 658,334 | — | 2,620,279 | 1,644,521 | — | 68,348 | 4,991,482 | |||||||||||||||||||||||||
Nathan W. Ring Vice President and Chief Financial Officer (CFO) | 2025 | 545,000 | — | 935,426 | 342,755 | — | 83,274 | 1,906,455 | ||||||||||||||||||||||||
2024 | 525,000 | — | 1,114,035 | 710,399 | — | 80,874 | 2,430,308 | |||||||||||||||||||||||||
| 2023 | 394,408 | — | 661,819 | 624,096 | — | 58,829 | 1,739,152 | |||||||||||||||||||||||||
Trevor J. Hastings Vice President and Chief Operating Officer (COO) | 2025 | 545,000 | — | 935,426 | 342,755 | 61,030 | 94,274 | 1,978,485 | ||||||||||||||||||||||||
2024 | 525,000 | — | 1,114,035 | 710,399 | — | 94,674 | 2,444,108 | |||||||||||||||||||||||||
| 2023 | 466,904 | 100,000 | 768,210 | 752,381 | 58,062 | 82,322 | 2,227,879 | |||||||||||||||||||||||||
Karl A. Liepitz Vice President, Chief Legal Officer and Secretary (CLO) | 2025 | 485,000 | — | 832,371 | 305,021 | 3,358 | 84,251 | 1,710,001 | ||||||||||||||||||||||||
2024 | 475,000 | — | 1,007,980 | 642,742 | — | 82,736 | 2,208,458 | |||||||||||||||||||||||||
| 2023 | 470,000 | — | 867,663 | 756,879 | 8,525 | 82,428 | 2,185,495 | |||||||||||||||||||||||||
Glenn R. Pladsen (1) Vice President and Chief Excellence Officer (CXO) | 2025 | 425,000 | — | 536,385 | 267,286 | — | 71,158 | 1,299,829 | ||||||||||||||||||||||||
(1) | Mr. Pladsen was not an NEO for purposes of the Summary Compensation Table in 2024 or 2023. | |||||||||||||||||||||||||||||||
(2) | Amounts in this column represent the aggregate grant date fair value of RSUs and PSUs at target calculated in accordance with generally accepted accounting principles for stock-based compensation in Accounting Standards Codification Topic 718 and as described in Note 12 of our audited financial statements in our Annual Report on Form 10-K for the year ended December 31, 2025. This column was prepared assuming none of the awards were or will be forfeited. For 2025, the aggregate grant date fair value of the outstanding PSUs assume the highest level of payout would be as follows: | |||||||||||||||||||||||||||||||
| Name | Aggregate Grant Date Fair Value at Highest Payout ($) | ||||||||||
| Brian R. Gray | 6,398,589 | ||||||||||
| Nathan W. Ring | 1,580,908 | ||||||||||
| Trevor J. Hastings | 1,580,908 | ||||||||||
| Karl A. Liepitz | 1,406,827 | ||||||||||
| Glenn R. Pladsen | 906,476 | ||||||||||
Executive Compensation Tables | ||||||||
(3) | Amounts shown for 2025 represent the change in the actuarial present value for the named executive officers’ accumulated benefits under the pension plan and SISP. There were no above-market earnings on deferred compensation in 2025. | ||||||||||
Name | Accumulated Pension Change ($) | ||||||||||
| Brian R. Gray | — | ||||||||||
| Nathan W. Ring | — | ||||||||||
| Trevor J. Hastings | 61,030 | ||||||||||
| Karl A. Liepitz | 3,358 | ||||||||||
| Glenn R. Pladsen | — | ||||||||||
(4) | All Other Compensation for 2025 is comprised of: | ||||||||||||||||||||||
Name | 401(k) Plan ($)(a) | Nonqualified Deferred Compensation Plan ($)(b) | Life Insurance Premium ($) | Total ($) | |||||||||||||||||||
| Brian R. Gray | 28,000 | — | 774 | 28,774 | |||||||||||||||||||
| Nathan W. Ring | 28,000 | 54,500 | 774 | 83,274 | |||||||||||||||||||
| Trevor J. Hastings | 39,000 | 54,500 | 774 | 94,274 | |||||||||||||||||||
| Karl A. Liepitz | 35,000 | 48,500 | 751 | 84,251 | |||||||||||||||||||
| Glenn R. Pladsen | 28,000 | 42,500 | 658 | 71,158 | |||||||||||||||||||
(a) | Represents Knife River contributions to the 401(k) plan, which includes matching contributions and retirement contributions associated with the frozen pension plan as of December 31, 2009. | ||||||||||||||||||||||
(b) | Represents Knife River contribution amounts to the DCP, which are approved by the compensation committee. For further information, see the section entitled “Nonqualified Deferred Compensation for 2025.” | ||||||||||||||||||||||
Executive Compensation Tables | ||||||||
| Estimated Future Payouts Under Non-Equity Incentive Plan Awards | Estimated Future Payouts Under Equity Incentive Plan Awards | All Other Stock Awards: Number of Shares of Stock or Units (#) (i) | Grant Date Fair Value of Stock and Option Awards ($) (l) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Name (a) | Grant Date (b) | Threshold ($) (c) | Target ($) (d) | Maximum ($) (e) | Threshold (#) (f) | Target (#) (g) | Maximum (#) (h) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Brian R. Gray | 2/27/2025 | (1) | 600,000 | 1,200,000 | 2,400,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2/27/2025 | (2) | 11,698 | 23,396 | 46,792 | 2,612,748 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2/27/2025 | (3) | 12,599 | 1,173,093 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Nathan W. Ring | 2/27/2025 | (1) | 204,375 | 408,750 | 817,500 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2/27/2025 | (2) | 2,890 | 5,780 | 11,560 | 645,482 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2/27/2025 | (3) | 3,114 | 289,945 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trevor J. Hastings | 2/27/2025 | (1) | 204,375 | 408,750 | 817,500 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2/27/2025 | (2) | 2,890 | 5,780 | 11,560 | 645,482 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2/27/2025 | (3) | 3,114 | 289,945 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Karl A. Liepitz | 2/27/2025 | (1) | 181,875 | 363,750 | 727,500 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2/27/2025 | (2) | 2,572 | 5,144 | 10,288 | 574,456 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2/27/2025 | (3) | 2,770 | 257,915 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Glenn R. Pladsen | 2/27/2025 | (1) | 159,375 | 318,750 | 637,500 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2/27/2025 | (2) | 1,657 | 3,314 | 6,628 | 370,091 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2/27/2025 | (3) | 1,786 | 166,294 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
(1) | The amounts shown in this row represent the annual cash incentive that could have been earned in 2025, payable in 2026, granted pursuant to the Knife River Corporation Executive Incentive Compensation Plan. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
(2) | PSUs for the 2025-2027 performance period granted pursuant to the Knife River Corporation Long-Term Performance-Based Incentive Plan. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
(3) | RSUs for the 2025-2027 vesting period granted pursuant to the Knife River Corporation Long-Term Performance-Based Incentive Plan. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Executive Compensation Tables | ||||||||
| Name | Salary ($) | Bonus ($) | Total Compensation ($) | Salary and Bonus as a % of Total Compensation | |||||||||||||||||||||||||||||||||||||
| Brian R. Gray | 1,000,000 | — | 5,820,868 | 17.2 | % | ||||||||||||||||||||||||||||||||||||
| Nathan W. Ring | 545,000 | — | 1,906,455 | 28.6 | % | ||||||||||||||||||||||||||||||||||||
| Trevor J. Hastings | 545,000 | — | 1,978,485 | 27.5 | % | ||||||||||||||||||||||||||||||||||||
| Karl A. Liepitz | 485,000 | — | 1,710,001 | 28.4 | % | ||||||||||||||||||||||||||||||||||||
| Glenn R. Pladsen | 425,000 | — | 1,299,829 | 32.7 | % | ||||||||||||||||||||||||||||||||||||
Executive Compensation Tables | ||||||||
| Stock Awards | |||||||||||||||||||||||
| Name (a) | Number of Shares or Units of Stock That Have Not Vested (#) (g)(1) | Market Value of Shares or Units of Stock That Have Not Vested ($) (h)(2) | Equity Incentive Plan Awards: Number of Unearned Shares, Units or Other Rights That Have Not Vested (#) (i)(3) | Equity Incentive Plan Awards: Market or Payout Value of Unearned Shares, Units or Other Rights That Have Not Vested ($) (j)(4) | |||||||||||||||||||
| Brian R. Gray | 30,368 | 2,136,389 | 56,396 | 3,967,458 | |||||||||||||||||||
| Nathan W. Ring | 7,919 | 557,102 | 14,705 | 1,034,497 | |||||||||||||||||||
| Trevor J. Hastings | 7,919 | 557,102 | 14,705 | 1,034,497 | |||||||||||||||||||
| Karl A. Liepitz | 7,118 | 500,751 | 13,219 | 929,957 | |||||||||||||||||||
| Glenn R. Pladsen | 3,939 | 277,109 | 7,314 | 514,540 | |||||||||||||||||||
(1) | Below is a breakdown by year of outstanding RSUs. | ||||||||||||||||||||||
Name | 2024 Award to Vest on December 31, 2026 (#) | 2025 Award to Vest on December 31, 2027 (#) | Total (#) | |||||||||||
| Brian R. Gray | 17,769 | 12,599 | 30,368 | |||||||||||
| Nathan W. Ring | 4,805 | 3,114 | 7,919 | |||||||||||
| Trevor J. Hastings | 4,805 | 3,114 | 7,919 | |||||||||||
| Karl A. Liepitz | 4,348 | 2,770 | 7,118 | |||||||||||
| Glenn R. Pladsen | 2,153 | 1,786 | 3,939 | |||||||||||
(2) | Value based on the number of RSUs reflected in columns (g), as applicable, multiplied by $70.35, the year-end per share closing stock price for 2025. | |||||||||||||
(3) | PSUs that will vest on December 31, 2026 and 2027, are shown at the target level (100%) based on results for the first years of the performance period being between threshold and target. Below is a breakdown by year of outstanding PSUs | |||||||||||||
Executive Compensation Tables | ||||||||
| Stock Awards | ||||||||||||||
| Name (a) | Number of Shares Acquired on Vesting (#) (d)(1) | Value Realized on Vesting ($) (e)(2) | ||||||||||||
| Brian R. Gray | 62,923 | 4,426,633 | ||||||||||||
| Nathan W. Ring | 15,751 | 1,108,083 | ||||||||||||
| Trevor J. Hastings | 18,739 | 1,318,289 | ||||||||||||
| Karl A. Liepitz | 21,885 | 1,539,610 | ||||||||||||
| Glenn R. Pladsen | 8,490 | 597,272 | ||||||||||||
(1) | Reflects RSUs which vested on December 31, 2025, and were settled on February 12, 2026. | |||||||||||||
(2) | Reflects the value of RSUs based on the closing stock price of $70.35 per share upon the vesting of stock on December 31, 2025. | |||||||||||||
| Name (a) | Plan Name (b)(1) | Number of Years Credited Service (#) (c)(2) | Present Value of Accumulated Benefit ($) (d) | ||||||||||||||
| Brian R. Gray | Pension | n/a | — | ||||||||||||||
| SISP | n/a | — | |||||||||||||||
| Nathan W. Ring | Pension | n/a | — | ||||||||||||||
| SISP | n/a | — | |||||||||||||||
| Trevor J. Hastings | Pension | 13 | 297,648 | ||||||||||||||
| SISP | 10 | 381,075 | |||||||||||||||
| Karl A. Liepitz | Pension | 6 | 35,437 | ||||||||||||||
| SISP | n/a | — | |||||||||||||||
| Glenn R. Pladsen | Pension | n/a | — | ||||||||||||||
| SISP | n/a | — | |||||||||||||||
(1) | Messrs. Gray, Ring and Pladsen do not participate in the pension plan or SISP. Mr. Hastings participates in the KRC pension plan and the SISP. Mr. Liepitz is a vested term participant in the MDU Resources pension plan. | ||||||||||||||||
(2) | Years of credited service related to the pension plan reflects the years of participation in the plan as of December 31, 2009, when the pension plan was frozen. Years of credited service related to the SISP reflects the years toward full vesting of the benefit which is 10 years. | ||||||||||||||||
Executive Compensation Tables | ||||||||
Executive Compensation Tables | ||||||||
Executive Compensation Tables | ||||||||
| Name (a) | Executive Contributions in Last FY ($) (b)(1) | Registrant Contributions in Last FY ($) (c)(2) | Aggregate Earnings in Last FY ($) (d) | Aggregate Withdrawals/ Distributions ($) (e) | Aggregate Balance at Last FYE ($) (f) | |||||||||||||||
| Brian R. Gray | — | — | 93,395 | — | 676,294 | |||||||||||||||
| Nathan W. Ring | — | 54,500 | 56,108 | — | 415,904 | |||||||||||||||
| Trevor J. Hastings | — | 54,500 | 58,397 | — | 471,182 | |||||||||||||||
| Karl A. Liepitz | — | 48,500 | 52,010 | — | 382,669 | |||||||||||||||
| Glenn R. Pladsen | 216,502 | 42,500 | 207,559 | — | 1,768,651 | |||||||||||||||
(1) | These amounts are part of the annual incentives shown in the Summary Compensation Table. | |||||||||||||||||||
(2) | Represents contributions made in 2025 by the company under the DCP. These amounts are included in all Other Compensation shown in the Summary Compensation Table. | |||||||||||||||||||
Executive Compensation Tables | ||||||||
Executive Compensation Tables | ||||||||
Executive Compensation Tables | ||||||||
| Age When Disabled | Benefits Payable | ||||
| Prior to age 60 | To age 65 | ||||
| Ages 60 to 64 | 60 months | ||||
| Ages 65-67 | To age 70 | ||||
| Age 68 and over | 24 months | ||||
Executive Compensation Tables | ||||||||
| Executive Benefits and Payments upon Termination or Change in Control | Voluntary or Not for Cause Termination ($) | Death ($) | Disability ($) | Change in Control (With Termination) ($) | Change in Control (Without Termination) ($) | |||||||||||||||
| Brian R. Gray | ||||||||||||||||||||
| Compensation: | ||||||||||||||||||||
PSUs | 1,547,700 | 2,096,336 | 2,096,336 | 3,967,459 | 2,321,550 | |||||||||||||||
RSUs | 833,366 | 1,128,813 | 1,128,813 | 2,136,389 | 1,250,049 | |||||||||||||||
Cash Payments under CIC Plan | — | — | — | 6,866,268 | — | |||||||||||||||
| Benefits and Perquisites: | ||||||||||||||||||||
| Disability Benefits | — | — | 448,434 | — | — | |||||||||||||||
| 2,381,066 | 3,225,149 | 3,673,583 | 12,970,115 | 3,571,599 | ||||||||||||||||
| Nathan W. Ring | ||||||||||||||||||||
| Compensation: | ||||||||||||||||||||
PSUs | — | 135,541 | 135,541 | 1,034,497 | 627,874 | |||||||||||||||
RSUs | — | 298,378 | 298,378 | 557,102 | 338,032 | |||||||||||||||
Cash Payments under CIC Plan | — | — | — | 2,097,994 | — | |||||||||||||||
| Benefits and Perquisites: | ||||||||||||||||||||
| Disability Benefits | — | — | 617,686 | — | — | |||||||||||||||
| — | 433,919 | 1,051,605 | 3,689,593 | 965,906 | ||||||||||||||||
| Trevor J. Hastings | ||||||||||||||||||||
| Compensation: | ||||||||||||||||||||
PSUs | — | 135,541 | 135,541 | 1,034,497 | 627,874 | |||||||||||||||
RSUs | — | 298,378 | 298,378 | 557,102 | 338,032 | |||||||||||||||
| Cash Payments under CIC Plan | — | — | — | 2,050,656 | — | |||||||||||||||
| Benefits and Perquisites: | ||||||||||||||||||||
| Disability Benefits | — | — | 377,751 | — | — | |||||||||||||||
| — | 433,919 | 811,670 | 3,642,255 | 965,906 | ||||||||||||||||
| Karl A. Liepitz | ||||||||||||||||||||
| Compensation: | ||||||||||||||||||||
PSUs | — | 120,627 | 120,627 | 929,957 | 568,076 | |||||||||||||||
RSUs | — | 268,878 | 268,878 | 500,751 | 305,882 | |||||||||||||||
| Cash Payments under CIC Plan | — | — | — | 1,874,100 | — | |||||||||||||||
| Benefits and Perquisites: | ||||||||||||||||||||
| Disability Benefits | — | — | 670,954 | — | — | |||||||||||||||
| — | 389,505 | 1,060,459 | 3,304,807 | 873,958 | ||||||||||||||||
| Glenn R. Pladsen | ||||||||||||||||||||
| Compensation: | ||||||||||||||||||||
| PSUs | 187,600 | 265,313 | 265,313 | 514,540 | 281,400 | |||||||||||||||
| RSUs | 100,976 | 142,857 | 142,857 | 277,109 | 151,464 | |||||||||||||||
| Cash Payments under CIC Plan | — | — | — | 1,609,438 | — | |||||||||||||||
| Benefits and Perquisites: | ||||||||||||||||||||
| Disability Benefits | — | — | 296,698 | — | — | |||||||||||||||
| 288,576 | 408,171 | 704,869 | 2,401,087 | 432,864 | ||||||||||||||||
Executive Compensation Tables | ||||||||
Executive Compensation Tables | ||||||||
Summary Compensation Table Total for Principal Executive Officer (PEO) ($)(2) | Compensation Actually Paid to PEO ($)(3) | Average Summary Compensation Table Total for Non-PEO Named Executive Officers ($)(4) | Average Compensation Actually Paid to Non-PEO Named Executive Officers ($)(5) | Value of initial fixed $100 investment based on: | Net Income (in thousands) ($) | Company Selected Measure - Adjusted EBITDA (in thousands) ($)(8) | |||||||||||||||||||||||
Year(1) | Total Stockholder Return ($)(6) | Peer Group Total Stockholder Return ($)(7) | |||||||||||||||||||||||||||
2025 | 5,820,868 | (242,494) | 1,723,693 | 291,020 | 200.89 | 122.23 | 157,074 | 496,307 | |||||||||||||||||||||
| 2024 | 6,941,573 | 11,332,653 | 2,125,439 | 3,513,404 | 290.23 | 117.14 | 201,678 | 469,502 | |||||||||||||||||||||
| 2023 | 4,991,482 | 6,535,447 | 1,835,172 | 2,665,370 | 188.98 | 120.11 | 182,872 | 432,421 | |||||||||||||||||||||
2025 | ||||||||
| SCT Total Compensation for the PEO | 5,820,868 | |||||||
less: Reported Value of Stock Awards in the SCT | 3,785,841 | |||||||
plus: Stock Award Adjustments(a) | (2,277,521) | |||||||
| less: Change in Actuarial Present Value of Defined Benefit and Pension Plans as Reported in the SCT | — | |||||||
| plus: Aggregate Service Cost and Prior Service Costs on Defined Benefit and Pension Plans | — | |||||||
| CAP for the PEO | (242,494) | |||||||
| Year | Year-end Fair Value of Equity Awards Granted in the Year which are Unvested | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years that are Unvested | Fair Value as of Vesting Date of Equity Awards Granted and Vested in the Year | Year-over-Year Change in Fair Value of Equity Award Granted in Prior Years that Vested in the Year | Prior Year-end Fair Value of Equity Awards that Failed to Meet Vesting Conditions in the Year | Value of Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Fair Value or Total Compensation | Total Equity Award Adjustments | ||||||||||||||||
2025 | 2,299,107 | (2,607,767) | — | (1,968,861) | — | — | (2,277,521) | ||||||||||||||||
Executive Compensation Tables | ||||||||
2025 | ||||||||
| Average of SCT Total Compensation for Non-PEO Named Executive Officers | 1,723,693 | |||||||
less: Reported Value of Stock Awards in the SCT | 809,902 | |||||||
plus: Stock Award Adjustments(a) | (606,674) | |||||||
| less: Change in Actuarial Present Value of Defined Benefit and Pension Plans as Reported in the SCT | 16,097 | |||||||
| plus: Aggregate Service Cost and Prior Service Costs on Defined Benefit and Pension Plans | — | |||||||
| Average CAP for the Non-PEO Named Executive Officers | 291,020 | |||||||
| Year | Year-end Fair Value of Equity Awards Granted in the Year which are Unvested | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years that are Unvested | Fair Value as of Vesting Date of Equity Awards Granted and Vested in the Year | Year-over-Year Change in Fair Value of Equity Award Granted in Prior Years that Vested in the Year | Prior Year-end Fair Value of Equity Awards that Failed to Meet Vesting Conditions in the Year | Value of Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Fair Value or Total Compensation | Total Equity Award Adjustments | ||||||||||||||||
2025 | 491,860 | (591,128) | — | (507,406) | — | — | (606,674) | ||||||||||||||||
Performance Metrics Most Closely Linked to CAP for 2025 | ||
Adjusted EBITDA | ||
| Adjusted EBITDA margin growth | ||
Relative Total Stockholder Return | ||
Executive Compensation Tables | ||||||||


Executive Compensation Tables | ||||||||

| Audit Matters | |||||
The board of directors recommends a vote “FOR” the ratification of the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for fiscal year 2026. | ![]() | FOR | ||||||||||||||||||
Audit Matters | ||||||||
2025 | 2024 | ||||||||||
Audit Fees (1)(2) | $2,925,602 | $2,658,990 | |||||||||
Audit-Related Fees | — | — | |||||||||
Tax Fees | — | — | |||||||||
| All Other Fees | — | — | |||||||||
Total Fees (2) | $2,925,602 | $2,658,990 | |||||||||
Ratio of Tax and All Other Fees to Audit and Audit-Related Fees | 0 | % | 0 | % | |||||||
(1) | Audit fees for 2024 and 2025 consisted of fees for the annual audit of our consolidated financial statements, annual audit of our internal controls over financial reporting, reviews of quarterly financial statements, and other filings with the SEC. | ||||||||||
(2) | Total fees reported above include out-of-pocket expenses related to the services provided of $134,707 for 2025 and $265,195 for 2024. | ||||||||||
Audit Matters | ||||||||
Audit Matters | ||||||||
Patricia L. Moss, Chair | ||
German Carmona Alvarez | ||
Patricia Chiodo | ||
William J. Sandbrook | ||
Information About the Annual Meeting | ||
| Who Can Vote? | Stockholders of record at the close of business on March 27, 2026, are entitled to vote each share they owned on that date on each matter presented at the annual meeting and any adjournment(s) thereof. As of March 27, 2026, we had 56,753,855 shares of common stock outstanding, each entitled to one vote. To attend and participate in the annual meeting, you will need the 16-digit control number included in your Notice or your Proxy Card, or on the instructions that accompanied your proxy materials. If your shares are held in “street name,” you should contact your bank, broker, or other holder of record to obtain your 16-digit control number or otherwise vote through the bank, broker, or other holder of record. Only stockholders with a valid 16-digit control number will be able to attend the annual meeting, vote, and ask questions. The annual meeting webcast will begin promptly at 10:00 a.m. Central Daylight Saving Time. We encourage you to access the annual meeting prior to the start time. Online check-in will begin at 9:45 a.m. Central Daylight Saving Time, and you should allow ample time for the check-in procedures. | |||||||||||||
| Distribution of Our Proxy Materials Using Notice and Access | We distributed proxy materials to certain of our stockholders via the Internet under the SEC’s “Notice and Access” rules to reduce our costs and decrease the environmental impact of our proxy materials. Using this method of distribution, on or about April 6, 2026, we mailed the Notice that contains basic information about our annual meeting and instructions on how to view all proxy materials, and vote electronically, on the Internet. If you received the Notice and prefer to receive a paper copy of the proxy materials, follow the instructions in the Notice for making this request and the materials will be sent promptly to you via your preferred method. | |||||||||||||
Information about the Annual Meeting | ||||||||
| How to Vote | You are encouraged to vote in advance of the annual meeting using one of the following voting methods, even if you are planning to attend the annual meeting online. | |||||||||||||
Registered Stockholders: Stockholders of record who hold their shares directly with our stock registrar can vote any one of four ways: | ||||||||||||||
![]() | By Internet: Go to the website shown on the Notice or Proxy Card, if you received one, and follow the instructions. | |||||||||||||
![]() | By Telephone: Call the telephone number shown on the Notice or Proxy Card, if you received one, and follow the instructions given by the voice prompts. | |||||||||||||
Voting via the Internet or by telephone authorizes the named proxies to vote your shares in the same manner as if you marked, signed, dated, and returned the Proxy Card by mail. Your voting instructions may be transmitted up until 11:59 p.m. Eastern Time on May 19, 2026. | ||||||||||||||
![]() | By Mail: If you received a paper copy of the Proxy Statement, Annual Report, and Proxy Card, mark, sign, date, and return the Proxy Card in the postage-paid envelope provided. | |||||||||||||
![]() | During the Annual Meeting: Attend the annual meeting online and follow the instructions posted at www.virtualshareholdermeeting.com/KNF2026. Even if you plan to attend the annual meeting online, we recommend that you also vote by Internet, by telephone, or by mail so that your vote will be counted if you later decide not to attend. | |||||||||||||
Beneficial Stockholders: Stockholders whose shares are held beneficially in the name of a bank, broker, or other holder of record (sometimes referred to as holding shares “in street name”) and who do not have a control number will receive voting instructions from said bank, broker, or other holder of record. If you are a beneficial owner who does not have a control number, you will still be able to attend the annual meeting as a “guest” and listen to the proceedings, but you will not be able to vote, ask questions, or otherwise participate. Even if you plan to attend the annual meeting online, we recommend that you also vote by Internet, by telephone, or by mail so that your vote will be counted if you later decide not to attend. | ||||||||||||||
See discussion below regarding the Knife River Corporation 401(k) Plan for voting instructions for shares held under our 401(k) plan. | ||||||||||||||
Information about the Annual Meeting | ||||||||
| How to Attend and Vote at the Annual Meeting | The annual meeting will be held entirely online live via audio webcast. In structuring our virtual annual meeting, our goal is to enhance stockholder participation. We have designed the virtual annual meeting to provide stockholders with substantially the same opportunities to participate as if the annual meeting were held in person, and we believe the virtual annual meeting accomplishes this goal. We aim to provide a consistent experience to all stockholders regardless of their geographic location. Any stockholder can attend the annual meeting live online at www.virtualshareholdermeeting.com/KNF2026. If you were a stockholder as of the record date for the annual meeting and you have your 16-digit control number included in your Notice, on your Proxy Card, or on the instructions that accompanied your proxy materials, you can vote at the annual meeting. If you are not a stockholder or do not have a control number, you may still access the annual meeting as a guest, but you will not be able to participate. | |||||||||||||
| A summary of the information you need to attend the annual meeting online is provided below: | ||||||||||||||
| • | To attend and participate in the annual meeting, you will need the 16-digit control number included in your Notice, on your Proxy Card or on the instructions that accompanied your proxy materials. | |||||||||||||
| • | The annual meeting webcast will begin promptly at 10:00 a.m. Central Daylight Saving Time. We encourage you to access the annual meeting prior to the start time. Online check-in will begin at 9:45 a.m. Central Daylight Saving Time, and you should allow ample time for the check-in procedures. | |||||||||||||
| • | The virtual meeting platform is fully supported across browsers (Chrome, Firefox, and Safari) and devices (desktops, laptops, tablets, and cell phones) running the most updated version of applicable software and plugins. Participants should ensure that they have a strong Internet connection wherever they intend to participate in the annual meeting. Participants should also give themselves plenty of time to log in and ensure that they can hear streaming audio prior to the start of the annual meeting. | |||||||||||||
| • | Instructions on how to attend and participate via the Internet are posted at www.virtualshareholdermeeting.com/KNF2026. | |||||||||||||
| • | Assistance with questions regarding how to attend and participate via the Internet will be provided at www.virtualshareholdermeeting.com/KNF2026 on the day of the annual meeting. | |||||||||||||
| • | If you want to submit your question during the annual meeting, log into the virtual meeting platform at www.virtualshareholdermeeting.com/KNF2026, type your question into the “Ask a Question” field, and click “Submit.” | |||||||||||||
| • | Questions pertinent to annual meeting matters will be answered during the annual meeting, subject to time constraints. Questions regarding personnel matters, including those related to employment, product issues, or suggestions for product innovations, are not pertinent to annual meeting matters and therefore will not be answered. If we receive substantially similar questions, we may group such questions together and provide a single response to avoid repetition. We have designed the format of the virtual annual meeting to ensure that our stockholders are afforded the same rights and opportunities to participate as they would have at an in-person meeting. Any questions pertinent to annual meeting matters that cannot be answered during the annual meeting due to time constraints will be posted online and answered at the “Investors” section of our website at www.kniferiver.com. The questions and answers will be available as soon as practical after the annual meeting and will remain available until one week after posting. | |||||||||||||
| Technical Difficulties | We will have technicians ready to assist you with any technical difficulties you may have accessing the virtual annual meeting website. If you encounter any difficulties accessing the virtual annual meeting website during the check-in or annual meeting time, please call the technical support number that will be posted on the annual meeting login page. | |||||||||||||
Information about the Annual Meeting | ||||||||
| Revoking Your Proxy or Changing Your Vote | You may change your vote at any time before the proxy is exercised. | |||||||||||||
| • | If you voted by mail: you may revoke your proxy by executing and delivering a timely and valid later dated proxy, by attending the annual meeting online and voting at the annual meeting by following the instructions at www.virtualshareholdermeeting.com/KNF2026, or by giving written notice of revocation to the corporate secretary. | |||||||||||||
| • | If you voted via the Internet or by telephone: you may change your vote with a timely and valid later Internet or telephone vote, as the case may be, or by attending the annual meeting online and voting at the annual meeting by following the instructions at www.virtualshareholdermeeting.com/KNF2026. | |||||||||||||
| • | Attendance at the annual meeting online will not have the effect of revoking a proxy unless (1) you give proper written notice of revocation to the corporate secretary before the proxy is exercised, or (2) you vote at the annual meeting by following the instructions at www.virtualshareholdermeeting.com/KNF2026. | |||||||||||||
| Discretionary Voting Authority | If you complete and submit your proxy voting instructions, the individuals named as proxies will follow your instructions. If you are a stockholder of record and you submit proxy voting instructions but do not direct how to vote on each item, the individuals named as proxies will vote as the board recommends on each proposal. The individuals named as proxies will vote on any other matters properly presented at the annual meeting in accordance with their discretion. Our bylaws set forth requirements for advance notice of any nominations or agenda items to be brought up for voting at the annual meeting, and we have not received timely notice of any such matters, other than the items from the board described in this Proxy Statement. | |||||||||||||
Information about the Annual Meeting | ||||||||
| Voting Standards | A majority of outstanding shares of stock entitled to vote in the election of directors must be present online or represented by proxy to hold the annual meeting. Abstentions and broker non-votes are counted for purposes of determining whether a quorum is present at the annual meeting. | |||||||||||||||||||||||||
If you are a beneficial holder and do not provide specific voting instruction to your broker, the organization that holds your shares will not be authorized to vote your shares, which would result in broker non-votes, on proposals other than the ratification of the selection of our independent registered public accounting firm for 2026. | ||||||||||||||||||||||||||
The following chart describes the proposals to be considered at the annual meeting, the vote required to elect directors and to adopt each other proposal, the manner in which votes will be counted and the board’s recommendation: | ||||||||||||||||||||||||||
| Item No. | Proposal | Voting Options | Vote Required to Adopt the Proposal | Effect of Abstentions | Effect of “Broker Non-Votes” | Board Vote Recommendation | ||||||||||||||||||||
| 1 | Election of Two Class III Directors | For, against, or abstain on each nominee | A nominee for director will be elected if the number of shares voted “for” such nominee’s election exceeds 50% of the number of votes cast with respect to that nominee’s election | No effect | No effect | FOR Each Nominee | ||||||||||||||||||||
| 2 | Advisory Vote to Approve the Compensation Paid to the Company’s Named Executive Officers | For, against, or abstain | The affirmative vote of a majority of the shares of common stock present online or represented by proxy at the annual meeting and entitled to vote thereon | Same effect as votes against | No effect | FOR | ||||||||||||||||||||
| 3 | Ratification of the Appointment of Deloitte & Touche LLP as the Company’s Independent Registered Public Accounting Firm for 2026 | For, against, or abstain | The affirmative vote of a majority of the shares of common stock present online or represented by proxy at the annual meeting and entitled to vote thereon | Same effect as votes against | Brokers have discretion to vote | FOR | ||||||||||||||||||||
| Proxy Solicitation | The board is furnishing proxy materials to solicit proxies for use at the annual meeting and any adjournment(s) thereof. Proxies are solicited principally by mail, but directors, officers, and employees of Knife River or its subsidiaries may solicit proxies personally, by telephone, or by electronic media, without compensation other than their regular compensation. D.F. King & Co, Inc. additionally will solicit proxies for approximately $10,000 plus out-of-pocket expenses. We will pay the cost of soliciting proxies and will reimburse brokers and others for forwarding proxy materials to stockholders. | |||||||
Information about the Annual Meeting | ||||||||
Householding of Proxy Materials | In accordance with a procedure called “householding,” which has been approved by the SEC, we are sending only one Notice or one Annual Report and Proxy Statement, as applicable, to multiple stockholders who share a single address unless we received instructions to the contrary from any stockholder at that address. This practice is designed to reduce our printing and postage costs. However, if a stockholder of record wishes to receive a separate Notice or Annual Report and Proxy Statement, as applicable, in the future, he or she may contact the Office of the Treasurer at Knife River Corporation, 1150 West Century Avenue, P.O. Box 5568, Bismarck, North Dakota, 58506-5568, Telephone Number: (701) 530-1400. Upon receipt of such request, we will promptly deliver a separate Notice or Annual Report and Proxy Statement, as applicable. Eligible stockholders of record who receive multiple copies of our Notice or Annual Report and Proxy Statement, as applicable, can request householding by contacting us in the same manner. Stockholders who own shares through a bank, broker, or other nominee can request householding by contacting such bank, broker, or other nominee. | |||||||
Knife River Corporation 401(k) Plan | This Proxy Statement is being used to solicit voting instructions from participants in the Knife River Corporation 401(k) plan with respect to shares of our common stock that are held by the trustee of the plan for the benefit of plan participants. If you are a plan participant and also own other shares as a registered stockholder or beneficial owner, you will separately receive a Notice or proxy materials to vote those other shares you hold outside of the Knife River Corporation 401(k) plan. If you are a plan participant, you must instruct the plan trustee to vote your shares by utilizing one of the methods described on the voting instruction form that you receive in connection with shares held in the plan. If you do not give voting instructions, the trustee generally will vote the shares allocated to your personal account in accordance with the recommendations of the board. Your voting instructions may be transmitted up until 11:59 p.m. Eastern Time on May 15, 2026. | |||||||
Why Hold a Virtual Annual Meeting | After carefully considering the format of the annual meeting, the board concluded to hold the annual meeting exclusively online live via audio webcast. The board believes the virtual annual meeting offers the same participation opportunities as an in-person annual meeting. In addition, the board believes the virtual annual meeting format allows us to provide consistent opportunities for engagement to all stockholders, regardless of their geographic location. Therefore, we plan to hold the annual meeting by means of remote communications only. | |||||||
Tabulation of Votes | A representative of Broadridge will tabulate our votes and a representative of The Carideo Group, Inc., our inspector of elections, will certify the votes. | |||||||
Annual Meeting Results | We will announce preliminary voting results at the annual meeting and will publish final results in a Current Report on Form 8-K to be filed with the SEC within four business days following the annual meeting. | |||||||
Information about the Annual Meeting | ||||||||
Stockholder Proposals, Director Nominations, and Other Items of Business for 2027 Annual Meeting | Stockholder Proposals for Inclusion in Next Year’s Proxy Statement: To be included in the proxy materials for our 2027 annual meeting, a stockholder proposal must be received by the corporate secretary no later than December 7, 2026, unless the date of the 2027 annual meeting is more than 30 days before or after May 20, 2027, in which case the proposal must be received at a reasonable time before we begin to print and mail our proxy materials. The proposal must also comply with all applicable requirements of Rule 14a-8 under the Exchange Act. | |||||||
Director Nominations From Stockholders for Inclusion in Next Year’s Proxy Statement: If a stockholder or group of stockholders wishes to nominate one or more director candidates to be included in our proxy statement for the 2027 annual meeting through our proxy access bylaw provision, we must receive proper written notice of the nomination not later than 120 days or earlier than 150 days before the anniversary date that the definitive proxy statement was first released to stockholders in connection with the annual meeting, or between November 7, 2026 and December 7, 2026. The requirements of such notice can be found in our bylaws, a copy of which is on our website, at https://investors.kniferiver.com/governance/governance-documents/. In addition, Rule 14a-19 under the Exchange Act requires additional information be included in director nomination notices, including a statement that the stockholder intends to solicit the holders of shares representing at least 67% of the voting power of shares entitled to vote on the election of directors. If any change occurs with respect to such stockholder’s intent to solicit the holders of shares representing at least 67% of such voting power, such stockholder must notify us promptly. | ||||||||
Director Nominations and Other Stockholder Proposals Raised From the Floor at the 2027 Annual Meeting of Stockholders: Under our bylaws, if a stockholder intends to nominate a person as a director, or present other items of business at an annual meeting, the stockholder must provide written notice of the director nomination or stockholder proposal not earlier than the 120th day prior to the first anniversary of the preceding year’s annual meeting of stockholders and not later than the close of business of the 90th day prior to the first anniversary of the preceding year’s annual meeting of stockholders. Notice of director nominations or stockholder proposals for our 2027 annual meeting must be received between January 20, 2027 and February 19, 2027, and meet all the requirements and contain all the information, including the completed questionnaire for director nominations, provided by our bylaws. The requirements for such notice can be found in our bylaws, a copy of which is on our website, at https:// investors.kniferiver.com/governance/governance-documents/. In addition, Rule 14a-19 under the Exchange Act requires additional information be included in director nomination notices, including a statement that the stockholder intends to solicit the holders of shares representing at least 67% of the voting power of shares entitled to vote on the election of directors. If any change occurs with respect to such stockholder’s intent to solicit the holders of shares representing at least 67% of such voting power, such stockholder must notify us promptly. | ||||||||
| By order of the Board of Directors, | |||||
![]() | |||||
| Karl A. Liepitz | |||||
Vice President, Chief Legal Officer and Secretary | |||||
April 6, 2026 | |||||

