The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

  UNITED STATES SECURITIES AND EXCHANGE COMMISSION OMB APPROVAL
 Washington, D.C. 20549
FORM 13F
OMB Number:   3235-0006
Estimated average burden
hours per response:       23.8


FORM 13F COVER PAGE


Report for the Calendar Year or Quarter Ended:
03-31-2025
 
Check here if Amendment:      Amendment Number:
 
This Amendment (Check only one.):    is a restatement.
     adds new holdings entries.

Institutional Investment Manager Filing this Report:

Name:GAM Holding AG 
Address:Hardstrasse 201 
 Zurich V8 8037 

Form 13F File Number:  028-13808 
CRD Number (if applicable):   
SEC File Number (if applicable):   


The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:

Name:David Kemp 
Title:Group Head Legal & Compliance 
Phone: 44-0-20-7917-2404 

Signature, Place, and Date of Signing:

/s/ David Kemp London,  UNITED KINGDOM 04-22-2025 
[Signature][City, State][Date]

Do you wish to provide information pursuant to Special Instruction 5?        Yes      X  No

Report Type (Check only one.):

X  13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)

     13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)

     13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)


Form 13F Summary Page

Report Summary:

Number of Other Included Managers:
Form 13F Information table Entry Total:217 
Form 13F Information table Value Total:1,289,390,579 
 (round to nearest dollar)

List of Other Included Managers:

Provide a numbered list of the name(s) and Form 13F number(s) of all institutional investement managers with respect to which this report is filed, other than the manager filing this report.

   No.NameForm 13F File NumberCRD No. (if applicable)SEC File No. (if applicable)CIK
GAM INTERNATIONAL MANAGEMENT LTD  000110670 801-22307 0001229918 
GAM Investment Management (Switzerland) AG     

FORM 13F INFORMATION TABLE

COLUMN 1COLUMN 2COLUMN 3COLUMN 4COLUMN 5COLUMN 6COLUMN 7COLUMN 8
NAME OF ISSUER TITLE OF CLASS CUSIPFIGI VALUE
(round to nearest dollar)
SHRS OR
PRN AMT
SH /
PRN
PUT /
CALL
INVESTMENT
DISCRETION
OTHER
MANAGER
VOTING AUTHORITY
SOLESHAREDNONE
ABBOTT LABSCOM002824100-1,352,10110,193SH-SOLE110,19300
ABBVIE INCCOM00287Y109-1,429,1366,821SH-SOLE16,82100
ACCENTURE PLC IRELANDSHS CLASS AG1151C101-1,487,8074,768SH-SOLE14,76800
ADOBE INCCOM00724F101-6,671,12117,394SH-SOLE217,39400
ADOBE INCCOM00724F101-1,223,8443,191SH-SOLE13,19100
AFLAC INCCOM001055102-4,508,86640,551SH-SOLE240,55100
ALPHABET INCCAP STK CL A02079K305-21,912,952141,703SH-SOLE1141,70300
ALPHABET INCCAP STK CL A02079K305-27,713,498179,213SH-SOLE2179,21300
ALPHABET INCCAP STK CL C02079K107-3,802,01324,336SH-SOLE124,33600
AMAZON COM INCCOM023135106-12,935,77767,990SH-SOLE267,99000
AMAZON COM INCCOM023135106-30,375,580159,653SH-SOLE1159,65300
AMER SPORTS INCCOM SHSG0260P102-12,108,690453,000SH-SOLE1453,00000
AMERICAN EXPRESS COCOM025816109-1,308,1214,862SH-SOLE14,86200
AMETEK INCCOM031100100-5,632,76532,722SH-SOLE232,72200
AMPHENOL CORP NEWCL A032095101-5,131,17178,231SH-SOLE278,23100
AMPHENOL CORP NEWCL A032095101-1,285,36719,597SH-SOLE119,59700
ANALOG DEVICES INCCOM032654105-2,876,01614,261SH-SOLE214,26100
APPLE INCCOM037833100-28,919,549130,192SH-SOLE1130,19200
APPLE INCCOM037833100-17,570,70579,101SH-SOLE279,10100
APPLIED MATLS INCCOM038222105-3,473,59223,936SH-SOLE223,93600
APPLIED MATLS INCCOM038222105-4,160,73628,671SH-SOLE128,67100
APPLOVIN CORPCOM CL A03831W108-1,376,5195,195SH-SOLE25,19500
APTIV PLCCOM SHSG3265R107-668,66111,238SH-SOLE211,23800
ARM HOLDINGS PLCSPONSORED ADS042068205-2,308,69321,619SH-SOLE221,61900
ATOUR LIFESTYLE HLDGS LTDSPONSORED ADS04965M106-2,608,20092,000SH-SOLE292,00000
AUTODESK INCCOM052769106-3,460,99613,220SH-SOLE213,22000
AUTOLIV INCCOM052800109-1,176,03113,296SH-SOLE113,29600
AUTOMATIC DATA PROCESSING INCOM053015103-5,904,67319,326SH-SOLE219,32600
BERKSHIRE HATHAWAY INC DELCL B NEW084670702-3,932,0387,383SH-SOLE27,38300
BERKSHIRE HATHAWAY INC DELCL B NEW084670702-2,906,2895,457SH-SOLE15,45700
BOOKING HOLDINGS INCCOM09857L108-10,913,7702,369SH-SOLE22,36900
BOOZ ALLEN HAMILTON HLDG CORCL A099502106-1,965,47718,794SH-SOLE218,79400
BORGWARNER INCCOM099724106-1,183,93341,324SH-SOLE141,32400
BOSTON SCIENTIFIC CORPCOM101137107-2,802,04327,776SH-SOLE227,77600
BRISTOL-MYERS SQUIBB COCOM110122108-11,251,984184,489SH-SOLE2184,48900
BROADCOM INCCOM11135F101-5,063,92030,245SH-SOLE230,24500
BROADCOM INCCOM11135F101-13,148,61378,532SH-SOLE178,53200
BROWN & BROWN INCCOM115236101-1,430,22711,497SH-SOLE111,49700
BWX TECHNOLOGIES INCCOM05605H100-2,295,68423,271SH-SOLE223,27100
CADENCE DESIGN SYSTEM INCCOM127387108-6,151,73424,188SH-SOLE224,18800
CAPRI HOLDINGS LIMITEDSHSG1890L107-6,785,147343,900SH-SOLE1343,90000
CATERPILLAR INCCOM149123101-3,733,66611,321SH-SOLE211,32100
CATERPILLAR INCCOM149123101-1,157,9283,511SH-SOLE13,51100
CBOE GLOBAL MKTS INCCOM12503M108-1,541,0356,810SH-SOLE26,81000
CF INDS HLDGS INCCOM125269100-743,9109,519SH-SOLE29,51900
CHEVRON CORP NEWCOM166764100-1,872,47711,193SH-SOLE111,19300
CHURCH & DWIGHT CO INCCOM171340102-1,249,30111,348SH-SOLE111,34800
CITIZENS FINL GROUP INCCOM174610105-1,280,76331,261SH-SOLE131,26100
COCA COLA COCOM191216100-4,737,37766,146SH-SOLE266,14600
COCA COLA COCOM191216100-1,736,49924,246SH-SOLE124,24600
COLGATE PALMOLIVE COCOM194162103-1,281,16013,673SH-SOLE113,67300
CONOCOPHILLIPSCOM20825C104-1,724,00816,416SH-SOLE116,41600
CONOCOPHILLIPSCOM20825C104-9,536,44690,806SH-SOLE290,80600
COPART INCCOM217204106-1,657,91729,297SH-SOLE229,29700
CORPAY INCCOM SHS219948106-1,914,4735,490SH-SOLE25,49000
CORTEVA INCCOM22052L104-1,072,76817,047SH-SOLE217,04700
COSTCO WHSL CORP NEWCOM22160K105-9,463,47510,006SH-SOLE110,00600
COSTCO WHSL CORP NEWCOM22160K105-6,372,6666,738SH-SOLE26,73800
CROWDSTRIKE HLDGS INCCL A22788C105-2,127,1156,033SH-SOLE26,03300
DANAHER CORPORATIONCOM235851102-2,982,13514,547SH-SOLE214,54700
DARDEN RESTAURANTS INCCOM237194105-1,438,5306,924SH-SOLE26,92400
DARLING INGREDIENTS INCCOM237266101-970,53331,067SH-SOLE231,06700
DEERE & COCOM244199105-1,773,2043,778SH-SOLE23,77800
DEXCOM INCCOM252131107-763,27711,177SH-SOLE211,17700
DISNEY WALT COCOM254687106-1,265,13712,818SH-SOLE112,81800
DISNEY WALT COCOM254687106-10,578,469107,178SH-SOLE2107,17800
DUKE ENERGY CORP NEWCOM NEW26441C204-1,872,11815,349SH-SOLE215,34900
DYNATRACE INCCOM NEW268150109-1,649,73134,989SH-SOLE234,98900
EATON CORP PLCSHSG29183103-3,195,36211,755SH-SOLE211,75500
ELECTRONIC ARTS INCCOM285512109-8,742,15960,491SH-SOLE260,49100
ELEVANCE HEALTH INCCOM036752103-5,400,89812,417SH-SOLE212,41700
ELI LILLY & COCOM532457108-11,867,50114,369SH-SOLE214,36900
ELI LILLY & COCOM532457108-17,364,75821,025SH-SOLE121,02500
EMERSON ELEC COCOM291011104-7,326,03566,819SH-SOLE266,81900
EOG RES INCCOM26875P101-8,049,49762,769SH-SOLE262,76900
ERMENEGILDO ZEGNA N VORD SHSN30577105-5,234,294707,337SH-SOLE1707,33700
ESSEX PPTY TR INCCOM297178105-2,337,2907,624SH-SOLE17,62400
EXXON MOBIL CORPCOM30231G102-13,680,161115,027SH-SOLE2115,02700
EXXON MOBIL CORPCOM30231G102-2,636,08322,165SH-SOLE122,16500
FAIR ISAAC CORPCOM303250104-1,244,808675SH-SOLE267500
FISERV INCCOM337738108-21,964,41499,463SH-SOLE299,46300
FORTINET INCCOM34959E109-3,695,13338,387SH-SOLE238,38700
FULL TRUCK ALLIANCE CO LTDSPONSORED ADS35969L108-4,544,537355,876SH-SOLE1355,87600
FULL TRUCK ALLIANCE CO LTDSPONSORED ADS35969L108-638,50050,000SH-SOLE250,00000
FUTU HLDGS LTDSPON ADS CL A36118L106-869,9758,500SH-SOLE28,50000
GALLAGHER ARTHUR J & COCOM363576109-4,831,28913,994SH-SOLE213,99400
GARTNER INCCOM366651107-2,766,9266,592SH-SOLE26,59200
GE AEROSPACECOM NEW369604301-4,260,99321,289SH-SOLE221,28900
GE AEROSPACECOM NEW369604301-1,378,2336,886SH-SOLE16,88600
GOLDMAN SACHS GROUP INCCOM38141G104-834,1851,527SH-SOLE11,52700
HALEON PLCSPON ADS405552100-6,856,350666,312SH-SOLE2666,31200
HDFC BANK LTDSPONSORED ADS40415F101-3,322,00050,000SH-SOLE250,00000
HILTON WORLDWIDE HLDGS INCCOM43300A203-3,177,73613,965SH-SOLE213,96500
HILTON WORLDWIDE HLDGS INCCOM43300A203-11,570,23550,847SH-SOLE150,84700
HOME DEPOT INCCOM437076102-2,247,3176,132SH-SOLE16,13200
HOME DEPOT INCCOM437076102-3,741,86310,210SH-SOLE210,21000
HONEYWELL INTL INCCOM438516106-1,234,2915,829SH-SOLE15,82900
HONEYWELL INTL INCCOM438516106-3,411,50416,111SH-SOLE216,11100
HUNTINGTON BANCSHARES INCCOM446150104-7,549,550502,968SH-SOLE2502,96800
ICICI BANK LIMITEDADR45104G104-3,622,121114,915SH-SOLE2114,91500
IDEXX LABS INCCOM45168D104-2,162,3235,149SH-SOLE25,14900
INFOSYS LTDSPONSORED ADR456788108-7,063,845387,060SH-SOLE2387,06000
INGERSOLL RAND INCCOM45687V106-1,595,55819,937SH-SOLE219,93700
INTUITCOM461202103-3,622,5415,900SH-SOLE25,90000
INTUITCOM461202103-8,607,52614,019SH-SOLE114,01900
INTUITIVE SURGICAL INCCOM NEW46120E602-6,678,71613,485SH-SOLE213,48500
INTUITIVE SURGICAL INCCOM NEW46120E602-5,608,93311,325SH-SOLE111,32500
IQVIA HLDGS INCCOM46266C105-1,281,3487,268SH-SOLE27,26800
ISHARES TRMSCI INDIA ETF46429B598-1,694,20732,910SH-SOLE232,91000
JOHNSON & JOHNSONCOM478160104-8,359,99450,410SH-SOLE250,41000
JPMORGAN CHASE & CO.COM46625H100-10,502,52042,815SH-SOLE242,81500
JPMORGAN CHASE & CO.COM46625H100-3,980,97416,229SH-SOLE116,22900
KANZHUN LIMITEDSPONSORED ADS48553T106-2,396,250125,000SH-SOLE2125,00000
KEURIG DR PEPPER INCCOM49271V100-7,404,079216,367SH-SOLE2216,36700
KEYCORPCOM493267108-1,392,37787,078SH-SOLE187,07800
KLA CORPCOM NEW482480100-1,762,0422,592SH-SOLE22,59200
LAM RESEARCH CORPCOM NEW512807306-4,375,95860,192SH-SOLE160,19200
LAM RESEARCH CORPCOM NEW512807306-3,380,76846,503SH-SOLE246,50300
LANTHEUS HLDGS INCCOM516544103-769,2837,882SH-SOLE27,88200
LEAR CORPCOM NEW521865204-1,420,51816,102SH-SOLE116,10200
LINDE PLCSHSG54950103-6,858,41214,729SH-SOLE214,72900
LINDE PLCSHSG54950103-24,441,44452,490SH-SOLE152,49000
LIVE NATION ENTERTAINMENT INCOM538034109-1,088,9078,339SH-SOLE28,33900
LOWES COS INCCOM548661107-1,228,6565,268SH-SOLE15,26800
LULULEMON ATHLETICA INCCOM550021109-1,075,6283,800SH-SOLE23,80000
MARKEL GROUP INCCOM570535104-12,221,6416,537SH-SOLE26,53700
MARRIOTT INTL INC NEWCL A571903202-11,176,34446,920SH-SOLE146,92000
MARTIN MARIETTA MATLS INCCOM573284106-705,7201,476SH-SOLE11,47600
MASTERCARD INCORPORATEDCL A57636Q104-14,532,85426,514SH-SOLE226,51400
MASTERCARD INCORPORATEDCL A57636Q104-2,073,5383,783SH-SOLE13,78300
MEDTRONIC PLCSHSG5960L103-7,806,22886,871SH-SOLE286,87100
MERCK & CO INCCOM58933Y105-11,299,617125,887SH-SOLE2125,88700
META PLATFORMS INCCL A30303M102-34,880,73160,519SH-SOLE260,51900
META PLATFORMS INCCL A30303M102-6,131,89410,639SH-SOLE110,63900
MICROSOFT CORPCOM594918104-38,883,272103,581SH-SOLE2103,58100
MICROSOFT CORPCOM594918104-34,454,42091,783SH-SOLE191,78300
MOTOROLA SOLUTIONS INCCOM NEW620076307-4,243,6929,693SH-SOLE29,69300
MSCI INCCOM55354G100-2,996,5855,299SH-SOLE25,29900
NASDAQ INCCOM631103108-6,375,57884,044SH-SOLE284,04400
NETFLIX INCCOM64110L106-7,853,7688,422SH-SOLE18,42200
NETFLIX INCCOM64110L106-12,959,36913,897SH-SOLE213,89700
NEXTERA ENERGY INCCOM65339F101-3,957,64755,828SH-SOLE255,82800
NIKE INCCL B654106103-4,328,44768,186SH-SOLE268,18600
NORTHROP GRUMMAN CORPCOM666807102-1,197,0792,338SH-SOLE12,33800
NVIDIA CORPORATIONCOM67066G104-31,844,212293,820SH-SOLE1293,82000
NVIDIA CORPORATIONCOM67066G104-22,063,025203,571SH-SOLE2203,57100
NXP SEMICONDUCTORS N VCOMN6596X109-5,632,42829,635SH-SOLE229,63500
ON HLDG AGNAMEN AKT AH5919C104-8,182,296186,300SH-SOLE1186,30000
ONESPAWORLD HOLDINGS LIMITEDCOMP73684113-9,788,570583,000SH-SOLE1583,00000
ORACLE CORPCOM68389X105-23,614,049168,901SH-SOLE2168,90100
ORACLE CORPCOM68389X105-1,369,2999,794SH-SOLE19,79400
PALO ALTO NETWORKS INCCOM697435105-2,885,69316,911SH-SOLE216,91100
PAYPAL HLDGS INCCOM70450Y103-3,363,83351,553SH-SOLE151,55300
PEPSICO INCCOM713448108-1,711,26511,413SH-SOLE111,41300
PHILIP MORRIS INTL INCCOM718172109-2,340,79114,747SH-SOLE114,74700
PPG INDS INCCOM693506107-1,646,70215,059SH-SOLE115,05900
PROCTER AND GAMBLE COCOM742718109-2,292,49013,452SH-SOLE113,45200
PROCTER AND GAMBLE COCOM742718109-17,697,094103,844SH-SOLE2103,84400
PROGRESSIVE CORPCOM743315103-7,788,43527,520SH-SOLE227,52000
PROGRESSIVE CORPCOM743315103-1,366,6554,829SH-SOLE14,82900
PTC INCCOM69370C100-1,998,08012,895SH-SOLE212,89500
PTC INCCOM69370C100-2,843,79718,353SH-SOLE118,35300
PUBLIC STORAGE OPER COCOM74460D109-8,004,81026,746SH-SOLE226,74600
PUBLIC SVC ENTERPRISE GRP INCOM744573106-1,601,39319,458SH-SOLE219,45800
RALPH LAUREN CORPCL A751212101-12,813,95758,050SH-SOLE158,05000
REGIONS FINANCIAL CORP NEWCOM7591EP100-748,33834,438SH-SOLE134,43800
RENEW ENERGY GLOBAL PLCCL A SHSG7500M104-942,400160,000SH-SOLE2160,00000
REPUBLIC SVCS INCCOM760759100-3,569,92314,742SH-SOLE214,74200
ROCKWELL AUTOMATION INCCOM773903109-1,271,2304,920SH-SOLE14,92000
ROYAL CARIBBEAN GROUPCOMV7780T103-7,063,02734,380SH-SOLE134,38000
S&P GLOBAL INCCOM78409V104-3,130,9126,162SH-SOLE26,16200
SALESFORCE INCCOM79466L302-1,519,9915,664SH-SOLE15,66400
SCHLUMBERGER LTDCOM STK806857108-1,380,44533,025SH-SOLE133,02500
SCHWAB CHARLES CORPCOM808513105-15,046,121192,209SH-SOLE2192,20900
SEMPRACOM816851109-1,437,40420,143SH-SOLE220,14300
SERVICENOW INCCOM81762P102-4,600,0975,778SH-SOLE15,77800
SERVICENOW INCCOM81762P102-4,672,5465,869SH-SOLE25,86900
SHARKNINJA INCCOM SHSG8068L108-9,811,018117,624SH-SOLE1117,62400
SOUTHERN COCOM842587107-2,483,20227,006SH-SOLE227,00600
SPOTIFY TECHNOLOGY S ASHSL8681T102-2,768,3015,033SH-SOLE25,03300
STARBUCKS CORPCOM855244109-1,795,83218,308SH-SOLE118,30800
STRYKER CORPORATIONCOM863667101-5,958,97816,008SH-SOLE216,00800
SYNOPSYS INCCOM871607107-1,534,4253,578SH-SOLE23,57800
SYSCO CORPCOM871829107-1,515,43320,195SH-SOLE220,19500
TAIWAN SEMICONDUCTOR MFG LTDSPONSORED ADS874039100-8,916,02653,711SH-SOLE153,71100
TAIWAN SEMICONDUCTOR MFG LTDSPONSORED ADS874039100-3,448,31820,773SH-SOLE220,77300
TAL EDUCATION GROUPSPONSORED ADS874080104-4,121,520312,000SH-SOLE2312,00000
TAPESTRY INCCOM876030107-10,737,525152,500SH-SOLE1152,50000
TE CONNECTIVITY PLCORD SHSG87052109-7,585,35153,675SH-SOLE253,67500
TEXAS INSTRS INCCOM882508104-2,951,03316,422SH-SOLE216,42200
TEXAS INSTRS INCCOM882508104-1,317,0217,329SH-SOLE17,32900
THERMO FISHER SCIENTIFIC INCCOM883556102-1,203,1972,418SH-SOLE12,41800
THERMO FISHER SCIENTIFIC INCCOM883556102-4,927,2359,902SH-SOLE29,90200
TJX COS INC NEWCOM872540109-1,318,36310,824SH-SOLE110,82400
TRADEWEB MKTS INCCL A892672106-1,320,5528,895SH-SOLE28,89500
TRIP COM GROUP LTDADS89677Q107-3,337,63252,495SH-SOLE152,49500
UBER TECHNOLOGIES INCCOM90353T100-4,426,09960,748SH-SOLE260,74800
UBER TECHNOLOGIES INCCOM90353T100-2,723,79837,384SH-SOLE137,38400
UNION PAC CORPCOM907818108-2,578,32310,914SH-SOLE210,91400
UNITED PARCEL SERVICE INCCL B911312106-5,812,64252,847SH-SOLE252,84700
UNITEDHEALTH GROUP INCCOM91324P102-9,363,07917,877SH-SOLE217,87700
UNITEDHEALTH GROUP INCCOM91324P102-6,904,07313,182SH-SOLE113,18200
US BANCORP DELCOM NEW902973304-4,590,243108,722SH-SOLE2108,72200
VANGUARD INDEX FDSS&P 500 ETF SHS922908363-11,431,38322,250SH-SOLE222,25000
VANGUARD INTL EQUITY INDEX FFTSE EMR MKT ETF922042858-1,398,41031,000SH-SOLE231,00000
VENTAS INCCOM92276F100-1,681,18224,450SH-SOLE124,45000
VERISK ANALYTICS INCCOM92345Y106-5,604,78018,832SH-SOLE218,83200
VERTEX PHARMACEUTICALS INCCOM92532F100-5,354,83711,045SH-SOLE211,04500
VIKING HOLDINGS LTDORD SHSG93A5A101-12,958,540326,001SH-SOLE1326,00100
VISA INCCOM CL A92826C839-11,735,50433,486SH-SOLE133,48600
VISA INCCOM CL A92826C839-20,737,41959,172SH-SOLE259,17200
WALMART INCCOM931142103-2,051,47723,368SH-SOLE123,36800
WARNER BROS DISCOVERY INCCOM SER A934423104-4,257,482396,783SH-SOLE2396,78300
WATERS CORPCOM941848103-1,282,2553,479SH-SOLE23,47900
WELLTOWER INCCOM95040Q104-1,706,14711,136SH-SOLE111,13600
WIPRO LTDSPON ADR 1 SH97651M109-1,836,000600,000SH-SOLE2600,00000
WNS HLDGS LTDCOM SHSG98196101-1,537,25025,000SH-SOLE225,00000