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Disclosery

AMTM AMENTUM HOLDINGS INC

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Stock (common), issuer CIK 2011286

416 managers (421 13F filers) reported a position in AMTM shares at 2025-03-31, 191,731,192 shares in all. 69 filers opened a position and 94 filers sold out during the quarter.

Managers
416
13F filers
421
New
69
Added
112
Reduced
152
Sold out
94
Shares held by filers
191,731,192

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2025

Filers in the available 13F reports with a share position at 2025-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
AMERICAN SECURITIES LLC43,893,904$799M100%013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.18,248,989$332M0.01%+1,474,21813F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.17,191,110$313M0.06%+3,334,87113F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding16,342,560$297M-209,538Timeline
PRIMECAP MANAGEMENT CO/CA/10,061,589$183M0.15%+3,647,21013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP6,576,351$120M<0.01%+122,09813F-HRTimelineGroup
FMR LLCin group FMR LLC4,408,949$80.2M0.01%+2,013,89613F-HRTimelineGroup
FRONTIER CAPITAL MANAGEMENT CO LLC3,578,732$65.1M0.71%new13F-HRTimeline
THOMPSON SIEGEL & WALMSLEY LLC3,326,378$60.5M1.03%+1,377,69413F-HRTimeline
NorthCoast Asset Management LLC3,075,305$56M0.28%-76,95713F-HR/ATimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC2,926,482$53.3M0.05%+2,531,66013F-HRTimelineGroup
DISCOVERY CAPITAL MANAGEMENT, LLC / CT2,630,930$47.9M5.73%+2,165,63013F-HRTimeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP2,603,564$47.4M0.06%+1,471,27913F-HRTimelineGroup
Ruane, Cunniff & Goldfarb L.P.2,393,039$43.6M0.79%-43,25513F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC2,299,997$41.9M<0.01%+336,74913F-HRTimelineGroup
Voss Capital, LP2,220,709$40.4M3.1%+1,770,89113F-HRTimeline
FIL Ltdin group FIL Ltd2,209,313$40.2M0.04%+415,76013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY2,092,848$38.1M<0.01%+610,32713F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC2,011,792$36.6M0.04%+815,21813F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management1,880,887$34.2M0.09%new13F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding1,803,417$32.8M+397,939Timeline
NORGES BANK1,716,506$31.2M<0.01%+276,37913F-HR/ATimeline
Arvin Capital Management LP1,687,149$30.7M11.29%+721,95213F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…1,621,324$29.5M0.06%+9,52813F-HR/ATimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co1,549,158$28.2M0.01%+284,90113F-HR/ATimelineGroup
COOPER CREEK PARTNERS MANAGEMENT LLC1,223,986$22.3M0.72%-2,933,04813F-HRTimeline
Freestone Grove Partners LP1,164,835$21.2M0.22%new13F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,113,654$20.3M0.01%-40,47613F-HRTimelineGroup
Kopernik Global Investors, LLC1,077,495$19.6M2.03%+311,51313F-HRTimeline
683 Capital Management, LLCin group 683 Capital Management, LLC1,013,000$18.4M1.87%+588,00013F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/968,538$17.6M<0.01%+359,69313F-HRTimelineGroup
AVENIR CORP904,162$16.5M1.73%+710,69213F-HRTimeline
Penn Capital Management Company, LLC889,434$16.2M1.58%+443,12613F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP854,423$15.6M<0.01%+12,20413F-HRTimelineGroup
CACTI ASSET MANAGEMENT LLC834,442$15.1M1.17%+9,97813F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp760,509$13.8M<0.01%+109,19513F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding712,210$13M+110,123Timeline
CSM Advisors, LLC638,057$11.6M0.63%-1,00013F-HRTimeline
Ghisallo Capital Management LLC635,569$11.6M1.01%new13F-HRTimeline
Engine Capital Management, LPin group Engine Capital Management, LP635,255$11.6M2.19%+13,85513F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC628,154$11.4M0.01%+224,03913F-HR/ATimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND611,787$11.1M0.02%+232,83513F-HR/ATimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC601,760$11M0.02%+574,27013F-HR/ATimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA582,195$10.6M<0.01%-36,70813F-HR/ATimelineGroup
Loews Corp572,684$10.4M0.08%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…533,567$9.71M0.02%-342,79413F-HRTimelineGroup
MOORE CAPITAL MANAGEMENT, LP498,264$9.07M0.3%-93,92613F-HR/ATimeline
Public Sector Pension Investment Board455,129$8.28M0.04%+145,94313F-HRTimeline
Davidson Kempner Capital Management LP450,000$8.19M0.12%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC447,578$8.15M<0.01%+175,35313F-HR/ATimelineGroup
Aristotle Capital Boston, LLCin group ARISTOTLE INVESTMENT SERVICES…446,612$8.13M0.41%-30,36513F-HRTimelineGroup
CI INVESTMENTS INC.in group CI INVESTMENTS INC.443,581$8.07M0.03%-199,53413F-HRTimelineGroup
LOOMIS SAYLES & CO L Pin group LOOMIS SAYLES & CO L P435,674$7.93M0.01%new13F-HRTimelineGroup
CenterBook Partners LP414,574$7.55M0.48%+343,26813F-HRTimeline
Arosa Capital Management LP406,900$7.41M4.91%+56,90013F-HRTimeline
BW Gestao de Investimentos Ltda.394,400$7.18M0.81%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc390,937$7.12M<0.01%-287,16613F-HRTimelineGroup
Monashee Investment Management LLC360,000$6.55M0.78%new13F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC331,597$6.04M<0.01%-27,63013F-HRTimelineGroup
RHUMBLINE ADVISERS310,103$5.64M0.01%+14,91913F-HR/ATimeline
Castalian Partners, LLC304,500$5.54M24.34%-695,50013F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC292,857$5.33M0.08%+277,59413F-HRTimelineGroup
Verition Fund Management LLC290,706$5.29M0.03%-30,21013F-HRTimeline
Nuveen, LLCin group TIAA287,801$5.24M<0.01%13F-HRTimelineGroup
Swiss National Bank259,200$4.72M<0.01%-4,00013F-HRTimeline
Telos Capital Management, Inc.256,178$4.66M0.51%-10,85813F-HRTimeline
COMERICA BANK248,718$4.53M0.02%+199,93113F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…232,933$4.24M0.01%+107,39513F-HRTimelineGroup
TWINBEECH CAPITAL LP225,438$4.1M0.07%new13F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO202,150$3.68M<0.01%-85,16313F-HR/ATimelineGroup
Hudson Value Partners, LLC188,283$3.43M1.29%new13F-HRTimeline
California Public Employees Retirement …187,848$3.42M<0.01%-9,67113F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC180,572$3.29M<0.01%+95,01013F-HRTimelineGroup
GRIZZLYROCK CAPITAL, LLC164,226$2.99M2.71%new13F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…151,801$2.76M0.01%+37,05713F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC137,754$2.7M<0.01%+15,18013F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP147,352$2.68M<0.01%new13F-HRTimelineGroup
NEW YORK STATE TEACHERS RETIREMENT SYST…138,486$2.52M0.01%+14,36413F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…131,174$2.39M<0.01%-24513F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson131,000$2.37M<0.01%+64,76113F-HRTimelineGroup
Keeley-Teton Advisors, LLC128,081$2.33M0.28%+110,32413F-HRTimeline
Eisler Capital Management Ltd.126,889$2.31M0.07%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC117,809$2.14M<0.01%-209,95313F-HRTimelineGroup
WINTON GROUP Ltdin group WINTON GROUP Ltd116,680$2.12M0.13%+51,93213F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…114,636$2.09M<0.01%013F-HRTimeline
GROUP ONE TRADING LLC104,684$1.91M0.08%+18,64813F-HRTimeline
Alpine Global Management, LLC100,000$1.82M0.49%+75,00013F-HRTimeline
SEVEN GRAND MANAGERS, LLC100,000$1.82M0.42%new13F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…97,653$1.78M0.01%+1,97613F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC97,188$1.77M<0.01%-15,03513F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD95,714$1.74M<0.01%+21,09113F-HRTimeline
COUNTRY CLUB BANK93,752$1.69M0.11%+61,15813F-HRTimeline
LPL Financial LLC93,022$1.69M<0.01%-25,76013F-HRTimeline
North Growth Management Ltd.92,000$1.67M0.35%+1,00013F-HRTimeline
NOMURA ASSET MANAGEMENT CO LTDgroup of 2 filers holding91,343$1.66M+76,130Timeline
PRICE T ROWE ASSOCIATES INC /MD/88,101$1.6M<0.01%+25,97513F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO87,714$1.6M<0.01%-25,96013F-HRTimelineGroup
Walleye Capital LLCgroup of 2 filers holding82,539$1.5M+49,767Timeline
Crestwood Advisors Group, LLC80,559$1.47M0.03%-12,96313F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding79,600$1.45MnewTimeline
State of Alaska, Department of Revenue79,345$1.44M0.02%+8,89813F-HRTimeline
State of Tennessee, Department of Treas…75,568$1.38M0.01%+33,04513F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC68,770$1.25M0.03%+68,70513F-HRTimelineGroup
Caption Management, LLC68,400$1.24M0.06%-41,45113F-HRTimeline
Treasurer of the State of North Carolina67,783$1.23M<0.01%+10,69013F-HRTimeline
Illinois Municipal Retirement Fund66,507$1.21M0.02%new13F-HRTimeline
HAHN CAPITAL MANAGEMENT LLC65,633$1.19M0.58%-11,68913F-HRTimeline
Kodai Capital Management LP65,540$1.19M0.05%new13F-HRTimeline
Centiva Capital, LP65,258$1.19M0.07%-38,88213F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS64,170$1.17M<0.01%-22,52213F-HRTimeline
Wolf Hill Capital Management, LPin group Wolf Hill Capital Management,…63,857$1.16M0.11%new13F-HRTimelineGroup
Bryn Mawr Trust Advisors, LLC62,372$1.14M0.07%+2,89813F-HRTimeline
Weiss Asset Management LPin group Weiss Asset Management LP60,953$1.11M0.03%+30,92213F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
Coastal Bridge Advisors, LLC58,626$1.07M0.1%new13F-HR/ATimeline
Louisiana State Employees Retirement Sy…58,400$1.06M0.02%-1,60013F-HRTimeline
Natixis Investment Managersgroup of 2 filers holding56,858$1.03M+33,108Timeline
Advisors Asset Management, Inc.56,602$1.03M0.02%-14,64713F-HR/ATimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…55,816$1.02M0.01%+6,23213F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC55,504$1.01M<0.01%-114,14713F-HR/ATimelineGroup
ALLIANCEBERNSTEIN L.P.55,179$1M<0.01%+7,12613F-HRTimeline
BLAIR WILLIAM & CO/IL54,200$986K<0.01%-2,21913F-HRTimeline
Washington Trust Advisors, Inc.53,846$980K0.09%-26,39413F-HRTimeline
Engineers Gate Manager LP53,830$980K0.02%new13F-HRTimeline
NEVILLE RODIE & SHAW INC53,343$971K0.08%-27,65613F-HRTimeline
SIMPLEX TRADING, LLC52,827$961K0.03%-167,15413F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN50,452$918K<0.01%-39,10913F-HRTimelineGroup
Maryland State Retirement & Pension Sys…49,022$892K0.02%+11413F-HRTimeline
Paragon Capital Management LLC48,072$875K0.5%-2,02413F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…47,616$867K<0.01%+3,01013F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC46,440$845K0.01%-2,33013F-HRTimeline
NEXPOINT ASSET MANAGEMENT, L.P.in group NEXPOINT ASSET MANAGEMENT, L.…43,900$799K0.08%+25,90513F-HRTimelineGroup
AMALGAMATED BANK43,366$789K0.01%+4,75613F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP43,236$787K<0.01%-29,54713F-HRTimelineGroup
Hikari Tsushin, Inc.42,800$779K0.05%013F-HRTimeline
AWH Capital, L.P.42,500$774K1.12%new13F-HRTimeline
Quantinno Capital Management LP41,210$750K<0.01%+3,89513F-HRTimeline
LATHROP INVESTMENT MANAGEMENT CO40,524$738K0.15%-43,52013F-HRTimeline
Clear Harbor Asset Management, LLC40,543$738K0.06%new13F-HRTimeline
Freestone Capital Holdings, LLCin group Freestone Capital Holdings, L…40,027$728K0.03%new13F-HRTimelineGroup
Pine Valley Investments Ltd Liability Co39,820$725K0.05%+26013F-HRTimeline
Versor Investments LP39,400$717K0.12%new13F-HRTimeline
TOWER BRIDGE ADVISORS38,888$708K0.08%-54,84413F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC38,804$706K<0.01%-30,71913F-HRTimelineGroup
Allianz Asset Management GmbHin group Allianz SE38,700$704K<0.01%new13F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM38,385$699K<0.01%-45013F-HRTimeline
Ensign Peak Advisors, Inc38,260$696K<0.01%013F-HRTimeline
Williams Jones Wealth Management, LLC.38,110$694K0.01%-2,93513F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …37,520$683K<0.01%new13F-HRTimelineGroup
American Trust Investment Advisors, LLC35,688$650K0.27%-2,16613F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/35,459$645K<0.01%-24,28213F-HRTimelineGroup
SIG BROKERAGE, LP35,052$638K0.19%new13F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…34,938$636K<0.01%-1,60013F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…34,352$625K<0.01%+7,86213F-HRTimeline
Janney Montgomery Scott LLC33,767$615K<0.01%new13F-HRTimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC33,240$605K0.01%new13F-HRTimelineGroup
National Philanthropic Trust33,021$601K0.01%-15,64213F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND32,800$597K0.01%+3,60013F-HRTimeline
STEPHENS INC /AR/in group Stephens Investment Managemen…32,729$596K0.01%-3,97313F-HRTimelineGroup
WOLVERINE TRADING, LLC32,816$593K0.02%-38,28713F-HRTimeline
ABS Direct Equity Fund LLC32,500$592K0.79%new13F-HRTimeline
Mariner, LLCin group Mariner, LLC31,729$577K<0.01%-7,15513F-HRTimelineGroup
CANTOR FITZGERALD, L. P.in group CANTOR FITZGERALD, L. P.31,514$574K0.02%new13F-HRTimelineGroup
EVERETT HARRIS & CO /CA/31,410$572K0.01%-10,47813F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC31,400$571K<0.01%+20,40013F-HRTimeline
GSA CAPITAL PARTNERS LLP30,488$555K0.05%new13F-HRTimeline
NISA INVESTMENT ADVISORS, LLC30,487$555K<0.01%-4,51213F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC29,859$543K<0.01%-12,46013F-HRTimeline
MARCO INVESTMENT MANAGEMENT LLC29,245$532K0.05%-6,73013F-HRTimeline
CLIFFORD SWAN INVESTMENT COUNSEL LLC28,630$521K0.02%-80013F-HRTimeline
Quantbot Technologies LP28,362$516K0.02%new13F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC28,115$512K<0.01%-4,46513F-HRTimeline
Carlson Capital, L.P.28,000$510K0.28%new13F-HRTimeline
Modera Wealth Management, LLC27,848$507K0.01%-7,34313F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP27,594$499K<0.01%-9,41513F-HR/ATimelineGroup
Rock Creek Group LLCin group Rock Creek Group LLC25,000$455K0.05%new13F-HRTimelineGroup
SECURITY NATIONAL BANK OF SO DAK24,824$452K0.26%+1,52513F-HRTimeline
SIT INVESTMENT ASSOCIATES INCin group SIT INVESTMENT ASSOCIATES INC24,700$450K0.01%013F-HRTimelineGroup
WESBANCO BANK INC24,050$438K0.02%013F-HRTimeline
Peak Asset Management, LLC24,000$437K0.08%013F-HRTimeline
AlphaQuest LLC23,780$433K0.05%013F-HRTimeline
Focus Partners Wealthin group Focus Partners Wealth23,759$432K<0.01%-177,58513F-HR/ATimelineGroup
US BANCORP \DE\in group US BANCORP \DE\23,558$429K<0.01%-4,38413F-HRTimelineGroup
Police & Firemen's Retirement System of…23,122$421K<0.01%+4,25613F-HRTimeline
Proficio Capital Partners LLC22,977$412K0.03%new13F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP21,722$395K<0.01%-6,63613F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …21,465$391K<0.01%-10,70013F-HRTimelineGroup
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…21,267$387K<0.01%+1,50913F-HRTimelineGroup
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…20,957$381K<0.01%+2,16113F-HR/ATimelineGroup
CAPTRUST FINANCIAL ADVISORS20,615$375K<0.01%-5,24113F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.20,597$375K<0.01%+61813F-HRTimelineGroup
Granite Investment Partners, LLC20,053$365K0.02%-18,28013F-HRTimeline
Wilmington Savings Fund Society, FSB19,866$362K0.01%-12,39313F-HRTimeline
Sandia Investment Management LP19,805$360K1.05%new13F-HRTimeline
Creative Planningin group Creative Planning19,187$349K<0.01%-59413F-HRTimelineGroup
KIRTLAND HILLS CAPITAL MANAGEMENT, LLC18,542$348K0.21%013F-HRTimeline
Phoenix Financial Ltd.in group Phoenix Financial Ltd.18,932$345K0.01%013F-HRTimelineGroup
Hyperion Capital Advisors LP18,586$338K0.18%-97713F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC17,533$319K<0.01%-127,93813F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\17,088$311K<0.01%+2,82013F-HRTimelineGroup
ARMSTRONG HENRY H ASSOCIATES INC17,081$311K0.03%013F-HRTimeline