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Disclosery

AMTM AMENTUM HOLDINGS INC

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Stock (common), issuer CIK 2011286

455 managers (462 13F filers) reported a position in AMTM shares at 2025-06-30, 200,345,520 shares in all. 103 filers opened a position and 65 filers sold out during the quarter.

Managers
455
13F filers
462
New
103
Added
235
Reduced
100
Sold out
65
Shares held by filers
200,345,520

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, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, 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 LLC45,026,743$1.06B100%+1,132,83913F-HRTimeline
Invesco Ltd.in group Invesco Ltd.19,577,241$462M0.08%+2,386,13113F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.18,995,083$448M0.01%+746,09413F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding16,548,430$391M+205,870Timeline
PRIMECAP MANAGEMENT CO/CA/12,030,656$284M0.23%+1,969,06713F-HRTimeline
STATE STREET CORPin group STATE STREET CORP7,078,249$167M0.01%+501,89813F-HRTimelineGroup
FRONTIER CAPITAL MANAGEMENT CO LLC5,460,743$129M1.19%+1,882,01113F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC4,666,215$110M0.1%+2,654,42313F-HRTimelineGroup
FMR LLCin group FMR LLC4,573,930$108M0.01%+164,98113F-HRTimelineGroup
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP3,068,158$72.4M0.08%+464,59413F-HRTimelineGroup
NorthCoast Asset Management LLC3,000,670$70.8M0.3%-74,63513F-HRTimeline
THOMPSON SIEGEL & WALMSLEY LLC2,786,913$65.8M1.11%-539,46513F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC2,513,161$59.4M<0.01%+213,16413F-HRTimelineGroup
Ruane, Cunniff & Goldfarb L.P.2,441,743$57.6M0.99%+48,70413F-HRTimeline
DISCOVERY CAPITAL MANAGEMENT, LLC / CT2,299,130$54.3M4.26%-331,80013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY2,177,222$51.4M<0.01%+84,37413F-HRTimelineGroup
NORGES BANK2,160,728$51M0.01%+444,22213F-HRTimeline
Arvin Capital Management LP2,139,434$50.5M14.42%+452,28513F-HRTimeline
FIL Ltdin group FIL Ltd2,067,205$48.8M0.04%-142,10813F-HRTimelineGroup
Freestone Grove Partners LP2,051,859$48.4M0.37%+887,02413F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co1,745,013$41.2M0.01%+195,85513F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…1,687,105$39.8M0.09%+65,78113F-HR/ATimelineGroup
683 Capital Management, LLCin group 683 Capital Management, LLC1,630,000$38.5M3.9%+617,00013F-HRTimelineGroup
Voss Capital, LP1,400,000$33.1M2.28%-820,70913F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding1,379,880$32.6MnewTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,334,752$31.5M0.01%+221,09813F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding1,196,846$28.3M-606,571Timeline
LOOMIS SAYLES & CO L Pin group LOOMIS SAYLES & CO L P1,059,209$25M0.03%+623,53513F-HRTimelineGroup
Penn Capital Management Company, LLC1,003,472$23.8M2.05%+114,03813F-HRTimeline
BRIGHTLINE CAPITAL MANAGEMENT, LLC1,000,000$23.6M10.17%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP941,033$22.2M<0.01%+86,61013F-HRTimelineGroup
AVENIR CORP895,352$21.1M2.17%-8,81013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/868,265$20.5M<0.01%-100,27313F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp868,206$20.5M<0.01%+107,69713F-HRTimelineGroup
CACTI ASSET MANAGEMENT LLC848,946$19.9M1.42%+14,50413F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding744,552$17.6M+32,342Timeline
BW Gestao de Investimentos Ltda.715,065$16.9M1.6%+320,66513F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND693,777$16.4M0.02%+81,99013F-HR/ATimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC651,572$15.4M0.02%+23,41813F-HRTimelineGroup
Kopernik Global Investors, LLC636,226$15M1.65%-441,26913F-HRTimeline
Engine Capital Management, LPin group Engine Capital Management, LP635,255$15M3.17%013F-HRTimelineGroup
CSM Advisors, LLC633,048$14.9M0.44%-5,00913F-HRTimeline
MOORE CAPITAL MANAGEMENT, LP611,123$14.4M0.29%+112,85913F-HRTimeline
Nuveen, LLCin group TIAA516,574$12.2M<0.01%+228,77313F-HRTimelineGroup
Public Sector Pension Investment Board514,172$12.1M0.05%+59,04313F-HRTimeline
Loews Corp470,000$11.1M0.09%-102,68413F-HRTimeline
CI INVESTMENTS INC.in group CI INVESTMENTS INC.454,422$10.7M0.04%+10,84113F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA443,200$10.5M<0.01%-138,99513F-HR/ATimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC432,165$10.2M0.11%+139,30813F-HRTimelineGroup
Aristotle Capital Boston, LLCin group ARISTOTLE INVESTMENT SERVICES…422,976$9.99M0.51%-23,63613F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc404,673$9.55M<0.01%+13,73613F-HRTimelineGroup
COMERICA BANK361,862$8.54M0.03%+113,14413F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.350,628$8.28M0.02%new13F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC350,203$8.27M0.01%new13F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.348,684$8.23M<0.01%+293,50513F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC342,899$8.1M0.01%-2,583,58313F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC342,862$8.09M<0.01%+11,26513F-HRTimelineGroup
ROYCE & ASSOCIATES LP335,000$7.91M0.08%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…328,182$7.75M0.01%+95,24913F-HRTimelineGroup
Swiss National Bank302,191$7.13M<0.01%+42,99113F-HRTimeline
RHUMBLINE ADVISERS287,247$6.78M0.01%-22,85613F-HRTimeline
GRIZZLYROCK CAPITAL, LLC253,363$5.98M4.5%+89,13713F-HRTimeline
Arosa Capital Management LP252,500$5.96M4.35%-154,40013F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC238,247$5.63M<0.01%-209,33113F-HRTimelineGroup
California Public Employees Retirement …228,921$5.4M<0.01%+41,07313F-HRTimeline
Telos Capital Management, Inc.220,718$5.21M0.53%-35,46013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO219,126$5.17M0.01%+16,97613F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd198,726$4.69M0.11%new13F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC189,810$4.48M<0.01%+9,23813F-HRTimelineGroup
Hudson Value Partners, LLC185,701$4.38M1.51%-2,58213F-HRTimeline
COUNTRY CLUB BANK172,318$4.04M0.25%+78,56613F-HRTimeline
AWH Capital, L.P.165,250$3.9M4.55%+122,75013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…162,297$3.83M<0.01%+31,12313F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC150,008$3.77M<0.01%+12,25413F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…155,104$3.76M0.01%+3,30313F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…137,435$3.25M0.01%-1,05113F-HRTimeline
GAMCO Investors (Gabelli)group of 2 filers holding133,723$3.16MnewTimeline
Ancora Advisors LLCin group Ancora Advisors LLC132,204$3.12M0.07%+63,43413F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC129,864$3.07M<0.01%+12,05513F-HRTimelineGroup
CenterBook Partners LP125,340$2.96M0.16%-289,23413F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…122,366$2.89M0.01%+7,73013F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd112,421$2.65M0.14%-4,25913F-HRTimelineGroup
Soviero Asset Management, LP110,000$2.6M1.9%new13F-HRTimeline
NOMURA ASSET MANAGEMENT CO LTDgroup of 2 filers holding109,726$2.59M+18,383Timeline
PRICE T ROWE ASSOCIATES INC /MD/106,147$2.51M<0.01%+18,04613F-HRTimeline
RFG Advisory, LLC102,171$2.41M0.06%new13F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…100,104$2.36M0.01%+2,45113F-HRTimelineGroup
North Growth Management Ltd.97,000$2.3M0.43%+5,00013F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC96,785$2.29M<0.01%-40313F-HRTimelineGroup
Verition Fund Management LLC92,481$2.18M0.01%-198,22513F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD91,857$2.17M0.01%-3,85713F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO91,322$2.16M<0.01%+3,60813F-HRTimelineGroup
LPL Financial LLC90,733$2.14M<0.01%-2,28913F-HRTimeline
State of Alaska, Department of Revenue89,832$2.12M0.02%+10,48713F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …83,769$1.98M<0.01%+62,30413F-HRTimelineGroup
Crestwood Advisors Group, LLC81,774$1.93M0.03%+1,21513F-HRTimeline
Illinois Municipal Retirement Fund75,452$1.78M0.02%+8,94513F-HRTimeline
Alpine Global Management, LLC75,056$1.77M0.42%-24,94413F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP74,831$1.77M<0.01%-72,52113F-HRTimelineGroup
Treasurer of the State of North Carolina74,368$1.76M0.01%+6,58513F-HRTimeline
Bryn Mawr Trust Advisors, LLC72,728$1.72M0.09%+10,35613F-HRTimeline
Louisiana State Employees Retirement Sy…70,500$1.66M0.03%+12,10013F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson69,400$1.64M<0.01%-61,60013F-HRTimelineGroup
HAHN CAPITAL MANAGEMENT LLC68,748$1.62M0.77%+3,11513F-HRTimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC68,040$1.61M0.03%+34,80013F-HRTimelineGroup
GROUP ONE TRADING LLC67,908$1.6M0.05%-36,77613F-HRTimeline
NATIXIS ADVISORS, LLCin group Natixis Investment Managers67,077$1.58M<0.01%+10,21913F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS64,845$1.53M0.01%+67513F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd64,723$1.53M0.06%new13F-HRTimelineGroup
State of Tennessee, Department of Treas…62,654$1.48M0.01%-12,91413F-HRTimeline
Versor Investments LP62,022$1.46M0.26%+22,62213F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…60,778$1.43M<0.01%new13F-HRTimelineGroup
Coastal Bridge Advisors, LLC60,413$1.43M0.12%+1,78713F-HRTimeline
Police & Firemen's Retirement System of…60,391$1.43M0.01%+37,26913F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC58,800$1.39M<0.01%+42,64713F-HR/ATimelineGroup
YOUSIF CAPITAL MANAGEMENT, LLC56,966$1.34M0.01%+10,52613F-HRTimeline
BLAIR WILLIAM & CO/IL56,568$1.34M<0.01%+2,36813F-HRTimeline
Maryland State Retirement & Pension Sys…51,806$1.22M0.03%+2,78413F-HRTimeline
Quantinno Capital Management LP51,543$1.22M0.01%+10,33313F-HRTimeline
Hyperion Capital Advisors LP51,487$1.22M0.76%+32,90113F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…51,336$1.21M0.01%-4,48013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…51,304$1.21M<0.01%+3,68813F-HRTimeline
Marex Group Ltdin group Marex Group Ltd50,000$1.18M0.02%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC49,239$1.16M<0.01%-6,26513F-HR/ATimelineGroup
Paragon Capital Management LLC48,710$1.15M0.59%+63813F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP48,384$1.14M<0.01%+5,14813F-HR/ATimelineGroup
Williams Jones Wealth Management, LLC.47,660$1.13M0.01%+9,55013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…46,707$1.1M<0.01%-486,86013F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM46,153$1.09M0.01%+7,76813F-HRTimeline
AMALGAMATED BANK45,835$1.08M0.01%+2,46913F-HRTimeline
Hikari Tsushin, Inc.45,403$1.07M0.08%+2,60313F-HRTimeline
Advisors Asset Management, Inc.45,183$1.07M0.02%-11,41913F-HR/ATimeline
Cerity Partners LLCin group Cerity Partners LLC45,116$1.07M<0.01%+6,31213F-HRTimelineGroup
Pine Valley Investments Ltd Liability Co44,618$1.05M0.06%+4,79813F-HRTimeline
Mariner, LLCin group Mariner, LLC42,989$1.01M<0.01%+11,26013F-HRTimelineGroup
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/40,669$960K<0.01%+5,21013F-HRTimelineGroup
Ensign Peak Advisors, Inc40,586$958K<0.01%+2,32613F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN40,206$949K<0.01%-10,24613F-HRTimelineGroup
Clear Harbor Asset Management, LLC40,053$946K0.07%-49013F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…38,732$914K<0.01%+4,38013F-HRTimeline
Fortress Investment Group LLCin group Fortress Investment Group LLC38,106$900K0.13%+31,81913F-HRTimelineGroup
Focus Partners Wealthin group Focus Partners Wealth36,934$872K<0.01%+13,17513F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …36,363$859K<0.01%-1,15713F-HRTimelineGroup
TOWER BRIDGE ADVISORS36,058$851K0.09%-2,83013F-HRTimeline
NEXPOINT ASSET MANAGEMENT, L.P.in group NEXPOINT ASSET MANAGEMENT, L.…35,263$833K0.08%-8,63713F-HRTimelineGroup
OREGON PUBLIC EMPLOYEES RETIREMENT FUND34,400$812K0.01%+1,60013F-HRTimeline
Creative Planningin group Creative Planning34,301$810K<0.01%+15,11413F-HRTimelineGroup
National Philanthropic Trust33,827$799K0.01%+80613F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC33,708$796K<0.01%+3,84913F-HRTimeline
NISA INVESTMENT ADVISORS, LLC33,630$794K<0.01%+3,14313F-HRTimeline
American Trust Investment Advisors, LLC33,252$785K0.4%-2,43613F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP33,005$779K<0.01%+19,76713F-HRTimelineGroup
CAPTRUST FINANCIAL ADVISORS30,815$728K<0.01%+10,20013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP30,156$708K<0.01%+2,56213F-HRTimelineGroup
NEVILLE RODIE & SHAW INC29,442$695K0.05%-23,90113F-HRTimeline
CLIFFORD SWAN INVESTMENT COUNSEL LLC28,576$675K0.02%-5413F-HRTimeline
Oak Thistle LLC28,230$667K0.1%new13F-HRTimeline
STEPHENS INC /AR/in group Stephens Investment Managemen…27,900$659K0.01%-4,82913F-HRTimelineGroup
LATHROP INVESTMENT MANAGEMENT CO27,811$657K0.12%-12,71313F-HRTimeline
SECURITY NATIONAL BANK OF SO DAK26,840$634K0.35%+2,01613F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…26,838$634K<0.01%-8,10013F-HRTimeline
Modera Wealth Management, LLC26,224$619K0.01%-1,62413F-HRTimeline
SIT INVESTMENT ASSOCIATES INCin group SIT INVESTMENT ASSOCIATES INC26,202$619K0.01%+1,50213F-HRTimelineGroup
Entropy Technologies, LP26,167$618K0.05%new13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\26,122$617K<0.01%+2,56413F-HRTimelineGroup
Proficio Capital Partners LLC26,031$615K0.04%+3,05413F-HRTimeline
MARCO INVESTMENT MANAGEMENT LLC25,157$594K0.05%-4,08813F-HRTimeline
IAT REINSURANCE CO LTD.24,693$583K0.13%new13F-HRTimeline
WESBANCO BANK INC24,466$578K0.02%+41613F-HRTimeline
Peak Asset Management, LLC24,000$567K0.1%013F-HRTimeline
ALGERT GLOBAL LLC23,880$564K0.01%new13F-HR/ATimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…23,191$548K<0.01%+1,92413F-HRTimelineGroup
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP22,516$532K<0.01%+79413F-HRTimelineGroup
Sandia Investment Management LP22,505$531K1.36%+2,70013F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC22,138$523K<0.01%-5,97713F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.21,993$519K<0.01%+1,39613F-HR/ATimelineGroup
OPPENHEIMER ASSET MANAGEMENT INC.group of 2 filers holding21,946$518KnewTimeline
Wilmington Savings Fund Society, FSB20,849$492K0.01%+98313F-HRTimeline
Granite Investment Partners, LLC19,973$472K0.02%-8013F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…19,379$458K<0.01%-1,57813F-HRTimelineGroup
SECURITY NATIONAL BANK OF SIOUX CITY IO…19,273$455K0.32%+2,20413F-HRTimeline
Phoenix Financial Ltd.in group Phoenix Financial Ltd.18,932$447K0.01%013F-HRTimelineGroup
Cambridge Investment Research Advisors,…18,179$429K<0.01%+2,99213F-HRTimeline
CWM, LLCin group CWM, LLC17,482$413K<0.01%+13,14813F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\17,399$411K<0.01%+31113F-HRTimelineGroup
Intrinsic Value Partners, LLC16,679$394K0.35%+79113F-HRTimeline
LEAVELL INVESTMENT MANAGEMENT, INC.16,138$381K0.02%+4,52413F-HRTimeline
IMC-Chicago, LLC15,710$371K0.01%new13F-HRTimeline
AXQ CAPITAL, LP15,609$369K0.12%new13F-HRTimeline
FIRST MANHATTAN CO. LLC.15,435$364K<0.01%-57413F-HRTimeline
Rock Creek Group LLCin group Rock Creek Group LLC15,000$354K0.04%-10,00013F-HRTimelineGroup
HighTower Advisors, LLC14,858$351K<0.01%-1,84313F-HRTimeline
CAHABA WEALTH MANAGEMENT, INC.14,472$342K0.03%+82913F-HRTimeline
Cetera Investment Advisers14,179$335K<0.01%new13F-HRTimeline
First Bank & Trust14,043$332K0.06%-31413F-HRTimeline
CIBC Asset Management Inc13,992$330K<0.01%+83913F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…13,924$329K<0.01%-1,63813F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding13,729$324K-65,871Timeline
ARISTEIA CAPITAL, L.L.C.13,568$320K0.01%new13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…13,525$319K<0.01%+75713F-HRTimeline