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Disclosery

AMTM AMENTUM HOLDINGS INC

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Stock (common), issuer CIK 2011286

479 managers (483 13F filers) reported a position in AMTM shares at 2025-12-31, 203,822,352 shares in all. 67 filers opened a position and 57 filers sold out during the quarter.

Managers
479
13F filers
483
New
67
Added
132
Reduced
159
Sold out
57
Shares held by filers
203,822,352

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, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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
ASO GROUP Ltd17,724$514K0.2%13F-HRTimeline
Sterling Capital Management LLC17,578$510K0.01%+7,61713F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…17,521$508K0.01%+34913F-HRTimelineGroup
Cambridge Investment Research Advisors,…17,306$502K<0.01%-35613F-HRTimeline
Intrinsic Value Partners, LLC16,679$484K0.36%013F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC16,511$479K<0.01%-1,26013F-HRTimeline
Impact Partnership Wealth, LLC16,314$473K0.06%new13F-HRTimeline
Gryphon Financial Partners LLC16,285$472K0.05%new13F-HRTimeline
LEAVELL INVESTMENT MANAGEMENT, INC.16,137$468K0.02%013F-HRTimeline
PROFUND ADVISORS LLC15,771$457K0.01%new13F-HRTimeline
TOTH FINANCIAL ADVISORY CORP15,690$455K0.05%+1,97413F-HRTimeline
MACKENZIE FINANCIAL CORP15,479$453K<0.01%new13F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV15,502$453K<0.01%new13F-HRTimeline
Summit Financial, LLC15,175$440K0.01%-1213F-HRTimeline
LuminArx Capital Management LP15,000$435K0.42%13F-HRTimeline
HighTower Advisors, LLC14,640$425K<0.01%+63813F-HRTimeline
First Bank & Trust14,166$411K0.07%-6213F-HRTimeline
FIRST MANHATTAN CO. LLC.14,117$409K<0.01%-8313F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…13,525$392K<0.01%013F-HRTimeline
Granite Investment Partners, LLC13,248$384K0.02%-1,51013F-HRTimeline
EVERGREEN CAPITAL MANAGEMENT LLC13,195$383K0.01%-66813F-HRTimeline
QUADRANT CAPITAL GROUP LLC13,054$379K0.01%-213F-HRTimeline
Marex Group Ltdin group Marex Group Ltd13,002$377K<0.01%new13F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…12,623$366K<0.01%-88413F-HRTimelineGroup
DAVENPORT & Co LLC12,458$361K<0.01%-1,18713F-HRTimeline
Advyzon Investment Management, LLC12,276$356K0.04%+1,79513F-HRTimeline
CAHABA WEALTH MANAGEMENT, INC.12,076$350K0.02%013F-HRTimeline
BCS Private Wealth Management, Inc.11,999$348K0.12%+57513F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources11,933$346K<0.01%+2,89813F-HRTimelineGroup
State of Wyoming11,916$346K0.04%+9,12013F-HRTimeline
Caldwell Investment Management Ltd.11,669$342K0.21%new13F-HRTimeline
Penserra Capital Management LLCin group Penserra Capital Management L…11,268$326K<0.01%new13F-HRTimelineGroup
Lipe & Dalton10,916$317K0.16%-21213F-HRTimeline
SHUFRO ROSE & CO LLC10,869$315K0.02%-1,68513F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC10,809$313K<0.01%-290,45213F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd10,497$304K0.01%new13F-HRTimeline
Grantham, Mayo, Van Otterloo & Co. LLC10,457$303K<0.01%013F-HRTimeline
M&T Bank Corpin group M&T Bank Corp10,067$292K<0.01%+1,53613F-HR/ATimelineGroup
ARS Investment Partners, LLC10,000$290K0.02%+1,00013F-HRTimeline
Symmetry Investments LPin group Symmetry Investments LP10,000$290K0.05%new13F-HRTimelineGroup
BROWN ADVISORY INCin group BROWN ADVISORY INC9,949$289K<0.01%-20213F-HRTimelineGroup
Allworth Financial LP9,848$286K<0.01%-20613F-HRTimeline
SFMG, LLC9,772$283K0.02%-1,88013F-HRTimeline
VIRGINIA RETIREMENT SYSTEMS ET Al9,600$278K<0.01%new13F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC9,439$274K<0.01%new13F-HRTimelineGroup
PFG Investments, LLC9,423$273K0.01%+72113F-HRTimeline
Ensign Peak Advisors, Inc9,386$272K<0.01%-20,60013F-HR/ATimeline
Caprock Group, LLC9,310$270K0.01%new13F-HRTimeline
Comprehensive Financial Planning, Inc./…8,830$256K0.17%new13F-HRTimeline
SYON CAPITAL LLC8,727$253K0.01%013F-HRTimeline
Aberdeen Wealth Management LLC8,643$251K0.12%013F-HRTimeline
SILVERCREST ASSET MANAGEMENT GROUP LLC8,515$247K<0.01%-2,12113F-HRTimeline
XPONANCE LLC8,438$245K<0.01%new13F-HRTimeline
Concurrent Investment Advisors, LLCin group Concurrent Investment Advisor…8,382$243K<0.01%new13F-HRTimelineGroup
Utah Retirement Systems8,339$242K<0.01%new13F-HRTimeline
Janney Capital Management LLC8,306$241K0.02%new13F-HRTimeline
WEXFORD CAPITAL LP8,251$239K0.06%new13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC8,199$237K<0.01%new13F-HRTimelineGroup
Badgley Phelps Wealth Managers, LLC8,155$236K<0.01%-81613F-HRTimeline
Lido Advisors, LLCin group Lido Advisors, LLC9,849$236K<0.01%+6013F-HRTimelineGroup
Washington Trust Advisors, Inc.8,130$236K0.02%-13313F-HRTimeline
CX Institutional7,940$230K0.01%-13513F-HRTimeline
Smithfield Trust Co7,890$229K0.01%013F-HRTimeline
FRG Family Wealth Advisors LLC7,864$228K0.04%new13F-HRTimeline
MIRABELLA FINANCIAL SERVICES LLP7,806$226K0.02%new13F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…7,689$223K<0.01%new13F-HRTimelineGroup
Machina Capital S.A.S.7,483$217K0.04%new13F-HRTimeline
Summit Trail Advisors, LLC7,444$216K<0.01%new13F-HRTimeline
SAGE RHINO CAPITAL LLC7,336$213K0.04%new13F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.7,248$210K0.03%new13F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC7,214$209K0.01%new13F-HRTimeline
Formidable Asset Management, LLC7,163$208K0.03%new13F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…7,085$205K<0.01%new13F-HRTimelineGroup
UNITED CAPITAL FINANCIAL ADVISORS, LLCin group UNITED CAPITAL FINANCIAL ADVI…6,952$202K<0.01%new13F-HRTimelineGroup
BOK Financial Private Wealth, Inc.6,910$200K0.01%-17813F-HRTimeline
KBC Group NVin group KBC Group NV5,848$170K<0.01%-27813F-HRTimelineGroup
GAMMA Investing LLC5,305$154K0.01%+28413F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…4,412$128K<0.01%-1,27913F-HR/ATimelineGroup
Arax Advisory Partners4,361$126K<0.01%-3,39913F-HRTimeline
Essential Partners LLC4,219$122K0.04%+22013F-HRTimeline
Parallel Advisors, LLC4,196$122K<0.01%+3213F-HRTimeline
UMB Bank, n.a.4,140$120K<0.01%-2813F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
MAI Capital Management4,001$116K<0.01%+11113F-HRTimeline
DANSKE BANK A/S3,962$115K<0.01%new13F-HRTimeline
WHITTIER TRUST CO3,614$114K<0.01%-38513F-HRTimeline
STRS OHIO3,814$111K<0.01%+713F-HRTimeline
Kestra Advisory Services, LLCin group Kestra Advisory Services, LLC3,690$107K<0.01%new13F-HRTimelineGroup
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.3,139$91K<0.01%-2,16113F-HRTimelineGroup
LORING WOLCOTT & COOLIDGE FIDUCIARY ADV…2,174$76.9K<0.01%013F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…2,606$75.6K<0.01%-4913F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…2,589$75.1K<0.01%+24913F-HRTimelineGroup
Farther Finance Advisors, LLC2,390$69.3K<0.01%-50213F-HRTimeline
Pinnacle Wealth Planning Services, Inc.2,384$69.1K0.01%new13F-HRTimeline
SIGNATUREFD, LLC2,343$67.9K<0.01%+14513F-HRTimeline
Smartleaf Asset Management LLC2,273$66.6K<0.01%+13113F-HRTimeline
Quarry LP2,063$59.8K0.01%+1,39713F-HRTimeline
HM PAYSON & CO1,941$56.3K<0.01%+71513F-HRTimeline
Vermillion & White Wealth Management Gr…1,905$55.2K0.03%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1,853$53.7K<0.01%+48113F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …1,824$53K<0.01%+51413F-HRTimelineGroup
Asset Planning,Inc1,793$52K0.04%013F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC1,739$50K<0.01%-8213F-HRTimelineGroup
ATLAS CAPITAL ADVISORS INC.1,662$48.2K0.01%13F-HRTimeline
Sound Income Strategies, LLC1,363$47.4K<0.01%+42513F-HRTimeline
Global Retirement Partners, LLC1,539$44.6K<0.01%+13313F-HRTimeline
Federation des caisses Desjardins du Qu…1,485$43.1K<0.01%-36013F-HRTimeline
NOMURA ASSET MANAGEMENT CO LTDin group NOMURA ASSET MANAGEMENT CO LTD1,449$42K<0.01%013F-HRTimelineGroup
Salomon & Ludwin, LLC1,305$41K<0.01%+64813F-HRTimeline
Atlantic Union Bankshares Corpin group Atlantic Union Bankshares Corp1,377$39.9K<0.01%-9813F-HRTimelineGroup
FINANCIAL CONSULATE, INC1,300$37.7K0.01%new13F-HRTimeline
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO1,208$35K<0.01%013F-HRTimelineGroup
WHITTIER TRUST CO OF NEVADA INC1,081$34.1K<0.01%013F-HRTimeline
Korea Investment CORP1,166$33.8K<0.01%013F-HRTimeline
Spire Wealth Managementin group Spire Wealth Management1,055$30.6K<0.01%-7913F-HRTimelineGroup
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/1,032$29.9K<0.01%-34613F-HRTimelineGroup
Strategic Wealth Partners, Ltd.898$26K<0.01%+7913F-HRTimeline
Quent Capital, LLC858$24.9K<0.01%+3313F-HRTimeline
Clearstead Advisors, LLC804$23.3K<0.01%-11313F-HRTimeline
Keating Financial Advisory Services, In…802$23.3K<0.01%13F-HRTimeline
Blue Trust, Inc.794$23K<0.01%-41013F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…757$22K<0.01%-27213F-HR/ATimelineGroup
Steward Partners Investment Advisory, L…754$21.9K<0.01%+19813F-HRTimeline
BDF-GESTION752$21.8K<0.01%-5113F-HRTimeline
Chung Wu Investment Group, LLC744$21.6K0.02%013F-HRTimeline
First Command Advisory Services, Inc.695$20.2K<0.01%013F-HRTimeline
Root Financial Partners, LLC694$20.1K<0.01%-9913F-HRTimeline
Pinnacle Bancorp, Inc.680$19.7K0.01%-413F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…677$19.6K<0.01%-10113F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC893$19.6K<0.01%new13F-HRTimeline
Parvin Asset Management, LLC643$18.6K0.02%+10013F-HRTimeline
FLAGSHIP HARBOR ADVISORS, LLC626$18.2K<0.01%new13F-HRTimeline
Evolution Advisers, Inc.636$18K0.01%013F-HRTimeline
NewEdge Advisors, LLC598$17.3K<0.01%-313F-HRTimeline
Parkside Financial Bank & Trust572$16.6K<0.01%-1713F-HRTimeline
PRIVATE TRUST CO NA566$16.4K<0.01%013F-HRTimeline
N.E.W. Advisory Services LLC542$15.7K<0.01%013F-HRTimeline
Colonial Trust Advisorsin group Colonial Trust Advisors538$15.6K<0.01%+5513F-HRTimelineGroup
TD Waterhouse Canada Inc.530$15.4K<0.01%-4913F-HRTimeline
ROTHSCHILD INVESTMENT LLC525$15.2K<0.01%+38513F-HRTimeline
Mendota Financial Group, LLC515$14.9K0.01%013F-HRTimeline
THURSTON, SPRINGER, MILLER, HERD & TITA…511$14.8K0.01%+24613F-HRTimeline
Global Wealth Strategies & Associates493$14.3K<0.01%013F-HRTimeline
SFAM, LLC487$14.1K0.01%13F-HRTimeline
BARTLETT & CO. WEALTH MANAGEMENT LLC484$14K<0.01%013F-HRTimeline
IFP Advisors, Inc432$12.5K<0.01%+10613F-HRTimeline
Covestor Ltd409$12K0.01%013F-HRTimeline
Basecamp Wealth Advisors LLC399$11.6K<0.01%13F-HRTimeline
CHESAPEAKE ASSET MANAGEMENT LLC369$10.7K0.01%013F-HRTimeline
Winch Advisory Services, LLC365$10.6K<0.01%013F-HRTimeline
CoreCap Advisors, LLC364$10.6K<0.01%+5613F-HRTimeline
Larson Financial Group LLC354$10.3K<0.01%+7113F-HRTimeline
Y.D. More Investments Ltdin group Y.D. More Investments Ltd338$9.82K<0.01%-18213F-HRTimelineGroup
LRI Investments, LLC332$9.63K<0.01%013F-HRTimeline
Moisand Fitzgerald Tamayo, LLC314$9.11K<0.01%013F-HRTimeline
Rossby Financial, LCC288$8.35K<0.01%013F-HRTimeline
Murphy & Mullick Capital Management Corp283$8.21K0.01%-9313F-HRTimeline
Laurel Wealth Advisors LLC275$7.97K<0.01%new13F-HRTimeline
Steigerwald, Gordon & Koch Inc.272$7.89K<0.01%013F-HRTimeline
OAKWORTH CAPITAL, INC.271$7.86K<0.01%013F-HRTimeline
AdvisorNet Financial, Inc257$7.45K<0.01%+23513F-HRTimeline
Torren Management, LLC243$7.05K<0.01%13F-HRTimeline
DT Investment Partners, LLC230$6.67K<0.01%013F-HRTimeline
Financial Management Professionals, Inc.228$6.61K<0.01%013F-HRTimeline
Glen Eagle Advisors, LLC226$6.55K<0.01%-613F-HRTimeline
Perkins Coie Trust Co219$6.35K<0.01%013F-HRTimeline
OLD SECOND NATIONAL BANK OF AURORA212$6.15K<0.01%013F-HRTimeline
BELLEVUE ASSET MANAGEMENT, LLC197$5.71K<0.01%013F-HRTimeline
MassMutual Private Wealth & Trust, FSB195$5.66K<0.01%013F-HRTimeline
CENTRAL TRUST Co194$5.63K<0.01%-1,34013F-HRTimeline
Sachetta, LLC194$5.63K<0.01%013F-HRTimeline
DV Trading LLC188$5.45K<0.01%13F-HRTimeline
Cromwell Holdings LLC184$5.34K<0.01%013F-HRTimeline
Medallion Wealth Advisors, LLC180$5.22K<0.01%013F-HRTimeline
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…170$5.18K<0.01%013F-HRTimelineGroup
Elevated Capital Advisors, LLC177$5.13K<0.01%new13F-HRTimeline
HARBOR CAPITAL ADVISORS, INC.169$5K<0.01%-113F-HRTimeline
Versant Capital Management, Inc171$4.96K<0.01%-17113F-HRTimeline
Geneos Wealth Management Inc.170$4.93K<0.01%013F-HRTimeline
True Wealth Design, LLC169$4.9K<0.01%+10313F-HRTimeline
Atlantic Edge Private Wealth Management…164$4.76K<0.01%013F-HRTimeline
Golden State Wealth Management, LLC161$4.67K<0.01%-11113F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC144$4.18K<0.01%-113F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC142$4.12K<0.01%+2613F-HRTimelineGroup
McIlrath & Eck, LLC136$3.94K<0.01%013F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…135$3.92K<0.01%-4113F-HRTimelineGroup
ORG Partners LLC130$3.77K<0.01%013F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK125$3.62K<0.01%-7213F-HRTimelineGroup
Roxbury Financial LLC118$3.42K<0.01%013F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC111$3.22K<0.01%-8913F-HRTimelineGroup
BankPlus Trust Departmentin group BankPlus Trust Department110$3.19K<0.01%-33413F-HRTimelineGroup
Grove Bank & Trust108$3.13K<0.01%013F-HRTimeline
Garton & Associates Financial Advisors …107$3.1K<0.01%13F-HRTimeline
GODSEY & GIBB, INC106$3.07K<0.01%013F-HRTimeline
HARBOR INVESTMENT ADVISORY, LLC106$3.07K<0.01%013F-HRTimeline
Ramirez Asset Management, Inc.106$3.07K<0.01%-3613F-HRTimeline
Arlington Trust Co LLCin group Arlington Trust Co LLC100$2.9K<0.01%new13F-HRTimelineGroup
Private Wealth Management Group, LLC100$2.9K<0.01%-613F-HRTimeline
Crews Bank & Trust100$2.9K<0.01%013F-HRTimeline
Rosenberg Matthew Hamilton99$2.87K<0.01%013F-HRTimeline
Asset Dedication, LLC92$2.67K<0.01%013F-HRTimeline