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Amentum Holdings, Inc.

AMTM
Exchange
NYSE
Industry
Services-Business Services, NEC
SEC CIK
0002011286

No open-market purchases or sales by Amentum Holdings, Inc. insiders were filed in the last 90 days; 464 institutions reported holding it in 13F filings for Q2 2026, worth $4.34B in total; Soros Fund Management is the only superinvestor holding it.

13F holders, Q3 2024

Institutional positions in Amentum Holdings, Inc. as of Sep 30, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
492
+492 vs. Q2 2024
Shares held
100.6M
+100.6M vs. Q2 2024
Total value
$3.23B
+$3.23B vs. Q2 2024
New holders
492
0 more added
Sold out
0
0 more reduced

Compare with Q2 2024: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AMTM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2024: 492 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 492 institutionsQ4 2024: 451 institutionsQ1 2025: 418 institutionsQ2 2025: 461 institutionsQ3 2025: 462 institutionsQ4 2025: 483 institutionsQ1 2026: 486 institutionsQ2 2026: 464 institutions
Value heldQ3 2024: $3.23B
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $3.23BQ4 2024: $3.48BQ1 2025: $3.49BQ2 2025: $4.73BQ3 2025: $4.63BQ4 2025: $5.64BQ1 2026: $5.28BQ2 2026: $4.34B
Institutions holding AMTM and their total value by quarter
QuarterHoldersValue
Q2 2026464$4.34B
Q1 2026486$5.28B
Q4 2025483$5.64B
Q3 2025462$4.63B
Q2 2025461$4.73B
Q1 2025418$3.49B
Q4 2024451$3.48B
Q3 2024492$3.23B
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q3 2024

Shares, value and share of portfolio for each institution holding Amentum Holdings, Inc.; share changes are against Q2 2024.

Institutions holding AMTM in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Bartlett & Co. Wealth Management LLC682$22.0K0.00%+682New
IFP Advisors, Inc699$22.5K0.00%+699New
Ramirez Asset Management, Inc.700$22.6K0.00%+700New
Parallel Advisors, LLC743$24.0K0.00%+743New
Mendota Financial Group, LLC749$24.2K0.01%+749New
Vista Private Wealth Partners. LLC750$24.2K0.01%+750New
Arrow Financial Corp795$25.6K0.00%+795New
Ostrum Asset Management808$26.1K0.00%+808New
Walleye Capital LLC830$26.8K0.00%+830New
Atlas Capital Advisors LLC833$26.9K0.00%+833New
Thurston, Springer, Miller, Herd & Titak, Inc.866$27.9K0.01%+866New
SRS Capital Advisors, Inc.878$28.3K0.00%+878New
US Bancorp940$30.3K0.00%+940New
Dynamic Wealth Strategies, LLC993$32.0K0.03%+993New
Anchor Investment Management, LLC993$32.0K0.00%+993New
Signaturefd, LLC1,013$32.7K0.00%+1,013New
PFG Private Wealth Management, LLC1,014$32.7K0.02%+1,014New
Group One Trading, L.P.1,048$33.8K0.00%+1,048New
Federation des caisses Desjardins du Quebec1,535$34.0K0.00%+1,535New
Glen Eagle Advisors, LLC1,083$34.9K0.01%+1,083New
Capital Analysts, LLC1,101$36.0K0.00%+1,101New
HM Payson & Co1,180$38.1K0.00%+1,180New
GeoWealth Management, LLC1,239$40.0K0.00%+1,239New
Centerpoint Advisors, LLC1,254$40.0K0.01%+1,254New
Manchester Capital Management LLC1,300$41.9K0.00%+1,300New
Studio Investment Management LLC1,314$42.4K0.01%+1,314New
Ameritas Investment Partners, Inc.1,318$42.5K0.00%+1,318New
Harbor Capital Advisors, Inc.1,348$43.0K0.00%+1,348New
Bessemer Group Inc1,448$46.0K0.00%+1,448New
Global Retirement Partners, LLC1,485$47.9K0.00%+1,485New
Wiser Advisor Group LLC1,524$49.2K0.07%+1,524New
Proequities, Inc.1,539$49.6K0.00%+1,539New
Principal Securities, Inc.1,752$56.5K0.00%+1,752New
Brown Brothers Harriman & Co1,808$58.3K0.00%+1,808New
Plante Moran Financial Advisors, LLC1,876$60.5K0.01%+1,876New
State of Wyoming1,923$62.0K0.01%+1,923New
Loring Wolcott & Coolidge Fiduciary Advisors LLP2,092$62.7K0.00%+2,092New
Evermay Wealth Management LLC1,980$63.9K0.01%+1,980New
Nomura Asset Management Co Ltd2,386$76.9K0.00%+2,386New
Vestcor Inc2,499$81.0K0.00%+2,499New
Picton Mahoney Asset Management2,606$84.0K0.00%+2,606New
Shell Asset Management Co2,895$93.0K0.00%+2,895New
Edmond de Rothschild Holding S.A.2,909$93.8K0.00%+2,909New
EverSource Wealth Advisors, LLC3,248$104.7K0.01%+3,248New
Fifth Third Bancorp3,701$119.4K0.00%+3,701New
Northwestern Mutual Investment Management Company, LLC3,968$128.0K0.00%+3,968New
Convergence Investment Partners, LLC4,052$130.7K0.04%+4,052New
Allworth Financial LP4,338$139.9K0.00%+4,338New
Intact Investment Management Inc.4,360$140.6K0.00%+4,360New
Steward Partners Investment Advisory, LLC4,391$141.6K0.00%+4,391New
Tower Research Capital LLC (TRC)4,723$152.3K0.00%+4,723New
TD Private Client Wealth LLC5,578$179.9K0.01%+5,578New
HGK Asset Management Inc5,677$183.1K0.03%+5,677New
Energy Income Partners, LLC5,858$188.9K0.00%+5,858New
Point72 Asset Management, L.P.6,009$193.8K0.00%+6,009New
New Mexico Educational Retirement Board6,087$196.0K0.01%+6,087New
Sheaff Brock Investment Advisors, LLC6,210$200.3K0.02%+6,210New
Clearstead Advisors, LLC6,337$204.4K0.00%+6,337New
Cim Investment Mangement Inc6,362$205.2K0.06%+6,362New
Dorsey & Whitney Trust CO LLC6,384$205.9K0.01%+6,384New
Lakeview Capital Partners, LLC6,448$207.9K0.03%+6,448New
SRN Advisors, LLC6,460$208.3K0.18%+6,460New
Grandfield & Dodd, LLC6,473$208.8K0.01%+6,473New
Exchange Traded Concepts, LLC6,568$211.8K0.01%+6,568New
RMB Capital Management, LLC6,609$213.1K0.00%+6,609New
Commerce Bank6,623$213.6K0.00%+6,623New
Eagle Rock Investment Company, LLC6,639$214.1K0.04%+6,639New
McDonald Partners LLC6,726$216.9K0.05%+6,726New
Dover Advisors, LLC6,797$219.2K0.12%+6,797New
CIBC Private Wealth Group, LLC6,964$224.6K0.00%+6,964New
Schechter Investment Advisors, LLC8,983$225.4K0.02%+8,983New
Louisiana State Employees Retirement System7,000$225.8K0.00%+7,000New
Advisors Management Group Inc7,052$227.0K0.05%+7,052New
Maryland State Retirement & Pension System7,121$229.7K0.00%+7,121New
Ballentine Partners, LLC7,215$232.7K0.00%+7,215New
Metis Global Partners, LLC7,246$233.7K0.01%+7,246New
GTS Securities LLC7,365$237.5K0.00%+7,365New
Y-Intercept (Hong Kong) Ltd7,370$237.7K0.01%+7,370New
XTX Topco Ltd7,392$238.4K0.02%+7,392New
BNP PARIBAS ASSET MANAGEMENT Holding S.A.7,465$241.0K0.00%+7,465New
BayBridge Capital Group, LLC7,484$241.4K0.17%+7,484New
Guggenheim Capital LLC7,521$242.6K0.00%+7,521New
M&T Bank Corp7,531$242.9K0.00%+7,531New
Aster Capital Management (DIFC) Ltd7,554$243.6K0.05%+7,554New
Cyrus J. Lawrence, LLC7,700$248.0K0.05%+7,700New
Monarch Capital Management Inc7,715$248.8K0.07%+7,715New
Hennion & Walsh Asset Management, Inc.7,765$250.4K0.01%+7,765New
Highland Capital Management Fund Advisors, L.P.9,340$252.2K0.03%+9,340New
Dynasty Wealth Management, LLC7,897$254.7K0.01%+7,897New
Avantax Advisory Services, Inc.7,983$257.5K0.00%+7,983New
Mizuho Securities USA LLC8,119$261.8K0.01%+8,119New
Kestra Advisory Services, LLC8,149$262.8K0.00%+8,149New
Legacy Bridge, LLC8,219$265.1K0.14%+8,219New
Rothschild Investment LLC8,510$274.4K0.02%+8,510New
Caldwell Investment Management Ltd.11,000$282.2K0.20%+11,000New
Stratos Wealth Advisors, LLC8,758$282.5K0.01%+8,758New
Allianz Asset Management GmbH8,772$282.9K0.00%+8,772New
Independent Advisor Alliance8,780$283.2K0.01%+8,780New
Vident Advisory, LLC8,801$283.8K0.01%+8,801New
Coastline Trust Co8,805$284.0K0.03%+8,805New