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, Q4 2024
Institutional positions in Amentum Holdings, Inc. as of Dec 31, 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
- 451
- −38 vs. Q3 2024
- Shares held
- 165.3M
- +64.8M (+64.4%) vs. Q3 2024
- Total value
- $3.48B
- +$250.9M (+7.8%) vs. Q3 2024
- New holders
- 145
- 94 more added
- Sold out
- 183
- 158 more reduced
3 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 464 | $4.34B |
| Q1 2026 | 486 | $5.28B |
| Q4 2025 | 483 | $5.64B |
| Q3 2025 | 462 | $4.63B |
| Q2 2025 | 461 | $4.73B |
| Q1 2025 | 418 | $3.49B |
| Q4 2024 | 451 | $3.48B |
| Q3 2024 | 492 | $3.23B |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2024
Shares, value and share of portfolio for each institution holding Amentum Holdings, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Legacy Bridge, LLC | 8,219 | $172.8K | 0.09% | 00.0% | Unchanged |
| Washington Trust Co | 9,128 | $192.0K | 0.01% | +9,128 | New |
| JustInvest LLC | 9,651 | $203.0K | 0.00% | +9,651 | New |
| Fifth Lane Capital, LP | 9,775 | $205.6K | 0.60% | +9,775 | New |
| Intact Investment Management Inc. | 9,800 | $206.1K | 0.01% | +5,440+124.8% | Added |
| Pekin Hardy Strauss, Inc. | 9,900 | $208.2K | 0.03% | +9,900 | New |
| Toronto Dominion Bank | 10,000 | $210.3K | 0.00% | −36,923−78.7% | Reduced |
| Janney Capital Management LLC | 10,039 | $211.0K | 0.01% | +10,039 | New |
| Silvercrest Asset Management Group LLC | 10,280 | $216.2K | 0.00% | +200+2.0% | Added |
| First Bank & Trust | 10,372 | $218.1K | 0.04% | +10,372 | New |
| Cetera Investment Advisers | 10,591 | $222.7K | 0.00% | −4,777−31.1% | Reduced |
| Oppenheimer & Co Inc | 10,621 | $223.4K | 0.00% | −35,012−76.7% | Reduced |
| BOK Financial Private Wealth, Inc. | 10,807 | $227.3K | 0.02% | −2,408−18.2% | Reduced |
| SFMG, LLC | 10,984 | $231.0K | 0.02% | −6−0.1% | Reduced |
| Renaissance Technologies LLC | 11,000 | $231.3K | 0.00% | −429,500−97.5% | Reduced |
| Boothbay Fund Management, LLC | 11,250 | $236.6K | 0.01% | +11,250 | New |
| Lipe & Dalton | 11,374 | $239.0K | 0.13% | 00.0% | Unchanged |
| Caldwell Investment Management Ltd. | 11,000 | $245.0K | 0.17% | 00.0% | Unchanged |
| Jefferies Financial Group Inc. | 11,830 | $248.8K | 0.00% | +11,830 | New |
| Evoke Wealth, LLC | 12,071 | $253.9K | 0.01% | −225−1.8% | Reduced |
| Red Spruce Capital, LLC | 12,083 | $254.1K | 0.11% | −5,632−31.8% | Reduced |
| Pathstone Holdings, LLC | 12,128 | $255.1K | 0.00% | +12,128 | New |
| CIBC Asset Management Inc | 12,236 | $257.3K | 0.00% | −5,981−32.8% | Reduced |
| DRW Securities, LLC | 12,311 | $258.9K | 0.02% | +12,311 | New |
| Evercore Wealth Management, LLC | 12,399 | $260.8K | 0.00% | −77−0.6% | Reduced |
| Public Employees Retirement Association of Colorado | 12,768 | $269.0K | 0.00% | +12,768 | New |
| SFE Investment Counsel | 12,830 | $269.8K | 0.06% | −24,260−65.4% | Reduced |
| Lido Advisors, LLC | 13,093 | $275.3K | 0.00% | −133−1.0% | Reduced |
| Amundi | 12,908 | $277.4K | 0.00% | +12,908 | New |
| Exchange Traded Concepts, LLC | 13,312 | $280.0K | 0.01% | +6,744+102.7% | Added |
| Cannon Global Investment Management, LLC | 13,500 | $283.9K | 0.70% | +13,500 | New |
| Cahaba Wealth Management, Inc. | 13,643 | $286.9K | 0.02% | 00.0% | Unchanged |
| Shufro Rose & Co LLC | 13,644 | $286.9K | 0.02% | +13,644 | New |
| Brown Advisory Inc | 13,690 | $287.9K | 0.00% | −562−3.9% | Reduced |
| Bokf, NA | 13,032 | $293.4K | 0.00% | −990−7.1% | Reduced |
| Baird Financial Group, Inc. | 14,137 | $297.3K | 0.00% | +193+1.4% | Added |
| Deutsche Bank AG | 14,268 | $300.1K | 0.00% | −919,814−98.5% | Reduced |
| Nomura Holdings Inc | 14,563 | $306.3K | 0.00% | +14,563 | New |
| Chesapeake Asset Management LLC | 14,673 | $308.6K | 0.29% | 00.0% | Unchanged |
| Vident Advisory, LLC | 15,263 | $321.0K | 0.01% | +6,462+73.4% | Added |
| Security National Bank of Sioux City Iowa | 15,269 | $321.1K | 0.22% | +15,269 | New |
| Kennedy Capital Management, Inc. | 15,449 | $324.9K | 0.01% | +15,449 | New |
| National Pension Service | 15,555 | $327.1K | 0.00% | +15,555 | New |
| Mercer Global Advisors Inc | 16,207 | $340.8K | 0.00% | +16,207 | New |
| Paralel Advisors LLC | 16,329 | $343.4K | 0.01% | +1,480+10.0% | Added |
| HighTower Advisors, LLC | 16,553 | $348.1K | 0.00% | −29,350−63.9% | Reduced |
| Canada Pension Plan Investment Board | 16,854 | $354.4K | 0.00% | −171,178−91.0% | Reduced |
| Intrinsic Value Partners, LLC | 16,973 | $356.9K | 0.36% | 00.0% | Unchanged |
| Armstrong Henry H Associates Inc | 17,081 | $359.2K | 0.04% | 00.0% | Unchanged |
| Cambridge Investment Research Advisors, Inc. | 17,136 | $360.0K | 0.00% | −2,599−13.2% | Reduced |
| First Manhattan Co | 17,602 | $370.2K | 0.00% | +17,602 | New |
| Keeley-Teton Advisors, LLC | 17,757 | $373.4K | 0.04% | +17,757 | New |
| Highland Capital Management Fund Advisors, L.P. | 17,995 | $378.4K | 0.04% | +8,655+92.7% | Added |
| Toth Financial Advisory Corp | 18,194 | $382.6K | 0.05% | −30,762−62.8% | Reduced |
| Kirtland Hills Capital Management, LLC | 18,542 | $389.9K | 0.25% | 00.0% | Unchanged |
| Evergreen Capital Management LLC | 18,605 | $391.3K | 0.01% | −46,725−71.5% | Reduced |
| QRG Capital Management, Inc. | 18,678 | $392.8K | 0.00% | −23,095−55.3% | Reduced |
| Mutual of America Capital Management LLC | 18,796 | $395.3K | 0.00% | +18,796 | New |
| Police & Firemen's Retirement System of New Jersey | 18,866 | $396.8K | 0.00% | +18,866 | New |
| Phoenix Holdings Ltd. | 18,932 | $398.1K | 0.01% | +18,932 | New |
| Squarepoint Ops LLC | 18,989 | $399.3K | 0.00% | −20,346−51.7% | Reduced |
| Foundations Investment Advisors, LLC | 19,458 | $409.2K | 0.01% | +19,458 | New |
| Hyperion Capital Advisors LP | 19,563 | $411.4K | 0.21% | +19,563 | New |
| Pictet Asset Management Holding SA | 19,758 | $415.5K | 0.00% | −29,908−60.2% | Reduced |
| Creative Planning | 19,781 | $416.0K | 0.00% | −11,488−36.7% | Reduced |
| Advisor Group Holdings, Inc. | 19,979 | $420.2K | 0.00% | +7,797+64.0% | Added |
| Utah Retirement Systems | 20,585 | $432.9K | 0.00% | 00.0% | Unchanged |
| Neuberger Berman Group LLC | 21,321 | $448.4K | 0.00% | −869,153−97.6% | Reduced |
| Royce & Associates LP | 22,500 | $473.2K | 0.00% | 00.0% | Unchanged |
| Natixis Advisors, L.P. | 23,172 | $487.0K | 0.00% | −177,493−88.5% | Reduced |
| Security National Bank of So Dak | 23,299 | $490.0K | 0.27% | +23,299 | New |
| Quest Partners LLC | 23,780 | $500.1K | 0.07% | −534−2.2% | Reduced |
| Peak Asset Management, LLC | 24,000 | $504.7K | 0.09% | 00.0% | Unchanged |
| Wesbanco Bank Inc | 24,050 | $505.8K | 0.02% | −9,846−29.0% | Reduced |
| Forte Capital LLC | 24,234 | $509.6K | 0.06% | −43,578−64.3% | Reduced |
| Sit Investment Associates Inc | 24,700 | $519.0K | 0.01% | 00.0% | Unchanged |
| Baker Avenue Asset Management, LP | 24,740 | $520.3K | 0.02% | +24,740 | New |
| Alpine Global Management, LLC | 25,000 | $525.8K | 0.15% | +25,000 | New |
| Captrust Financial Advisors | 25,856 | $543.8K | 0.00% | +1,445+5.9% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 26,490 | $557.1K | 0.00% | −768−2.8% | Reduced |
| Jane Street Group, LLC | 27,490 | $578.1K | 0.00% | −29,657−51.9% | Reduced |
| US Bancorp | 27,942 | $587.6K | 0.00% | +27,002+2,872.6% | Added |
| Investment Management Corp of Ontario | 28,214 | $593.3K | 0.02% | +1,158+4.3% | Added |
| Truist Financial Corp | 28,358 | $596.4K | 0.00% | −25,842−47.7% | Reduced |
| Westwood Holdings Group Inc. | 28,890 | $607.6K | 0.00% | +18,183+169.8% | Added |
| Oregon Public Employees Retirement Fund | 29,200 | $614.1K | 0.01% | +18,450+171.6% | Added |
| Clifford Swan Investment Counsel LLC | 29,430 | $618.9K | 0.02% | −26,120−47.0% | Reduced |
| The PNC Financial Services Group, Inc. | 29,748 | $625.6K | 0.00% | −13,574−31.3% | Reduced |
| Murchinson Ltd. | 30,000 | $630.9K | 0.28% | +30,000 | New |
| Weiss Asset Management LP | 30,031 | $631.6K | 0.01% | +30,031 | New |
| Berger Financial Group, Inc | 30,158 | $634.2K | 0.04% | −4,762−13.6% | Reduced |
| ProShare Advisors LLC | 31,054 | $653.1K | 0.00% | +13,932+81.4% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 32,165 | $676.4K | 0.00% | +32,165 | New |
| Bryn Mawr Trust Co | 32,259 | $678.4K | 0.01% | +7,769+31.7% | Added |
| Commonwealth Equity Services, LLC | 32,580 | $685.0K | 0.00% | −47,218−59.2% | Reduced |
| Walleye Trading LLC | 32,772 | $689.2K | 0.01% | +32,772 | New |
| Country Club Bank | 32,594 | $726.8K | 0.05% | +32,594 | New |
| Nisa Investment Advisors, LLC | 34,999 | $736.0K | 0.00% | −788−2.2% | Reduced |
| Modera Wealth Management, LLC | 35,191 | $740.1K | 0.01% | −5,352−13.2% | Reduced |
| Marco Investment Management LLC | 35,975 | $756.6K | 0.07% | −2,310−6.0% | Reduced |