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.
| 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, Q3 2024
Shares, value and share of portfolio for each institution holding Amentum Holdings, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Running Oak Capital LLC | 23,805 | $767.7K | 0.10% | +23,805 | New |
| IFM Investors Pty Ltd | 22,603 | $728.9K | 0.01% | +22,603 | New |
| Royce & Associates LP | 22,500 | $725.6K | 0.01% | +22,500 | New |
| Occidental Asset Management, LLC | 22,426 | $723.2K | 0.12% | +22,426 | New |
| State of Alaska, Department of Revenue | 21,767 | $701.0K | 0.01% | +21,767 | New |
| Brevan Howard Capital Management LP | 21,049 | $678.8K | 0.03% | +21,049 | New |
| Pine Valley Investments Ltd Liability Co | 20,993 | $677.0K | 0.05% | +20,993 | New |
| Utah Retirement Systems | 20,585 | $663.9K | 0.01% | +20,585 | New |
| Ninety One SA (PTY) Ltd | 19,965 | $643.9K | 0.14% | +19,965 | New |
| Cambridge Investment Research Advisors, Inc. | 19,735 | $636.0K | 0.00% | +19,735 | New |
| Tredje AP-fonden | 19,626 | $632.9K | 0.01% | +19,626 | New |
| Cushing Asset Management, LP | 19,000 | $612.8K | 0.05% | +19,000 | New |
| Stonegate Investment Group, LLC | 18,844 | $607.7K | 0.02% | +18,844 | New |
| Kirtland Hills Capital Management, LLC | 18,542 | $598.0K | 0.33% | +18,542 | New |
| CIBC Asset Management Inc | 18,217 | $587.5K | 0.00% | +18,217 | New |
| Massmutual Trust Co FSB | 17,830 | $575.0K | 0.02% | +17,830 | New |
| Red Spruce Capital, LLC | 17,715 | $571.3K | 0.26% | +17,715 | New |
| Twin Capital Management Inc | 17,608 | $567.9K | 0.06% | +17,608 | New |
| Greenwood Capital Associates LLC | 17,360 | $559.9K | 0.07% | +17,360 | New |
| ProShare Advisors LLC | 17,122 | $552.2K | 0.00% | +17,122 | New |
| Armstrong Henry H Associates Inc | 17,081 | $550.9K | 0.05% | +17,081 | New |
| Intrinsic Value Partners, LLC | 16,973 | $547.4K | 0.55% | +16,973 | New |
| Legato Capital Management LLC | 16,923 | $545.8K | 0.07% | +16,923 | New |
| New York Life Investment Management LLC | 16,663 | $537.4K | 0.01% | +16,663 | New |
| Ionic Capital Management LLC | 16,622 | $536.1K | 0.32% | +16,622 | New |
| Xponance, Inc. | 16,454 | $530.6K | 0.01% | +16,454 | New |
| Westover Capital Advisors, LLC | 15,712 | $506.7K | 0.10% | +15,712 | New |
| Bank of Nova Scotia | 15,667 | $505.3K | 0.00% | +15,667 | New |
| Garrett Investment Advisors LLC | 15,646 | $504.6K | 0.05% | +15,646 | New |
| STRS Ohio | 15,634 | $504.2K | 0.00% | +15,634 | New |
| TCW Group Inc | 15,569 | $502.1K | 0.00% | +15,569 | New |
| A. D. Beadell Investment Counsel, Inc. | 15,580 | $502.0K | 0.40% | +15,580 | New |
| Cetera Investment Advisers | 15,368 | $495.6K | 0.00% | +15,368 | New |
| ING Groep NV | 16,746 | $495.0K | 0.00% | +16,746 | New |
| Savant Capital, LLC | 15,278 | $492.7K | 0.00% | +15,278 | New |
| Strategic Advisors LLC | 15,145 | $488.4K | 0.09% | +15,145 | New |
| Nissay Asset Management Corp | 15,092 | $486.7K | 0.00% | +15,092 | New |
| Paralel Advisors LLC | 14,849 | $478.9K | 0.02% | +14,849 | New |
| Atria Investments LLC | 14,821 | $478.0K | 0.01% | +14,821 | New |
| Chesapeake Asset Management LLC | 14,673 | $473.2K | 0.41% | +14,673 | New |
| Envestnet Portfolio Solutions, Inc. | 14,491 | $467.3K | 0.00% | +14,491 | New |
| Yousif Capital Management, LLC | 14,479 | $466.9K | 0.01% | +14,479 | New |
| Man Group plc | 14,475 | $466.8K | 0.00% | +14,475 | New |
| Brown Advisory Inc | 14,252 | $459.6K | 0.00% | +14,252 | New |
| Nebula Research & Development LLC | 14,246 | $459.4K | 0.05% | +14,246 | New |
| Swiss Life Asset Management Ltd | 16,362 | $452.6K | 0.01% | +16,362 | New |
| Baird Financial Group, Inc. | 13,944 | $449.7K | 0.00% | +13,944 | New |
| MML Investors Services, LLC | 13,923 | $449.0K | 0.00% | +13,923 | New |
| Hilton Capital Management, LLC | 13,738 | $443.1K | 0.03% | +13,738 | New |
| Cahaba Wealth Management, Inc. | 13,643 | $440.0K | 0.04% | +13,643 | New |
| Private Advisor Group, LLC | 13,435 | $433.3K | 0.00% | +13,435 | New |
| Diametric Capital, LP | 13,352 | $430.6K | 0.21% | +13,352 | New |
| Lido Advisors, LLC | 13,226 | $426.5K | 0.00% | +13,226 | New |
| BOK Financial Private Wealth, Inc. | 13,215 | $426.2K | 0.03% | +13,215 | New |
| Signature Estate & Investment Advisors LLC | 13,055 | $421.0K | 0.01% | +13,055 | New |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 12,850 | $414.4K | 0.00% | +12,850 | New |
| KBC Group NV | 12,836 | $414.0K | 0.00% | +12,836 | New |
| Evercore Wealth Management, LLC | 12,476 | $402.4K | 0.01% | +12,476 | New |
| Central Trust Co | 12,386 | $399.4K | 0.01% | +12,386 | New |
| Evoke Wealth, LLC | 12,296 | $396.5K | 0.01% | +12,296 | New |
| Advisor Group Holdings, Inc. | 12,182 | $392.9K | 0.00% | +12,182 | New |
| Cresset Asset Management, LLC | 11,700 | $377.3K | 0.00% | +11,700 | New |
| KCM Investment Advisors LLC | 11,441 | $369.0K | 0.01% | +11,441 | New |
| Lipe & Dalton | 11,374 | $367.0K | 0.19% | +11,374 | New |
| Bokf, NA | 14,022 | $356.2K | 0.01% | +14,022 | New |
| SFMG, LLC | 10,990 | $354.4K | 0.03% | +10,990 | New |
| Brinker Capital Investments, LLC | 10,922 | $352.2K | 0.00% | +10,922 | New |
| Orion Portfolio Solutions, LLC | 10,922 | $352.2K | 0.00% | +10,922 | New |
| Oregon Public Employees Retirement Fund | 10,750 | $346.7K | 0.01% | +10,750 | New |
| Westwood Holdings Group Inc. | 10,707 | $345.3K | 0.00% | +10,707 | New |
| Aberdeen Wealth Management LLC | 10,582 | $341.3K | 0.22% | +10,582 | New |
| Rafferty Asset Management, LLC | 10,498 | $338.6K | 0.00% | +10,498 | New |
| Keebeck Wealth Management, LLC | 10,297 | $332.1K | 0.05% | +10,297 | New |
| CBOE Vest Financial, LLC | 10,115 | $326.2K | 0.01% | +10,115 | New |
| Silvercrest Asset Management Group LLC | 10,080 | $325.1K | 0.00% | +10,080 | New |
| Magnetar Financial LLC | 10,073 | $324.9K | 0.01% | +10,073 | New |
| Needham Investment Management LLC | 10,000 | $322.5K | 0.02% | +10,000 | New |
| CWM, LLC | 9,946 | $321.0K | 0.00% | +9,946 | New |
| Sandy Spring Bank | 9,856 | $317.9K | 0.01% | +9,856 | New |
| CIBC World Markets Corp | 9,718 | $313.4K | 0.00% | +9,718 | New |
| Stratos Wealth Partners, LTD. | 9,591 | $309.3K | 0.00% | +9,591 | New |
| Heritage Family Offices, LLP | 9,544 | $307.8K | 0.16% | +9,544 | New |
| Pacer Advisors, Inc. | 9,379 | $302.5K | 0.00% | +9,379 | New |
| Illinois Municipal Retirement Fund | 9,345 | $301.4K | 0.00% | +9,345 | New |
| FRG Family Wealth Advisors LLC | 9,315 | $300.4K | 0.05% | +9,315 | New |
| Ontario Teachers Pension Plan Board | 9,254 | $298.4K | 0.00% | +9,254 | New |
| Baldwin Investment Management, LLC | 9,215 | $297.2K | 0.04% | +9,215 | New |
| GYL Financial Synergies, LLC | 9,029 | $291.2K | 0.02% | +9,029 | New |
| Wealthfront Advisers LLC | 9,024 | $291.0K | 0.00% | +9,024 | New |
| Kentucky Retirement Systems | 8,906 | $287.2K | 0.01% | +8,906 | New |
| Pettee Investors, Inc. | 8,835 | $284.9K | 0.14% | +8,835 | New |
| Coastline Trust Co | 8,805 | $284.0K | 0.03% | +8,805 | New |
| Vident Advisory, LLC | 8,801 | $283.8K | 0.01% | +8,801 | New |
| Independent Advisor Alliance | 8,780 | $283.2K | 0.01% | +8,780 | New |
| Allianz Asset Management GmbH | 8,772 | $282.9K | 0.00% | +8,772 | New |
| Stratos Wealth Advisors, LLC | 8,758 | $282.5K | 0.01% | +8,758 | New |
| Caldwell Investment Management Ltd. | 11,000 | $282.2K | 0.20% | +11,000 | New |
| Rothschild Investment LLC | 8,510 | $274.4K | 0.02% | +8,510 | New |
| Legacy Bridge, LLC | 8,219 | $265.1K | 0.14% | +8,219 | New |
| Kestra Advisory Services, LLC | 8,149 | $262.8K | 0.00% | +8,149 | New |