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 |
|---|---|---|---|---|---|
| Hanson & Doremus Investment Management | 303 | $6.00K | 0.00% | 00.0% | Unchanged |
| Cromwell Holdings LLC | 291 | $6.12K | 0.00% | −32−9.9% | Reduced |
| TD Private Client Wealth LLC | 304 | $6.39K | 0.00% | −5,274−94.6% | Reduced |
| LRI Investments, LLC | 313 | $6.58K | 0.00% | 00.0% | Unchanged |
| Murphy & Mullick Capital Management Corp | 352 | $7.40K | 0.01% | +352 | New |
| Massmutual Trust Co FSB | 363 | $7.63K | 0.00% | −17,467−98.0% | Reduced |
| Atlas Capital Advisors LLC | 370 | $7.78K | 0.00% | −463−55.6% | Reduced |
| Transce3nd, LLC | 396 | $8.33K | 0.00% | +396 | New |
| Beacon Capital Management, LLC | 424 | $8.92K | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 406 | $9.00K | 0.01% | +76+23.0% | Added |
| Parvin Asset Management, LLC | 431 | $9.06K | 0.01% | +431 | New |
| Ronald Blue Trust, Inc. | 432 | $9.09K | 0.00% | +432 | New |
| Wingate Wealth Advisors, Inc. | 434 | $9.13K | 0.01% | +434 | New |
| CoreCap Advisors, LLC | 439 | $9.23K | 0.00% | +439 | New |
| Smartleaf Asset Management LLC | 425 | $9.48K | 0.00% | +425 | New |
| BankPlus Trust Department | 464 | $9.76K | 0.00% | +464 | New |
| Global Wealth Strategies & Associates | 465 | $9.78K | 0.00% | +465 | New |
| FNY Investment Advisers, LLC | 500 | $10.0K | 0.01% | +500 | New |
| Ransom Advisory, Ltd | 500 | $10.5K | 0.00% | 00.0% | Unchanged |
| Optimum Investment Advisors | 501 | $10.5K | 0.00% | 00.0% | Unchanged |
| Proequities, Inc. | 471 | $10.9K | 0.00% | −1,068−69.4% | Reduced |
| Clearstead Advisors, LLC | 535 | $11.3K | 0.00% | −5,802−91.6% | Reduced |
| Winch Advisory Services, LLC | 540 | $11.4K | 0.00% | 00.0% | Unchanged |
| Evolution Advisers, Inc. | 600 | $12.0K | 0.01% | 00.0% | Unchanged |
| Natixis | 578 | $12.2K | 0.00% | +578 | New |
| Evermay Wealth Management LLC | 600 | $12.6K | 0.00% | −1,380−69.7% | Reduced |
| TD Waterhouse Canada Inc. | 603 | $12.7K | 0.00% | +603 | New |
| Private Trust Co NA | 628 | $13.2K | 0.00% | +628 | New |
| Nomura Asset Management Co Ltd | 650 | $13.7K | 0.00% | −1,736−72.8% | Reduced |
| North Star Investment Management Corp. | 650 | $13.7K | 0.00% | 00.0% | Unchanged |
| First Command Advisory Services, Inc. | 656 | $13.8K | 0.00% | +656 | New |
| GWM Advisors LLC | 667 | $14.0K | 0.00% | +509+322.2% | Added |
| Bartlett & Co. Wealth Management LLC | 682 | $14.3K | 0.00% | 00.0% | Unchanged |
| Ramirez Asset Management, Inc. | 700 | $14.7K | 0.00% | 00.0% | Unchanged |
| Mendota Financial Group, LLC | 731 | $15.4K | 0.01% | −18−2.4% | Reduced |
| Vista Private Wealth Partners. LLC | 750 | $15.8K | 0.01% | 00.0% | Unchanged |
| Quent Capital, LLC | 789 | $16.6K | 0.00% | +789 | New |
| Tower Research Capital LLC (TRC) | 790 | $16.6K | 0.00% | −3,933−83.3% | Reduced |
| Menard Financial Group LLC | 798 | $16.8K | 0.01% | +798 | New |
| Signaturefd, LLC | 848 | $17.8K | 0.00% | −165−16.3% | Reduced |
| SRS Capital Advisors, Inc. | 849 | $17.9K | 0.00% | −29−3.3% | Reduced |
| Crews Bank & Trust | 852 | $17.9K | 0.00% | +852 | New |
| R Squared Ltd | 900 | $18.9K | 0.02% | +900 | New |
| Glen Eagle Advisors, LLC | 915 | $19.2K | 0.00% | −168−15.5% | Reduced |
| Anchor Investment Management, LLC | 925 | $19.5K | 0.00% | −68−6.8% | Reduced |
| Studio Investment Management LLC | 948 | $19.9K | 0.00% | −366−27.9% | Reduced |
| Federated Hermes, Inc. | 949 | $20.0K | 0.00% | −49,884−98.1% | Reduced |
| Mechanics Financial Corp | 972 | $20.4K | 0.01% | +972 | New |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 1,011 | $21.3K | 0.00% | +145+16.7% | Added |
| Whittier Trust Co of Nevada Inc | 1,023 | $21.5K | 0.00% | +1,023 | New |
| Spire Wealth Management | 1,039 | $21.9K | 0.00% | +1,039 | New |
| Bessemer Group Inc | 1,095 | $23.0K | 0.00% | −353−24.4% | Reduced |
| Centerpoint Advisors, LLC | 1,151 | $24.0K | 0.01% | −103−8.2% | Reduced |
| HM Payson & Co | 1,179 | $24.8K | 0.00% | −1−0.1% | Reduced |
| Manchester Capital Management LLC | 1,300 | $27.3K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 1,370 | $28.8K | 0.00% | −115−7.7% | Reduced |
| Harbor Capital Advisors, Inc. | 1,380 | $29.0K | 0.00% | +32+2.4% | Added |
| Huntington National Bank | 1,438 | $30.2K | 0.00% | +1,438 | New |
| Wiser Advisor Group LLC | 1,459 | $30.7K | 0.04% | −65−4.3% | Reduced |
| Parallel Advisors, LLC | 1,584 | $33.3K | 0.00% | +841+113.2% | Added |
| IFP Advisors, Inc | 1,532 | $34.7K | 0.00% | +833+119.2% | Added |
| Asset Planning,Inc | 1,690 | $35.5K | 0.03% | +1,690 | New |
| Horizon Investments, LLC | 1,712 | $36.0K | 0.00% | +1,712 | New |
| GAMMA Investing LLC | 1,754 | $36.9K | 0.00% | +1,349+333.1% | Added |
| Brown Brothers Harriman & Co | 1,801 | $37.9K | 0.00% | −7−0.4% | Reduced |
| Plante Moran Financial Advisors, LLC | 1,876 | $39.5K | 0.00% | 00.0% | Unchanged |
| Pinnacle Bancorp, Inc. | 1,974 | $41.5K | 0.01% | +1,947+7,211.1% | Added |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 2,050 | $44.1K | 0.00% | −42−2.0% | Reduced |
| Federation des caisses Desjardins du Quebec | 2,140 | $45.0K | 0.00% | +605+39.4% | Added |
| National Bank of Canada | 2,200 | $46.3K | 0.00% | +2,193+31,328.6% | Added |
| Ameliora Wealth Management Ltd. | 2,224 | $46.8K | 0.02% | +2,134+2,371.1% | Added |
| MetLife Investment Management | 2,281 | $48.0K | 0.00% | −30,265−93.0% | Reduced |
| Farther Finance Advisors, LLC | 2,472 | $52.0K | 0.00% | +2,472 | New |
| Hilltop National Bank | 2,554 | $53.7K | 0.02% | +2,554 | New |
| Shell Asset Management Co | 2,684 | $56.0K | 0.00% | −211−7.3% | Reduced |
| Point72 Asia (Singapore) Pte. Ltd. | 2,748 | $57.8K | 0.02% | +2,178+382.1% | Added |
| State of Wyoming | 2,756 | $58.0K | 0.01% | +833+43.3% | Added |
| NBT Bank N A | 3,001 | $63.1K | 0.00% | +3,001 | New |
| Northwestern Mutual Wealth Management Co | 3,465 | $72.9K | 0.00% | +3,465 | New |
| Steward Partners Investment Advisory, LLC | 3,473 | $73.0K | 0.00% | −918−20.9% | Reduced |
| Caldwell Trust Co | 3,478 | $73.1K | 0.01% | +3,478 | New |
| Sandy Spring Bank | 3,581 | $75.3K | 0.00% | −6,275−63.7% | Reduced |
| Bank of Jackson Hole Trust | 3,765 | $79.2K | 0.05% | +3,765 | New |
| EverSource Wealth Advisors, LLC | 3,978 | $83.7K | 0.00% | +730+22.5% | Added |
| Eastern Bank | 4,102 | $86.3K | 0.00% | −99,013−96.0% | Reduced |
| Fifth Third Bancorp | 4,126 | $86.8K | 0.00% | +425+11.5% | Added |
| Central Trust Co | 4,142 | $87.1K | 0.00% | −8,244−66.6% | Reduced |
| Whittier Trust Co | 4,518 | $95.0K | 0.00% | +4,518 | New |
| MAI Capital Management | 4,601 | $96.8K | 0.00% | +4,601 | New |
| Macquarie Group Ltd | 4,684 | $98.2K | 0.00% | −1,848,196−99.7% | Reduced |
| Corebridge Financial, Inc. | 5,278 | $111.0K | 0.00% | −25,806−83.0% | Reduced |
| CWM, LLC | 5,378 | $113.0K | 0.00% | −4,568−45.9% | Reduced |
| KBC Group NV | 6,421 | $135.0K | 0.00% | −6,415−50.0% | Reduced |
| American National Bank | 6,488 | $136.4K | 0.02% | +6,488 | New |
| Y.D. More Investments Ltd | 6,790 | $142.7K | 0.01% | +6,790 | New |
| Smithfield Trust Co | 7,476 | $155.0K | 0.01% | +7,476 | New |
| Sterling Capital Management LLC | 7,475 | $157.2K | 0.00% | −85,755−92.0% | Reduced |
| CIBC Private Wealth Group, LLC | 7,639 | $164.2K | 0.00% | +675+9.7% | Added |
| Allworth Financial LP | 7,133 | $164.9K | 0.00% | +2,795+64.4% | Added |
| Umb Bank N A | 8,096 | $170.3K | 0.00% | +8,096 | New |