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, Q1 2025
Institutional positions in Amentum Holdings, Inc. as of Mar 31, 2025. 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
- 418
- −22 vs. Q4 2024
- Shares held
- 191.7M
- +26.8M (+16.3%) vs. Q4 2024
- Total value
- $3.49B
- +$18.2M (+0.5%) vs. Q4 2024
- New holders
- 73
- 112 more added
- Sold out
- 95
- 151 more reduced
11 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2025
Shares, value and share of portfolio for each institution holding Amentum Holdings, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Atlas Capital Advisors LLC | 370 | $6.73K | 0.00% | 00.0% | Unchanged |
| BankPlus Trust Department | 398 | $7.24K | 0.00% | −66−14.2% | Reduced |
| Y.D. More Investments Ltd | 424 | $7.69K | 0.00% | −6,366−93.8% | Reduced |
| Beacon Capital Management, LLC | 424 | $7.72K | 0.00% | 00.0% | Unchanged |
| Clearstead Advisors, LLC | 427 | $7.77K | 0.00% | −108−20.2% | Reduced |
| Ronald Blue Trust, Inc. | 447 | $8.14K | 0.00% | +15+3.5% | Added |
| Global Wealth Strategies & Associates | 465 | $8.46K | 0.00% | 00.0% | Unchanged |
| Bartlett & Co. Wealth Management LLC | 466 | $8.48K | 0.00% | −216−31.7% | Reduced |
| Mendota Financial Group, LLC | 480 | $8.74K | 0.01% | −251−34.3% | Reduced |
| Mather Group, LLC. | 487 | $8.86K | 0.00% | +231+90.2% | Added |
| N.E.W. Advisory Services LLC | 490 | $8.92K | 0.00% | +490 | New |
| Ransom Advisory, Ltd | 500 | $9.10K | 0.00% | 00.0% | Unchanged |
| Optimum Investment Advisors | 501 | $9.12K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 515 | $9.37K | 0.00% | +396+332.8% | Added |
| Anchor Investment Management, LLC | 525 | $9.55K | 0.00% | −400−43.2% | Reduced |
| TD Waterhouse Canada Inc. | 535 | $9.55K | 0.00% | −68−11.3% | Reduced |
| Winch Advisory Services, LLC | 540 | $9.83K | 0.00% | 00.0% | Unchanged |
| Evolution Advisers, Inc. | 600 | $10.0K | 0.01% | 00.0% | Unchanged |
| Chesapeake Asset Management LLC | 550 | $10.0K | 0.01% | −14,123−96.3% | Reduced |
| GWM Advisors LLC | 565 | $10.3K | 0.00% | −102−15.3% | Reduced |
| Northwestern Mutual Wealth Management Co | 585 | $10.6K | 0.00% | −2,880−83.1% | Reduced |
| IFP Advisors, Inc | 476 | $10.8K | 0.00% | −1,056−68.9% | Reduced |
| Evermay Wealth Management LLC | 600 | $10.9K | 0.00% | 00.0% | Unchanged |
| CX Institutional | 613 | $11.0K | 0.00% | +613 | New |
| Private Trust Co NA | 621 | $11.3K | 0.00% | −7−1.1% | Reduced |
| First Command Advisory Services, Inc. | 656 | $11.9K | 0.00% | 00.0% | Unchanged |
| Boston Private Wealth LLC | 669 | $12.2K | 0.00% | +669 | New |
| NBT Bank N A | 775 | $14.1K | 0.00% | −2,226−74.2% | Reduced |
| Quent Capital, LLC | 789 | $14.4K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 834 | $15.2K | 0.00% | −15−1.8% | Reduced |
| Crews Bank & Trust | 852 | $15.5K | 0.00% | 00.0% | Unchanged |
| Spire Wealth Management | 987 | $18.0K | 0.00% | −52−5.0% | Reduced |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 1,011 | $18.4K | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co of Nevada Inc | 1,020 | $18.6K | 0.00% | −3−0.3% | Reduced |
| Pinnacle Bancorp, Inc. | 1,086 | $19.8K | 0.01% | −888−45.0% | Reduced |
| Eastern Bank | 1,095 | $19.9K | 0.00% | −3,007−73.3% | Reduced |
| Bessemer Group Inc | 1,076 | $20.0K | 0.00% | −19−1.7% | Reduced |
| Brown Brothers Harriman & Co | 1,100 | $20.0K | 0.00% | −701−38.9% | Reduced |
| Contravisory Investment Management, Inc. | 1,150 | $20.9K | 0.00% | +1,150 | New |
| HM Payson & Co | 1,179 | $21.5K | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 1,240 | $22.6K | 0.00% | −960−43.6% | Reduced |
| Bank of Jackson Hole Trust | 1,169 | $23.0K | 0.01% | −2,596−69.0% | Reduced |
| Huntington National Bank | 1,267 | $23.1K | 0.00% | −171−11.9% | Reduced |
| Manchester Capital Management LLC | 1,327 | $24.2K | 0.00% | +27+2.1% | Added |
| Toronto Dominion Bank | 1,338 | $24.4K | 0.00% | −8,662−86.6% | Reduced |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 1,350 | $24.6K | 0.01% | +1,300+2,600.0% | Added |
| Nomura Asset Management Co Ltd | 1,400 | $25.5K | 0.00% | +750+115.4% | Added |
| Parallel Advisors, LLC | 1,416 | $25.8K | 0.00% | −168−10.6% | Reduced |
| Tower Research Capital LLC (TRC) | 1,543 | $28.1K | 0.00% | +753+95.3% | Added |
| Quarry LP | 1,670 | $30.4K | 0.01% | +1,670 | New |
| Asset Planning,Inc | 1,690 | $30.8K | 0.02% | 00.0% | Unchanged |
| Signaturefd, LLC | 1,764 | $32.1K | 0.00% | +916+108.0% | Added |
| Federation des caisses Desjardins du Quebec | 1,797 | $32.7K | 0.00% | −343−16.0% | Reduced |
| Central Trust Co | 1,822 | $33.2K | 0.00% | −2,320−56.0% | Reduced |
| Plante Moran Financial Advisors, LLC | 1,876 | $34.1K | 0.00% | 00.0% | Unchanged |
| Coldstream Capital Management Inc | 1,941 | $35.3K | 0.00% | +1,941 | New |
| Sandy Spring Bank | 2,004 | $36.5K | 0.00% | −1,577−44.0% | Reduced |
| Caldwell Trust Co | 2,018 | $36.7K | 0.00% | −1,460−42.0% | Reduced |
| Fifth Third Bancorp | 2,195 | $39.9K | 0.00% | −1,931−46.8% | Reduced |
| Covestor Ltd | 2,199 | $40.0K | 0.03% | +1,793+441.6% | Added |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 2,050 | $40.5K | 0.00% | 00.0% | Unchanged |
| FNY Investment Advisers, LLC | 2,400 | $43.0K | 0.03% | +1,900+380.0% | Added |
| Steward Partners Investment Advisory, LLC | 2,398 | $43.6K | 0.00% | −1,075−31.0% | Reduced |
| MetLife Investment Management | 2,663 | $48.5K | 0.00% | +382+16.7% | Added |
| Farther Finance Advisors, LLC | 2,954 | $52.8K | 0.00% | +482+19.5% | Added |
| GAMMA Investing LLC | 3,137 | $57.1K | 0.00% | +1,383+78.8% | Added |
| EverSource Wealth Advisors, LLC | 3,666 | $66.7K | 0.00% | −312−7.8% | Reduced |
| Umb Bank N A | 3,691 | $67.2K | 0.00% | −4,405−54.4% | Reduced |
| MAI Capital Management | 3,791 | $69.0K | 0.00% | −810−17.6% | Reduced |
| CIBC Private Wealth Group, LLC | 4,603 | $75.6K | 0.00% | −3,036−39.7% | Reduced |
| Whittier Trust Co | 4,266 | $77.6K | 0.00% | −252−5.6% | Reduced |
| CWM, LLC | 4,334 | $79.0K | 0.00% | −1,044−19.4% | Reduced |
| Corebridge Financial, Inc. | 5,630 | $102.5K | 0.00% | +352+6.7% | Added |
| Fortress Investment Group LLC | 6,287 | $114.4K | 0.02% | +6,287 | New |
| American National Bank | 6,400 | $116.5K | 0.01% | −88−1.4% | Reduced |
| Legacy Bridge, LLC | 6,680 | $121.6K | 0.07% | −1,539−18.7% | Reduced |
| Intact Investment Management Inc. | 6,900 | $125.6K | 0.00% | −2,900−29.6% | Reduced |
| KBC Group NV | 7,339 | $134.0K | 0.00% | +918+14.3% | Added |
| Washington Trust Co | 7,541 | $137.2K | 0.01% | −1,587−17.4% | Reduced |
| Smithfield Trust Co | 7,856 | $141.0K | 0.01% | +380+5.1% | Added |
| Toth Financial Advisory Corp | 8,024 | $146.0K | 0.02% | −10,170−55.9% | Reduced |
| Sterling Capital Management LLC | 8,235 | $149.9K | 0.00% | +760+10.2% | Added |
| Allworth Financial LP | 8,266 | $179.2K | 0.00% | +1,133+15.9% | Added |
| Silvercrest Asset Management Group LLC | 10,000 | $182.0K | 0.00% | −280−2.7% | Reduced |
| Tudor Investment Corp Et Al | 10,046 | $182.8K | 0.00% | +10,046 | New |
| Kentucky Retirement Systems | 10,112 | $184.0K | 0.01% | +10,112 | New |
| Lido Advisors, LLC | 10,396 | $189.2K | 0.00% | −2,697−20.6% | Reduced |
| Lecap Asset Management Ltd | 10,437 | $190.0K | 0.04% | +10,437 | New |
| Virginia Retirement Systems Et Al | 10,700 | $194.7K | 0.00% | +10,700 | New |
| Red Spruce Capital, LLC | 10,705 | $194.8K | 0.09% | −1,378−11.4% | Reduced |
| Caldwell Investment Management Ltd. | 11,000 | $197.5K | 0.15% | 00.0% | Unchanged |
| SFMG, LLC | 10,984 | $199.9K | 0.02% | 00.0% | Unchanged |
| Prelude Capital Management, LLC | 11,360 | $206.8K | 0.02% | +11,360 | New |
| Lipe & Dalton | 11,374 | $207.0K | 0.12% | 00.0% | Unchanged |
| Leavell Investment Management, Inc. | 11,614 | $211.4K | 0.01% | +11,614 | New |
| Brown Advisory Inc | 11,665 | $212.3K | 0.00% | −2,025−14.8% | Reduced |
| Quadrant Capital Group LLC | 11,669 | $212.4K | 0.01% | +11,545+9,310.5% | Added |
| BOK Financial Private Wealth, Inc. | 11,712 | $213.2K | 0.02% | +905+8.4% | Added |
| One68 Global Capital, LLC | 12,000 | $218.4K | 0.11% | +12,000 | New |
| Evoke Wealth, LLC | 12,235 | $222.7K | 0.01% | +164+1.4% | Added |