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 |
|---|---|---|---|---|---|
| First Manhattan Co | 17,602 | $370.2K | 0.00% | +17,602 | New |
| Cambridge Investment Research Advisors, Inc. | 17,136 | $360.0K | 0.00% | −2,599−13.2% | Reduced |
| Armstrong Henry H Associates Inc | 17,081 | $359.2K | 0.04% | 00.0% | Unchanged |
| Intrinsic Value Partners, LLC | 16,973 | $356.9K | 0.36% | 00.0% | Unchanged |
| Canada Pension Plan Investment Board | 16,854 | $354.4K | 0.00% | −171,178−91.0% | Reduced |
| HighTower Advisors, LLC | 16,553 | $348.1K | 0.00% | −29,350−63.9% | Reduced |
| Paralel Advisors LLC | 16,329 | $343.4K | 0.01% | +1,480+10.0% | Added |
| Mercer Global Advisors Inc | 16,207 | $340.8K | 0.00% | +16,207 | New |
| National Pension Service | 15,555 | $327.1K | 0.00% | +15,555 | New |
| Kennedy Capital Management, Inc. | 15,449 | $324.9K | 0.01% | +15,449 | New |
| Security National Bank of Sioux City Iowa | 15,269 | $321.1K | 0.22% | +15,269 | New |
| Vident Advisory, LLC | 15,263 | $321.0K | 0.01% | +6,462+73.4% | Added |
| Chesapeake Asset Management LLC | 14,673 | $308.6K | 0.29% | 00.0% | Unchanged |
| Nomura Holdings Inc | 14,563 | $306.3K | 0.00% | +14,563 | New |
| Deutsche Bank AG | 14,268 | $300.1K | 0.00% | −919,814−98.5% | Reduced |
| Baird Financial Group, Inc. | 14,137 | $297.3K | 0.00% | +193+1.4% | Added |
| Bokf, NA | 13,032 | $293.4K | 0.00% | −990−7.1% | Reduced |
| Brown Advisory Inc | 13,690 | $287.9K | 0.00% | −562−3.9% | Reduced |
| Shufro Rose & Co LLC | 13,644 | $286.9K | 0.02% | +13,644 | New |
| Cahaba Wealth Management, Inc. | 13,643 | $286.9K | 0.02% | 00.0% | Unchanged |
| Cannon Global Investment Management, LLC | 13,500 | $283.9K | 0.70% | +13,500 | New |
| Exchange Traded Concepts, LLC | 13,312 | $280.0K | 0.01% | +6,744+102.7% | Added |
| Amundi | 12,908 | $277.4K | 0.00% | +12,908 | New |
| Lido Advisors, LLC | 13,093 | $275.3K | 0.00% | −133−1.0% | Reduced |
| SFE Investment Counsel | 12,830 | $269.8K | 0.06% | −24,260−65.4% | Reduced |
| Public Employees Retirement Association of Colorado | 12,768 | $269.0K | 0.00% | +12,768 | New |
| Evercore Wealth Management, LLC | 12,399 | $260.8K | 0.00% | −77−0.6% | Reduced |
| DRW Securities, LLC | 12,311 | $258.9K | 0.02% | +12,311 | New |
| CIBC Asset Management Inc | 12,236 | $257.3K | 0.00% | −5,981−32.8% | Reduced |
| Pathstone Holdings, LLC | 12,128 | $255.1K | 0.00% | +12,128 | New |
| Red Spruce Capital, LLC | 12,083 | $254.1K | 0.11% | −5,632−31.8% | Reduced |
| Evoke Wealth, LLC | 12,071 | $253.9K | 0.01% | −225−1.8% | Reduced |
| Jefferies Financial Group Inc. | 11,830 | $248.8K | 0.00% | +11,830 | New |
| Caldwell Investment Management Ltd. | 11,000 | $245.0K | 0.17% | 00.0% | Unchanged |
| Lipe & Dalton | 11,374 | $239.0K | 0.13% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 11,250 | $236.6K | 0.01% | +11,250 | New |
| Renaissance Technologies LLC | 11,000 | $231.3K | 0.00% | −429,500−97.5% | Reduced |
| SFMG, LLC | 10,984 | $231.0K | 0.02% | −6−0.1% | Reduced |
| BOK Financial Private Wealth, Inc. | 10,807 | $227.3K | 0.02% | −2,408−18.2% | Reduced |
| Oppenheimer & Co Inc | 10,621 | $223.4K | 0.00% | −35,012−76.7% | Reduced |
| Cetera Investment Advisers | 10,591 | $222.7K | 0.00% | −4,777−31.1% | Reduced |
| First Bank & Trust | 10,372 | $218.1K | 0.04% | +10,372 | New |
| Silvercrest Asset Management Group LLC | 10,280 | $216.2K | 0.00% | +200+2.0% | Added |
| Janney Capital Management LLC | 10,039 | $211.0K | 0.01% | +10,039 | New |
| Toronto Dominion Bank | 10,000 | $210.3K | 0.00% | −36,923−78.7% | Reduced |
| Pekin Hardy Strauss, Inc. | 9,900 | $208.2K | 0.03% | +9,900 | New |
| Intact Investment Management Inc. | 9,800 | $206.1K | 0.01% | +5,440+124.8% | Added |
| Fifth Lane Capital, LP | 9,775 | $205.6K | 0.60% | +9,775 | New |
| JustInvest LLC | 9,651 | $203.0K | 0.00% | +9,651 | New |
| Washington Trust Co | 9,128 | $192.0K | 0.01% | +9,128 | New |
| Legacy Bridge, LLC | 8,219 | $172.8K | 0.09% | 00.0% | Unchanged |
| Umb Bank N A | 8,096 | $170.3K | 0.00% | +8,096 | New |
| Allworth Financial LP | 7,133 | $164.9K | 0.00% | +2,795+64.4% | Added |
| CIBC Private Wealth Group, LLC | 7,639 | $164.2K | 0.00% | +675+9.7% | Added |
| Sterling Capital Management LLC | 7,475 | $157.2K | 0.00% | −85,755−92.0% | Reduced |
| Smithfield Trust Co | 7,476 | $155.0K | 0.01% | +7,476 | New |
| Y.D. More Investments Ltd | 6,790 | $142.7K | 0.01% | +6,790 | New |
| American National Bank | 6,488 | $136.4K | 0.02% | +6,488 | New |
| KBC Group NV | 6,421 | $135.0K | 0.00% | −6,415−50.0% | Reduced |
| CWM, LLC | 5,378 | $113.0K | 0.00% | −4,568−45.9% | Reduced |
| Corebridge Financial, Inc. | 5,278 | $111.0K | 0.00% | −25,806−83.0% | Reduced |
| Macquarie Group Ltd | 4,684 | $98.2K | 0.00% | −1,848,196−99.7% | Reduced |
| MAI Capital Management | 4,601 | $96.8K | 0.00% | +4,601 | New |
| Whittier Trust Co | 4,518 | $95.0K | 0.00% | +4,518 | New |
| Central Trust Co | 4,142 | $87.1K | 0.00% | −8,244−66.6% | Reduced |
| Fifth Third Bancorp | 4,126 | $86.8K | 0.00% | +425+11.5% | Added |
| Eastern Bank | 4,102 | $86.3K | 0.00% | −99,013−96.0% | Reduced |
| EverSource Wealth Advisors, LLC | 3,978 | $83.7K | 0.00% | +730+22.5% | Added |
| Bank of Jackson Hole Trust | 3,765 | $79.2K | 0.05% | +3,765 | New |
| Sandy Spring Bank | 3,581 | $75.3K | 0.00% | −6,275−63.7% | Reduced |
| Caldwell Trust Co | 3,478 | $73.1K | 0.01% | +3,478 | New |
| Steward Partners Investment Advisory, LLC | 3,473 | $73.0K | 0.00% | −918−20.9% | Reduced |
| Northwestern Mutual Wealth Management Co | 3,465 | $72.9K | 0.00% | +3,465 | New |
| NBT Bank N A | 3,001 | $63.1K | 0.00% | +3,001 | New |
| State of Wyoming | 2,756 | $58.0K | 0.01% | +833+43.3% | Added |
| Point72 Asia (Singapore) Pte. Ltd. | 2,748 | $57.8K | 0.02% | +2,178+382.1% | Added |
| Shell Asset Management Co | 2,684 | $56.0K | 0.00% | −211−7.3% | Reduced |
| Hilltop National Bank | 2,554 | $53.7K | 0.02% | +2,554 | New |
| Farther Finance Advisors, LLC | 2,472 | $52.0K | 0.00% | +2,472 | New |
| MetLife Investment Management | 2,281 | $48.0K | 0.00% | −30,265−93.0% | Reduced |
| Ameliora Wealth Management Ltd. | 2,224 | $46.8K | 0.02% | +2,134+2,371.1% | Added |
| National Bank of Canada | 2,200 | $46.3K | 0.00% | +2,193+31,328.6% | Added |
| Federation des caisses Desjardins du Quebec | 2,140 | $45.0K | 0.00% | +605+39.4% | Added |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 2,050 | $44.1K | 0.00% | −42−2.0% | Reduced |
| Pinnacle Bancorp, Inc. | 1,974 | $41.5K | 0.01% | +1,947+7,211.1% | Added |
| Plante Moran Financial Advisors, LLC | 1,876 | $39.5K | 0.00% | 00.0% | Unchanged |
| Brown Brothers Harriman & Co | 1,801 | $37.9K | 0.00% | −7−0.4% | Reduced |
| GAMMA Investing LLC | 1,754 | $36.9K | 0.00% | +1,349+333.1% | Added |
| Horizon Investments, LLC | 1,712 | $36.0K | 0.00% | +1,712 | New |
| Asset Planning,Inc | 1,690 | $35.5K | 0.03% | +1,690 | New |
| IFP Advisors, Inc | 1,532 | $34.7K | 0.00% | +833+119.2% | Added |
| Parallel Advisors, LLC | 1,584 | $33.3K | 0.00% | +841+113.2% | Added |
| Wiser Advisor Group LLC | 1,459 | $30.7K | 0.04% | −65−4.3% | Reduced |
| Huntington National Bank | 1,438 | $30.2K | 0.00% | +1,438 | New |
| Harbor Capital Advisors, Inc. | 1,380 | $29.0K | 0.00% | +32+2.4% | Added |
| Global Retirement Partners, LLC | 1,370 | $28.8K | 0.00% | −115−7.7% | Reduced |
| Manchester Capital Management LLC | 1,300 | $27.3K | 0.00% | 00.0% | Unchanged |
| HM Payson & Co | 1,179 | $24.8K | 0.00% | −1−0.1% | Reduced |
| Centerpoint Advisors, LLC | 1,151 | $24.0K | 0.01% | −103−8.2% | Reduced |
| Bessemer Group Inc | 1,095 | $23.0K | 0.00% | −353−24.4% | Reduced |