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 |
|---|---|---|---|---|---|
| Evolution Advisers, Inc. | 600 | $10.0K | 0.01% | 00.0% | Unchanged |
| Winch Advisory Services, LLC | 540 | $9.83K | 0.00% | 00.0% | Unchanged |
| 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 |
| Larson Financial Group LLC | 515 | $9.37K | 0.00% | +396+332.8% | Added |
| Optimum Investment Advisors | 501 | $9.12K | 0.00% | 00.0% | Unchanged |
| Ransom Advisory, Ltd | 500 | $9.10K | 0.00% | 00.0% | Unchanged |
| N.E.W. Advisory Services LLC | 490 | $8.92K | 0.00% | +490 | New |
| Mather Group, LLC. | 487 | $8.86K | 0.00% | +231+90.2% | Added |
| Mendota Financial Group, LLC | 480 | $8.74K | 0.01% | −251−34.3% | Reduced |
| Bartlett & Co. Wealth Management LLC | 466 | $8.48K | 0.00% | −216−31.7% | Reduced |
| Global Wealth Strategies & Associates | 465 | $8.46K | 0.00% | 00.0% | Unchanged |
| Ronald Blue Trust, Inc. | 447 | $8.14K | 0.00% | +15+3.5% | Added |
| Clearstead Advisors, LLC | 427 | $7.77K | 0.00% | −108−20.2% | Reduced |
| Beacon Capital Management, LLC | 424 | $7.72K | 0.00% | 00.0% | Unchanged |
| Y.D. More Investments Ltd | 424 | $7.69K | 0.00% | −6,366−93.8% | Reduced |
| BankPlus Trust Department | 398 | $7.24K | 0.00% | −66−14.2% | Reduced |
| Atlas Capital Advisors LLC | 370 | $6.73K | 0.00% | 00.0% | Unchanged |
| Murphy & Mullick Capital Management Corp | 352 | $6.41K | 0.01% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 340 | $6.14K | 0.00% | −85−20.0% | Reduced |
| Rossby Financial, LCC | 272 | $5.96K | 0.00% | +272 | New |
| Glen Eagle Advisors, LLC | 313 | $5.70K | 0.00% | −602−65.8% | Reduced |
| LRI Investments, LLC | 313 | $5.70K | 0.00% | 00.0% | Unchanged |
| CoreCap Advisors, LLC | 302 | $5.50K | 0.00% | −137−31.2% | Reduced |
| Colonial Trust Advisors | 302 | $5.50K | 0.00% | +302 | New |
| Macquarie Group Ltd | 299 | $5.44K | 0.00% | −4,385−93.6% | Reduced |
| Wiser Advisor Group LLC | 295 | $5.37K | 0.01% | −1,164−79.8% | Reduced |
| Cromwell Holdings LLC | 291 | $5.30K | 0.00% | 00.0% | Unchanged |
| Parvin Asset Management, LLC | 275 | $5.00K | 0.01% | −156−36.2% | Reduced |
| Deseret Mutual Benefit Administrators | 260 | $4.73K | 0.00% | 00.0% | Unchanged |
| Oakworth Capital, Inc. | 257 | $4.68K | 0.00% | 00.0% | Unchanged |
| Gen-Wealth Partners Inc | 256 | $4.66K | 0.00% | 00.0% | Unchanged |
| Lindbrook Capital, LLC | 251 | $4.57K | 0.00% | +108+75.5% | Added |
| Parkside Financial Bank & Trust | 238 | $4.33K | 0.00% | −36−13.1% | Reduced |
| Ameliora Wealth Management Ltd. | 223 | $4.06K | 0.00% | −2,001−90.0% | Reduced |
| DT Investment Partners, LLC | 218 | $3.97K | 0.00% | 00.0% | Unchanged |
| Financial Management Professionals, Inc. | 215 | $3.91K | 0.00% | 00.0% | Unchanged |
| Perkins Coie Trust Co | 211 | $3.84K | 0.00% | +4+1.9% | Added |
| Old Second National Bank of Aurora | 200 | $3.64K | 0.00% | 00.0% | Unchanged |
| Bellevue Asset Management, LLC | 186 | $3.38K | 0.00% | +186 | New |
| TD Private Client Wealth LLC | 181 | $3.29K | 0.00% | −123−40.5% | Reduced |
| Continuum Advisory, LLC | 180 | $3.28K | 0.00% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 174 | $3.17K | 0.00% | −189−52.1% | Reduced |
| Richards, Merrill & Peterson, Inc. | 170 | $3.09K | 0.00% | 00.0% | Unchanged |
| Medallion Wealth Advisors, LLC | 170 | $3.09K | 0.00% | 00.0% | Unchanged |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 161 | $2.93K | 0.00% | 00.0% | Unchanged |
| Golden State Wealth Management, LLC | 158 | $2.88K | 0.00% | 00.0% | Unchanged |
| Atlantic Edge Private Wealth Management, LLC | 155 | $2.82K | 0.00% | +155 | New |
| Community Bank, N.A. | 150 | $2.73K | 0.00% | 00.0% | Unchanged |
| Studio Investment Management LLC | 144 | $2.62K | 0.00% | −804−84.8% | Reduced |
| Farmers & Merchants Investments Inc | 139 | $2.53K | 0.00% | −100−41.8% | Reduced |
| GPS Wealth Strategies Group, LLC | 138 | $2.51K | 0.00% | 00.0% | Unchanged |
| McIlrath & Eck, LLC | 130 | $2.37K | 0.00% | 00.0% | Unchanged |
| ORG Partners LLC | 130 | $2.32K | 0.00% | +130 | New |
| Union Savings Bank | 125 | $2.27K | 0.00% | 00.0% | Unchanged |
| Roxbury Financial LLC | 112 | $2.20K | 0.00% | 00.0% | Unchanged |
| Brown, Lisle/Cummings, Inc. | 110 | $2.00K | 0.00% | 00.0% | Unchanged |
| Hemington Wealth Management | 130 | $2.00K | 0.00% | −1−0.8% | Reduced |
| Geneos Wealth Management Inc. | 108 | $1.97K | 0.00% | +17+18.7% | Added |
| Kozak & Associates, Inc. | 99 | $1.83K | 0.00% | 00.0% | Unchanged |
| Ramirez Asset Management, Inc. | 100 | $1.82K | 0.00% | −600−85.7% | Reduced |
| Godsey & Gibb Associates | 100 | $1.82K | 0.00% | 00.0% | Unchanged |
| Harbor Investment Advisory, LLC | 100 | $1.82K | 0.00% | 00.0% | Unchanged |
| Rosenberg Matthew Hamilton | 94 | $1.71K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 94 | $1.71K | 0.00% | +27+40.3% | Added |
| Grove Bank & Trust | 89 | $1.62K | 0.00% | +76+584.6% | Added |
| Asset Dedication, LLC | 80 | $1.46K | 0.00% | 00.0% | Unchanged |
| First Financial Corp | 79 | $1.44K | 0.00% | 00.0% | Unchanged |
| Missouri Trust & Investment Co | 75 | $1.36K | 0.00% | −45−37.5% | Reduced |
| Cherry Tree Wealth Management, LLC | 75 | $1.36K | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 75 | $1.36K | 0.00% | 00.0% | Unchanged |
| Minot DeBlois Advisors LLC | 75 | $1.36K | 0.00% | 00.0% | Unchanged |
| Wood Tarver Financial Group, LLC | 75 | $1.36K | 0.00% | 00.0% | Unchanged |
| Rakuten Securities, Inc. | 70 | $1.27K | 0.00% | +70 | New |
| Versant Capital Management, Inc | 66 | $1.20K | 0.00% | −27−29.0% | Reduced |
| Mechanics Financial Corp | 64 | $1.17K | 0.00% | −908−93.4% | Reduced |
| Hughes Financial Services, LLC | 65 | $1.16K | 0.00% | +65 | New |
| High Note Wealth, LLC | 60 | $1.09K | 0.00% | 00.0% | Unchanged |
| Bokf, NA | 56 | $1.02K | 0.00% | −12,976−99.6% | Reduced |
| Capital Analysts, LLC | 77 | $1.00K | 0.00% | 00.0% | Unchanged |
| NBC Securities, Inc. | 70 | $1.00K | 0.00% | +70 | New |
| Archer Investment Corp | 50 | $914 | 0.00% | 00.0% | Unchanged |
| Synergy Investment Management, LLC | 49 | $892 | 0.00% | 00.0% | Unchanged |
| Principal Securities, Inc. | 38 | $799 | 0.00% | 00.0% | Unchanged |
| Dunhill Financial, LLC | 21 | $790 | 0.00% | −8−27.6% | Reduced |
| 1620 Investment Advisors, Inc. | 40 | $728 | 0.00% | −6−13.0% | Reduced |
| MV Capital Management, Inc. | 33 | $601 | 0.00% | +26+371.4% | Added |
| Creative Financial Designs Inc | 32 | $582 | 0.00% | 00.0% | Unchanged |
| Bell Investment Advisors, Inc | 30 | $546 | 0.00% | −4−11.8% | Reduced |
| SBI Securities Co., Ltd. | 29 | $528 | 0.00% | −98−77.2% | Reduced |
| CVA Family Office, LLC | 29 | $528 | 0.00% | +29 | New |
| Harbour Investments, Inc. | 28 | $510 | 0.00% | 00.0% | Unchanged |
| Rialto Wealth Management, LLC | 27 | $492 | 0.00% | +27 | New |
| JFS Wealth Advisors, LLC | 26 | $474 | 0.00% | −5−16.1% | Reduced |
| Sachetta, LLC | 23 | $419 | 0.00% | 00.0% | Unchanged |
| Sofos Investments, Inc. | 23 | $419 | 0.00% | +23 | New |
| AdvisorNet Financial, Inc | 22 | $400 | 0.00% | 00.0% | Unchanged |
| Red Tortoise LLC | 22 | $400 | 0.00% | 00.0% | Unchanged |
| Whipplewood Advisors, LLC | 4 | $382 | 0.00% | −17−81.0% | Reduced |
| South State Corp. | 20 | $364 | 0.00% | +20 | New |