Amentum HoldingsAMTM
13F holders, Q3 2024 (September 30)492holders
8famous investors
$32.23avg. 13F price*
At the end of Q3 2024, 492 institutions reported holding Amentum Holdings Inc. (AMTM) in their 13F filings. The largest holders were Vanguard Group Inc. ($451.9M), BlackRock, Inc. ($287.6M) and Invesco Ltd. ($251.6M). 8 famous investors held it, including George Soros (0.0% of Soros Fund Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Amentum Holdings Inc.
- CUSIP
- 023939101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 43 | $106.8M |
| Exits | 0 | $0 |
Ownership 492 holders
| Vanguard Group Inc. | 0.01% | Add +0.6% | 14,013,274 | $451.9M |
| BlackRock, Inc. | 0.01% | — | 8,917,428 | $287.6M |
| Invesco Ltd. | 0.05% | Add +288.7% | 7,800,601 | $251.6M |
| State Street Corp. | 0.01% | Add +0.1% | 7,327,308 | $236.3M |
| Primecap Management Co. | 0.13% | Reduce -5.6% | 5,271,282 | $170.0M |
| Barrow Hanley Mewhinney & Strauss LLC | 0.34% | Reduce -3.0% | 3,225,967 | $104.0M |
| Geode Capital Management, LLC | 0.01% | Add +2.4% | 3,145,264 | $101.0M |
| Boston Partners | 0.11% | Reduce -23.9% | 2,983,146 | $95.8M |
| Ruane, Cunniff & Goldfarb L.P. | 1.28% | Reduce -1.8% | 2,530,489 | $81.6M |
| Allspring Global Investments Holdings, LLC | 0.12% | Reduce -16.3% | 2,430,975 | $78.4M |
| Macquarie Group Ltd. | 0.06% | Reduce -10.1% | 1,852,880 | $59.8M |
| Bank of America Corp. | 0.00% | Add +18.0% | 1,673,255 | $54.0M |
| Ninety One UK Ltd | 0.13% | Reduce -2.5% | 1,538,931 | $49.6M |
| Dimensional Fund Advisors LP | 0.01% | Add +3.9% | 1,259,348 | $40.5M |
| Massachusetts Financial Services Co. | 0.01% | Reduce -27.1% | 1,228,298 | $39.6M |
| Simcoe Capital Management, LLC | 4.88% | New | 1,153,105 | $37.2M |
| Morgan Stanley | 0.00% | Reduce -24.6% | 1,026,949 | $33.1M |
| CI Investments Inc. | 0.12% | Reduce -10.0% | 973,857 | $31.4M |
| Wellington Management Group LLP | 0.01% | Add +321.8% | 935,078 | $30.2M |
| Deutsche Bank AG | 0.01% | Add +318.5% | 934,082 | $30.1M |
| Neuberger Berman Group LLC | 0.02% | Reduce -23.3% | 890,474 | $28.7M |
| Cooper Creek Partners Management LLC | 0.87% | New | 837,670 | $27.0M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.06% | Add +2.1% | 832,025 | $26.8M |
| Goldman Sachs Group Inc. | 0.00% | Add +159.1% | 782,805 | $25.2M |
| Bank of New York Mellon Corp | 0.00% | Reduce -3.0% | 775,054 | $25.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +1.9% | 760,516 | $24.5M |
| FIL Ltd | 0.02% | Add +0.6% | 735,112 | $23.7M |
| Caisse de depot et placement du Quebec | 0.05% | Reduce -0.5% | 718,039 | $23.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Add +24.3% | 674,167 | $21.7M |
| Millennium Management | 0.02% | Add +551.5% | 671,767 | $21.7M |
| Legal & General Group Plc | 0.01% | Add +3.7% | 659,700 | $21.3M |
| Thrivent Financial for Lutherans | 0.03% | Add +27.8% | 535,421 | $17.3M |
| First Trust Advisors LP | 0.02% | Add +16.1% | 514,562 | $16.6M |
| Citadel Advisors | 0.02% | Add +1585.8% | 481,033 | $15.5M |
| AQR Capital Management | 0.02% | Add +26.0% | 639,326 | $15.3M |
| Renaissance Technologies | 0.02% | Add +164.1% | 440,500 | $14.2M |
| Nuveen Asset Management, LLC | 0.00% | Reduce -1.9% | 436,524 | $14.1M |
| UBS Group AG | 0.00% | Reduce -13.3% | 426,564 | $13.8M |
| Ameriprise Financial Inc. | 0.00% | Add +3.2% | 413,033 | $13.3M |
| Agf Management Ltd. | 0.06% | Add +2.3% | 365,376 | $11.8M |
| Sessa Capital IM, L.P. | 0.44% | New | 354,699 | $11.4M |
| BDF-Gestion | 1.19% | Add +49.5% | 18,124 | $11.1M |
| Madison Avenue Partners, LP | 1.03% | New | 383,218 | $11.1M |
| Thompson Siegel & Walmsley LLC | 0.17% | Add +23.5% | 342,242 | $11.0M |
| Royal Bank of Canada | 0.00% | Reduce -60.1% | 333,296 | $10.7M |
| Two Sigma Investments, LP | 0.02% | Reduce -5.7% | 321,096 | $10.4M |
| Envestnet Asset Management Inc. | 0.00% | Add +2.7% | 318,115 | $10.1M |
| Swiss National Bank | 0.01% | Reduce -15.9% | 312,800 | $10.1M |
| Todd Asset Management LLC | 0.23% | Reduce -0.6% | 307,663 | $9.9M |
| American Century Companies Inc. | 0.01% | Reduce -54.5% | 287,886 | $9.3M |
| Focus Partners Wealth | 0.03% | Add +12.8% | 275,140 | $8.9M |
| Wells Fargo & Company | 0.00% | Add +34.5% | 272,118 | $8.8M |
| JPMorgan Chase & Co. | 0.00% | Reduce -29.9% | 270,969 | $8.7M |
| California Public Employees Retirement System | 0.01% | Add +3.2% | 256,237 | $8.3M |
| Sei Investments Co. | 0.01% | Reduce -10.3% | 243,716 | $7.9M |
| Williams Jones Wealth Management, LLC. | 0.08% | Reduce -4.1% | 223,803 | $7.2M |
| Rhumbline Advisers | 0.01% | Add +0.2% | 221,858 | $7.2M |
| California State Teachers Retirement System | 0.01% | Reduce -1.1% | 216,601 | $7.0M |
| Victory Capital Management Inc. | 0.01% | Add +1.0% | 212,150 | $6.8M |
| Teachers Retirement System of the State of Kentucky | 0.06% | Reduce -0.3% | 212,085 | $6.8M |
| Waters Parkerson & Co., LLC | 0.33% | Reduce -0.6% | 203,578 | $6.6M |
| Natixis Advisors, LLC | 0.01% | Add +0.6% | 200,665 | $6.5M |
| Korea Investment CORP | 0.02% | Reduce -15.3% | 197,972 | $6.4M |
| Campbell Newman Asset Management Inc. | 0.47% | No change | 193,208 | $6.2M |
| Canada Pension Plan Investment Board | 0.01% | Add +6.6% | 188,032 | $6.1M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.01% | Add +12.7% | 187,975 | $6.1M |
| Mesirow Financial Investment Management, Inc. | 0.12% | Reduce -1.2% | 185,990 | $6.0M |
| Two Sigma Advisers, LP | 0.01% | Add +0.3% | 184,900 | $6.0M |
| T. Rowe Price Associates Inc. | 0.00% | Add +0.3% | 174,558 | $5.6M |
| Fort Baker Capital Management LP | 2.32% | New | 167,490 | $5.4M |
| HSBC Holdings PLC | 0.00% | Reduce -22.9% | 175,788 | $5.3M |
| Lazard Asset Management LLC | 0.01% | Reduce -1.8% | 204,047 | $5.2M |
| Barclays PLC | 0.00% | Reduce -32.7% | 159,813 | $5.2M |
| Hutchinson Capital Management | 0.91% | Reduce -0.8% | 148,572 | $4.8M |
| Northern Trust Corp. | 0.00% | Reduce -85.3% | 148,513 | $4.8M |
| Principal Financial Group Inc. | 0.00% | Add +4.3% | 145,574 | $4.7M |
| Alliancebernstein L.P. | 0.00% | Reduce -13.5% | 142,646 | $4.6M |
| NorthCoast Asset Management LLC | 0.03% | Reduce -86.6% | 135,026 | $4.3M |
| State Board of Administration of Florida Retirement System | 0.01% | Add +0.2% | 132,514 | $4.3M |
| United Capital Financial Advisors, LLC | 0.03% | Reduce -0.2% | 130,560 | $4.2M |
| Washington Trust Advisors, Inc. | 0.36% | Reduce -25.3% | 128,198 | $4.1M |
| Lathrop Investment Management Co. | 0.76% | Reduce -1.2% | 127,169 | $4.1M |
| Tower Bridge Advisors | 0.43% | Reduce -2.2% | 125,662 | $4.1M |
| Wealth Enhancement Advisory Services, LLC | 0.01% | Add +2.3% | 121,080 | $3.9M |
| State of Tennessee, Department of Treasury | 0.01% | Add +6.3% | 118,655 | $3.8M |
| Adage Capital Partners Gp, L.L.C. | 0.01% | Reduce -1.8% | 118,027 | $3.8M |
| New York State Teachers Retirement System | 0.01% | Reduce -9.8% | 116,135 | $3.7M |
| LBP Am SA | 0.06% | New | 115,535 | $3.7M |
| Citigroup Inc. | 0.00% | Reduce -31.4% | 114,850 | $3.7M |
| State of Wisconsin Investment Board | 0.01% | Reduce -36.8% | 110,257 | $3.6M |
| F/m Investments LLC | 0.11% | Reduce -1.0% | 109,887 | $3.5M |
| Janus Henderson Group PLC | 0.00% | Add +273.8% | 117,059 | $3.5M |
| Mackenzie Financial Corp. | 0.00% | Add +1.4% | 104,687 | $3.4M |
| LPL Financial LLC | 0.00% | Add +20.5% | 104,145 | $3.4M |
| Eastern Bank | 0.06% | No change | 103,115 | $3.3M |
| Everett Harris & Co. | 0.04% | Add +7.8% | 101,793 | $3.3M |
| Sterling Capital Management LLC | 0.04% | — | 93,230 | $3.0M |
| North Growth Management Ltd. | 0.56% | No change | 93,000 | $3.0M |
| Neville Rodie & Shaw Inc. | 0.21% | Reduce -1.0% | 89,977 | $2.9M |
| Telos Capital Management, Inc. | 0.30% | Add +1.6% | 88,292 | $2.8M |
"% of holder's portfolio" is AMTM's weight in each manager's 13F, not the share of Amentum Holdings Inc. the manager owns.