Amentum Holdings Inc. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| AMERICAN SECURITIES LLC | 05/14/2026 | 45.03 M | $1.17 B | 0.00% | 18.45% |
| INVESCO LTD. | 05/12/2026 | 21.47 M | $560.04 M | -1.65% | 8.80% |
| BLACKROCK, INC. | 05/13/2026 | 17.84 M | $465.30 M | 2.19% | 7.31% |
| PRIMECAP MANAGEMENT CO/CA/ | 05/11/2026 | 12.09 M | $315.18 M | -0.34% | 4.95% |
| LEGACY ADVISORS, LLC | 05/05/2026 | 9.06 M | $9.06 M | -7.64% | 3.71% |
| 05/08/2026 | 7.85 M | $204.80 M | 100.00% | 3.22% | |
| 05/15/2026 | 6.65 M | $173.45 M | 100.00% | 2.73% | |
| FMR LLC | 05/15/2026 | 5.58 M | $145.48 M | -16.83% | 2.29% |
| STATE STREET CORP | 05/15/2026 | 5.08 M | $132.46 M | 0.34% | 2.08% |
| FRONTIER CAPITAL MANAGEMENT CO LLC | 05/15/2026 | 4.93 M | $128.58 M | -14.60% | 2.02% |
| DIMENSIONAL FUND ADVISORS LP | 05/07/2026 | 3.79 M | $98.77 M | 106.63% | 1.55% |
| GEODE CAPITAL MANAGEMENT, LLC | 05/15/2026 | 2.81 M | $73.42 M | 5.83% | 1.15% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS LTD. | 05/15/2026 | 2.79 M | $72.64 M | 41.96% | 1.14% |
| COLONY GROUP, LLC | 05/15/2026 | 2.60 M | $67.94 M | -6.78% | 1.07% |
| BANK OF AMERICA CORP /DE/ | 05/18/2026 | 2.41 M | $62.72 M | 107.79% | 0.99% |
| MORGAN STANLEY | 05/15/2026 | 2.23 M | $58.29 M | 7.69% | 0.92% |
| THRIVENT FINANCIAL FOR LUTHERANS | 05/01/2026 | 2.10 M | $54.78 M | 1.52% | 0.86% |
| ARVIN CAPITAL MANAGEMENT LP | 05/14/2026 | 2.07 M | $54.02 M | 26.56% | 0.85% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 05/15/2026 | 2.07 M | $53.93 M | 5.94% | 0.85% |
| UBS GROUP AG | 05/05/2026 | 1.71 M | $44.62 M | 730.06% | 0.70% |
| POINT72 ASSET MANAGEMENT, L.P. | 05/15/2026 | 1.63 M | $42.53 M | 134.52% | 0.67% |
| RUANE, CUNNIFF & GOLDFARB L.P. | 05/15/2026 | 1.62 M | $42.33 M | -32.21% | 0.67% |
| SEGRA CAPITAL MANAGEMENT, LLC | 05/07/2026 | 1.61 M | $42.06 M | 166.65% | 0.66% |
| PERMIAN INVESTMENT PARTNERS, LP | 05/15/2026 | 1.57 M | $40.87 M | 100.00% | 0.64% |
| TORONTO DOMINION BANK | 05/15/2026 | 1.57 M | $40.82 M | 100.00% | 0.64% |
| THOMPSON SIEGEL & WALMSLEY LLC | 05/11/2026 | 1.53 M | $39.80 M | -20.60% | 0.63% |
| BRIGHTLINE CAPITAL MANAGEMENT, LLC | 05/15/2026 | 1.40 M | $36.41 M | 0.29% | 0.57% |
| VERITION FUND MANAGEMENT LLC | 05/15/2026 | 1.30 M | $33.85 M | 50.02% | 0.53% |
| VOYA INVESTMENT MANAGEMENT LLC | 05/12/2026 | 1.20 M | $31.28 M | 4.53% | 0.49% |
| GOLDMAN SACHS GROUP INC | 05/15/2026 | 1.13 M | $29.51 M | 75.65% | 0.46% |
| LOOMIS SAYLES & CO L P | 05/14/2026 | 1.08 M | $28.20 M | -3.36% | 0.44% |
| TROLUCE CAPITAL ADVISORS LLC | 05/15/2026 | 1.00 M | $26.08 M | 100.00% | 0.41% |
| NORTHERN TRUST CORP | 05/14/2026 | 984.11 K | $25.67 M | 3.27% | 0.40% |
| CAPTION MANAGEMENT, LLC | 05/15/2026 | 961.10 K | $25.07 M | 300.29% | 0.39% |
| VANGUARD FIDUCIARY TRUST CO | 05/08/2026 | 947.46 K | $24.71 M | 100.00% | 0.39% |
| COOPER CREEK PARTNERS MANAGEMENT LLC | 05/15/2026 | 929.33 K | $24.24 M | -40.16% | 0.38% |
| BANK OF NEW YORK MELLON CORP | 05/05/2026 | 908.60 K | $23.70 M | -1.46% | 0.37% |
| TWO SIGMA INVESTMENTS, LP | 05/15/2026 | 900.18 K | $23.48 M | 41.10% | 0.37% |
| CACTI ASSET MANAGEMENT LLC | 04/15/2026 | 881.69 K | $22.99 M | 0.00% | 0.36% |
| MOORE CAPITAL MANAGEMENT, LP | 05/15/2026 | 873.61 K | $22.78 M | 83.80% | 0.36% |
| NUVEEN, LLC | 04/30/2026 | 871.80 K | $22.74 M | 7.13% | 0.36% |
| AVENIR CORP | 05/14/2026 | 841.10 K | $21.94 M | -1.16% | 0.34% |
| 683 CAPITAL MANAGEMENT, LLC | 05/15/2026 | 775.00 K | $20.21 M | -7.19% | 0.32% |
| PRINCIPAL FINANCIAL GROUP INC | 05/04/2026 | 744.73 K | $19.42 M | 2.24% | 0.31% |
| RUSSELL INVESTMENTS GROUP, LTD. | 05/08/2026 | 713.83 K | $18.62 M | 63.34% | 0.29% |
| ANCORA ADVISORS, LLC | 05/15/2026 | 703.12 K | $18.34 M | 74.75% | 0.29% |
| PENN CAPITAL MANAGEMENT COMPANY, LLC | 05/07/2026 | 694.35 K | $18.15 M | -6.67% | 0.28% |
| FIL LTD | 05/15/2026 | 652.16 K | $17.01 M | -54.37% | 0.27% |
| WELLS FARGO & COMPANY/MN | 05/11/2026 | 636.67 K | $16.60 M | 37.00% | 0.26% |
| MILLENNIUM MANAGEMENT LLC | 05/15/2026 | 631.06 K | $16.46 M | 931.35% | 0.26% |
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Amentum Holdings Inc. institutional Ownership - FAQ's
During the previous two years, 554 institutional investors and hedge funds held shares of Amentum Holdings Inc.. The most heavily invested institutionals were:
AMERICAN SECURITIES LLC: 45.03 M
Invesco Ltd.: 21.47 M
BlackRock, Inc.: 17.84 M
PRIMECAP MANAGEMENT CO/CA/: 12.09 M
Legacy Advisors, LLC: 9.06 M
FMR LLC: 5.58 M
86.48% of Amentum Holdings Inc. stock is owned by institutional investors.
Institutional investors have bought a total of 215.34 M shares in the last 24 months. This purchase volume represents approximately $6.53 B in transactions.