Amentum Holdings Inc. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| AMERICAN SECURITIES LLC | 02/12/2026 | 45.03 M | $1.31 B | 0.00% | 18.53% |
| BLACKROCK, INC. | 02/12/2026 | 17.46 M | $506.31 M | -2.95% | 7.16% |
| VANGUARD GROUP INC | 01/29/2026 | 15.41 M | $446.94 B | -0.92% | 6.32% |
| PRIMECAP MANAGEMENT CO/CA/ | 02/11/2026 | 12.13 M | $351.68 M | 1.75% | 4.99% |
| LEGACY ADVISORS, LLC | 01/27/2026 | 9.81 M | $9.81 M | 100.00% | 4.04% |
| STATE STREET CORP | 02/13/2026 | 5.06 M | $146.79 M | -25.93% | 2.07% |
| COLONY GROUP, LLC | 02/13/2026 | 2.79 M | $81.04 M | 8,467.63% | 1.15% |
| GEODE CAPITAL MANAGEMENT, LLC | 02/09/2026 | 2.66 M | $77.15 B | 0.20% | 1.09% |
| RUANE, CUNNIFF & GOLDFARB L.P. | 02/13/2026 | 2.39 M | $69.43 M | -1.22% | 0.99% |
| NORGES BANK | 02/10/2026 | 2.29 M | $66.53 M | 100.00% | 0.94% |
| THRIVENT FINANCIAL FOR LUTHERANS | 02/05/2026 | 2.07 M | $60.00 M | 14.61% | 0.85% |
| MORGAN STANLEY | 02/13/2026 | 2.08 M | $60.19 M | 14.89% | 0.85% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 02/13/2026 | 1.95 M | $56.61 M | 5.96% | 0.80% |
| THOMPSON SIEGEL & WALMSLEY LLC | 02/10/2026 | 1.92 M | $55.73 M | -29.61% | 0.79% |
| DIMENSIONAL FUND ADVISORS LP | 02/12/2026 | 1.83 M | $53.16 M | 40.34% | 0.75% |
| ARVIN CAPITAL MANAGEMENT LP | 02/13/2026 | 1.64 M | $47.46 M | 0.00% | 0.67% |
| AQR CAPITAL MANAGEMENT LLC | 02/17/2026 | 1.45 M | $42.11 M | 778.94% | 0.60% |
| BRIGHTLINE CAPITAL MANAGEMENT, LLC | 02/13/2026 | 1.39 M | $40.37 M | 16.00% | 0.57% |
| BANK OF AMERICA CORP /DE/ | 02/17/2026 | 1.16 M | $33.57 B | 44.96% | 0.47% |
| VOYA INVESTMENT MANAGEMENT LLC | 02/12/2026 | 1.15 M | $33.28 M | 5.76% | 0.47% |
| LOOMIS SAYLES & CO L P | 02/12/2026 | 1.12 M | $32.45 M | 5.15% | 0.46% |
| BANK OF NEW YORK MELLON CORP | 02/10/2026 | 922.10 K | $26.74 M | 6.45% | 0.38% |
| CACTI ASSET MANAGEMENT LLC | 01/02/2026 | 881.69 K | $25.75 M | 2.87% | 0.36% |
| VERITION FUND MANAGEMENT LLC | 02/13/2026 | 865.17 K | $25.09 M | -23.82% | 0.36% |
| AVENIR CORP | 02/13/2026 | 850.94 K | $24.68 M | -1.33% | 0.35% |
| NUVEEN, LLC | 02/12/2026 | 813.77 K | $23.60 M | 8.31% | 0.33% |
| PENN CAPITAL MANAGEMENT COMPANY, LLC | 02/09/2026 | 743.94 K | $21.63 M | -22.56% | 0.31% |
| PRINCIPAL FINANCIAL GROUP INC | 02/02/2026 | 728.41 K | $21.12 M | -1.00% | 0.30% |
| GOLDMAN SACHS GROUP INC | 02/10/2026 | 644.16 K | $18.68 B | -20.66% | 0.26% |
| TWO SIGMA INVESTMENTS, LP | 02/17/2026 | 637.99 K | $18.50 M | 59.85% | 0.26% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 02/17/2026 | 607.20 K | $17.61 M | 98.11% | 0.25% |
| NEW YORK STATE COMMON RETIREMENT FUND | 02/12/2026 | 535.22 K | $15.52 M | -18.79% | 0.22% |
| VAN ECK ASSOCIATES CORP | 02/13/2026 | 531.01 K | $15.40 M | -30.65% | 0.22% |
| PUBLIC SECTOR PENSION INVESTMENT BOARD | 02/13/2026 | 530.57 K | $15.39 M | -11.27% | 0.22% |
| ROYCE & ASSOCIATES LP | 02/09/2026 | 495.29 K | $14.36 M | 8.97% | 0.20% |
| HYPERION CAPITAL ADVISORS LP | 02/13/2026 | 491.87 K | $14.26 M | 17.11% | 0.20% |
| WELLS FARGO & COMPANY/MN | 02/13/2026 | 464.74 K | $13.48 M | 969.99% | 0.19% |
| CI INVESTMENTS INC. | 02/12/2026 | 425.53 K | $12.34 M | -0.64% | 0.18% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 02/17/2026 | 420.70 K | $12.20 M | 45.52% | 0.17% |
| PEAK6 LLC | 02/13/2026 | 418.40 K | $12.13 M | 100.00% | 0.17% |
| ANCORA ADVISORS, LLC | 02/17/2026 | 402.35 K | $11.67 M | 200.54% | 0.16% |
| VIDENT ADVISORY, LLC | 02/18/2026 | 382.54 K | $11.09 M | -15.87% | 0.16% |
| FIRST TRUST ADVISORS LP | 02/13/2026 | 377.83 K | $10.96 M | 879.08% | 0.16% |
| LEGAL & GENERAL GROUP PLC | 02/09/2026 | 368.61 K | $10.69 M | -5.07% | 0.15% |
| ARISTOTLE CAPITAL BOSTON, LLC | 02/17/2026 | 358.87 K | $10.41 M | -12.29% | 0.15% |
| SG AMERICAS SECURITIES, LLC | 01/09/2026 | 345.34 K | $10.02 M | 1,088.21% | 0.14% |
| CITADEL ADVISORS LLC | 02/17/2026 | 316.72 K | $9.18 B | 202.87% | 0.13% |
| SWISS NATIONAL BANK | 02/12/2026 | 311.79 K | $9.04 M | 1.73% | 0.13% |
| EXCHANGE TRADED CONCEPTS, LLC | 01/14/2026 | 310.52 K | $9.01 M | 16.09% | 0.13% |
| COMERICA BANK | 01/29/2026 | 301.56 K | $8.75 M | -3.54% | 0.12% |
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Amentum Holdings Inc. institutional Ownership - FAQ's
During the previous two years, 487 institutional investors and hedge funds held shares of Amentum Holdings Inc.. The most heavily invested institutionals were:
AMERICAN SECURITIES LLC: 45.03 M
BlackRock, Inc.: 17.46 M
VANGUARD GROUP INC: 15.41 M
PRIMECAP MANAGEMENT CO/CA/: 12.13 M
Legacy Advisors, LLC: 9.81 M
STATE STREET CORP: 5.06 M
61.60% of Amentum Holdings Inc. stock is owned by institutional investors.
Institutional investors have bought a total of 181.33 M shares in the last 24 months. This purchase volume represents approximately $5.81 B in transactions.