AMTM fund manager activity
Amentum Holdings, Inc · NYSE. Reported by 4 tracked fund managers in their 13F filings, Q3 2024 to Q2 2026.
Q4 2025
| Manager | Activity | Shares | Value | % of portfolio | Filed |
|---|
| Jeremy Grantham - GMO | No change | 10,457 | $303,253 | 0.00% | Feb 17, 2026 |
| Joel Greenblatt - Gotham Asset Management | Added | 635,430 | $18,427,470 | 0.07% | Feb 17, 2026 |
| Ruane Cunniff LP | Trimmed | 2,394,129 | $69,429,741 | 1.08% | Feb 13, 2026 |
Q3 2025
| Manager | Activity | Shares | Value | % of portfolio | Filed |
|---|
| Jeremy Grantham - GMO | New | 10,457 | $250,445 | 0.00% | Nov 13, 2025 |
| Joel Greenblatt - Gotham Asset Management | New | 244,826 | $5,863,583 | 0.03% | Nov 14, 2025 |
| Ruane Cunniff LP | Trimmed | 2,423,748 | $58,048,765 | 0.96% | Nov 14, 2025 |
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