AMTM — AMENTUM HOLDINGS INC
As of Q2 2026, 37 SEC-registered investment managers reported holding AMTM (AMENTUM HOLDINGS INC) in their latest 13F filings, with a combined reported value of $1.55B across 75.58M shares. That is +7.9% by share count (+5.51M shares) versus the previous quarter, while reported value moved -14.7%. Ownership is concentrated: the five largest holders account for 71.8% of reported value and the top ten for 85.7%.
Compared with the prior quarter, 1 opened new positions, 20 added to existing stakes, 13 trimmed, 3 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
AMTM is classified in the Consumer Discretionary sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
Q2 2026 — 37 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Invesco Ltd history | 24.95M | $515.80M | 0.04% | Add |
| BlackRock Inc history | 17.91M | $370.14M | 0.01% | Hold |
| Fidelity Management & Research (FMR) history | 5.68M | $117.39M | 0.01% | Add |
| Geode Capital Management history | 2.72M | $56.17M | 0.00% | Reduce |
| Goldman Sachs Group history | 2.71M | $56.05M | 0.01% | Add |
| Morgan Stanley history | 2.66M | $55.03M | 0.00% | Add |
| Millennium Management history | 2.13M | $43.98M | 0.02% | Add |
| Charles Schwab Investment Management history | 2.12M | $43.82M | 0.01% | Add |
| Bank of America Corp history | 2.04M | $42.23M | 0.00% | Reduce |
| UBS Group AG history | 1.55M | $31.94M | 0.00% | Reduce |
| Norges Bank Investment Management history | 1.52M | $31.34M | 0.00% | Reduce |
| Northern Trust Corp history | 1.03M | $21.29M | 0.00% | Add |
| Citadel Advisors history | 974.28K | $20.14M | 0.00% | Add |
| BNY Mellon history | 878.08K | $18.15M | 0.00% | Reduce |
| Wells Fargo & Co history | 750.21K | $15.51M | 0.00% | Add |
| Principal Global Investors history | 742.38K | $15.35M | 0.01% | Hold |
| Royce & Associates history | 697.37K | $14.41M | 0.12% | Add |
| Point72 Asset Management history | 649.98K | $13.44M | 0.02% | Reduce |
| AQR Capital Management history | 601.90K | $12.42M | 0.00% | Add |
| Ruane Cunniff & Goldfarb (Sequoia) history | 537.21K | $11.10M | 0.17% | Reduce |
| PSP Investments history | 528.82K | $10.93M | 0.03% | Reduce |
| Moore Capital Management history | 365.10K | $7.55M | 0.12% | Reduce |
| Legal & General Investment Management America history | 349.05K | $7.21M | 0.00% | Add |
| Two Sigma Investments history | 284.27K | $5.88M | 0.01% | Reduce |
| D. E. Shaw & Co history | 191.49K | $3.96M | 0.00% | Add |
| Prudential Financial history | 139.95K | $2.89M | 0.00% | Hold |
| JPMorgan Chase & Co history | 119.17K | $2.60M | 0.00% | New |
| Soros Fund Management history | 118.28K | $2.44M | 0.03% | Add |
| Balyasny Asset Management history | 85.39K | $1.76M | 0.00% | Add |
| Manulife Financial history | 273.62K | $1.12M | 0.00% | Add |
| Bridgewater Associates history | 47.22K | $976.10K | 0.00% | Add |
| Citigroup Inc history | 31.49K | $650.82K | 0.00% | Reduce |
| Deutsche Bank AG history | 21.82K | $451.04K | 0.00% | Add |
| Franklin Resources history | 13.59K | $280.84K | 0.00% | Add |
| PNC Financial Services history | 12.02K | $248.45K | 0.00% | Reduce |
| Fidelity International (FIL) history | 1.38K | $28.44K | 0.00% | Reduce |
| T. Rowe Price Associates history | 152.08K | $3.15K | 0.00% | Add |
Q1 2026 — 38 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Invesco Ltd history | 21.47M | $560.04M | 0.09% | Reduce |
| BlackRock Inc history | 17.84M | $465.30M | 0.01% | Add |
| Fidelity Management & Research (FMR) history | 5.58M | $145.48M | 0.01% | Reduce |
| Geode Capital Management history | 2.81M | $73.42M | 0.01% | Add |
| Bank of America Corp history | 2.41M | $62.72M | 0.01% | Add |
| Morgan Stanley history | 2.23M | $58.29M | 0.00% | Add |
| Charles Schwab Investment Management history | 2.07M | $53.93M | 0.01% | Add |
| UBS Group AG history | 1.71M | $44.62M | 0.01% | Add |
| Point72 Asset Management history | 1.63M | $42.53M | 0.06% | Add |
| Ruane Cunniff & Goldfarb (Sequoia) history | 1.62M | $42.33M | 0.70% | Reduce |
| Goldman Sachs Group history | 1.13M | $29.51M | 0.00% | Add |
| Northern Trust Corp history | 984.11K | $25.67M | 0.00% | Add |
| Two Sigma Investments history | 928.08K | $24.20M | 0.02% | Add |
| BNY Mellon history | 908.60K | $23.70M | 0.00% | Reduce |
| Moore Capital Management history | 873.61K | $22.78M | 0.47% | Add |
| Principal Global Investors history | 744.73K | $19.42M | 0.01% | Add |
| Fidelity International (FIL) history | 652.16K | $17.01M | 0.01% | Reduce |
| Wells Fargo & Co history | 636.67K | $16.60M | 0.00% | Add |
| Millennium Management history | 631.05K | $16.46M | 0.01% | Add |
| PSP Investments history | 549.80K | $14.34M | 0.04% | Add |
| Royce & Associates history | 549.78K | $14.34M | 0.14% | Add |
| Citadel Advisors history | 506.84K | $13.22M | 0.00% | Reduce |
| AQR Capital Management history | 507.84K | $13.17M | 0.01% | Reduce |
| Legal & General Investment Management America history | 334.90K | $8.73M | 0.00% | Reduce |
| Prudential Financial history | 140.43K | $3.66M | 0.01% | Reduce |
| Soros Fund Management history | 107.61K | $2.81M | 0.03% | Reduce |
| Janus Henderson Group history | 69.40K | $1.81M | 0.00% | Hold |
| D. E. Shaw & Co history | 66.17K | $1.73M | 0.00% | New |
| Maverick Capital history | 46.34K | $1.21M | 0.01% | New |
| Manulife Financial history | 40.92K | $1.07M | 0.00% | Add |
| Citigroup Inc history | 40.67K | $1.06M | 0.00% | Reduce |
| Deutsche Bank AG history | 19.85K | $517.79K | 0.00% | Reduce |
| Balyasny Asset Management history | 18.34K | $478.44K | 0.00% | Reduce |
| Bridgewater Associates history | 17.05K | $444.72K | 0.00% | Reduce |
| PNC Financial Services history | 13.67K | $356.62K | 0.00% | Add |
| Franklin Resources history | 11.85K | $308.97K | 0.00% | Reduce |
| CPP Investments history | 11.59K | $302.37K | 0.00% | Reduce |
| T. Rowe Price Associates history | 145.25K | $3.79K | 0.00% | Add |
Q4 2025 — 41 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Invesco Ltd history | 21.83M | $633.19M | 0.10% | Reduce |
| BlackRock Inc history | 17.46M | $506.31M | 0.01% | Reduce |
| Vanguard Group history | 15.41M | $446.94M | 0.01% | Reduce |
| Fidelity Management & Research (FMR) history | 6.71M | $194.51M | 0.01% | Add |
| Geode Capital Management history | 2.66M | $77.15M | 0.01% | Hold |
| Ruane Cunniff & Goldfarb (Sequoia) history | 2.39M | $69.43M | 1.08% | Reduce |
| Norges Bank Investment Management history | 2.29M | $66.53M | 0.01% | Add |
| Morgan Stanley history | 2.08M | $60.19M | 0.00% | Add |
| Charles Schwab Investment Management history | 1.95M | $56.61M | 0.01% | Add |
| AQR Capital Management history | 1.45M | $42.11M | 0.02% | Add |
| Fidelity International (FIL) history | 1.43M | $41.45M | 0.03% | Reduce |
| Bank of America Corp history | 1.16M | $33.57M | 0.00% | Add |
| Northern Trust Corp history | 952.98K | $27.64M | 0.00% | Add |
| BNY Mellon history | 922.10K | $26.74M | 0.01% | Add |
| Principal Global Investors history | 728.41K | $21.12M | 0.01% | Reduce |
| Point72 Asset Management history | 695.29K | $20.16M | 0.02% | Reduce |
| Goldman Sachs Group history | 644.16K | $18.68M | 0.00% | Reduce |
| Two Sigma Investments history | 637.99K | $18.50M | 0.03% | Add |
| Citadel Advisors history | 551.49K | $15.99M | 0.00% | Add |
| PSP Investments history | 530.57K | $15.39M | 0.05% | Reduce |
| Royce & Associates history | 495.29K | $14.36M | 0.15% | Add |
| Moore Capital Management history | 475.31K | $13.78M | 0.20% | Add |
| Wells Fargo & Co history | 464.74K | $13.48M | 0.00% | Add |
| Legal & General Investment Management America history | 368.61K | $10.69M | 0.00% | Reduce |
| Balyasny Asset Management history | 268.00K | $7.77M | 0.01% | Add |
| UBS Group AG history | 206.10K | $5.98M | 0.00% | Reduce |
| Prudential Financial history | 142.42K | $4.13M | 0.01% | Reduce |
| Soros Fund Management history | 109.30K | $3.17M | 0.04% | New |
| JPMorgan Chase & Co history | 89.29K | $2.59M | 0.00% | Reduce |
| Citigroup Inc history | 79.01K | $2.29M | 0.00% | Add |
| Janus Henderson Group history | 69.40K | $2.01M | 0.00% | Hold |
| Millennium Management history | 61.19K | $1.77M | 0.00% | Reduce |
| Manulife Financial history | 36.92K | $1.07M | 0.00% | Add |
| Marshall Wace history | 35.08K | $1.02M | 0.00% | New |
| CPP Investments history | 32.99K | $956.83K | 0.00% | Add |
| Deutsche Bank AG history | 21.18K | $614.08K | 0.00% | Add |
| Wellington Management Group history | 18.95K | $549.49K | 0.00% | Reduce |
| Bridgewater Associates history | 18.25K | $529.28K | 0.00% | New |
| PNC Financial Services history | 12.62K | $366.07K | 0.00% | Reduce |
| Franklin Resources history | 11.93K | $346.05K | 0.00% | Add |
| T. Rowe Price Associates history | 129.48K | $3.76K | 0.00% | Add |
Q3 2025 — 37 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Invesco Ltd history | 22.12M | $529.70M | 0.09% | Add |
| BlackRock Inc history | 17.99M | $430.87M | 0.01% | Reduce |
| Vanguard Group history | 15.55M | $372.53M | 0.01% | Reduce |
| Fidelity Management & Research (FMR) history | 6.24M | $149.33M | 0.01% | Add |
| Geode Capital Management history | 2.65M | $63.59M | 0.00% | Add |
| Ruane Cunniff & Goldfarb (Sequoia) history | 2.42M | $58.05M | 0.96% | Reduce |
| Charles Schwab Investment Management history | 1.84M | $44.12M | 0.01% | Add |
| Morgan Stanley history | 1.81M | $43.26M | 0.00% | Reduce |
| Fidelity International (FIL) history | 1.56M | $37.34M | 0.03% | Reduce |
| Point72 Asset Management history | 1.38M | $33.07M | 0.06% | Add |
| Northern Trust Corp history | 942.95K | $22.58M | 0.00% | Hold |
| BNY Mellon history | 866.26K | $20.75M | 0.00% | Hold |
| Goldman Sachs Group history | 836.10K | $20.02M | 0.00% | Add |
| Bank of America Corp history | 798.44K | $19.12M | 0.00% | Reduce |
| Principal Global Investors history | 735.75K | $17.62M | 0.01% | Reduce |
| Millennium Management history | 640.80K | $15.35M | 0.01% | Reduce |
| PSP Investments history | 597.98K | $14.32M | 0.05% | Add |
| Royce & Associates history | 454.50K | $10.89M | 0.11% | Add |
| Citadel Advisors history | 422.00K | $10.11M | 0.00% | Reduce |
| Moore Capital Management history | 407.42K | $9.76M | 0.14% | Reduce |
| Two Sigma Investments history | 399.12K | $9.56M | 0.01% | Add |
| Legal & General Investment Management America history | 388.29K | $9.30M | 0.00% | Reduce |
| UBS Group AG history | 231.19K | $5.54M | 0.00% | Reduce |
| AQR Capital Management history | 165.21K | $3.96M | 0.00% | Reduce |
| Prudential Financial history | 147.20K | $3.53M | 0.00% | Reduce |
| JPMorgan Chase & Co history | 104.77K | $2.51M | 0.00% | Add |
| Citigroup Inc history | 76.71K | $1.84M | 0.00% | Reduce |
| Janus Henderson Group history | 69.40K | $1.66M | 0.00% | Hold |
| Wells Fargo & Co history | 43.43K | $1.04M | 0.00% | Add |
| Balyasny Asset Management history | 36.01K | $862.44K | 0.00% | New |
| Manulife Financial history | 35.62K | $853.17K | 0.00% | Reduce |
| Franklin Resources history | 9.04K | $774.57K | 0.00% | New |
| Wellington Management Group history | 19.69K | $471.53K | 0.00% | Reduce |
| Deutsche Bank AG history | 18.73K | $448.66K | 0.00% | Add |
| PNC Financial Services history | 13.51K | $323.49K | 0.00% | Reduce |
| CPP Investments history | 8.09K | $193.85K | 0.00% | Hold |
| T. Rowe Price Associates history | 118.17K | $2.83K | 0.00% | Add |
Q2 2025 — 39 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Invesco Ltd history | 19.58M | $462.22M | 0.08% | Add |
| BlackRock Inc history | 19.00M | $448.47M | 0.01% | Add |
| Vanguard Group history | 16.53M | $390.36M | 0.01% | Add |
| Millennium Management history | 4.67M | $110.17M | 0.06% | Add |
| Fidelity Management & Research (FMR) history | 4.57M | $107.99M | 0.01% | Add |
| Geode Capital Management history | 2.51M | $59.35M | 0.00% | Add |
| Ruane Cunniff & Goldfarb (Sequoia) history | 2.44M | $57.65M | 0.99% | Add |
| Morgan Stanley history | 2.18M | $51.40M | 0.00% | Add |
| Norges Bank Investment Management history | 2.16M | $51.01M | 0.01% | Add |
| Fidelity International (FIL) history | 2.07M | $48.81M | 0.04% | Reduce |
| Charles Schwab Investment Management history | 1.75M | $41.20M | 0.01% | Add |
| Citadel Advisors history | 949.19K | $22.41M | 0.00% | Reduce |
| Northern Trust Corp history | 941.03K | $22.22M | 0.00% | Add |
| Bank of America Corp history | 868.26K | $20.50M | 0.00% | Reduce |
| BNY Mellon history | 868.21K | $20.50M | 0.00% | Add |
| UBS Group AG history | 766.30K | $18.09M | 0.00% | Reduce |
| Principal Global Investors history | 744.52K | $17.58M | 0.01% | Add |
| Moore Capital Management history | 611.12K | $14.43M | 0.18% | Add |
| PSP Investments history | 514.17K | $12.14M | 0.05% | Add |
| Legal & General Investment Management America history | 404.67K | $9.55M | 0.00% | Add |
| Point72 Asset Management history | 350.63K | $8.28M | 0.02% | New |
| AQR Capital Management history | 350.20K | $8.27M | 0.01% | New |
| Royce & Associates history | 335.00K | $7.91M | 0.08% | New |
| Goldman Sachs Group history | 262.42K | $6.20M | 0.00% | Reduce |
| Prudential Financial history | 150.01K | $3.77M | 0.01% | Add |
| Citigroup Inc history | 129.86K | $3.07M | 0.00% | Add |
| JPMorgan Chase & Co history | 91.32K | $2.16M | 0.00% | Add |
| Marshall Wace history | 74.83K | $1.77M | 0.00% | Reduce |
| Janus Henderson Group history | 69.40K | $1.64M | 0.00% | Reduce |
| Wellington Management Group history | 60.78K | $1.43M | 0.00% | New |
| Wells Fargo & Co history | 40.21K | $949.30K | 0.00% | Reduce |
| Manulife Financial history | 36.36K | $858.53K | 0.00% | Reduce |
| Deutsche Bank AG history | 17.40K | $410.79K | 0.00% | Add |
| PNC Financial Services history | 13.92K | $328.75K | 0.00% | Reduce |
| Two Sigma Investments history | 13.73K | $324.14K | 0.00% | Reduce |
| CPP Investments history | 8.09K | $191.10K | 0.00% | New |
| National Pension Service of Korea history | 995 | $23.49K | 0.00% | New |
| T. Rowe Price Associates history | 106.15K | $2.51K | 0.00% | Add |
| Lazard Asset Management history | 13 | $0 | — | New |
Q1 2025 — 34 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| BlackRock Inc history | 18.25M | $332.13M | 0.01% | Add |
| Invesco Ltd history | 17.19M | $312.88M | 0.06% | Add |
| Vanguard Group history | 16.34M | $297.43M | 0.01% | Reduce |
| Fidelity Management & Research (FMR) history | 4.41M | $80.24M | 0.01% | Add |
| Citadel Advisors history | 3.70M | $67.40M | 0.01% | Add |
| Ruane Cunniff & Goldfarb (Sequoia) history | 2.39M | $43.55M | 0.79% | Reduce |
| Geode Capital Management history | 2.30M | $41.87M | 0.00% | Add |
| Fidelity International (FIL) history | 2.21M | $40.21M | 0.04% | Add |
| Morgan Stanley history | 2.09M | $38.09M | 0.00% | Add |
| Millennium Management history | 2.01M | $36.61M | 0.02% | Add |
| Balyasny Asset Management history | 1.88M | $34.23M | 0.06% | New |
| Charles Schwab Investment Management history | 1.55M | $28.19M | 0.01% | Add |
| UBS Group AG history | 1.53M | $27.85M | 0.01% | Add |
| Bank of America Corp history | 968.54K | $17.63M | 0.00% | Add |
| Northern Trust Corp history | 854.42K | $15.55M | 0.00% | Add |
| BNY Mellon history | 760.51K | $13.84M | 0.00% | Add |
| Principal Global Investors history | 712.17K | $12.96M | 0.01% | Add |
| Moore Capital Management history | 498.26K | $9.07M | 0.19% | Reduce |
| Goldman Sachs Group history | 470.38K | $8.56M | 0.00% | Add |
| PSP Investments history | 455.13K | $8.28M | 0.04% | Add |
| Davidson Kempner Capital Management history | 450.00K | $8.19M | 0.19% | New |
| Legal & General Investment Management America history | 390.94K | $7.12M | 0.00% | Reduce |
| Prudential Financial history | 137.75K | $2.70M | 0.00% | Add |
| Marshall Wace history | 147.35K | $2.68M | 0.00% | New |
| Janus Henderson Group history | 131.00K | $2.37M | 0.00% | Add |
| Citigroup Inc history | 117.81K | $2.14M | 0.00% | Reduce |
| JPMorgan Chase & Co history | 87.71K | $1.60M | 0.00% | Reduce |
| Two Sigma Investments history | 54.10K | $984.62K | 0.00% | New |
| Wells Fargo & Co history | 50.45K | $918.22K | 0.00% | Reduce |
| Manulife Financial history | 37.52K | $682.86K | 0.00% | New |
| Renaissance Technologies history | 31.40K | $571.48K | 0.00% | Add |
| Deutsche Bank AG history | 17.09K | $311.00K | 0.00% | Add |
| PNC Financial Services history | 15.56K | $283.23K | 0.00% | Reduce |
| T. Rowe Price Associates history | 88.10K | $1.60K | 0.00% | Add |
New Positions (Q2 2026)
- JPMorgan Chase & Co 119.17K sh · $2.60M
Fully Exited (vs previous quarter)
- Janus Henderson Group sold 69.40K sh · $1.81M
- Maverick Capital sold 46.34K sh · $1.21M
- CPP Investments sold 11.59K sh · $302.37K
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q2 2026 | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 | Q3 2024 |
|---|---|---|---|---|---|---|---|---|
| Invesco Ltd | 24.95M | 21.47M | 21.83M | 22.12M | 19.58M | 17.19M | 13.86M | 7.80M |
| BlackRock Inc | 17.91M | 17.84M | 17.46M | 17.99M | 19.00M | 18.25M | 16.77M | 8.92M |
| Fidelity Management & Research (FMR) | 5.68M | 5.58M | 6.71M | 6.24M | 4.57M | 4.41M | 2.40M | 79.31K |
| Geode Capital Management | 2.72M | 2.81M | 2.66M | 2.65M | 2.51M | 2.30M | 1.96M | 3.15M |
| Goldman Sachs Group | 2.71M | 1.13M | 644.16K | 836.10K | 262.42K | 470.38K | 295.02K | 817.21K |
| Morgan Stanley | 2.66M | 2.23M | 2.08M | 1.81M | 2.18M | 2.09M | 1.48M | 1.03M |
| Millennium Management | 2.13M | 631.05K | 61.19K | 640.80K | 4.67M | 2.01M | 1.20M | 671.77K |
| Charles Schwab Investment Management | 2.12M | 2.07M | 1.95M | 1.84M | 1.75M | 1.55M | 1.26M | 760.52K |
| Bank of America Corp | 2.04M | 2.41M | 1.16M | 798.44K | 868.26K | 968.54K | 608.85K | 717.62K |
| UBS Group AG | 1.55M | 1.71M | 206.10K | 231.19K | 766.30K | 1.53M | 1.13M | 426.56K |
| Norges Bank Investment Management | 1.52M | — | 2.29M | — | 2.16M | — | 1.44M | — |
| Northern Trust Corp | 1.03M | 984.11K | 952.98K | 942.95K | 941.03K | 854.42K | 842.22K | 148.51K |
| Citadel Advisors | 974.28K | 506.84K | 551.49K | 422.00K | 949.19K | 3.70M | 1.04M | 481.03K |
| BNY Mellon | 878.08K | 908.60K | 922.10K | 866.26K | 868.21K | 760.51K | 651.31K | 775.05K |
| Wells Fargo & Co | 750.21K | 636.67K | 464.74K | 43.43K | 40.21K | 50.45K | 89.56K | 272.12K |
| Principal Global Investors | 742.38K | 744.73K | 728.41K | 735.75K | 744.52K | 712.17K | 602.05K | 145.57K |
| Royce & Associates | 697.37K | 549.78K | 495.29K | 454.50K | 335.00K | — | 22.50K | 22.50K |
| Point72 Asset Management | 649.98K | 1.63M | 695.29K | 1.38M | 350.63K | — | 126.38K | 6.01K |
| AQR Capital Management | 601.90K | 507.84K | 1.45M | 165.21K | 350.20K | — | 84.36K | 639.33K |
| Ruane Cunniff & Goldfarb (Sequoia) | 537.21K | 1.62M | 2.39M | 2.42M | 2.44M | 2.39M | 2.44M | 2.53M |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
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