Security record
AMTM
Amentum Holdings, Inc. · Industrials · Aerospace & Defense
109Tracked holders
-3Δ holders
117.16MShares held
$2.42BReported value
+7New positions
−9Exits
Momentum inputs (comparable managers):
holder breadth -2.7% ·
share flow +4.2% ·
net new positions -1.8%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 109 | -3 | 117.16M | $2.42B | +7 | −9 |
| Q1 2026 | 114 | +1 | 111.17M | $2.90B | +6 | −6 |
| Q4 2025 | 114 | +3 | 114.62M | $3.32B | +4 | — |
| Q3 2025 | 18 | 0 | 67.20M | $1.61B | +1 | −2 |
| Q2 2025 | 16 | +3 | 69.96M | $1.65B | +4 | −1 |
| Q1 2025 | 10 | -3 | 25.91M | $471.64M | +2 | −5 |
| Q4 2024 | 13 | -2 | 20.67M | $434.75M | +2 | −4 |
| Q3 2024 | 14 | +14 | 12.37M | $393.08M | +14 | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Invesco Ltd. | 24.95M | +16.2% | $515.80M | 0.0% | ▲ Add | 3 | SEC ↗ ×9 |
| 2 | BlackRock ✦ (passive) | 17.91M | +0.4% | $370.14M | 0.0% | ▲ Add | 5 | SEC ↗ ×13 |
| 3 | PRIMECAP Management ✦ | 12.29M | +1.7% | $253.94M | 0.1% | ▲ Add | 8 | SEC ↗ |
| 4 | Vanguard Capital Management Llc | 6.71M | +0.9% | $138.74M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Fidelity (FMR) ✦ | 5.68M | +1.8% | $117.39M | 0.0% | ▲ Add | 5 | SEC ↗ ×5 |
| 6 | Dimensional Fund Advisors Lp | 5.54M | +46.2% | $114.46M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 7 | State Street Global Advisors ✦ (passive) | 5.15M | +1.4% | $106.49M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 8 | Geode Capital Management ✦ (passive) | 2.72M | -3.5% | $56.17M | 0.0% | ▼ Trim | 8 | SEC ↗ ×2 |
| 9 | Goldman Sachs Group ✦ | 2.71M | +139.7% | $56.05M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 10 | Morgan Stanley ✦ | 2.66M | +19.1% | $55.03M | 0.0% | ▲ Add | 4 | SEC ↗ ×11 |
| 11 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 2.32M | -16.8% | $47.93M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 12 | Millennium Management ✦ | 2.13M | +237.2% | $43.98M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 13 | Charles Schwab Investment… | 2.12M | +2.5% | $43.82M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | Bank Of America Corp /De/ | 2.04M | -15.1% | $42.23M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 15 | Voya Investment Management Llc | 1.97M | +64.6% | $40.81M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 16 | UBS Group AG | 1.55M | -9.7% | $31.94M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 17 | Norges Bank ✦ (passive) | 1.52M | New | $31.34M | 0.0% | New | 1 | SEC ↗ |
| 18 | Loomis Sayles & Co L P | 1.04M | -3.6% | $21.55M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 19 | Qube Research & Technologies Ltd | 1.03M | +1237.0% | $21.38M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 20 | Northern Trust Corp | 1.03M | +4.7% | $21.29M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 21 | Bank of New York Mellon Corp | 878.08K | -3.4% | $18.15M | 0.0% | ▼ Trim | 3 | SEC ↗ ×13 |
| 22 | Russell Investments Group, Ltd. | 840.64K | +17.8% | $17.38M | 0.0% | ▲ Add | 3 | SEC ↗ ×7 |
| 23 | Wells Fargo & Company/Mn | 750.21K | +17.8% | $15.51M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 24 | Principal Financial Group Inc | 742.38K | -0.3% | $15.35M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 25 | Hrt Financial Lp | 671.85K | New | $13.89M | 0.0% | New | 1 | SEC ↗ |
| 26 | Citadel Advisors ✦ | 670.68K | +731.7% | $13.86M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 27 | Point72 Asset Management ✦ | 649.98K | -60.1% | $13.44M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 28 | AQR Capital Management ✦ | 601.90K | +18.5% | $12.42M | 0.0% | ▲ Add | 5 | SEC ↗ ×7 |
| 29 | First Trust Advisors Lp | 547.91K | +140.2% | $11.33M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 30 | Nuveen, LLC | 421.50K | -51.6% | $8.71M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 31 | Hotchkis & Wiley Capital Management… | 402.13K | +20.5% | $8.31M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 32 | Legal & General Group Plc | 349.05K | +4.2% | $7.21M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 33 | Jane Street Group, Llc | 343.69K | +79.0% | $7.10M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 34 | Susquehanna International Group, Llp | 332.45K | +0.7% | $6.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 35 | Ameriprise Financial Inc | 319.48K | -3.1% | $6.60M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 36 | Swiss National Bank | 318.09K | +1.5% | $6.57M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 37 | Two Sigma Investments ✦ | 284.27K | -68.4% | $5.88M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 38 | Rhumbline Advisers | 284.06K | -5.4% | $5.87M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 39 | Fifth Third Bancorp | 281.81K | +3.1% | $5.83M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 40 | California Public Employees… | 266.38K | -3.9% | $5.51M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 41 | UBS AM, a distinct business unit of… | 249.72K | +0.7% | $5.16M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 42 | Raymond James Financial Inc | 224.40K | -8.7% | $4.64M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 43 | D. E. Shaw & Co. ✦ | 191.49K | +189.4% | $3.96M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 44 | Sei Investments Co | 190.07K | -35.5% | $3.93M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 45 | Gotham Asset Management ✦ | 156.11K | -70.0% | $3.23M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 46 | T. Rowe Price ✦ | 152.08K | +4.7% | $3.15M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 47 | Barclays Plc | 151.78K | +224.2% | $3.14M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 48 | Prudential Financial Inc | 139.95K | -0.3% | $2.89M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 49 | Focus Partners Wealth | 138.34K | -94.7% | $2.86M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 50 | JPMorgan Chase ✦ | 119.17K | +40.6% | $2.60M | 0.0% | ▲ Add | 4 | SEC ↗ ×9 |
| 51 | Soros Fund Management ✦ | 118.28K | +9.9% | $2.44M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 52 | State Board Of Administration Of… | 117.14K | -3.1% | $2.42M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 53 | Alliancebernstein L.P. | 79.94K | +8.3% | $2.08M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 54 | Quantinno Capital Management LP | 99.07K | -31.9% | $2.05M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 55 | State Of Wisconsin Investment Board | 98.42K | -3.5% | $2.03M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 56 | GAMCO Investors ✦ | 97.12K | +1.9% | $2.01M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 57 | LPL Financial LLC | 96.43K | +8.6% | $1.99M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 58 | Royal Bank Of Canada | 92.04K | -60.3% | $1.90M | 0.0% | ▼ Trim | 3 | SEC ↗ ×7 |
| 59 | Holocene Advisors, LP | 89.04K | -27.7% | $1.84M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 60 | Balyasny Asset Management L.P. | 85.39K | +365.5% | $1.76M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 61 | Wealth Enhancement Advisory… | 76.52K | -3.3% | $1.61M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 62 | Osaic Holdings, Inc. | 76.28K | +181.9% | $1.58M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 63 | New York State Common Retirement… | 75.15K | -85.0% | $1.55M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 64 | Creative Planning | 54.40K | -16.0% | $1.12M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 65 | Manufacturers Life Insurance… | 273.62K | +568.7% | $1.12M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 66 | Victory Capital Management Inc | 50.74K | +1.8% | $1.05M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 67 | Envestnet Asset Management Inc | 49.42K | -19.8% | $1.02M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 68 | Bridgewater Associates ✦ | 47.22K | +176.9% | $976,099 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 69 | Cerity Partners LLC | 42.88K | +1.0% | $886,229 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 70 | Zurcher Kantonalbank (Zurich… | 40.96K | 0.0% | $846,705 | 0.0% | Held | 3 | SEC ↗ |
| 71 | Jones Financial Companies Lllp | 41.50K | +10.2% | $840,411 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 72 | Lido Advisors, LLC | 40.31K | -19.9% | $833,194 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 73 | Universal- Beteiligungs- und… | 33.81K | -2.4% | $698,915 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 74 | Captrust Financial Advisors | 33.73K | +5.6% | $697,199 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 75 | Neuberger Berman Group LLC | 32.12K | +56.3% | $663,920 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 76 | Citigroup Inc | 31.49K | -22.6% | $650,816 | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 77 | Corient Private Wealth LP | 31.35K | +6.2% | $648,089 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 78 | Group One Trading Llc | 27.71K | New | $572,766 | 0.0% | New | 1 | SEC ↗ |
| 79 | Blair William & Co/Il | 27.28K | -44.7% | $563,836 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 80 | Pictet Asset Management Holding SA | 26.89K | 0.0% | $555,878 | 0.0% | Held | 3 | SEC ↗ |
| 81 | Us Bancorp \De\ | 22.68K | -6.6% | $468,816 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 82 | Hsbc Holdings Plc | 22.22K | New | $460,053 | 0.0% | New | 1 | SEC ↗ ×3 |
| 83 | Tidal Investments LLC | 22.07K | +54.0% | $456,208 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 84 | Deutsche Bank Ag\ | 21.82K | +9.9% | $451,040 | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 85 | Grantham, Mayo, Van Otterloo & Co.… | 21.60K | New | $446,493 | 0.0% | New | 1 | SEC ↗ |
| 86 | Bank Of Montreal /Can/ | 20.48K | +2.6% | $423,424 | 0.0% | ▲ Add | 3 | SEC ↗ ×8 |
| 87 | Commonwealth Equity Services, Llc | 18.24K | +4.3% | $377,024 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 88 | CIBC Asset Management Inc | 17.10K | -7.2% | $353,540 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 89 | Simplex Trading, Llc | 17.00K | New | $351,452 | 0.0% | New | 1 | SEC ↗ |
| 90 | Truist Financial Corp | 15.32K | -6.5% | $316,716 | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 91 | First Manhattan Co. Llc. | 14.24K | +0.9% | $294,382 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 92 | HighTower Advisors, LLC | 14.11K | -24.2% | $291,612 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 93 | Franklin Resources Inc | 13.59K | +14.7% | $280,841 | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 94 | Mercer Global Advisors Inc /Adv | 13.00K | -16.0% | $268,635 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 95 | Cetera Investment Advisers | 12.88K | -47.1% | $266,333 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 96 | Mitsubishi UFJ Trust & Banking Corp | 12.50K | New | $258,354 | 0.0% | New | 1 | SEC ↗ |
| 97 | Pnc Financial Services Group, Inc. | 12.02K | -12.1% | $248,454 | 0.0% | ▼ Trim | 3 | SEC ↗ ×6 |
| 98 | DZ BANK AG Deutsche Zentral… | 9.50K | 0.0% | $196,365 | 0.0% | Held | 2 | SEC ↗ |
| 99 | Ensign Peak Advisors, Inc | 9.39K | 0.0% | $194,009 | 0.0% | Held | 3 | SEC ↗ |
| 100 | Danske Bank A/S | 8.54K | +5.0% | $176,439 | 0.0% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Norges Bank | $31.34M | 0.0% |
| Hrt Financial Lp | $13.89M | 0.0% |
| Group One Trading Llc | $572,766 | 0.0% |
| Hsbc Holdings Plc | $460,053 | 0.0% |
| Grantham, Mayo, Van Otterloo… | $446,493 | 0.0% |
| Simplex Trading, Llc | $351,452 | 0.0% |
| Mitsubishi UFJ Trust &… | $258,354 | 0.0% |
Exited
| Toronto Dominion Bank | $40.82M | was 0.1% |
| Walleye Trading LLC | $744,532 | was 0.0% |
| Stifel Financial Corp | $572,074 | was 0.0% |
| Mackenzie Financial Corp | $424,322 | was 0.0% |
| Canada Pension Plan… | $302,372 | was 0.0% |
| Brown Advisory Inc | $258,922 | was 0.0% |
| Peak6 Llc | $72,581 | was 0.0% |
| Nomura Asset Management Co Ltd | $70,416 | was 0.0% |
| Kayne Anderson Rudnick… | $209 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 482 holders, 210.87M shares, $5.10B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Aug 06
SC 13G — PRIMECAP MANAGEMENT CO/CA/
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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