MKSI
MKS Inc. · Technology · Hardware, Equipment & Parts
Momentum inputs (comparable managers): holder breadth 0.0% · share flow -1.0% · net new positions 0.0% · formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 5 | +1 | 537.56K | $142.25M | +1 | n/a |
| Q2 2026 | 148 | +20 | 50.75M | $22.40B | +22 | −1 |
| Q1 2026 | 130 | +1 | 48.54M | $11.08B | +8 | −8 |
| Q4 2025 | 129 | 0 | 56.69M | $9.04B | +1 | n/a |
| Q3 2025 | 19 | +1 | 31.65M | $3.92B | +2 | −2 |
| Q2 2025 | 16 | 0 | 30.77M | $3.06B | +3 | −3 |
| Q1 2025 | 13 | -3 | 12.48M | $999.93M | n/a | −3 |
| Q4 2024 | 16 | +1 | 11.42M | $1.19B | +3 | −2 |
| Q3 2024 | 14 | 0 | 9.98M | $1.09B | +1 | −1 |
| Q2 2024 | 14 | n/a | 13.33M | $1.74B | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 7.46M | n/a | $740.89M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 2 | BlackRock ✦ (passive) | 7.32M | n/a | $726.97M | 0.0% | n/c | 1 | SEC ↗ ×16 |
| 3 | T. Rowe Price ✦ | 4.13M | +17.5% | $410.27M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 4 | Fidelity (FMR) ✦ | 3.83M | n/a | $380.49M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 5 | Wellington Management ✦ | 3.00M | -7.7% | $298.03M | 0.1% | ▼ Trim | 5 | SEC ↗ ×8 |
| 6 | State Street Global Advisors ✦ (passive) | 2.06M | -1.2% | $204.45M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 7 | Geode Capital Management ✦ (passive) | 1.26M | +2.9% | $125.02M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 8 | Norges Bank ✦ (passive) | 859.41K | -5.0% | $85.39M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 9 | Glenview Capital ✦ | 232.30K | New | $23.08M | 0.7% | New | 1 | SEC ↗ |
| 10 | Gotham Asset Management ✦ | 187.93K | +456.1% | $18.67M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 185.05K | +163.6% | $18.39M | 0.0% | ▲ Add | 5 | SEC ↗ ×5 |
| 12 | Citadel Advisors ✦ | 146.04K | New | $14.51M | 0.0% | New | 1 | SEC ↗ ×2 |
| 13 | D. E. Shaw & Co. ✦ | 96.29K | -75.5% | $9.57M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 14 | GAMCO Investors ✦ | 8.48K | -0.7% | $843,070 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 15 | Millennium Management ✦ | 4.82K | -99.1% | $478,518 | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 16 | Two Sigma Investments ✦ | 4.80K | New | $476,928 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Glenview Capital | $23.08M | 0.7% |
| Citadel Advisors | $14.51M | 0.0% |
| Two Sigma Investments | $476,928 | 0.0% |
Exited
| Point72 Asset Management | $28.84M | was 0.1% |
| Fisher Asset Management | $4.26M | was 0.0% |
| Renaissance Technologies | $3.03M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 613 holders, 66.84M shares, $14.15B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Director · 300 sh · $75,288
Officer, Director · 10.00K sh · $3.02M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology