MKSI
MKS Inc. · Technology · Hardware, Equipment & Parts
Momentum inputs (comparable managers):
holder breadth +25.0% ·
share flow +30.0% ·
net new positions +20.0%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2026
| 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 | Assenagon Asset Management S.A. | 442.27K | +821.1% | $117.36M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 2 | Robeco Institutional Asset… | 80.05K | New | $21.24M | 0.0% | New | 1 | SEC ↗ |
| 3 | Wealth Enhancement Advisory… | 14.88K | -4.1% | $3.55M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 4 | TD Waterhouse Canada Inc. | 279 | +9200.0% | $75,592 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | Assetmark, Inc | 82 | 0.0% | $21,760 | 0.0% | Held | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Robeco Institutional Asset… | $21.24M | 0.0% |
Exited
| No tracked exits this quarter. |
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