Harvey Partners, LLC
- SEC CIK
- 0001406484
- Latest filing
- Aug 14, 2026
MKSI holding history
MKS Inc in every 13F filed by Harvey Partners, LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
MKSI overviewAll 13F holders of MKSIFull Q2 2026 holdings
- Shares (Q2 2026)
- 141,066
- Value
- $62.7M
- % of portfolio
- 4.4%
- Quarters held
- 13
- Since Q2 2023
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 141,066 | $62.7M | 4.4% | −102,330−42.0% | Reduced | Holders |
| Q1 2026 | 243,396 | $55.9M | 4.5% | −45,801−15.8% | Reduced | Holders |
| Q4 2025 | 289,197 | $46.2M | 4.1% | +197+0.1% | Added | Holders |
| Q3 2025 | 289,000 | $35.8M | 3.3% | +19,401+7.2% | Added | Holders |
| Q2 2025 | 269,599 | $26.8M | 2.7% | +8,599+3.3% | Added | Holders |
| Q1 2025 | 261,000 | $20.9M | 2.5% | +71,500+37.7% | Added | Holders |
| Q4 2024 | 189,500 | $19.8M | 2.2% | +19,500+11.5% | Added | Holders |
| Q3 2024 | 170,000 | $18.5M | 2.1% | +24,500+16.8% | Added | Holders |
| Q2 2024 | 145,500 | $19.0M | 2.3% | −9,500−6.1% | Reduced | Holders |
| Q1 2024 | 155,000 | $20.6M | 2.2% | +5,500+3.7% | Added | Holders |
| Q4 2023 | 149,500 | $15.4M | 1.8% | −15,000−9.1% | Reduced | Holders |
| Q3 2023 | 164,500 | $14.2M | 1.8% | +9,500+6.1% | Added | Holders |
| Q2 2023 | 155,000 | $16.8M | 2.1% | +155,000 | New | Holders |