MKS Inc. MKSI
211.59 USD +19.32 (+10.05%)
At closeNov 9, 2026, 5:02 PM EST
212.60 +1.01 +0.48%
After hours · Nov 9, 5:02 PM ET
197.10 Day range 212.42
134.74 52-week range 447.62
- YTD
- +32.41%
- 1 year
- +36.69%
Ownership
Held by insiders 0.48%
Held by institutions 109.05%
Float held by institutions 109.58%
Institutions 984
Top institutional holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| Blackrock Inc. | 10.25% | 6,930,030 | 1.47B | Jun 29, 2026 |
| Invesco Ltd. | 6.89% | 4,661,664 | 986.36M | Jun 29, 2026 |
| Vanguard Portfolio Management LLC | 5.48% | 3,707,327 | 784.43M | Jun 29, 2026 |
| JPMORGAN CHASE & CO | 4.99% | 3,373,844 | 713.87M | Jun 29, 2026 |
| Vanguard Capital Management LLC | 4.51% | 3,049,560 | 645.26M | Jun 29, 2026 |
| State Street Corporation | 3.16% | 2,134,663 | 451.67M | Jun 29, 2026 |
Top mutual fund holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| SmallCap World Fund Inc | 3.61% | 2,437,899 | 515.84M | Sep 29, 2026 |
| iShares Trust-iShares Core S&P Mid-Cap ETF | 3.56% | 2,408,565 | 509.63M | Sep 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 3.17% | 2,143,925 | 453.63M | Jun 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund | 2.29% | 1,548,875 | 327.73M | Jun 29, 2026 |
| AIM Sector Funds (Invesco Sector Funds)-Invesco Small Cap Value Fund | 1.70% | 1,146,556 | 242.60M | Jul 30, 2026 |
| AIM Sector Fd.s -INVESCO VALUE OPPORTUNITIES Fd. | 1.31% | 882,467 | 186.72M | Jul 30, 2026 |
Insiders
| Insider | Relation | Latest transaction | Date | Shares held |
|---|---|---|---|---|
| BATRA RAJEEV | Director | Stock Award(Grant) | May 10, 2026 | 16,227 |
| BURKE KATHLEEN FLAHERTY | General Counsel | Sale | May 10, 2026 | 49,439 |
| COLELLA GERARD G | Director | Sale | May 26, 2026 | 0 |
| DONAHUE JOSEPH B | Director | Sale | May 26, 2026 | 10,032 |
| HENRY DAVID PHILIP | Officer | Sale | May 31, 2026 | 10,421 |
| LEE JOHN TSENG-CHUNG | Chief Executive Officer | Conversion of Exercise of derivative security | Oct 29, 2026 | 134,776 |