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| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| MKSI | Henry David Philip | EVP, Global Str Mktg & GM, MSD | Jun 01 '26 | Sale | 314.43 | 6,000 | 1,886,583 | 10,422 | Jun 02 12:00 AM |
| MKSI | Henry David Philip | EVP, Global Str Mktg & GM, MSD | May 26 '26 | Sale | 330.50 | 2,500 | 826,250 | 16,341 | May 27 12:00 AM |
| MKSI | Henry David Philip | EVP, Global Str Mktg & GM, MSD | Feb 20 '26 | Sale | 261.56 | 2,000 | 523,120 | 18,841 | Feb 23 12:00 AM |
| MKSI | Henry David Philip | EVP, Global Str Mktg & GM, MSD | Feb 17 '26 | Option Exercise | 0.00 | 18,564 | 0 | 24,939 | Feb 18 12:00 AM |
| MKSI | Henry David Philip | EVP, Global Str Mktg & GM, MSD | Sep 18 '25 | Sale | 130.00 | 5,000 | 650,000 | 15,571 | Sep 19 12:00 AM |
| MKSI | Henry David Philip | EVP, Operations & Corp Mktg | Jul 03 '25 | Sale | 105.00 | 2,000 | 210,000 | 20,571 | Jul 07 12:00 AM |
| MKSI | Henry David Philip | EVP, Operations & Corp Mktg | Feb 18 '25 | Option Exercise | 0.00 | 16,026 | 0 | 24,791 | Feb 19 12:00 AM |
| MKSI | Henry David Philip | EVP, Operations & Corp Mktg | Feb 15 '24 | Option Exercise | 0.00 | 16,044 | 0 | 20,628 | Feb 16 12:00 AM |
| MKSI | Henry David Philip | EVP, Operations & Corp Mktg | Nov 07 '23 | Buy | 68.34 | 2,500 | 170,862 | 11,073 | Nov 08 12:00 AM |