Legal Insider Trading Data | Free and Professional Subscription Services | Insider Insights urn:uuid:4bd0e168-bb1e-aaa6-1bdf-68b1ebed8623 2026-06-18T19:01:32-04:00 Jonathan Moreland Profit from legal insider trading. InsiderInsights.com provides free insider trading data tools and resources, and professional grade subscription based real time Form 4 data, analysis and services MKSI: SCHREINER JAMES ALAN (VP,COO) Sold (S) 3,500 Shares of MKS INC for $345.52-$347.00 on 6/12 urn:uuid:218c86a2-9a35-a5d9-438d-b116f0b74ec6 2026-06-16T17:35:53-04:00 MKSI: SCHREINER JAMES ALAN (VP,COO) Sold (AS) 781 Shares of MKS INC for $317.42 on 6/10 urn:uuid:6ef1d84e-aa2d-a4dc-8724-8a5f19340741 2026-06-11T10:40:58-04:00 MKSI: MCCARTHY MICHELLE M (VP,CAO) Sold (AS) 2,434 Shares of MKS INC for $315.23 on 6/5 urn:uuid:bcde8cc8-2c48-c64a-fc68-0cab4d63be5d 2026-06-08T10:53:40-04:00 MKSI: DONLAN RENEE MARTEL (VP,GC,CCO) Filed a Form 3, Becoming a Registered Insider at MKS INC With Initial Direct Holdings of 9,471 urn:uuid:6d498be4-9ad7-683b-8781-85df535e37f9 2026-06-04T14:24:35-04:00 MKSI: HENRY DAVID PHILIP (VP,SO) Sold (S) 6k Shares of MKS INC for $314.43 on 6/1 urn:uuid:d701878e-342e-b7d8-0bba-f7ed509abe1c 2026-06-02T15:13:26-04:00 MKSI: MORA ELIZABETH (DIR) Sold (AS) 300 Shares of MKS INC for $318.02 on 6/1 urn:uuid:0e7783db-f697-72bf-6ba9-499356c2a9cd 2026-06-02T15:08:37-04:00 MKSI: DONAHUE JOSEPH B (DIR) Sold (S) 2,100 Shares of MKS INC for $327.95 on 5/27 urn:uuid:eac80b13-b1ca-9c9d-c4be-06f26abc50fe 2026-05-28T14:07:51-04:00 MKSI: COLELLA GERALD G (DIR) Sold (AS) 20k Shares of MKS INC for $330.38-$338.58 on 5/27 urn:uuid:85f89300-063b-3fcb-25e8-a003e79bd668 2026-05-28T14:04:31-04:00 MKSI: HENRY DAVID PHILIP (VP,SO) Sold (AS) 2,500 Shares of MKS INC for $330.50 on 5/26 urn:uuid:fd8f389d-2332-96a0-d875-2676ceb6123a 2026-05-27T17:07:38-04:00 MKSI: MAYAMPURATH RAMAKUMAR (VP,CFO) Sold (AS) 8,810 Shares of MKS INC for $315.48 on 5/22 urn:uuid:b9d4d71d-294d-38d4-758e-1f4fb78706b6 2026-05-26T14:18:47-04:00