SEC CIK 1710173

Williams John Edward

Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.

Current Positions

CompanyShares OwnedAs Of
MKSIview stock →4,097.8442026-08-03

Position History — MKSI

Reported shares owned immediately after each Form 4 transaction, over time.

02,2934,5856,8782024-052024-082025-022025-042025-082026-022026-022026-08

Recent Filings — MKSI

DateActivitySharesPriceOwned After
2026-08-03Open-market sale457$288.314,097.844
2026-04-17Option exercise (derivative)1,740.714—6,812.003
2026-04-17Tax withholding825.969$269.894,554.844
2026-04-17Option exercise1,740.714—5,380.813
2026-02-20Open-market sale2,042.625$256.413,640.099
2026-02-17Option exercise (derivative)300.39—11,490.44
2026-02-17Grant / award (derivative)1,473.72—11,790.83
2026-02-17Option exercise (derivative)841—10,649.44
2026-02-17Option exercise (derivative)990.72—9,658.72
2026-02-17Option exercise (derivative)1,106—8,552.72
2026-02-17Option exercise300.39—3,940.49
2026-02-17Tax withholding1,195.49$260.745,682.72
2026-02-17Option exercise1,106—6,878.21
2026-02-17Option exercise990.72—5,772.21
2026-02-17Option exercise841—4,781.49
2026-02-08Grant / award (derivative)2,973.36—10,317.11
2025-08-15Option exercise (derivative)947.29—7,343.75
2025-08-15Tax withholding308$104.733,640.1
2025-08-15Option exercise947.29—3,948.1
2025-04-17Option exercise (derivative)1,740—8,291.04
2025-04-17Tax withholding565$63.693,000.81
2025-04-17Option exercise1,740—3,565.81
2025-02-18Option exercise (derivative)299.88—10,872.04
2025-02-18Option exercise (derivative)914.9—11,829.95
2025-02-18Option exercise (derivative)841—10,031.04
2025-02-18Grant / award (derivative)3,318.48—12,744.85
2025-02-18Option exercise (derivative)658.03—11,171.92
2025-02-18Option exercise658.03—1,585.93
2025-02-18Option exercise841—2,726.81
2025-02-18Option exercise299.88—1,885.81
2025-02-18Option exercise914.9—927.9
2025-02-18Tax withholding901$103.671,825.81
2025-02-10Grant / award (derivative)901.17—9,426.37
2024-08-16Open-market sale1,800$118.7113
2024-08-15Option exercise (derivative)946—8,525.21
2024-08-15Tax withholding307$113.911,813
2024-08-15Option exercise946—2,120
2024-05-15Grant / award (derivative)2,524.27—9,471.21
2024-05-12———1,174

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.