SEC CIK 1842459
Henry David Philip
Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| MKSIview stock → | 10,421.527 | 2026-06-01 |
Position History — MKSI
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — MKSI
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2026-06-01 | Open-market sale | 6,000 | $314.43 | 10,421.527 |
| 2026-05-26 | Open-market sale | 2,500 | $330.50 | 16,341.368 |
| 2026-02-20 | Open-market sale | 2,000 | $261.56 | 18,841.368 |
| 2026-02-17 | Option exercise (derivative) | 1,840.64 | — | 14,147.42 |
| 2026-02-17 | Option exercise (derivative) | 2,054 | — | 12,093.42 |
| 2026-02-17 | Option exercise (derivative) | 1,247.16 | — | 17,722.51 |
| 2026-02-17 | Option exercise (derivative) | 1,278 | — | 15,988.06 |
| 2026-02-17 | Option exercise (derivative) | 2,405.57 | — | 18,969.66 |
| 2026-02-17 | Option exercise (derivative) | 456.45 | — | 17,266.06 |
| 2026-02-17 | Grant / award (derivative) | 2,567.13 | — | 21,375.23 |
| 2026-02-17 | Option exercise | 2,054 | — | 24,938.64 |
| 2026-02-17 | Option exercise | 1,840.64 | — | 22,884.64 |
| 2026-02-17 | Option exercise | 1,278 | — | 21,044 |
| 2026-02-17 | Option exercise | 456.45 | — | 19,766 |
| 2026-02-17 | Option exercise | 1,247.16 | — | 19,309.55 |
| 2026-02-17 | Tax withholding | 4,097.27 | $260.74 | 20,841.37 |
| 2026-02-17 | Option exercise | 2,405.57 | — | 18,062.39 |
| 2026-02-08 | Grant / award (derivative) | 5,521.95 | — | 18,808.11 |
| 2025-09-18 | Open-market sale | 5,000 | $130.00 | 15,571.18 |
| 2025-07-03 | Open-market sale | 2,000 | $105.00 | 20,571.18 |
| 2025-02-18 | Option exercise (derivative) | 1,246 | — | 15,020.1 |
| 2025-02-18 | Option exercise (derivative) | 2,406 | — | 16,266.1 |
| 2025-02-18 | Option exercise (derivative) | 1,278 | — | 13,286.16 |
| 2025-02-18 | Option exercise (derivative) | 1,528.34 | — | 19,771.47 |
| 2025-02-18 | Grant / award (derivative) | 6,162.89 | — | 21,299.81 |
| 2025-02-18 | Option exercise (derivative) | 455.94 | — | 14,564.16 |
| 2025-02-18 | Option exercise (derivative) | 1,099.37 | — | 18,672.1 |
| 2025-02-18 | Option exercise | 1,528.34 | — | 18,305.78 |
| 2025-02-18 | Option exercise | 1,099.37 | — | 19,405.15 |
| 2025-02-18 | Option exercise | 2,406 | — | 21,811.15 |
| 2025-02-18 | Option exercise | 1,246 | — | 23,057.15 |
| 2025-02-18 | Option exercise | 455.94 | — | 23,513.09 |
| 2025-02-18 | Tax withholding | 2,372 | $103.67 | 22,419.09 |
| 2025-02-18 | Option exercise | 1,278 | — | 24,791.09 |
| 2025-02-10 | Grant / award (derivative) | 1,369.2 | — | 15,136.92 |
| 2024-02-15 | Option exercise (derivative) | 1,528 | — | 18,518.72 |
| 2024-02-15 | Option exercise (derivative) | 581.16 | — | 20,046.72 |
| 2024-02-15 | Option exercise (derivative) | 1,162.32 | — | 20,627.88 |
| 2024-02-15 | Option exercise (derivative) | 1,100 | — | 17,418.72 |
| 2024-02-15 | Option exercise (derivative) | 1,246 | — | 13,767.72 |
| 2024-02-15 | Option exercise (derivative) | 2,405 | — | 15,013.72 |
| 2024-02-15 | Grant / award (derivative) | 3,835.29 | — | 21,790.2 |
| 2024-02-15 | Option exercise | 1,100 | — | 15,570.9 |
| 2024-02-15 | Option exercise | 1,528 | — | 14,470.9 |
| 2024-02-15 | Option exercise | 581.16 | — | 12,942.9 |
| 2024-02-15 | Tax withholding | 2,692 | $122.15 | 16,529.9 |
| 2024-02-15 | Option exercise | 2,405 | — | 17,975.9 |
| 2024-02-15 | Option exercise | 1,246 | — | 19,221.9 |
| 2024-02-15 | Option exercise | 1,162.32 | — | 12,361.74 |
| 2024-02-05 | Grant / award (derivative) | 7,216.57 | — | 17,954.92 |
| 2023-11-07 | Open-market buy | 2,500 | $68.34 | 11,073.35 |
| 2023-02-15 | Option exercise (derivative) | 1,098 | — | 10,738.35 |
| 2023-02-15 | Grant / award (derivative) | 3,739.16 | — | 16,277.13 |
| 2023-02-15 | Option exercise (derivative) | 1,171.78 | — | 15,105.35 |
| 2023-02-15 | Option exercise (derivative) | 1,161 | — | 13,944.35 |
| 2023-02-15 | Option exercise (derivative) | 581 | — | 13,363.35 |
| 2023-02-15 | Option exercise (derivative) | 1,527 | — | 11,836.35 |
| 2023-02-15 | Option exercise | 581 | — | 7,427.25 |
| 2023-02-15 | Option exercise | 1,098 | — | 10,052.25 |
| 2023-02-15 | Option exercise | 1,527 | — | 8,954.25 |
| 2023-02-15 | Tax withholding | 1,629 | $100.29 | 8,423.25 |
| 2023-02-15 | Option exercise | 1,161 | — | 6,846.25 |
| 2023-02-15 | Option exercise | 1,171.78 | — | 5,685.25 |
| 2023-02-08 | Grant / award (derivative) | 4,583.34 | — | 12,537.97 |
| 2022-08-17 | Grant / award (derivative) | 226.66 | — | 7,954.63 |
| 2022-04-29 | Grant / award (derivative) | 3,070.71 | — | 7,727.97 |
| 2022-04-18 | Option exercise (derivative) | 479.34 | — | 4,657.26 |
| 2022-04-18 | Option exercise | 479.34 | — | 4,497.58 |
| 2022-04-18 | Tax withholding | 162 | $114.99 | 4,335.58 |
| 2022-02-15 | Option exercise (derivative) | 1,171 | — | 6,877.6 |
| 2022-02-15 | Option exercise (derivative) | 580 | — | 5,136.6 |
| 2022-02-15 | Option exercise (derivative) | 1,161 | — | 5,716.6 |
| 2022-02-15 | Tax withholding | 856 | $152.55 | 4,018.24 |
| 2022-02-15 | Option exercise | 580 | — | 4,874.24 |
| 2022-02-15 | Option exercise | 1,161 | — | 4,294.24 |
| 2022-02-15 | Option exercise | 1,171 | — | 3,133.24 |
| 2022-01-21 | Grant / award (derivative) | 3,484.32 | — | 8,048.6 |
| 2021-05-20 | Open-market sale | 284 | $186.70 | 1,805.58 |
| 2021-04-15 | Option exercise (derivative) | 479 | — | 4,564.28 |
| 2021-04-15 | Option exercise | 479 | — | 2,230.58 |
| 2021-04-15 | Tax withholding | 141 | $188.26 | 2,089.58 |
| 2021-04-13 | Option exercise (derivative) | 356.38 | — | 5,043.28 |
| 2021-04-13 | Option exercise | 356.38 | — | 1,856.58 |
| 2021-04-13 | Tax withholding | 105 | $186.52 | 1,751.58 |
| 2021-02-16 | Grant / award (derivative) | 1,742.16 | — | 6,569.65 |
| 2021-02-16 | Option exercise (derivative) | 1,170 | — | 5,399.65 |
| 2021-02-16 | Option exercise | 1,170 | — | 1,844.2 |
| 2021-02-16 | Tax withholding | 344 | $172.20 | 1,500.2 |
| 2021-02-08 | — | — | — | 674.2 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.