Henry David Philip (CIK 1842459) reported 12 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-02). Recent activity: Sell MKSI (6,000 shares), Sell MKSI (2,500 shares), Sell MKSI (2,000 shares), Buy MKSI (2,406 shares), Buy MKSI (1,247 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-02 | MKS INC (MKSI) | EVP, Global Str Mktg & GM, MSD | Sell | 6,000 | $1.9M |
| 2026-05-27 | MKS INC (MKSI) | EVP, Global Str Mktg & GM, MSD | Sell | 2,500 | $826,250 |
| 2026-02-23 | MKS INC (MKSI) | EVP, Global Str Mktg & GM, MSD | Sell | 2,000 | $523,120 |
| 2026-02-18 | MKS INC (MKSI) | EVP, Global Str Mktg & GM, MSD | Buy | 2,406 | $0 |
| 2026-02-18 | MKS INC (MKSI) | EVP, Global Str Mktg & GM, MSD | Buy | 1,247 | $0 |
| 2026-02-18 | MKS INC (MKSI) | EVP, Global Str Mktg & GM, MSD | Buy | 456 | $0 |
| 2026-02-18 | MKS INC (MKSI) | EVP, Global Str Mktg & GM, MSD | Buy | 1,278 | $0 |
| 2026-02-18 | MKS INC (MKSI) | EVP, Global Str Mktg & GM, MSD | Buy | 1,841 | $0 |
| 2026-02-18 | MKS INC (MKSI) | EVP, Global Str Mktg & GM, MSD | Buy | 2,054 | $0 |
| 2026-02-18 | MKS INC (MKSI) | EVP, Global Str Mktg & GM, MSD | Sell | 4,097 | $1.1M |
| 2025-09-19 | MKS INC (MKSI) | EVP, Global Str Mktg & GM, MSD | Sell | 5,000 | $650,000 |
| 2025-07-07 | MKS INC (MKSI) | EVP, Operations & Corp Mktg | Sell | 2,000 | $210,000 |
Source: SEC Form 4 filings · as of 2026-06-02