Henry David Philip

Officer · MKSI

As of 2026-09-16, Henry David Philip has 63 Form 4 transactions on record across 1 company — 32 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $2.5MIndirect: $0$2.5Mas of 2026-09-16
  • Direct $2.5M
  • Indirect $0
MKSIdirect10,422 sh$2.5M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

MKSI · 63 trades
2026-06-01: Sale, 6,000 sh ($1.9M)2026-05-26: Sale, 2,500 sh ($826K)2026-02-20: Sale, 2,000 sh ($523K)2026-02-17: Withheld for tax, 4,097 sh ($1.1M)2026-02-17: Option exercise, 1,841 sh2026-02-17: Option exercise, 1,278 sh2026-02-17: Option exercise, 456 sh2026-02-17: Option exercise, 1,247 sh2026-02-17: Option exercise, 2,406 sh2026-02-17: Award / grant, 2,567 sh2026-02-17: Option exercise, 1,841 sh2026-02-17: Option exercise, 456 sh2026-02-17: Option exercise, 1,247 sh2026-02-17: Option exercise, 2,406 sh2026-02-17: Option exercise, 2,054 sh2026-02-17: Option exercise, 1,841 sh2026-02-17: Option exercise, 1,278 sh2026-02-17: Option exercise, 456 sh2026-02-17: Option exercise, 1,247 sh2026-02-17: Option exercise, 2,406 sh2026-02-17: Option exercise, 2,054 sh2026-02-17: Option exercise, 1,841 sh2026-02-17: Option exercise, 1,278 sh2026-02-17: Option exercise, 456 sh2026-02-17: Option exercise, 1,247 sh2026-02-17: Option exercise, 2,406 sh2026-02-17: Award / grant, 2,567 sh2026-02-17: Option exercise, 2,054 sh2026-02-17: Option exercise, 2,054 sh2026-02-17: Option exercise, 1,278 sh2026-02-08: Award / grant, 5,522 sh2026-02-08: Award / grant, 5,522 sh2025-09-18: Sale, 5,000 sh ($650K)2025-07-03: Sale, 2,000 sh ($210K)2025-02-18: Withheld for tax, 2,372 sh ($246K)2025-02-18: Option exercise, 1,246 sh2025-02-18: Option exercise, 2,406 sh2025-02-18: Option exercise, 1,099 sh2025-02-18: Option exercise, 1,528 sh2025-02-18: Award / grant, 6,163 sh2025-02-18: Option exercise, 1,278 sh2025-02-18: Option exercise, 456 sh2025-02-18: Option exercise, 1,246 sh2025-02-18: Option exercise, 2,406 sh2025-02-18: Option exercise, 1,099 sh2025-02-18: Option exercise, 1,528 sh2025-02-18: Option exercise, 1,278 sh2025-02-18: Option exercise, 456 sh2025-02-18: Option exercise, 1,246 sh2025-02-18: Option exercise, 2,406 sh2025-02-18: Option exercise, 1,099 sh2025-02-18: Option exercise, 1,528 sh2025-02-18: Award / grant, 6,163 sh2025-02-18: Option exercise, 1,278 sh2025-02-18: Option exercise, 456 sh2025-02-18: Option exercise, 1,246 sh2025-02-18: Option exercise, 2,406 sh2025-02-18: Option exercise, 1,528 sh2025-02-18: Option exercise, 1,099 sh2025-02-18: Option exercise, 1,278 sh2025-02-18: Option exercise, 456 sh2025-02-10: Award / grant, 1,369 sh2025-02-10: Award / grant, 1,369 sh

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-06-01MKSISale6,000 @ $314.43$1.9M−36.5% of holding10,422Form 4
2026-05-26MKSISale2,500 @ $330.50$826K−13.3% of holding16,341Form 4
2026-02-20MKSISale2,000 @ $261.56$523K−9.6% of holding18,841Form 4
2025-09-18MKSISale5,000 @ $130.00$650K−24.3% of holding15,571Form 4
2025-07-03MKSISale2,000 @ $105.00$210K−8.9% of holding20,571Form 4
58 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-02-17MKSIWithheld for tax4,09720,841Form 4
2026-02-17MKSIOption exercise1,84114,147Form 4
2026-02-17MKSIOption exercise1,27815,988Form 4
2026-02-17MKSIOption exercise45617,266Form 4
2026-02-17MKSIOption exercise1,24717,723Form 4
2026-02-17MKSIOption exercise2,40618,970Form 4
2026-02-17MKSIAward / grant2,56721,375Form 4
2026-02-17MKSIOption exercise1,84122,885Form 4
2026-02-17MKSIOption exercise45619,766Form 4
2026-02-17MKSIOption exercise1,24719,310Form 4
2026-02-17MKSIOption exercise2,40618,062Form 4
2026-02-17MKSIOption exercise2,05412,093Form 4
2026-02-17MKSIOption exercise1,84114,147Form 4
2026-02-17MKSIOption exercise1,27815,988Form 4
2026-02-17MKSIOption exercise45617,266Form 4
2026-02-17MKSIOption exercise1,24717,723Form 4
2026-02-17MKSIOption exercise2,40618,970Form 4
2026-02-17MKSIOption exercise2,05424,939Form 4
2026-02-17MKSIOption exercise1,84122,885Form 4
2026-02-17MKSIOption exercise1,27821,044Form 4
2026-02-17MKSIOption exercise45619,766Form 4
2026-02-17MKSIOption exercise1,24719,310Form 4
2026-02-17MKSIOption exercise2,40618,062Form 4
2026-02-17MKSIAward / grant2,56721,375Form 4
2026-02-17MKSIOption exercise2,05412,093Form 4
2026-02-17MKSIOption exercise2,05424,939Form 4
2026-02-17MKSIOption exercise1,27821,044Form 4
2026-02-08MKSIAward / grant5,52218,808Form 4
2026-02-08MKSIAward / grant5,52218,808Form 4
2025-02-18MKSIWithheld for tax2,37222,419Form 4
2025-02-18MKSIOption exercise1,24615,020Form 4
2025-02-18MKSIOption exercise2,40616,266Form 4
2025-02-18MKSIOption exercise1,09918,672Form 4
2025-02-18MKSIOption exercise1,52819,771Form 4
2025-02-18MKSIAward / grant6,16321,300Form 4
2025-02-18MKSIOption exercise1,27824,791Form 4
2025-02-18MKSIOption exercise45623,513Form 4
2025-02-18MKSIOption exercise1,24623,057Form 4
2025-02-18MKSIOption exercise2,40621,811Form 4
2025-02-18MKSIOption exercise1,09919,405Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.