Mason Mark

Director · Officer · MSFT, C

As of 2026-09-16, Mason Mark has 20 Form 4 transactions on record across 2 companies — 11 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.

Pattern in the record: open-market sales filed in February in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $5.4MIndirect: $0$5.4Mas of 2026-09-16
  • Direct $5.4M
  • Indirect $0
Cdirect39,347 sh$5.2M
MSFTdirect428 sh$210K

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

MSFT · 10 trades
2026-09-10: Award / grant, 1 sh ($0)2026-09-05: Award / grant, 195 sh ($0)2026-06-11: Award / grant, 1 sh ($0)2026-06-05: Award / grant, 231 sh ($0)2026-01-30: Award / grant, 145 sh ($0)2025-12-04: Award / grant, 130 sh ($0)2025-09-10: Award / grant, 125 sh ($0)2025-06-10: Award / grant, 132 sh ($0)2025-01-31: Award / grant, 151 sh ($0)2024-12-09: Award / grant, 132 sh ($0)
C · 10 trades
2026-02-20: Sale, 2,000 sh ($230K)2026-02-20: Sale, 1,627 sh ($186K)2026-02-20: Award / grant, 39,347 sh ($0)2026-02-11: Award / grant, 52,367 sh ($0)2026-01-20: Withheld for tax, 29,210 sh ($3.4M)2025-02-21: Award / grant, 34,761 sh ($0)2025-02-14: Sale, 58,465 sh ($4.9M)2025-02-14: Gift, 3,073 sh ($0)2025-02-13: Award / grant, 51,872 sh ($0)2025-01-20: Withheld for tax, 28,711 sh ($2.3M)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-02-20CSale2,000 @ $114.96$230K−0.8% of holding233,789Form 4
2026-02-20CSale1,627 @ $114.40$186K−0.7% of holding235,789Form 4
2025-02-14CSale58,465 @ $83.21$4.9M−21.2% of holding217,331Form 4
17 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-09-10MSFTAward / grant1428Form 4
2026-09-05MSFTAward / grant195427Form 4
2026-06-11MSFTAward / grant1232Form 4
2026-06-05MSFTAward / grant231231Form 4
2026-02-20CAward / grant39,34739,347Form 4
2026-02-11CAward / grant52,367237,416Form 4
2026-01-30MSFTAward / grant1451,675Form 4
2026-01-20CWithheld for tax29,210185,048Form 4
2025-12-04MSFTAward / grant1301,530Form 4
2025-09-10MSFTAward / grant1251,400Form 4
2025-06-10MSFTAward / grant1321,275Form 4
2025-02-21CAward / grant34,76134,761Form 4
2025-02-14CGift3,073214,258Form 4
2025-02-13CAward / grant51,872275,796Form 4
2025-01-31MSFTAward / grant1511,143Form 4
2025-01-20CWithheld for tax28,711223,924Form 4
2024-12-09MSFTAward / grant132992Form 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.