Williams David Michael

Officer · MRK

As of 2026-09-16, Williams David Michael has 26 Form 4 transactions on record across 1 company — 19 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.

Trades by company

MRK · 26 trades
2026-08-05: Sale, 34,705 sh ($4.5M)2026-08-05: Option exercise, 34,705 sh ($2.6M)2026-08-05: Sale, 13,542 sh ($1.7M)2026-08-05: Option exercise, 13,542 sh ($1.0M)2026-08-05: Sale, 4,600 sh ($592K)2026-08-05: Option exercise, 4,600 sh ($357K)2026-08-05: Option exercise, 4,600 sh ($0)2026-08-05: Option exercise, 13,542 sh ($0)2026-08-05: Option exercise, 34,705 sh ($0)2026-05-05: Award / grant, 4,640 sh ($0)2026-05-05: Award / grant, 13,582 sh ($0)2026-04-29: Option exercise, 1,377 sh ($152K)2026-04-29: Withheld for tax, 679 sh ($75K)2026-04-29: Option exercise, 1,377 sh ($0)2026-02-06: Sale, 5,000 sh ($610K)2026-02-06: Option exercise, 5,000 sh ($388K)2026-02-06: Option exercise, 5,000 sh ($0)2026-01-26: Award / grant, 6,112 sh ($656K)2025-11-03: Sale, 8,614 sh ($720K)2025-08-04: Option exercise, 17,119 sh ($1.4M)2025-08-04: Withheld for tax, 8,432 sh ($669K)2025-08-04: Option exercise, 17,119 sh ($0)2025-04-29: Award / grant, 18,807 sh ($0)2025-04-29: Award / grant, 4,132 sh ($0)2025-02-13: Sale, 6,000 sh ($512K)2025-01-27: Award / grant, 10,246 sh ($1.0M)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-08-05MRKSale34,705 @ $128.77$4.5M−52.3% of holding31,716Form 4
2026-08-05MRKSale13,542 @ $128.77$1.7M−29.9% of holding31,716Form 4
2026-08-05MRKSale4,600 @ $128.77$592K−12.7% of holding31,716Form 4
2026-02-06MRKSale5,000 @ $121.91$610K−14.0% of holding30,838Form 4
2025-11-03MRKSale8,614 @ $83.59$720K−26.0% of holding24,578Form 4
2025-02-13MRKSale6,000 @ $85.34$512K−19.9% of holding24,123Form 4
20 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-08-05MRKOption exercise34,70566,421Form 4
2026-08-05MRKOption exercise13,54245,258Form 4
2026-08-05MRKOption exercise4,60036,316Form 4
2026-08-05MRKOption exercise4,6000Form 4
2026-08-05MRKOption exercise13,5420Form 4
2026-08-05MRKOption exercise34,7050Form 4
2026-05-05MRKAward / grant4,6404,640Form 4
2026-05-05MRKAward / grant13,58213,582Form 4
2026-04-29MRKOption exercise1,37732,395Form 4
2026-04-29MRKWithheld for tax67931,716Form 4
2026-04-29MRKOption exercise1,3772,755Form 4
2026-02-06MRKOption exercise5,00035,838Form 4
2026-02-06MRKOption exercise5,0004,600Form 4
2026-01-26MRKAward / grant6,11230,838Form 4
2025-08-04MRKOption exercise17,11941,445Form 4
2025-08-04MRKWithheld for tax8,43233,013Form 4
2025-08-04MRKOption exercise17,1190Form 4
2025-04-29MRKAward / grant18,80718,807Form 4
2025-04-29MRKAward / grant4,1324,132Form 4
2025-01-27MRKAward / grant10,24630,123Form 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.