Zamsky Michael

Officer · COF

As of 2026-09-16, Zamsky Michael has 19 Form 4 transactions on record across 1 company — 7 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 August in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $5.7MIndirect: $0$5.7Mas of 2026-09-16
  • Direct $5.7M
  • Indirect $0
COFdirect27,992 sh$5.7M

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

COF · 19 trades
2026-08-10: Sale, 5,473 sh ($1.2M)2026-03-09: Withheld for tax, 2,728 sh ($507K)2026-03-09: Award / grant, 6,047 sh ($0)2026-02-15: Withheld for tax, 862 sh ($179K)2026-02-15: Withheld for tax, 818 sh ($170K)2026-02-15: Withheld for tax, 769 sh ($159K)2026-02-03: Award / grant, 5,231 sh ($0)2025-08-04: Sale, 5,515 sh ($1.2M)2025-06-03: Award / grant, 12,780 sh ($0)2025-05-18: Code L, 10 sh ($0)2025-05-12: Sale, 3,328 sh ($667K)2025-05-12: Sale, 3,243 sh ($644K)2025-05-12: Sale, 2,989 sh ($596K)2025-03-10: Withheld for tax, 976 sh ($160K)2025-03-10: Award / grant, 2,164 sh ($0)2025-02-15: Withheld for tax, 1,183 sh ($239K)2025-02-15: Withheld for tax, 1,053 sh ($213K)2025-02-15: Withheld for tax, 898 sh ($182K)2025-02-04: Award / grant, 5,113 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-08-10COFSale5,473 @ $218.02$1.2M−16.4% of holding27,992Form 4
2025-08-04COFSale5,515 @ $209.59$1.2M−16.8% of holding27,364Form 4
2025-05-12COFSale3,328 @ $200.28$667K−14.2% of holding20,089Form 4
2025-05-12COFSale3,243 @ $198.53$644K−10.9% of holding26,406Form 4
2025-05-12COFSale2,989 @ $199.38$596K−11.3% of holding23,417Form 4
14 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-03-09COFWithheld for tax2,72833,465Form 4
2026-03-09COFAward / grant6,04736,193Form 4
2026-02-15COFWithheld for tax86230,915Form 4
2026-02-15COFWithheld for tax81831,777Form 4
2026-02-15COFWithheld for tax76930,146Form 4
2026-02-03COFAward / grant5,23132,595Form 4
2025-06-03COFAward / grant12,78032,869Form 4
2025-05-18COFCode L1032,879Form 4
2025-03-10COFWithheld for tax97629,649Form 4
2025-03-10COFAward / grant2,16430,625Form 4
2025-02-15COFWithheld for tax1,18328,461Form 4
2025-02-15COFWithheld for tax1,05329,644Form 4
2025-02-15COFWithheld for tax89830,697Form 4
2025-02-04COFAward / grant5,11331,595Form 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.