Cook Gregory B

Officer · ECL

As of 2026-09-16, Cook Gregory B has 18 Form 4 transactions on record across 1 company — 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.

Reconstructed holdings

Direct: $3.2MIndirect: $0$3.2Mas of 2026-09-16
  • Direct $3.2M
  • Indirect $0
ECLdirect11,673 sh$3.2M

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

ECL · 18 trades
2026-08-11: Sale, 4,567 sh ($1.3M)2026-05-04: Withheld for tax, 3,829 sh ($987K)2026-05-04: Option exercise, 8,396 sh ($0)2026-05-04: Option exercise, 8,396 sh2026-05-04: Option exercise, 8,396 sh2026-02-26: Sale, 3,519 sh ($1.1M)2026-02-26: Option exercise, 3,800 sh ($521K)2026-02-26: Option exercise, 3,800 sh ($0)2026-02-18: Withheld for tax, 1,066 sh ($323K)2026-02-18: Award / grant, 3,388 sh ($0)2025-12-03: Award / grant, 8,661 sh ($0)2025-05-19: Gift, 65 sh ($0)2025-05-15: Sale, 2,234 sh ($565K)2025-05-15: Option exercise, 2,234 sh ($263K)2025-05-15: Option exercise, 2,234 sh ($0)2025-02-19: Withheld for tax, 490 sh ($130K)2025-02-19: Award / grant, 1,546 sh ($0)2024-12-04: Award / grant, 8,272 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-08-11ECLSale4,567 @ $285.13$1.3M−28.1% of holding11,673Form 4
2026-02-26ECLSale3,519 @ $304.25$1.1M−23.2% of holding11,673Form 4
2025-05-15ECLSale2,234 @ $253.00$565K−19.6% of holding9,135Form 4
15 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-05-04ECLWithheld for tax3,82916,241Form 4
2026-05-04ECLOption exercise8,3960Form 4
2026-05-04ECLOption exercise8,39620,069Form 4
2026-05-04ECLOption exercise8,39620,069Form 4
2026-02-26ECLOption exercise3,80015,192Form 4
2026-02-26ECLOption exercise3,8000Form 4
2026-02-18ECLWithheld for tax1,06611,392Form 4
2026-02-18ECLAward / grant3,38812,458Form 4
2025-12-03ECLAward / grant8,6618,661Form 4
2025-05-19ECLGift659,070Form 4
2025-05-15ECLOption exercise2,23411,369Form 4
2025-05-15ECLOption exercise2,2340Form 4
2025-02-19ECLWithheld for tax4909,135Form 4
2025-02-19ECLAward / grant1,5469,626Form 4
2024-12-04ECLAward / grant8,2728,272Form 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.