BARUFFI KUMI YAMAMOTO

Officer · COLB

As of 2026-09-16, BARUFFI KUMI YAMAMOTO has 19 Form 4 transactions on record across 1 company — 10 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: $389KIndirect: $0$389Kas of 2026-09-16
  • Direct $389K
  • Indirect $0
COLBdirect13,083 sh$389K

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

COLB · 19 trades
2026-03-13: Option exercise, 2,381 sh ($62K)2026-03-13: Sale, 937 sh ($25K)2026-03-13: Option exercise, 2,381 sh ($0)2026-03-01: Withheld for tax, 1,799 sh ($51K)2026-02-18: Award / grant, 8,322 sh ($260K)2026-02-15: Withheld for tax, 1,036 sh ($33K)2026-02-02: Award / grant, 5,093 sh ($151K)2026-02-02: Withheld for tax, 2,110 sh ($63K)2026-01-20: Withheld for tax, 1,508 sh ($43K)2026-01-20: Disposition, 632 sh ($0)2025-02-28: Withheld for tax, 1,799 sh ($48K)2025-02-25: Award / grant, 7,142 sh ($190K)2025-02-25: Award / grant, 3,571 sh ($95K)2025-02-25: Award / grant, 3,571 sh ($95K)2025-02-14: Withheld for tax, 1,031 sh ($28K)2025-02-14: Award / grant, 1,012 sh ($28K)2025-02-14: Withheld for tax, 442 sh ($12K)2025-01-01: Withheld for tax, 772 sh ($21K)2025-01-01: Withheld for tax, 689 sh ($19K)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-03-13COLBSale937 @ $26.23$25K−1.7% of holding53,715Form 4
18 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-03-13COLBOption exercise2,38154,652Form 4
2026-03-13COLBOption exercise2,38113,083Form 4
2026-03-01COLBWithheld for tax1,79952,271Form 4
2026-02-18COLBAward / grant8,32215,464Form 4
2026-02-15COLBWithheld for tax1,03654,070Form 4
2026-02-02COLBAward / grant5,09357,216Form 4
2026-02-02COLBWithheld for tax2,11055,106Form 4
2026-01-20COLBWithheld for tax1,50852,123Form 4
2026-01-20COLBDisposition63253,631Form 4
2025-02-28COLBWithheld for tax1,79954,263Form 4
2025-02-25COLBAward / grant7,1427,142Form 4
2025-02-25COLBAward / grant3,57117,281Form 4
2025-02-25COLBAward / grant3,57120,852Form 4
2025-02-14COLBWithheld for tax1,03156,062Form 4
2025-02-14COLBAward / grant1,01257,535Form 4
2025-02-14COLBWithheld for tax44257,093Form 4
2025-01-01COLBWithheld for tax77256,523Form 4
2025-01-01COLBWithheld for tax68957,295Form 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.