$COLB insider trading
Over the last 12 months, Columbia Banking System insiders reported 1 buy totaling $22K and 14 sales totaling $677K across SEC Form 4 filings. 7% of those filings were made under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- $22K 1 event
- Sold · 12m
- $677K 14 events
- Events · 12m
- 15 Form 4 filings, grouped
- Insiders · 12m
- 11 distinct reporters
- 10b5-1 share
- 7% of events, not dollars
All insider trades
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | Deer Aaron JamesEVP Chief Strategy/Innov Offcr · O | ▲ Buy | 886 | $25.37 | $22K | +2.1% | — |
| Jun 8, 2026 | Moore Devine DavidEVP Chief Marketing Officer · O | ▼ Sale | 3,872 | $29.77 | $115K | -17.2% | 2 tranches |
| Mar 13, 2026 | Lakely BrockEVP, Chief Accounting Officer · O | ▼ Sale | 211 | $26.23 | $6K | -1.9% | — |
| Mar 13, 2026 | BARUFFI KUMI YAMAMOTOEVP General Counsel, Corp Sec · O | ▼ Sale | 937 | $26.23 | $25K | -1.7% | — |
| Mar 4, 2026 | Nixon Torran BSenior Executive VP · O | ▼ Sale | 4,481 | $28.55 | $128K | -4.4% | plan · 2 tranches |
| Jan 30, 2026 | GARDNER STEVEN RD | ▼ Sale | 13,725 | $29.43 | $404K | -100% | indirect |
| Jan 20, 2026 | Deer Aaron JamesEVP Chief Strategy/Innov Offcr · O | ▽ Sale to issuer | 325 | — | — | -0.8% | — |
| Jan 20, 2026 | Namdar FrankEVP Chief Credit Officer · O | ▽ Sale to issuer | 579 | — | — | -1.7% | — |
| Jan 20, 2026 | Moore Devine DavidEVP Chief Marketing Officer · O | ▽ Sale to issuer | 260 | — | — | -1.1% | — |
| Jan 20, 2026 | OGNALL ANDREW HEVP Chief Risk Officer · O | ▽ Sale to issuer | 559 | — | — | -0.8% | — |
| Jan 20, 2026 | BARUFFI KUMI YAMAMOTOEVP General Counsel, Corp Sec · O | ▽ Sale to issuer | 632 | — | — | -1.2% | — |
| Jan 20, 2026 | Anderson Drew KEVP Chief Admin Officer · O | ▽ Sale to issuer | 390 | — | — | -1.7% | — |
| Jan 20, 2026 | Nixon Torran BSenior Executive VP · O | ▽ Sale to issuer | 1,717 | — | — | -1.6% | — |
| Jan 20, 2026 | Merrywell ChristopherSenior Executive VP · O | ▽ Sale to issuer | 1,560 | — | — | -3.6% | — |
| Jan 20, 2026 | Stein ClintChair, President, CEO · O·D | ▽ Sale to issuer | 6,315 | — | — | -4.7% | 2 tranches |
Every $COLB filing on this page is one API call away
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Columbia Banking System filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $COLB feed.