Updated Jul 16, 2026
Lakely Brock is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market sales: $6K.

Lakely Brock serves as the Executive Vice President and Chief Accounting Officer at Columbia Banking System, Inc. In this role, he is responsible for overseeing the company's accounting practices and ensuring compliance with financial regulations.
| Role | EVP, Chief Accounting Officer |
|---|---|
| Notability | 10/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-04-16 | COLB | COLUMBIA BANKING SYSTEM, INC. | F — Tax withholding / forfeiture | 396 | $29.10 | $12K |
| 2026-03-20 | COLB | COLUMBIA BANKING SYSTEM, INC. | F — Tax withholding / forfeiture | 211 | $26.23 | $6K |
| 2026-03-18 | COLB | COLUMBIA BANKING SYSTEM, INC. | S — Open-market sale | 211 | $26.23 | $6K |
| 2026-03-18 | COLB | COLUMBIA BANKING SYSTEM, INC. | M — Option exercise | 846 | $26.23 | $22K |
| 2026-03-03 | COLB | COLUMBIA BANKING SYSTEM, INC. | F — Tax withholding / forfeiture | 391 | $28.45 | $11K |
Lakely Brock serves as the Executive Vice President and Chief Accounting Officer at Columbia Banking System, Inc. In this role, he is responsible for overseeing the company's accounting practices and ensuring compliance with financial regulations.…
Recorded transactions: 0 open-market purchases () and 1 open-market sales ($6K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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