COLB Insider Trading
COLUMBIA BANKING SYSTEM, INC. | State Commercial Banks
Comprehensive Trading Performance Summary
The investment history of corporate insiders at COLUMBIA BANKING SYSTEM, INC. provides a unique lens into the internal conviction of the company's leadership. By analyzing SEC Form 4 filings, investors can track how directors and officers are allocating their own capital. High-conviction buying often signals that management believes the current market price significantly undervalues future growth prospects, while strategic selling might occur for personal liquidity or portfolio diversification. Monitoring these shifts in ownership is essential for understanding the alignment between management and shareholders in the State Commercial Banks sector.
Transactions on Chart
Open Full Chart| Filing Date | Trade Date | Reporting Person | Relationship | Type | Price | Qty | Total, $ | Owned After | Change, % |
|---|---|---|---|---|---|---|---|---|---|
| 2026-03-18 00:26 | 2026-03-13 | BARUFFI KUMI YAMAMOTO | Officer - EVP General Counsel, Corp Sec | OPT+S | $26.23 | 937 | $24,578 | 53,715 | 0.0% |
| 2026-03-18 00:31 | 2026-03-13 | Lakely Brock | Officer - EVP, Chief Accounting Officer | OPT+S | $26.23 | 211 | $5,535 | 11,104 | 0.0% |
| 2026-03-06 00:27 | 2026-03-03 | Nixon Torran B | Officer - Senior Executive VP | SELL | $28.55 | 4,481 | $127,932 | 98,229 | -4.4% |
| 2026-02-04 01:13 | 2026-01-30 | GARDNER STEVEN R | Director | SELL | $29.43 | 13,725 | $403,927 | 0 | -100.0% |
| 2025-03-06 02:10 | 2025-03-04 | Nixon Torran B | Officer - Senior Executive VP | SELL | $25.99 | 4,481 | $116,461 | 104,869 | -4.1% |
| 2024-02-08 02:21 | 2024-02-06 | SEATON ELIZABETH WHITEHEAD | Director | BUY | $18.48 | 2,685 | $49,619 | 25,001 | +12.0% |
| 2024-02-03 05:22 | 2024-02-01 | Lund Randal Lee | Director | BUY | $19.29 | 1,000 | $19,288 | 17,149 | +6.2% |
| 2024-02-01 23:30 | 2024-02-01 | Deer Aaron James | Officer - Chief Strategy/Innovation Offc | BUY | $19.32 | 2,000 | $38,648 | 36,850 | +5.7% |
| 2024-02-01 23:25 | 2024-01-31 | Nixon Torran B | Officer - Senior Executive VP | BUY | $20.49 | 3,650 | $74,802 | 135,750 | +2.8% |
| 2024-02-02 03:01 | 2024-01-31 | MACHUCA LUIS | Director | BUY | $20.58 | 4,889 | $100,638 | 60,835 | +8.7% |
| 2024-01-31 21:20 | 2024-01-30 | Merrywell Christopher | Officer - Senior Executive VP | BUY | $21.09 | 5,000 | $105,450 | 50,727 | +10.9% |
| 2024-02-01 05:12 | 2024-01-30 | EERKES CRAIG D | Director | BUY | $20.82 | 2,141 | $44,579 | 31,163 | +7.4% |
| 2024-01-31 03:28 | 2024-01-29 | Forrest Eric | Director | BUY | $20.89 | 4,750 | $99,245 | 24,838 | +23.6% |
| 2024-01-31 05:58 | 2024-01-30 | Stein Clint | Director, Officer - President, CEO | BUY | $20.96 | 9,500 | $199,112 | 165,684 | +6.1% |
| 2024-01-30 23:12 | 2024-01-29 | SCHULTZ JOHN F | Director | BUY | $20.40 | 8,559 | $174,561 | 41,870 | +25.7% |
| 2024-01-31 03:40 | 2024-01-30 | Finkelstein Mark A | Director | BUY | $20.87 | 3,592 | $74,965 | 23,908 | +17.7% |
| 2024-01-31 05:51 | 2024-01-30 | Numata S Mae Fujita | Director | BUY | $21.09 | 2,400 | $50,608 | 1,225 | +100.0% |
| 2024-01-30 23:31 | 2024-01-29 | FARNSWORTH RON L | Officer - Chief Financial Officer | BUY | $20.71 | 2,500 | $51,775 | 160,073 | +1.6% |
| 2023-07-05 22:58 | 2023-06-30 | Deer Aaron James | Officer - Chief Strategy/Innovation Offc | BUY | $18.25 | 854 | $15,586 | 36,144 | +2.4% |
| 2023-07-05 23:53 | 2023-06-30 | BARUFFI KUMI YAMAMOTO | Officer - General Counsel, Corporate Sec | BUY | $18.25 | 854 | $15,586 | 43,511 | +2.0% |
| 2023-05-24 20:10 | 2023-05-24 | EERKES CRAIG D | Director | BUY | $21.01 | 2,381 | $50,025 | 29,022 | +8.9% |
| 2023-01-04 22:30 | 2022-12-30 | BARUFFI KUMI YAMAMOTO | Officer - EVP General Counsel | BUY | $26.84 | 232 | $6,227 | 23,816 | +1.0% |
| 2023-01-04 22:30 | 2022-12-30 | Lawson David C | Officer - EVP Chief H.R. Officer | BUY | $26.84 | 264 | $7,086 | 21,212 | +1.3% |
| 2022-07-01 21:59 | 2022-06-30 | Deer Aaron James | Officer - EVP Chief Financial Officer | BUY | $25.79 | 748 | $19,291 | 16,175 | +4.8% |
| 2022-07-02 00:40 | 2022-06-30 | BARUFFI KUMI YAMAMOTO | Officer - EVP and General Counsel | BUY | $25.79 | 446 | $11,502 | 23,584 | +1.9% |
| 2022-07-02 00:55 | 2022-06-30 | Lawson David C | Officer - EVP & Chief H.R. Officer | BUY | $25.79 | 271 | $6,989 | 20,948 | +1.3% |
| 2022-06-13 23:54 | 2022-06-10 | EERKES CRAIG D | Director | BUY | $28.52 | 1,694 | $48,313 | 20,227 | +9.1% |
| 2022-05-04 20:52 | 2022-05-02 | Deer Aaron James | Officer - EVP Chief Financial Officer | BUY | $28.00 | 3,000 | $84,000 | 15,427 | +24.1% |
| 2022-02-25 01:27 | 2022-02-24 | Deer Aaron James | Officer - EVP Chief Financial Officer | BUY | $33.45 | 3,000 | $100,359 | 12,427 | +31.8% |
| 2022-01-05 23:39 | 2022-01-04 | BARUFFI KUMI YAMAMOTO | Officer - EVP and General Counsel | BUY | $29.45 | 186 | $5,478 | 21,338 | +0.9% |
| 2022-01-05 23:39 | 2022-01-04 | Lawson David C | Officer - EVP & Chief H.R. Officer | BUY | $29.45 | 116 | $3,416 | 19,341 | +0.6% |
| 2021-11-30 01:03 | 2021-11-26 | HULBERT TOM | Director | BUY | $32.21 | 11,073 | $356,660 | 69,990 | +18.8% |
| 2021-07-06 19:49 | 2021-07-06 | Deer Aaron James | Officer - EVP Chief Financial Officer | BUY | $31.64 | 711 | $22,496 | 7,082 | +11.2% |
| 2021-07-06 19:48 | 2021-07-06 | BARUFFI KUMI YAMAMOTO | Officer - EVP and General Counsel | BUY | $31.64 | 304 | $9,619 | 21,152 | +1.5% |
| 2021-07-06 19:49 | 2021-07-06 | Lawson David C | Officer - EVP & Chief H.R. Officer | BUY | $31.64 | 190 | $6,012 | 19,225 | +1.0% |
| 2021-02-18 03:10 | 2021-02-15 | Deer Aaron James | Officer - EVP Chief Financial Officer | BUY | $24.06 | 935 | $22,496 | 6,371 | +17.2% |
| 2021-01-08 23:18 | 2021-01-07 | BARUFFI KUMI YAMAMOTO | Officer - EVP and General Counsel | BUY | $24.06 | 219 | $5,269 | 18,985 | +1.2% |
| 2021-01-08 23:18 | 2021-01-07 | Lawson David C | Officer - EVP & Chief H.R. Officer | BUY | $24.06 | 137 | $3,296 | 17,650 | +0.8% |
| 2021-01-08 23:19 | 2021-01-07 | Stein Clint | Director, Officer - PRESIDENT, CEO & DIRECTOR | BUY | $24.06 | 179 | $4,307 | 28,230 | +0.6% |
| 2020-08-12 01:21 | 2020-08-10 | McDonald Andy | Officer - EVP & CCO | SELL | $30.90 | 3,073 | $94,943 | 39,813 | -7.2% |
| 2020-07-06 21:13 | 2020-07-02 | BARUFFI KUMI YAMAMOTO | Officer - EVP and General Counsel | BUY | $25.51 | 337 | $8,597 | 18,766 | +1.8% |
| 2020-07-06 20:35 | 2020-07-02 | Lawson David C | Officer - EVP & Chief H.R. Officer | BUY | $25.51 | 220 | $5,612 | 17,513 | +1.3% |
| 2020-07-06 20:44 | 2020-07-02 | Stein Clint | Director, Officer - PRESIDENT, CEO & DIRECTOR | BUY | $25.51 | 250 | $6,378 | 28,051 | +0.9% |
| 2020-05-13 22:27 | 2020-05-12 | HULBERT TOM | Director | BUY | $21.97 | 4,000 | $87,880 | 54,608 | +7.9% |
| 2020-05-13 22:27 | 2020-05-11 | HULBERT TOM | Director | BUY | $23.08 | 1,000 | $23,082 | 50,608 | +2.0% |
| 2020-05-08 22:48 | 2020-05-07 | EERKES CRAIG D | Director | BUY | $22.93 | 1,000 | $22,930 | 14,224 | +7.6% |
| 2020-03-11 02:31 | 2020-03-10 | EERKES CRAIG D | Director | BUY | $28.27 | 1,000 | $28,270 | 13,224 | +8.2% |
| 2020-01-07 00:02 | 2020-01-03 | BARUFFI KUMI YAMAMOTO | Officer - EVP and General Counsel | BUY | $32.81 | 137 | $4,495 | 17,519 | +0.8% |
| 2020-01-07 00:04 | 2020-01-03 | Lawson David C | Officer - EVP & Chief H.R. Officer | BUY | $32.81 | 92 | $3,019 | 16,636 | +0.6% |
| 2020-01-07 01:01 | 2020-01-03 | Stein Clint | Director, Officer - PRESIDENT, CEO & DIRECTOR | BUY | $32.81 | 68 | $2,231 | 27,311 | +0.2% |
How to Interpret $COLB Trades
Not every insider transaction in COLUMBIA BANKING SYSTEM, INC. is a signal for immediate action. Professional investors look for "cluster buying"—when multiple executives simultaneously purchase $COLB shares on the open market. It is crucial to distinguish between scheduled sales (under Rule 10b5-1) and voluntary increases in ownership, which demonstrate management’s true conviction that the stock is undervalued.
Data Source & Accuracy for COLB
Insider activity data for COLUMBIA BANKING SYSTEM, INC. is streamed in real-time directly from the SEC EDGAR system. We analyze raw Form 4 filings, filtering out technical adjustments and complex derivative transactions. This provides a transparent view of how ownership structure is evolving in $COLB, allowing you to follow the capital of those with the most intimate knowledge of the company.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.