COLUMBIA BANKING SYSTEM, INC. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| GARDNER STEVEN R | — | Award / Grant | 245,875 | — | — | 245,875 | Aug 31, 2025 |
| STUDENMUND JAYNIE M | — | Award / Grant | 2,205 | — | — | 17,858 | Aug 31, 2025 |
| MITCHELL M CHRISTIAN | — | Award / Grant | 2,205 | — | — | 37,960 | Aug 31, 2025 |
| POPE MARIA M | — | Award / Grant | 3,382 | — | — | 47,569 | May 15, 2025 |
| Finkelstein Mark A | — | Award / Grant | 3,382 | — | — | 31,605 | May 15, 2025 |
| Forrest Eric | — | Award / Grant | 3,382 | — | — | 32,402 | May 15, 2025 |
| Lund Randal Lee | — | Award / Grant | 3,382 | — | — | 23,714 | May 15, 2025 |
| MACHUCA LUIS | — | Award / Grant | 3,382 | — | — | 26,004 | May 15, 2025 |
| Numata S Mae Fujita | — | Award / Grant | 3,382 | — | — | 37,113 | May 15, 2025 |
| SCHULTZ JOHN F | — | Award / Grant | 3,382 | — | — | 49,435 | May 15, 2025 |
| SEATON ELIZABETH WHITEHEAD | — | Award / Grant | 3,382 | — | — | 32,566 | May 15, 2025 |
| Terry Hilliard C. III | — | Award / Grant | 3,382 | — | — | 51,565 | May 15, 2025 |
| Varnado Anddria | — | Award / Grant | 3,382 | — | — | 26,945 | May 15, 2025 |
| Nixon Torran B | Senior Executive VP | Sale | 4,481 | $25.99 | $116,461 | 104,869 | Mar 4, 2025 |
| White Lisa M | PAO & Corporate Controller | Tax Withholding | 1,521 | $26.73 | $40,656 | 29,045 | Feb 28, 2025 |
| OGNALL ANDREW H | Chief Human Resources Officer | Tax Withholding | 1,744 | $26.73 | $46,617 | 74,268 | Feb 28, 2025 |
| Nixon Torran B | Senior Executive VP | Tax Withholding | 4,087 | $26.73 | $109,246 | 112,330 | Feb 28, 2025 |
| Namdar Frank | Chief Credit Officer | Tax Withholding | 1,873 | $26.73 | $50,065 | 33,394 | Feb 28, 2025 |
| Moore Devine David | Chief Marketing Officer | Tax Withholding | 839 | $26.73 | $22,426 | 23,025 | Feb 28, 2025 |
| Merrywell Christopher | Senior Executive VP | Tax Withholding | 3,230 | $26.73 | $86,338 | 43,392 | Feb 28, 2025 |
| FARNSWORTH RON L | Chief Financial Officer | Tax Withholding | 2,930 | $26.73 | $78,319 | 144,235 | Feb 28, 2025 |
| Dow Lisa | Chief Risk Officer | Tax Withholding | 1,285 | $26.73 | $34,348 | 35,110 | Feb 28, 2025 |
| Deer Aaron James | Chief Strategy/Innovation Offc | Tax Withholding | 918 | $26.73 | $24,538 | 42,046 | Feb 28, 2025 |
| BARUFFI KUMI YAMAMOTO | General Counsel, Corporate Sec | Tax Withholding | 1,799 | $26.73 | $48,087 | 54,263 | Feb 28, 2025 |
| Anderson Drew K | Chief Administrative Officer | Tax Withholding | 1,127 | $26.73 | $30,125 | 25,286 | Feb 28, 2025 |
| O'HAVER CORT L | Executive Chairman | Tax Withholding | 9,465 | $26.73 | $252,999 | 399,862 | Feb 28, 2025 |
| Stein Clint | President, CEO | Tax Withholding | 9,789 | $26.73 | $261,660 | 142,961 | Feb 28, 2025 |
| White Lisa M | PAO & Corporate Controller | Award / Grant | 6,578 | $26.60 | $174,975 | 31,164 | Feb 25, 2025 |
| White Lisa M | PAO & Corporate Controller | Tax Withholding | 619 | $27.41 | $16,967 | 24,586 | Feb 14, 2025 |
| Stein Clint | President, CEO | Award / Grant | 4,759 | $27.41 | $130,444 | 158,545 | Feb 14, 2025 |
| OGNALL ANDREW H | IMO General Counsel | Tax Withholding | 1,337 | $27.41 | $36,647 | 77,688 | Feb 14, 2025 |
| O'HAVER CORT L | Executive Chairman | Tax Withholding | 5,944 | $27.41 | $162,925 | 410,497 | Feb 14, 2025 |
| Nixon Torran B | Senior Executive VP | Tax Withholding | 2,098 | $27.41 | $57,506 | 116,417 | Feb 14, 2025 |
| Namdar Frank | Chief Credit Officer | Tax Withholding | 1,311 | $27.41 | $35,935 | 36,169 | Feb 14, 2025 |
| FARNSWORTH RON L | Chief Financial Officer | Tax Withholding | 2,240 | $27.41 | $61,398 | 147,165 | Feb 14, 2025 |
| Moore Devine David | Chief Marketing Officer | Tax Withholding | 453 | $27.41 | $12,417 | 23,864 | Feb 14, 2025 |
| Merrywell Christopher | Senior Executive VP | Award / Grant | 1,673 | $27.41 | $45,857 | 48,987 | Feb 14, 2025 |
| Dow Lisa | Chief Risk Officer | Award / Grant | 921 | $27.41 | $25,245 | 37,398 | Feb 14, 2025 |
| Deer Aaron James | Chief Strategy/Innovation Offc | Tax Withholding | 506 | $27.41 | $13,869 | 43,497 | Feb 14, 2025 |
| BARUFFI KUMI YAMAMOTO | General Counsel, Corporate Sec | Tax Withholding | 442 | $27.41 | $12,115 | 57,093 | Feb 14, 2025 |
| Anderson Drew K | Chief Administrative Officer | Tax Withholding | 884 | $27.41 | $24,230 | 26,413 | Feb 14, 2025 |
| Stein Clint | President, CEO | Tax Withholding | 6,365 | $27.01 | $171,919 | 153,786 | Jan 1, 2025 |
| Moore Devine David | Chief Marketing Officer | Tax Withholding | 680 | $27.01 | $18,367 | 24,543 | Jan 1, 2025 |
| Merrywell Christopher | Senior Executive VP | Tax Withholding | 1,818 | $27.01 | $49,104 | 47,314 | Jan 1, 2025 |
| Dow Lisa | Chief Risk Officer | Tax Withholding | 701 | $27.01 | $18,934 | 36,477 | Jan 1, 2025 |
| Deer Aaron James | Chief Strategy/Innovation Offc | Tax Withholding | 995 | $27.01 | $26,875 | 42,699 | Jan 1, 2025 |
| BARUFFI KUMI YAMAMOTO | General Counsel, Corporate Sec | Tax Withholding | 772 | $27.01 | $20,852 | 56,523 | Jan 1, 2025 |
| POPE MARIA M | — | Gift | 2,090 | — | — | 44,187 | Nov 29, 2024 |
| SCHULTZ JOHN F | — | Gift | 3,000 | — | — | 43,053 | Aug 29, 2024 |
| Anderson Drew K | Chief Administrative Officer | Tax Withholding | 576 | $18.43 | $10,616 | 27,297 | Jun 21, 2024 |