COLB
COLUMBIA BANKING SYSTEM, INC.
NASDAQ · Financial Services · Banks - Regional · US
$29.93
−0.05%1
Insider buys (3m)
0
Insider sells (3m)
$22.5K
Net value (3m)
-4.1%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Sep 15, 2026 | MACHUCA LUIS · director | A-Award | 594 | $0.00 |
| Sep 8, 2026 | GARDNER STEVEN R · director | A-Award | 2,577 | $0.00 |
| Sep 4, 2026 | LAGOMARSINO SIMONE · director | A-Award | 2,670 | $0.00 |
| Aug 18, 2026 | Giem Judi · officer: EVP CHRO | M-Exempt | 2,393 | $33 |
| Aug 18, 2026 | Giem Judi · officer: EVP CHRO | F-InKind | 643 | $33 |
| Jul 2, 2026 | Deer Aaron James · officer: EVP Chief Strategy/Innov Offcr | Purchase | 886 | $25 |
| Jun 16, 2026 | MACHUCA LUIS · director | A-Award | 563 | $0.00 |
| Jun 10, 2026 | Moore Devine David · officer: EVP Chief Marketing Officer | Sale | 3,812 | $30 |
| Jun 10, 2026 | Moore Devine David · officer: EVP Chief Marketing Officer | Sale | 60 | $30 |
| May 18, 2026 | Terry Hilliard C. III · director | A-Award | 3,949 | $0.00 |
| May 18, 2026 | SCHULTZ JOHN F · director | A-Award | 3,949 | $0.00 |
| May 18, 2026 | SEATON ELIZABETH WHITEHEAD · director | A-Award | 3,949 | $0.00 |
| May 18, 2026 | Varnado Anddria · director | A-Award | 3,949 | $0.00 |
| May 18, 2026 | Lund Randal Lee · director | A-Award | 3,949 | $0.00 |
| May 18, 2026 | MACHUCA LUIS · director | A-Award | 3,949 | $0.00 |
| May 18, 2026 | MITCHELL M CHRISTIAN · director | A-Award | 3,949 | $0.00 |
| May 18, 2026 | Finkelstein Mark A · director | A-Award | 3,949 | $0.00 |
| May 18, 2026 | Forrest Eric · director | A-Award | 3,949 | $0.00 |
| May 18, 2026 | STUDENMUND JAYNIE M · director | A-Award | 3,949 | $0.00 |
| Apr 16, 2026 | Lakely Brock · officer: EVP, Chief Accounting Officer | F-InKind | 396 | $29 |
| Mar 20, 2026 | BARUFFI KUMI YAMAMOTO · officer: EVP General Counsel, Corp Sec | F-InKind | 937 | $26 |
| Mar 20, 2026 | Lakely Brock · officer: EVP, Chief Accounting Officer | F-InKind | 211 | $26 |
| Mar 17, 2026 | Namdar Frank · officer: EVP Chief Credit Officer | F-InKind | 1,367 | $26 |
| Mar 17, 2026 | Moore Devine David · officer: EVP Chief Marketing Officer | F-InKind | 376 | $26 |
| Mar 17, 2026 | Stein Clint · director, officer: Chair, CEO, President | F-InKind | 7,151 | $26 |
| Mar 17, 2026 | Nixon Torran B · officer: Senior Executive VP | M-Exempt | 5,013 | $26 |
| Mar 17, 2026 | OGNALL ANDREW H · officer: EVP Chief Risk Officer | M-Exempt | 2,381 | $26 |
| Mar 17, 2026 | Deer Aaron James · officer: EVP Chief Strategy/Innov Offcr | M-Exempt | 1,567 | $26 |
| Mar 17, 2026 | OGNALL ANDREW H · officer: EVP Chief Risk Officer | F-InKind | 951 | $26 |
| Mar 17, 2026 | Deer Aaron James · officer: EVP Chief Strategy/Innov Offcr | F-InKind | 617 | $26 |
Institutional positioning
13F filings over the trailing two quarters
New 159Increased 370Reduced 382Sold out 49
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 27,470,920 | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 27,065,001 | May 13, 2026 |
| T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | Reduced | 15,915,525 | May 15, 2026 |
| T. Rowe Price Investment Management, Inc. | Reduced | 15,633,948 | Aug 14, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 14,944,275 | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 14,339,716 | May 8, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 13,906,292 | Aug 11, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 13,678,183 | Aug 13, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 13,549,603 | May 7, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 13,224,625 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 13,072,525 | Aug 13, 2026 |
| STATE STREET CORP | Increased | 12,694,096 | Aug 7, 2026 |
| STATE STREET CORP | Reduced | 12,476,160 | May 15, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 11,686,430 | Aug 14, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 11,025,378 | Aug 14, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Sep 15, 2026