Kumi Yamamoto Baruffi serves as Executive at COLUMBIA BANKING SYSTEM INC, where they oversee executive responsibilities. Since joining the company, Kumi Yamamoto Baruffi has executed 76 insider transactions totaling $102.2K, demonstrating a bullish approach to their equity position. Their most recent transaction on Feb 18, 2026 involved receiving (via award) 8,322 shares valued at $260.0K.
Kumi Yamamoto Baruffi currently holds 15,464 shares of COLUMBIA BANKING SYSTEM INC (COLB), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Kumi Yamamoto Baruffi has been a net buyer of COLB stock. They have purchased $102.2K and sold $0 worth of shares.
Kumi Yamamoto Baruffi's most recent insider trade was on Feb 18, 2026, when they sold 8,322 shares at $31.24 per share.
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| $28.35 |
| Discretionary |
| Jan 20, 2026 | COLB | $0 | Disposition | 632 | $N/A | Discretionary |
| Mar 1, 2024 | COLB | $245.0K | Award | 13,710 | $17.87 | Discretionary |
| Feb 15, 2024 | COLB | $19.2K | Award | 1,012 | $19.01 | Discretionary |
| Feb 15, 2024 | COLB | $12.8K | Award | 673 | $19.01 | Discretionary |
| Jan 1, 2024 | COLB | $12.3K | Payment | 461 | $26.68 | Discretionary |
| Jan 1, 2024 | COLB | $12.3K | Payment | 461 | $26.68 | Discretionary |
| Jun 30, 2023 | COLB | $15.6K | Purchase | 854 | $18.25 | Discretionary |
| Mar 27, 2023 | COLB | $10.6K | Payment | 507 | $20.81 | Discretionary |
| Feb 28, 2023 | COLB | $0 | Award | 1,020 | $N/A | Discretionary |
| Feb 28, 2023 | COLB | $0 | Award | 1,020 | $N/A | Discretionary |
| Feb 28, 2023 | COLB | $0 | Award | 1,702 | $N/A | Discretionary |
| Feb 28, 2023 | COLB | $0 | Award | 1,520 | $N/A | Discretionary |
| Feb 21, 2023 | COLB | $0 | Award | 3,948 | $N/A | Discretionary |
| Feb 21, 2023 | COLB | $0 | Award | 1,456 | $N/A | Discretionary |
| Feb 21, 2023 | COLB | $0 | Award | 7,898 | $N/A | Discretionary |
| Feb 21, 2023 | COLB | $18.7K | Payment | 609 | $30.77 | Discretionary |
| Feb 15, 2023 | COLB | $14.7K | Payment | 458 | $32.05 | Discretionary |
| Feb 15, 2023 | COLB | $21.6K | Award | 673 | $32.05 | Discretionary |
| Feb 15, 2023 | COLB | $9.8K | Payment | 305 | $32.05 | Discretionary |
| Feb 15, 2023 | COLB | $32.4K | Award | 1,012 | $32.05 | Discretionary |
| Feb 15, 2023 | COLB | $12.5K | Payment | 389 | $32.05 | Discretionary |
| Feb 15, 2023 | COLB | $27.5K | Award | 859 | $32.05 | Discretionary |
| Dec 30, 2022 | COLB | $6.2K | Purchase | 232 | $26.84 | Discretionary |
| Jun 30, 2022 | COLB | $11.5K | Purchase | 446 | $25.79 | Discretionary |
| Mar 25, 2022 | COLB | $6.4K | Payment | 188 | $34.07 | Discretionary |
| Mar 7, 2022 | COLB | $52.1K | Award | 1,592 | $32.72 | Discretionary |
| Mar 7, 2022 | COLB | $12.6K | Payment | 385 | $32.72 | Discretionary |
| Feb 28, 2022 | COLB | $10.6K | Payment | 289 | $36.63 | Discretionary |