SEC Insider Transactions from Namdar Frank.

Last updated: 2026-03-18 13:02 UTC | Total transactions: 38

Namdar Frank has filed 38 insider transactions across 1 company since March 2023.

Most recent transaction: a option exercise of 2820 shares of COLUMBIA BANKING SYSTEM, INC. ($COLB) on March 13, 2026.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 13, 2026 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank EVP Chief Credit Officer M Common Stock 2820 $26.23 37,469.0000 299,147,000 8.14% 0.00%
March 13, 2026 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank EVP Chief Credit Officer F Common Stock 1367 $26.23 36,102.0000 299,147,000 3.65% 0.00%
March 13, 2026 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank EVP Chief Credit Officer M Restricted Stock Unit 2820 $0.00 13,640.0000 299,147,000 17.13% 0.00%
March 1, 2026 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank EVP Chief Credit Officer F Common Stock 1808 $28.45 34,616.0000 299,147,000 4.96% 0.00%
Feb. 18, 2026 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank EVP Chief Credit Officer A Restricted Stock Unit 8002 $31.24 16,460.0000 299,147,000 94.61% 0.00%
Feb. 15, 2026 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank EVP Chief Credit Officer F Common Stock 1169 $31.49 36,404.0000 299,147,000 3.11% 0.00%
Feb. 2, 2026 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank EVP Chief Credit Officer F Common Stock 2383 $29.69 37,560.0000 299,147,000 5.97% 0.00%
Feb. 2, 2026 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank EVP Chief Credit Officer A Common Stock 4667 $29.69 39,943.0000 299,147,000 13.23% 0.00%
Jan. 20, 2026 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank EVP Chief Credit Officer D Common Stock 579 $0.00 36,904.0000 299,147,000 1.54% 0.00%
Jan. 20, 2026 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank EVP Chief Credit Officer F Common Stock 1652 $28.35 35,252.0000 299,147,000 4.48% 0.00%
Feb. 28, 2025 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer F Common Stock 1873 $26.73 37,085.0000 209,536,323 4.81% 0.00%
Feb. 28, 2025 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer F Common Stock 902 $26.73 38,958.0000 209,536,323 2.26% 0.00%
Feb. 25, 2025 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Restricted Stock Unit 8458 $26.60 8,458.0000 209,536,323 9999.99% 0.00%
Feb. 25, 2025 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Performance Restricted Stock Unit 4229 $26.60 15,419.0000 209,536,323 37.79% 0.00%
Feb. 25, 2025 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Performance Restricted Stock Unit 4229 $26.60 19,648.0000 209,536,323 27.43% 0.00%
Feb. 14, 2025 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer F Common Stock 1311 $27.41 39,838.0000 209,536,323 3.19% 0.00%
April 16, 2024 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer I Deferred Compensation Phantom Stock 1 $0.00 2,920.0000 209,370,000 0.03% 0.00%
March 11, 2024 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Deferred Compensation Phantom Stock 53 $19.43 2,921.0000 208,585,000 1.85% 0.00%
March 8, 2024 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer F Common Stock 808 $19.51 41,185.0000 208,585,000 1.92% 0.00%
March 8, 2024 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer F Common Stock 466 $19.51 40,719.0000 208,585,000 1.13% 0.00%
March 1, 2024 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Performance Restricted Stock Unit 5595 $17.87 5,595.0000 208,585,000 9999.99% 0.00%
March 1, 2024 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Performance Restricted Stock Unit 5595 $17.87 11,190.0000 208,585,000 100.00% 0.00%
March 1, 2024 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Common Stock 11191 $17.87 41,907.0000 208,585,000 36.43% 0.01%
Feb. 28, 2024 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer F Common Stock 992 $17.76 30,716.0000 208,585,000 3.13% 0.00%
Feb. 15, 2024 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer F Common Stock 1311 $19.01 31,678.0000 208,585,000 3.97% 0.00%
June 15, 2023 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Common Stock 43 $22.68 2,779.0000 208,200,000 1.57% 0.00%
July 14, 2023 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Common Stock 1 $21.75 2,778.0000 208,200,000 0.04% 0.00%
Sept. 11, 2023 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Common Stock 49 $20.49 2,827.0000 208,200,000 1.76% 0.00%
Oct. 11, 2023 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Common Stock 1 $19.83 2,826.0000 208,200,000 0.04% 0.00%
Dec. 11, 2023 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Common Stock 41 $24.89 2,867.0000 208,200,000 1.45% 0.00%
March 17, 2023 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Common Stock 352 $21.47 2,737.0000 208,200,000 14.76% 0.00%
April 13, 2023 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Common Stock 1 $21.86 2,736.0000 208,200,000 0.04% 0.00%
Jan. 1, 2024 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer F Common Stock 784 $26.68 34,852.0000 208,585,000 2.20% 0.00%
March 8, 2023 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer F Common Stock 466 $27.36 34,195.0000 208,200,000 1.34% 0.00%
March 2, 2023 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer F Common Stock 769 $29.07 36,043.0000 208,200,000 2.09% 0.00%
March 2, 2023 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer A Common Stock 1623 $0.00 36,812.0000 208,200,000 4.61% 0.00%
March 2, 2023 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer F Common Stock 523 $29.07 34,661.0000 208,200,000 1.49% 0.00%
March 2, 2023 COLUMBIA BANKING SYSTEM, INC. $COLB Namdar Frank Chief Credit Officer F Common Stock 859 $29.07 35,184.0000 208,200,000 2.38% 0.00%