February 18, 2026 · Form 4 insider transaction
BARUFFI KUMI YAMAMOTO bought 8,322 shares of Columbia Banking System, Inc. at $31.24 per share, a transaction worth $260.0K. The trade was recorded as grant or award and disclosed on an SEC Form 4, filed 2 days after the transaction.
Restricted stock units granted 02/18/2026. The grant will vest 33.33% per year over three years.