COLB

COLUMBIA BANKING SYSTEM, INC.

Company with tickers: COLB

CIK
887343
CUSIP
197236102
Shares Outstanding
289,490,366

Short Volume (Last 90 Days)

Date Short Volume Short Exempt Total Volume Short %
2026-05-22 221,410 2,908 359,401 61.6%
2026-05-21 209,298 0 497,771 42.0%
2026-05-20 265,304 0 533,632 49.7%
2026-05-19 304,548 0 695,198 43.8%
2026-05-18 365,630 358 548,620 66.6%
2026-05-15 442,556 2,838 966,356 45.8%
2026-05-14 413,810 237 3,437,139 12.0%
2026-05-13 378,979 46 827,723 45.8%
2026-05-12 354,414 0 708,969 50.0%
2026-05-11 378,198 11 665,113 56.9%
2026-05-08 413,571 334 925,066 44.7%
2026-05-07 336,699 292 583,122 57.7%
2026-05-06 472,818 1,710 902,506 52.4%
2026-05-05 420,951 137 669,955 62.8%
2026-05-04 292,663 0 1,088,687 26.9%
2026-05-01 232,800 0 469,159 49.6%
2026-04-30 440,068 772 726,118 60.6%
2026-04-29 210,851 0 503,861 41.8%
2026-04-28 344,201 200 779,663 44.1%
2026-04-27 452,507 0 724,950 62.4%
2026-04-24 470,438 265 838,214 56.1%
2026-04-23 551,949 37 956,941 57.7%
2026-04-22 257,305 46 754,803 34.1%
2026-04-21 176,450 4,225 546,603 32.3%
2026-04-20 220,385 0 569,276 38.7%
2026-04-17 295,022 0 623,825 47.3%
2026-04-16 225,908 807 575,886 39.2%
2026-04-15 233,844 0 402,393 58.1%
2026-04-14 233,686 50 365,469 63.9%
2026-04-13 515,410 323 1,224,264 42.1%
2026-04-10 320,452 100 671,220 47.7%
2026-04-09 389,770 47 899,649 43.3%
2026-04-08 504,086 1,482 1,587,788 31.7%
2026-04-07 469,670 54 1,664,586 28.2%
2026-04-06 179,151 0 553,152 32.4%