COLB
Columbia Banking System, Inc.Company with tickers: COLB
CIK
887343
CUSIP
197236102
Shares Outstanding
289,490,366
13F Activity (30d)
381 filings
357 filers
Short Volume (Last 90 Days)
| Date | Short Volume | Short Exempt | Total Volume | Short % |
|---|---|---|---|---|
| 2026-05-29 | 497,791 | 1 | 1,053,175 | 47.3% |
| 2026-05-28 | 310,618 | 0 | 665,486 | 46.7% |
| 2026-05-27 | 284,820 | 0 | 1,342,331 | 21.2% |
| 2026-05-26 | 247,702 | 1,073 | 524,672 | 47.2% |
| 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% |