COLBColumbia Banking System, Inc.

$28.37+11% 1Y

Who owns COLB

548 institutions reported holding COLB for 2026Q2, together 92% of the company, more than the 518 a quarter earlier.

548

Institutions reporting a position · as of 2026Q2 · up from 518 the quarter before

Shares held by institutions
269.2M

Shares held by institutions · 92% of the company · long US equity positions only, as reported on Form 13F

Reported value
$8.63B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
34%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
85
Positions exited
56
Added to
162
Reduced
186
Top 10 holdersof the company
50%
Shares sold shortsettled Sep 15, 2026
10.6M
Short interestof shares outstanding
3.6%
Days to coverat the average daily volume
3.5
Change in the short positionsince the Aug 31, 2026 count
−1.1%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q2548269.2M$8.63B
2026Q1518276.6M$7.59B
2025Q4496289.0M$8.08B
2025Q3470286.0M$7.37B
2025Q2406208.6M$4.88B
2025Q1395196.7M$4.91B
2024Q4397193.2M$5.22B
2024Q3368192.3M$5.03B
2024Q2359189.6M$3.77B
2024Q1353188.6M$3.65B
2023Q4368185.1M$4.93B
2023Q3331185.0M$3.76B
2023Q2352189.7M$3.84B
2023Q1374187.2M$4.01B
2022Q425384.4M$2.54B
2022Q324684.5M$2.44B
Largest reported holders, 2026Q2
HolderShares% of companyValue
VANGUARD GROUP INC29.1M10.0%$934M
BlackRock Inc.27.5M9.4%$880M
T. Rowe Price Investment Management, Inc.15.6M5.4%$501M
DIMENSIONAL FUND ADVISORS LP13.9M4.8%$446M
STATE STREET CORP12.7M4.3%$407M
WELLINGTON MANAGEMENT GROUP LLP11.7M4.0%$375M
Charles Schwab Trust Co11.0M3.8%$353M
PRICE T ROWE ASSOCIATES INC /MD/9.9M3.4%$317M
AMERICAN CENTURY COMPANIES INC7.9M2.7%$253M
FRANKLIN RESOURCES INC6.1M2.1%$196M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 202610.6M3.6%3.5
Aug 31, 202610.7M3.7%4.0
Aug 14, 20269.8M3.4%3.8
Jul 31, 20268.6M3.0%2.6
Jul 15, 20269.6M3.3%3.8
Jun 30, 20268.6M2.9%2.6
Jun 15, 20269.5M3.3%3.3
May 29, 20269.8M3.4%4.0
May 15, 20268.9M3.0%3.0
Apr 30, 20269.2M3.2%3.8
Apr 15, 20269.3M3.2%3.4
Mar 31, 202611.2M3.8%3.5

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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