Who owns Columbia Financial (CLBK)
Which tracked institutional funds hold CLBK, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See CLBK company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on CLBK is one-sided between 2026-Q1 and 2026-Q2: 40 added or opened and 6 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
CLBK’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in CLBK divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 115 tracked filers holding CLBK, 68 increased or opened the position and 60 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in CLBK between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 8
- One Fin Capital Management LP$12M
- Weiss Asset Management LP$11M
- PEAK6 LLC$3M
- Schonfeld Strategic Advisors LLC$1M
- OCCUDO QUANTITATIVE STRATEGIES LP$1M
- PRUDENTIAL FINANCIAL INC$689K
Full exits 3
- PEAPACK GLADSTONE FINANCIAL CORP$861K
- Gator Capital Management, LLC$841K
- NORGES BANK$684K
Largest adds
- Ursa Fund Management, LLC$18M
- BlackRock, Inc.$11M
- STATE STREET CORP$10M
- DIMENSIONAL FUND ADVISORS LP$9M
- VANGUARD PORTFOLIO MANAGEMENT LLC$5M
- VANGUARD CAPITAL MANAGEMENT LLC$4M
Largest trims
- D. E. Shaw & Co., Inc.$1M
- TUDOR INVESTMENT CORP ET AL$620K
- OSAIC HOLDINGS, INC.$317K
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 2,445,887 | $52M | 15.0% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 2,102,017 | $45M | 12.9% | 2026-Q2 |
| Ursa Fund Management, LLC added | 1,275,888 | $27M | 7.8% | 2026-Q2 |
| STATE STREET CORP added | 1,225,405 | $26M | 7.5% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC trimmed | 1,175,642 | $25M | 7.2% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 1,121,766 | $24M | 6.9% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 785,997 | $17M | 4.8% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 718,962 | $15M | 4.4% | 2026-Q2 |
| One Fin Capital Management LP new | 580,000 | $12M | 3.6% | 2026-Q2 |
| Weiss Asset Management LP new | 504,549 | $11M | 3.1% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 283,231 | $6M | 1.7% | 2026-Q2 |
| MORGAN STANLEY trimmed | 282,124 | $6M | 1.7% | 2026-Q2 |
| NORTHERN TRUST CORP added | 252,729 | $5M | 1.6% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 224,429 | $5M | 1.4% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 188,267 | $4M | 1.2% | 2026-Q2 |
| Creative Planning added | 184,086 | $4M | 1.1% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 179,344 | $4M | 1.1% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 129,962 | $3M | 0.8% | 2026-Q2 |
| PEAK6 LLC new | 126,887 | $3M | 0.8% | 2026-Q2 |
| D. E. Shaw & Co., Inc. trimmed | 120,099 | $3M | 0.7% | 2026-Q2 |
| CITIGROUP INC added | 111,526 | $2M | 0.7% | 2026-Q2 |
| Bank of New York Mellon Corp added | 110,174 | $2M | 0.7% | 2026-Q2 |
| Nuveen, LLC added | 105,333 | $2M | 0.6% | 2026-Q2 |
| MANGROVE PARTNERS IM, LLC | 100,911 | $2M | 0.6% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 100,514 | $2M | 0.6% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 96,373 | $2M | 0.6% | 2026-Q2 |
| Minerva Advisors LLC added | 89,294 | $2M | 0.5% | 2026-Q2 |
| UBS Group AG trimmed | 79,953 | $2M | 0.5% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 78,295 | $2M | 0.5% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 72,751 | $2M | 0.4% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 71,534 | $2M | 0.4% | 2026-Q2 |
| Quantinno Capital Management LP added | 71,497 | $2M | 0.4% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 67,032 | $1M | 0.4% | 2026-Q2 |
| Squarepoint Ops LLC added | 66,777 | $1M | 0.4% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC added | 65,633 | $1M | 0.4% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL trimmed | 62,518 | $1M | 0.4% | 2026-Q2 |
| Swiss National Bank trimmed | 52,288 | $1M | 0.3% | 2026-Q2 |
| OCCUDO QUANTITATIVE STRATEGIES LP added | 51,945 | $1M | 0.3% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 49,123 | $1M | 0.3% | 2026-Q2 |
| FMR LLC added | 45,482 | $965K | 0.3% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 40,008 | $849K | 0.2% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 39,650 | $694K | 0.2% | 2026-Q2 |
| Invesco Ltd. added | 37,911 | $804K | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 37,544 | $797K | 0.2% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC new | 32,490 | $689K | 0.2% | 2026-Q2 |
| SIMPLEX TRADING, LLC added | 30,893 | $656K | 0.2% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 27,666 | $587K | 0.2% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 26,204 | $556K | 0.2% | 2026-Q2 |
| Sequoia Financial Advisors, LLC added | 25,804 | $548K | 0.2% | 2026-Q2 |
| Rafferty Asset Management, LLC added | 24,278 | $515K | 0.1% | 2026-Q2 |
| SeaCrest Wealth Management, LLC | 24,100 | $511K | 0.1% | 2026-Q2 |
| INCEPTIONR LLC new | 23,949 | $508K | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 23,517 | $499K | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd trimmed | 22,843 | $485K | 0.1% | 2026-Q2 |
| Legal & General Group Plc trimmed | 22,427 | $476K | 0.1% | 2026-Q2 |
| WITTENBERG INVESTMENT MANAGEMENT, INC. new | 21,685 | $460K | 0.1% | 2026-Q2 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 20,824 | $442K | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 20,757 | $441K | 0.1% | 2026-Q2 |
| BARCLAYS PLC added | 20,652 | $438K | 0.1% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 18,983 | $426K | 0.1% | 2026-Q2 |
| Jupiter Topco LLC new | 17,955 | $381K | 0.1% | 2026-Q2 |
| Quantbot Technologies LP new | 16,286 | $346K | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC | 16,126 | $342K | 0.1% | 2026-Q2 |
| Crown Wealth Group, LLC | 15,500 | $329K | 0.1% | 2026-Q2 |
| Roxbury Financial LLC trimmed | 15,000 | $318K | 0.1% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE trimmed | 14,865 | $315K | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 13,636 | $289K | 0.1% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC trimmed | 13,132 | $279K | 0.1% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC | 13,129 | $279K | 0.1% | 2026-Q2 |
| Arkadios Wealth Advisors new | 12,686 | $269K | 0.1% | 2026-Q2 |
| DRW Securities, LLC new | 12,561 | $267K | 0.1% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 12,252 | $260K | 0.1% | 2026-Q2 |
| Numerai GP LLC trimmed | 11,904 | $253K | 0.1% | 2026-Q2 |
| Lighthouse Investment Partners, LLC new | 11,825 | $251K | 0.1% | 2026-Q2 |
| Kestra Advisory Services, LLC trimmed | 11,823 | $251K | 0.1% | 2026-Q2 |
| Brevan Howard Capital Management LP new | 11,563 | $245K | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC | 11,240 | $239K | 0.1% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 11,050 | $234K | 0.1% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 9,908 | $210K | 0.1% | 2026-Q2 |
| Vanguard Investments Australia, Ltd. | 8,822 | $187K | 0.1% | 2026-Q2 |
| Police & Firemen's Retirement System of New Jersey added | 8,441 | $179K | 0.1% | 2026-Q2 |
| OSAIC HOLDINGS, INC. trimmed | 5,934 | $126K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) trimmed | 2,408 | $51K | 0.0% | 2026-Q2 |
| Ameritas Investment Partners, Inc. | 2,273 | $48K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 1,502 | $32K | 0.0% | 2026-Q2 |
| Arax Advisory Partners added | 1,490 | $32K | 0.0% | 2026-Q2 |
| SIGNATUREFD, LLC | 1,104 | $23K | 0.0% | 2026-Q2 |
| Parallel Advisors, LLC added | 832 | $18K | 0.0% | 2026-Q2 |
| NISA INVESTMENT ADVISORS, LLC | 762 | $16K | 0.0% | 2026-Q2 |
| Versant Capital Management, Inc | 682 | $14K | 0.0% | 2026-Q2 |
| IFP Advisors, Inc trimmed | 551 | $12K | 0.0% | 2026-Q2 |
| Sterling Capital Management LLC trimmed | 510 | $11K | 0.0% | 2026-Q2 |
| Bare Financial Services, Inc | 398 | $8K | 0.0% | 2026-Q2 |
| Larson Financial Group LLC added | 388 | $8K | 0.0% | 2026-Q2 |
| Farther Finance Advisors, LLC added | 374 | $8K | 0.0% | 2026-Q2 |
| EverSource Wealth Advisors, LLC trimmed | 290 | $6K | 0.0% | 2026-Q2 |
| US BANCORP \DE\ trimmed | 249 | $5K | 0.0% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd new | 199 | $4K | 0.0% | 2026-Q2 |
| GAMMA Investing LLC | 191 | $4K | 0.0% | 2026-Q2 |
| Global Retirement Partners, LLC new | 190 | $4K | 0.0% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.