Who owns CLMT (CLMT)
Which tracked institutional funds hold CLMT, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See CLMT company fundamentals →
Ownership as of the 2026-Q1 13F filings. 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 CLMT is one-sided between 2025-Q4 and 2026-Q1: 97 added or opened and 11 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
CLMT’s largest tracked holder by dollar value, Two Seas Capital LP, sizes it at 9.9% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 9.9pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in CLMT 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 2025-Q4 and 2026-Q1, across 178 tracked filers holding CLMT, 115 increased or opened the position and 67 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
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 CLMT between the 2025-Q4 and 2026-Q1 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 27
- VANGUARD CAPITAL MANAGEMENT LLC$123M
- VANGUARD PORTFOLIO MANAGEMENT LLC$33M
- WELLINGTON MANAGEMENT GROUP LLP$29M
- VANGUARD FIDUCIARY TRUST CO$16M
- RENAISSANCE TECHNOLOGIES LLC$14M
- Walleye Capital LLC$12M
Full exits 6
- VANGUARD GROUP INC$83M
- Knott David M Jr$44M
- FAS Wealth Partners, Inc.$2M
- Laurion Capital Management LP$748K
- Numerai GP LLC$620K
- Linscomb Wealth, Inc.$514K
Largest adds
- BlackRock, Inc.$81M
- Two Seas Capital LP$75M
- STATE STREET CORP$68M
- Wasserstein Management, L.P.$53M
- GEODE CAPITAL MANAGEMENT, LLC$34M
- BANK OF AMERICA CORP /DE/$28M
Largest trims
- Rangeley Capital, LLC$3M
- RAYMOND JAMES FINANCIAL INC$3M
- LPL Financial LLC$1M
- WELLS FARGO & COMPANY/MN$932K
- Mariner, LLC$378K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Two Seas Capital LP trimmed | 5,960,292 | $214M | 12.2% | 2026-Q1 |
| BlackRock, Inc. added | 4,980,528 | $179M | 10.2% | 2026-Q1 |
| Wasserstein Management, L.P. trimmed | 4,573,363 | $164M | 9.4% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 3,435,394 | $123M | 7.0% | 2026-Q1 |
| Adams Asset Advisors, LLC trimmed | 3,202,232 | $115M | 6.6% | 2026-Q1 |
| STATE STREET CORP added | 3,080,159 | $111M | 6.3% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,872,859 | $67M | 3.8% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 1,153,744 | $41M | 2.4% | 2026-Q1 |
| MORGAN STANLEY trimmed | 1,051,997 | $38M | 2.2% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 930,252 | $33M | 1.9% | 2026-Q1 |
| MARSHALL WACE, LLP added | 821,633 | $29M | 1.7% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP new | 807,771 | $29M | 1.7% | 2026-Q1 |
| Voleon Capital Management LP added | 681,932 | $24M | 1.4% | 2026-Q1 |
| BARCLAYS PLC added | 677,913 | $24M | 1.4% | 2026-Q1 |
| NORTHERN TRUST CORP added | 581,090 | $21M | 1.2% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 581,137 | $20M | 1.2% | 2026-Q1 |
| BROWN ADVISORY INC trimmed | 565,724 | $20M | 1.2% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 540,667 | $19M | 1.1% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 536,033 | $19M | 1.1% | 2026-Q1 |
| CITIGROUP INC added | 486,979 | $17M | 1.0% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 435,598 | $16M | 0.9% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 402,089 | $14M | 0.8% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 391,800 | $14M | 0.8% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 347,486 | $12M | 0.7% | 2026-Q1 |
| Walleye Capital LLC added | 336,196 | $12M | 0.7% | 2026-Q1 |
| Trexquant Investment LP added | 325,287 | $12M | 0.7% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 306,887 | $11M | 0.6% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 303,484 | $11M | 0.6% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 245,335 | $9M | 0.5% | 2026-Q1 |
| Invesco Ltd. added | 229,267 | $8M | 0.5% | 2026-Q1 |
| JANUS HENDERSON GROUP PLC added | 217,948 | $8M | 0.4% | 2026-Q1 |
| Bank of New York Mellon Corp added | 210,599 | $8M | 0.4% | 2026-Q1 |
| UBS Group AG trimmed | 204,725 | $7M | 0.4% | 2026-Q1 |
| one8zero8, LLC trimmed | 188,235 | $7M | 0.4% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 187,905 | $7M | 0.4% | 2026-Q1 |
| Nuveen, LLC added | 166,107 | $6M | 0.3% | 2026-Q1 |
| GROUP ONE TRADING LLC added | 162,710 | $6M | 0.3% | 2026-Q1 |
| AYAL Capital Advisors Ltd trimmed | 151,877 | $5M | 0.3% | 2026-Q1 |
| Informed Momentum Co LLC new | 151,692 | $5M | 0.3% | 2026-Q1 |
| Swiss National Bank | 136,900 | $5M | 0.3% | 2026-Q1 |
| Rafferty Asset Management, LLC added | 132,144 | $5M | 0.3% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 130,236 | $5M | 0.3% | 2026-Q1 |
| HRT FINANCIAL LP added | 118,290 | $4M | 0.2% | 2026-Q1 |
| Mariner, LLC trimmed | 118,216 | $4M | 0.2% | 2026-Q1 |
| Engineers Gate Manager LP added | 108,434 | $4M | 0.2% | 2026-Q1 |
| Focus Partners Wealth trimmed | 105,836 | $4M | 0.2% | 2026-Q1 |
| GREAT LAKES ADVISORS, LLC trimmed | 105,145 | $4M | 0.2% | 2026-Q1 |
| GARNET EQUITY CAPITAL HOLDINGS, INC. trimmed | 100,746 | $4M | 0.2% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND added | 97,741 | $4M | 0.2% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 97,421 | $3M | 0.2% | 2026-Q1 |
| HSBC HOLDINGS PLC new | 87,004 | $3M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 85,056 | $3M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 83,579 | $3M | 0.2% | 2026-Q1 |
| FEDERATED HERMES, INC. new | 74,864 | $3M | 0.2% | 2026-Q1 |
| WINTON GROUP Ltd added | 71,800 | $3M | 0.1% | 2026-Q1 |
| Sagefield Capital LP new | 68,428 | $2M | 0.1% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 61,802 | $2M | 0.1% | 2026-Q1 |
| BlueCrest Capital Management Ltd added | 60,000 | $2M | 0.1% | 2026-Q1 |
| Lombard Odier Asset Management (USA) Corp trimmed | 59,534 | $2M | 0.1% | 2026-Q1 |
| Founders Financial Alliance, LLC | 55,855 | $2M | 0.1% | 2026-Q1 |
| Rangeley Capital, LLC trimmed | 53,000 | $2M | 0.1% | 2026-Q1 |
| Neo Ivy Capital Management new | 51,435 | $2M | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 49,893 | $2M | 0.1% | 2026-Q1 |
| Amundi added | 48,651 | $2M | 0.1% | 2026-Q1 |
| Legal & General Group Plc trimmed | 46,955 | $2M | 0.1% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 46,905 | $2M | 0.1% | 2026-Q1 |
| VAN ECK ASSOCIATES CORP added | 45,829 | $2M | 0.1% | 2026-Q1 |
| Diametric Capital, LP added | 45,739 | $2M | 0.1% | 2026-Q1 |
| Creative Planning | 43,739 | $2M | 0.1% | 2026-Q1 |
| Plancorp, LLC | 45,000 | $2M | 0.1% | 2026-Q1 |
| LPL Financial LLC trimmed | 39,289 | $1M | 0.1% | 2026-Q1 |
| ELCO Management Co., LLC added | 39,120 | $1M | 0.1% | 2026-Q1 |
| MetLife Investment Management, LLC trimmed | 38,848 | $1M | 0.1% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. | 70,100 | $1M | 0.1% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 38,773 | $1M | 0.1% | 2026-Q1 |
| Valeo Financial Advisors, LLC | 38,613 | $1M | 0.1% | 2026-Q1 |
| DAVENPORT & Co LLC added | 38,100 | $1M | 0.1% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 37,850 | $1M | 0.1% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 34,092 | $1M | 0.1% | 2026-Q1 |
| Jump Financial, LLC trimmed | 33,374 | $1M | 0.1% | 2026-Q1 |
| COMMONWEALTH EQUITY SERVICES, LLC trimmed | 32,445 | $1M | 0.1% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 32,321 | $1M | 0.1% | 2026-Q1 |
| Zurcher Kantonalbank (Zurich Cantonalbank) added | 30,276 | $1M | 0.1% | 2026-Q1 |
| VARCOV Co. new | 29,979 | $1M | 0.1% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE trimmed | 29,384 | $1M | 0.1% | 2026-Q1 |
| O'Keefe Stevens Advisory, Inc. added | 28,435 | $1M | 0.1% | 2026-Q1 |
| FMR LLC added | 27,341 | $982K | 0.1% | 2026-Q1 |
| Quantbot Technologies LP added | 26,711 | $959K | 0.1% | 2026-Q1 |
| Parallax Volatility Advisers, L.P. | 25,000 | $813K | 0.0% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP new | 22,135 | $795K | 0.0% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 4,193,010 | $83M | 4.8% | 2025-Q4 stale |
| Knott David M Jr trimmed | 2,214,969 | $44M | 2.5% | 2025-Q4 stale |
| Alta Fundamental Advisers LLC | 459,937 | $7M | 0.4% | 2025-Q2 stale |
| Barnett & Company, Inc. | 232,015 | $4M | 0.2% | 2025-Q2 stale |
| PEAK6 LLC new | 131,051 | $2M | 0.1% | 2025-Q3 stale |
| WOLVERINE TRADING, LLC added | 125,944 | $2M | 0.1% | 2025-Q3 stale |
| Schonfeld Strategic Advisors LLC added | 174,481 | $2M | 0.1% | 2025-Q1 stale |
| Kovitz Investment Group Partners, LLC | 110,600 | $2M | 0.1% | 2025-Q3 stale |
| FAS Wealth Partners, Inc. | 96,321 | $2M | 0.1% | 2025-Q4 stale |
| TORONTO DOMINION BANK new | 50,000 | $788K | 0.0% | 2025-Q2 stale |
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.