CLMT Institutional Ownership & Shareholders
CALUMET INC (CLMT) is currently held by 196 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $1.75B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Two Seas Capital Lp is currently the largest disclosed institutional shareholder of CLMT tracked by InsiderSet, reporting ownership valued at approximately $276.60M in its September 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $246.77M, representing an estimated loss of -10.79% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 66% of the total disclosed CLMT value among the investors covered in this analysis. Major shareholders include Two Seas Capital Lp, Blackrock, Inc., Wasserstein Management, L.P., and several other long-term asset managers with concentrated positions in CALUMET INC (CLMT).
This page ranks the largest institutional CLMT shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
196
Total Reported Value
$1.75B
Largest Holder
Two Seas Capital Lp
Largest Position
$276.60M
Insider Transactions (90d)
10
Latest Filing Quarter
Q2 2026
New Institutional Positions
98
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Two Seas Capital Lp | 11.02% | 5,280,659 | $276,600,918 | $246,765,195 | -$29,835,723 | -10.79% | |
| Blackrock, Inc. | 0.00% | 5,234,106 | $188,532,498 | $244,589,773 | +$56,057,275 | +29.73% | |
| Wasserstein Management, L.P. | 59.61% | 3,964,893 | $142,815,446 | $185,279,450 | +$42,464,004 | +29.73% | |
| State Street Corp | 0.00% | 3,471,065 | $125,027,761 | $162,202,867 | +$37,175,106 | +29.73% | |
| Vanguard Capital Management Llc | 0.00% | 3,453,911 | $124,409,874 | $161,401,261 | +$36,991,387 | +29.73% | |
| Adams Asset Advisors, Llc | 10.14% | 1,906,206 | $99,847,070 | $89,077,006 | -$10,770,064 | -10.79% | |
| Geode Capital Management, Llc | 0.00% | 1,962,286 | $70,693,348 | $91,697,625 | +$21,004,277 | +29.71% | |
| Barclays Plc | 0.02% | 1,409,773 | $50,780,023 | $65,878,692 | +$15,098,669 | +29.73% | |
| Vanguard Portfolio Management Llc | 0.00% | 1,025,321 | $36,932,062 | $47,913,250 | +$10,981,188 | +29.73% | |
| Bank Of America Corp | 0.00% | 981,353 | $35,348,335 | $45,858,626 | +$10,510,291 | +29.73% | |
| Wellington Management Group Llp | 0.01% | 811,482 | $29,229,582 | $37,920,554 | +$8,690,972 | +29.73% | |
| Citadel Advisors Llc | 0.02% | 762,084 | $27,450,266 | $35,612,185 | +$8,161,919 | +29.73% | |
| Morgan Stanley | 0.00% | 708,206 | $25,509,581 | $33,094,466 | +$7,584,885 | +29.73% | |
| Marshall Wace, Llp | 0.02% | 617,138 | $22,229,309 | $28,838,859 | +$6,609,550 | +29.73% | |
| Northern Trust Corp | 0.00% | 615,263 | $22,161,774 | $28,751,240 | +$6,589,466 | +29.73% | |
| Voleon Capital Management Lp | 0.40% | 612,506 | $22,062,466 | $28,622,405 | +$6,559,939 | +29.73% | |
| Charles Schwab Investment Management Inc | 0.00% | 552,791 | $19,911,532 | $25,831,923 | +$5,920,391 | +29.73% | |
| Brown Advisory Inc | 0.03% | 535,044 | $19,272,285 | $25,002,606 | +$5,730,321 | +29.73% | |
| Citigroup Inc | 0.01% | 480,623 | $17,312,041 | $22,459,513 | +$5,147,472 | +29.73% | |
| Bnp Paribas Financial Markets | 0.01% | 479,261 | $17,262,981 | $22,395,867 | +$5,132,886 | +29.73% | |
| Vanguard Fiduciary Trust Co | 0.00% | 471,716 | $16,991,210 | $22,043,289 | +$5,052,079 | +29.73% | |
| Dimensional Fund Advisors Lp | 0.00% | 422,091 | $15,203,718 | $19,724,312 | +$4,520,594 | +29.73% | |
| Susquehanna International Group, Llp | 0.01% | 386,077 | $13,906,494 | $18,041,378 | +$4,134,884 | +29.73% | |
| Goldman Sachs Group Inc | 0.00% | 385,555 | $13,887,691 | $18,016,985 | +$4,129,294 | +29.73% | |
| Hennessy Advisors Inc | 0.51% | 258,000 | $13,514,040 | $12,056,340 | -$1,457,700 | -10.79% | |
| Davenport & Co Llc | 0.07% | 249,181 | $13,052,101 | $11,644,228 | -$1,407,873 | -10.79% | |
| Jpmorgan Chase & Co | 0.00% | 338,696 | $12,255,831 | $15,827,264 | +$3,571,433 | +29.14% | |
| Renaissance Technologies LLC | Jim Simons | 0.02% | 321,700 | $11,587,634 | $15,033,041 | +$3,445,407 | +29.73% |
| Royal Bank Of Canada | 0.00% | 309,840 | $11,161,000 | $14,478,823 | +$3,317,823 | +29.73% | |
| Millennium Management Llc | 0.01% | 305,557 | $11,006,163 | $14,278,679 | +$3,272,516 | +29.73% | |
| First Trust Advisors Lp | 0.01% | 299,494 | $10,787,773 | $13,995,355 | +$3,207,582 | +29.73% | |
| Healthcare Of Ontario Pension Plan Trust Fund | 0.01% | 264,107 | $9,513,134 | $12,341,720 | +$2,828,586 | +29.73% | |
| Apis Capital Advisors, Llc | 0.81% | 232,000 | $8,356,640 | $10,841,360 | +$2,484,720 | +29.73% | |
| Janus Henderson Group Plc | 0.00% | 217,948 | $7,823,864 | $10,184,710 | +$2,360,846 | +30.17% | |
| Diametric Capital, Lp | 0.79% | 206,372 | $7,433,519 | $9,643,764 | +$2,210,245 | +29.73% | |
| Bank Of New York Mellon Corp | 0.00% | 192,348 | $6,928,366 | $8,988,422 | +$2,060,056 | +29.73% | |
| One8Zero8, Llc | 1.33% | 186,020 | $6,700,440 | $8,692,715 | +$1,992,275 | +29.73% | |
| Group One Trading Llc | 0.19% | 180,041 | $6,485,077 | $8,413,316 | +$1,928,239 | +29.73% | |
| Sagefield Capital Lp | 0.44% | 166,505 | $5,997,510 | $7,780,779 | +$1,783,269 | +29.73% | |
| Raymond James Financial Inc | 0.00% | 165,035 | $5,944,561 | $7,712,086 | +$1,767,525 | +29.73% | |
| Wells Fargo & Company/Mn | 0.00% | 160,208 | $5,770,699 | $7,486,520 | +$1,715,821 | +29.73% | |
| Nuveen, Llc | 0.00% | 159,071 | $5,729,738 | $7,433,388 | +$1,703,650 | +29.73% | |
| Trexquant Investment Lp | 0.04% | 158,352 | $5,703,839 | $7,399,789 | +$1,695,950 | +29.73% | |
| Principal Financial Group Inc | 0.00% | 99,543 | $5,214,062 | $4,651,644 | -$562,418 | -10.79% | |
| Swiss National Bank | 0.00% | 139,300 | $5,017,586 | $6,509,489 | +$1,491,903 | +29.73% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 130,236 | $4,675,473 | $6,085,928 | +$1,410,455 | +30.17% | |
| Invesco Ltd. | 0.00% | 124,906 | $4,499,114 | $5,836,857 | +$1,337,743 | +29.73% | |
| Federated Hermes, Inc. | 0.01% | 119,472 | $4,303,381 | $5,582,927 | +$1,279,546 | +29.73% | |
| Mariner, Llc | 0.00% | 117,130 | $4,219,025 | $5,473,485 | +$1,254,460 | +29.73% | |
| Focus Partners Wealth | 0.00% | 110,136 | $3,967,099 | $5,146,655 | +$1,179,556 | +29.73% |
Frequently asked questions about CLMT
Who are the largest institutional holders of CLMT?
The largest institutional holders of CLMT reported in the latest SEC Form 13F filings include Two Seas Capital Lp, Blackrock, Inc., Wasserstein Management, L.P., State Street Corp, and Vanguard Capital Management Llc. InsiderSet ranks institutional holders by their latest reported CLMT position.
What is CLMT institutional ownership?
This page tracks CLMT positions reported by institutional investment managers through SEC Form 13F. CALUMET INC (CLMT) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own CLMT?
InsiderSet currently tracks 196 institutional managers reporting CLMT holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of CLMT shareholders.
How much CLMT stock do institutions own?
Institutional investment managers disclosed approximately $1.75B in CLMT holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was CLMT institutional ownership last updated?
The latest CLMT institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional CLMT holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its CLMT position after the reporting date.
Are institutions buying or selling CLMT?
Institutional buying and selling can be analyzed by comparing CLMT positions across consecutive 13F reporting periods. InsiderSet's CLMT Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View CLMT ownership changes.
How has CLMT institutional ownership changed over time?
InsiderSet tracks CLMT institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.