Institutional Ownership
Calumet Inc
CUSIP 131428104COMCLMTQ1 2026
13D / 13G Filings
12
Schedule 13D/13G on record
Beneficial Filers
7
Distinct reporting persons
Largest Stake
17.2%
Max % of class reported
Institutional Holders
170
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
12 filings · latest Feb 17, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 17, 2026 | Two Seas Capital LP | 13G/A | 9.3% | — | SEC |
| 2 | Nov 14, 2025 | Two Seas Capital LP | 13G/A | 7.8% | — | SEC |
| 3 | Aug 13, 2025 | Two Seas Capital LP | 13G | 5.2% | — | SEC |
| 4 | Jul 29, 2025 | The Vanguard Group | 13G | 5.4% | 4.67M | SEC |
| 5 | Jul 17, 2025 | Blackrock, Inc. | 13G | 5.4% | 4.71M | SEC |
| 6 | Mar 19, 2025 | Wasserstein Debt Opportunities Management, L.P. | 13G | 7.0% | 6.03M | SEC |
| 7 | Feb 25, 2025 | Wasserstein Debt Opportunities Management, LP | 13G/A | 7.0% | 6.04M | SEC |
| 8 | Feb 25, 2025 | Wasserstein Debt Opportunities Management, L.P. | 13D | 7.0% | — | SEC |
| 9 | Feb 18, 2025 | Wasserstein Debt Opportunities Management, LP | 13G/A | 7.1% | 6.10M | SEC |
| 10 | Feb 14, 2025 | Wasserstein Debt Opportunities Management, LP | 13G/A | 7.1% | 6.10M | SEC |
2 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Calumet Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Two Seas Capital LP | 5.96M | $213.97M |
| 2 | Blackrock, Inc. | 4.98M | $178.80M |
| 3 | Wasserstein Management, L.P. | 4.57M | $164.18M |
| 4 | Adams Asset Advisors, LLC | 3.20M | $114.96M |
| 5 | State Street Corp | 3.08M | $110.58M |
| 6 | Geode Capital Management, LLC | 1.87M | $67.25M |
| 7 | Bank Of America Corp /De/ | 1.15M | $41.42M |
| 8 | Morgan Stanley | 1.05M | $37.77M |
| 9 | Wellington Management Group LLP | 830.6K | $29.82M |
| 10 | Marshall Wace, LLP | 824.0K | $29.58M |