Calumet CLMT Institutional Ownership

Updated Oct 11, 2026

Calumet, Inc. (NASDAQ:CLMT) appeared in the 13F filings of 188 institutional investors for the quarter ended June 30, 2026.

• These investors held 52.33% of Calumet's outstanding shares at the end of Q2 2026, up from 52.21% in Q1 2026.
• Total holdings of Calumet shares rose 1.16% from Q1 2026, and the number of holders rose 43.51% from Q2 2025.
• Of these 188 holders, 110 added to their positions, 54 reduced their stakes and 24 left their positions unchanged.
• Combined, institutional investors held 45.97Mn shares of CLMT as of Q2 2026, up 525.89K from the prior quarter and up 2.13Mn from a year earlier.
• Two Seas Capital LP was the top holder of Calumet as of June 30, 2026, with 6.62Mn shares, or 7.54% of shares outstanding.
• The largest position increases in CLMT for Q2 2026 were by Barclays PLC (+731.86K shares), Two Seas Capital LP (+659.42K shares), State Street Corp (+390.91K shares), Millennium Management LLC (+266.78K shares) and BlackRock, Inc. (+253.58K shares).
• The biggest cuts to CLMT positions during Q2 2026 came from Adams Asset Advisors, LLC (-1.2Mn shares), Wasserstein Management, L.P. (-608.47K shares), Morgan Stanley (-343.79K shares), Walleye Capital LLC (-304.28K shares) and JPMorgan Chase & Co (-242.44K shares).
• Business Quant data shows the 10 biggest positions in Calumet as of Q2 2026 were held by Two Seas Capital LP (6.62Mn shares), BlackRock, Inc. (5.23Mn shares), Wasserstein Management, L.P. (3.96Mn shares), State Street Corp (3.47Mn shares), Vanguard Capital Management LLC (3.45Mn shares), Adams Asset Advisors, LLC (2.01Mn shares), Geode Capital Management, LLC (1.96Mn shares), Barclays PLC (1.41Mn shares), Vanguard Portfolio Management LLC (1.03Mn shares) and Bank of America Corp (981.35K shares).