SCHEDULE 13D

Calumet Inc

Common Stock, par value $0.01 per share · CUSIP: 131428104

Event date: 2025-02-21

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Wasserstein Debt Opportunities Management, L.P.Reported CIK 0001751492

  Shares: 5,683,832.00 · Class: 6.6%

• WDO Management GP, LLC

  Shares: 5,683,832.00 · Class: 6.6%

• Wasserstein Debt Opportunities Master, LP

  Shares: 4,176,672.00 · Class: 4.9%

• Wasserstein Debt Opportunities Genpar, LLC

  Shares: 4,176,672.00 · Class: 4.9%

• Bagaria RajayReported CIK 0001750572

  Shares: 6,033,379.00 · Class: 7.0%

• Joseph Dutton

  Shares: 5,687,137.00 · Class: 6.6%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.