Wasserstein Management and Affiliates Decrease Stake in Calumet Inc. to 4.6%

This Schedule 13G/A (Amendment No. 6) filing, dated August 14, 2026, reports a decrease in beneficial ownership of Calumet Inc. (CLMT) by a group of reporting persons including Wasserstein Management, LP, Rajay Bagaria, and Joseph Dutton. As of the event date of June 30, 2026, the reporting group collectively holds 3,979,190 shares, representing 4.6% of the company's outstanding common stock. This is a reduction from previous levels, as indicated by the filing of Item 5, which confirms that the reporting persons now beneficially own 5% or less of the class of securities. The shares are held through various entities, including Wasserstein Master, LP (2.85%) and separately managed accounts. Rajay Bagaria maintains the highest individual beneficial ownership at 4.6% (3,979,190 shares) due to his control positions within the Adviser and Master Fund GP. The filing specifies that the securities were not acquired for the purpose of changing or influencing the control of the issuer.