Calumet Ownership & Insider Activity

Calumet (CLMT) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 6.5% of shares outstanding. Institutional investors hold 24.9%.

Shares Outstanding

87.898M

Shares Float

69.462M

Insider Shares Owned

5.720M

Insider % Owned

6.5%

Institutional Shares Held

21.867M

Institutional % Held

24.9%

Ownership Breakdown

Net Insider Activity by Month

Calumet Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Sep 25, 2026	Stephen Mawer	DIRECTOR	SELL-OPTIONS	36.832K	—	—
Jul 1, 2026	Daniel Sajkowski	DIRECTOR	SELL	4.240K	$36.16	$153K
May 15, 2026	Group Heritage	—	SELL-OPTIONS	393.002K	$26.27	$7