Wasserstein group (CLMT) discloses 4.6% Calumet Inc. ownership in Schedule 13G/A
Wasserstein Management L.P. and related entities filed an amended Schedule 13G/A for Calumet Inc. reporting beneficial ownership of 3,964,893 shares, or 4.6% of outstanding common stock, as of June 30, 2026. The filing cites 87,147,147 shares outstanding as of May 8, 2026 and lists shared voting and dispositive control among affiliates and individuals.
How this was made
The 30-second read
Why it matters
This is primarily a regulatory disclosure of ownership level and structure. It can inform traders about potential shareholder influence, but the text does not describe an activist agenda, transaction, or operational change.
Market read
Traders may use the disclosure to update shareholder maps and watch for follow-on filings, but there is no immediate fundamental catalyst described.
What to watch
The filing details shared voting and dispositive power among affiliates and named control persons, which could matter for future governance discussions even without crossing 5%.
Background
The article summarizes an amended Schedule 13G/A filed by Wasserstein Management L.P. and related entities reporting beneficial ownership in Calumet Inc. as of June 30, 2026.
Ticker impact
Wasserstein Management discloses an amended Schedule 13G/A showing beneficial ownership of 3,964,893 shares, or 4.6%, in Calumet Inc.
Low likelihood of a sustained move; any reaction is likely limited to short-term sentiment around shareholder activity.
Schedule 13G/A at 4.6% is below the 5% threshold and the text provides no catalyst like a bid, activist campaign, or operational change.
Market effects
Minimal, since the article is a single-filer ownership disclosure with no sector-wide signal.
None indicated.
None indicated.
Counterpoint
A 4.6% holder can still be accumulating quietly; traders may underreact if the filing is the first visible step toward a larger stake.
Key entities
- issuerCalumet Inc.
Subject of the Schedule 13G/A ownership disclosure, with beneficial ownership reported at 4.6%.
- reporting_person_groupWasserstein Management L.P.
Reporting group disclosing beneficial ownership of 3,964,893 shares (4.6%) via affiliated entities and accounts.
- control_personRajay Bagaria
Named control person in the reporting group’s beneficial ownership structure.
- control_personJoseph Dutton
Named control person in the reporting group’s beneficial ownership structure.




