Calumet, Inc. (CLMT)
Nasdaq: CLMT · Petroleum Refining · Indianapolis, IN · filing with the SEC since 2024
Who owns Calumet, Inc.
As filed with the SECHolders of 5% or more
4
The Heritage Group holds 16.6% of Common Stock, par value $0.01 per share, as its SCHEDULE 13D/A filed Jun 5, 2026 says.
Directors and officers
16
report now, of 19 people on the record since 2024. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 4 named at left.
Holders of 5% or moreshare of the class, as filed
The Heritage Group
SCHEDULE 13D/A · filed Jun 5, 2026 · Common Stock, par value $0.01 per share
Two Seas Capital LP
SCHEDULE 13G/A · filed Aug 14, 2026 · Common Stock, par value $0.01 per share · 9.3% in Feb 17, 2026
Rajay Bagaria
SCHEDULE 13G/A · filed Feb 14, 2025 · Common Stock, par value $0.01 per share
Blackrock, Inc.
SCHEDULE 13G · filed Jul 17, 2025 · Common Stock
Adams Asset Advisors, LLC
SCHEDULE 13G/A · filed Apr 2, 2026 · Common Stock · reported falling below 5%, from 6.1% in Feb 13, 2025
Wasserstein Management L.P.
SCHEDULE 13G/A · filed Aug 14, 2026 · Common Stock, par value $0.01 per share · reported falling below 5%, from 7% in Mar 19, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%, from 5.38% in Jul 29, 2025
What CLMT reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Calumet Specialty Products Partners, L.P.
An entity · legal entity · owns, named in the 10-K filed Feb 27, 2026
Unrestricted Subsidiaries
An entity · consolidated entity · owns, named in the 10-K filed Feb 27, 2026
27 subsidiaries in 4 countries, from the list filed with the 10-K filed Feb 27, 2026.
Insider tradesForm 4
6sales
0purchases
0sales on a scheduled plan
3people selling
$300,000sold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Oct 21, 2025 to Oct 21, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Oct 21, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window4 of 20 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Heritage Group | 10% owner | 1 | $20.4M | 0 | 0 | $0 |
| Sajkowski Daniel J | director | 4 | $300,000 | 0 | 0 | $0 |
| Mawer Stephen P | director | 1 | $0 | 0 | 0 | $0 |
| Boss John G. | director | 1 | $0 | 0 | 0 | $0 |