What does CUSIP 131428104 represent in this 13F holders report?

CUSIP 131428104 is the security identifier for CLMT - Calumet, Inc. /DE - Common Stock, par value $0.01 per share used to aggregate holder disclosures.

How many institutions held CLMT - Calumet, Inc. /DE - Common Stock, par value $0.01 per share in Q2 2026?

27 institutional investors reported CLMT - Calumet, Inc. /DE - Common Stock, par value $0.01 per share for Q2 2026. Use the holders table for investor-level position and value details.

Calumet, Inc. /DE - Common Stock, par value $0.01 per share (CLMT)

CUSIP: 131428104

Q2 2026 13F Holders as of 30 Jun 2026

Security type / class: Equity / Common Stock, par value $0.01 per share
Total 13F shares: 2,858,466
Total 13F value: $102,888,815
Share change: -729,047
SEC-reported price per share: $36.02
Number of holders: 27
Value change: -$26,143,024
Number of buys: 14
Number of sells: 6
Shares outstanding: 87,700,393

Security key

131428104

Report period

Q2 2026

Institutions

Top holders

CLMT full security history Ownership snapshot Full 13F holder table Calumet, Inc. /DE SEC filings Calumet, Inc. /DE company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 131428104

Recent filing periods:

Q2 2026

Ownership snapshot

Top reported holders of CLMT - Calumet, Inc. /DE - Common Stock, par value $0.01 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Heritage Group

Disclosed value leader

Heritage Group

Comparable rows

15/15

Latest evidence

05 Jun 2026

3/4/5 13D/G 13F Lead comparable stake: 17% 13D/G row: Heritage Group Showing 1-6 of 15 holder rows.

Quick read

Heritage Group leads the comparable SEC ownership view at 17%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Heritage Group's linked filing trail.

Comparable ownership Top 5

Heritage Group 17%

Two Seas Capital LP 9.3%

Wasserstein Debt Opportunities Fu... 7.1%

Wasserstein Management, L.P. 7%

BlackRock, Inc. 5.4%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Heritage Group	3/4/5 13D/G 13(d) 10% Group Member, 10%+ Owner · The Heritage Group 3/4/5 13D/G	17% from 13D/G	$478,302,340 13,323,185 shares	-$20,400,007	05 Jun 2026
Two Seas Capital LP	13F 13D/G Company 13F 13D/G	9.3% from 13D/G	$213,974,483 5,960,292 shares	—	31 Mar 2026
Wasserstein Debt Opportunities Fund, LP	13D/G Rajay Bagaria 13D/G	7.1%	$66,225,192 6,098,084 shares	$0	31 Dec 2024
Wasserstein Management, L.P.	13F 13D/G Company · Bagaria Rajay 13F 13D/G	7% from 13D/G	$164,183,732 4,573,363 shares	—	31 Mar 2026
BlackRock, Inc.	13F 13D/G Company 13F 13D/G	5.4% from 13D/G	$178,800,955 4,980,528 shares	—	31 Mar 2026
Adams Asset Advisors, LLC	13F 13D/G Company 13F 13D/G	4.7% from 13D/G	$114,960,129 3,202,232 shares	—	31 Mar 2026

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q2 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

2,858,466

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q2 2026 vs Q1 2026 Across Filers

Q1 2026 holders

180

Q2 2026 holders

Holder diff

-153

Investor	Q1 2026 Shares	Q2 2026 Shares	Share Diff	Share Chg %	Q1 2026 value	Q2 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend