DOSSIER · 13F Holders · Q2 2026
CLMT

CALUMET INC

205 institutions still hold CALUMET INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 131428104·205 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$1.5B
visible holders
Holders
205
filers reporting
Concentration
16.37%
Two Seas Capital LP #1
top holder share
AI Holders Summary · Q2 2026

205 institutions reported CLMT in Q2 2026. Two Seas Capital LP leads at 16.4% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Two Seas Capital LP
CIK 0001823138
$238M6.6M4.72%Q2 2026
02
BlackRock, Inc.
CIK 0002012383
$189M5.2M0.00%Q2 2026
03
Wasserstein Debt Opportunities Management, L.P.
CIK 0001751492
$143M4.0M54.09%Q2 2026
04
STATE STREET CORP
CIK 0000093751
$125M3.5M0.00%Q2 2026
05
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$124M3.5M0.00%Q2 2026
06
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$78M2.2M0.01%Q2 2026
07
Adams Asset Advisors, LLC
CIK 0001386929
$72M2.0M8.20%Q2 2026
08
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$71M2.0M0.00%Q2 2026
09
CITADEL ADVISORS LLC
CIK 0001423053
$63M1.8M0.01%Q2 2026
10
Graham Capital Management, L.P.
CIK 0001315421
$62M1.7M1.12%Q2 2026
11
BARCLAYS PLC
CIK 0000312069
$51M1.4M0.01%Q2 2026
12
Vanguard Portfolio Management
CIK 0002100121· Index
$37M1.0M0.00%Q2 2026
13
BANK OF AMERICA CORP /DE/
CIK 0000070858
$35M981K0.00%Q2 2026
14
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$29M811K0.01%Q2 2026
15
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$26M735K0.00%Q1 2026
16
MORGAN STANLEY
CIK 0000895421
$26M708K0.00%Q2 2026
17
MARSHALL WACE, LLP
CIK 0001318757
$22M617K0.02%Q2 2026
18
NORTHERN TRUST CORP
CIK 0000073124· Index
$22M615K0.00%Q2 2026
19
Voleon Capital Management LP
CIK 0001479847
$22M613K0.40%Q2 2026
20
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$20M553K0.00%Q2 2026
Page 1 of 11
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Insiders at CALUMET INC
Boss John G.Schumacher Amy MMawer Stephen PRaymond Paul CQuintana Julio MSajkowski Daniel JSanders Bradford TimothyNarwold Karen G