Security Snapshot

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

CUSIP: 131428104

13F Institutional Holders and Ownership History from Q2 2024 to Q3 2026

13F reference period

Q3 2026

Institutions Reporting

120

Shares (Excl. Options)

25.47MFull value: 25,472,955 · shares · 30 Sep 2026

Price

$52.38

The headline uses the Q3 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.

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Latest holder snapshot 5 signals
Portfolio coverage rank
0.01%
Share change
+573,089
Value change
+$36,164,896
Number of holders
120
Security identity Names, identifiers, and filing context for this profile. 1 source field
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
88,262,773
SEC-reported price per share
$52.38
Insider filing price
$52.38
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source

Key facts

  • CLMT - Calumet, Inc. /DE - Common Stock, par value $0.01 per share is tracked under CUSIP 131428104.
  • 120 institutions reported positions in Q3 2026.
  • 6 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 190 to 120 between Q2 2026 and Q3 2026.
  • SEC-reported value moved from
    $1.66BFull value: $1,658,953,916 · USD · 30 Jun 2026
    to
    $1.33BFull value: $1,334,125,797 · USD · 30 Sep 2026
    .

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 120 institutions filings for Q3 2026.

Open SEC evidence

Security key

131428104

13F reference period

Q3 2026

13F holders

120

13D/G owners

6

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
6
Security
CLMT
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Heritage Group 17% $466,484,702 14,523,185 The Heritage Group 05 Jun 2026
Two Seas Capital LP 7.5% -20% $261,279,875 -$58,357,224 6,619,708 -18% Two Seas Capital LP 30 Jun 2026
Wasserstein Debt Opportunities Fund, LP 7.1% $66,225,192 6,098,084 Rajay Bagaria 31 Dec 2024
BlackRock, Inc. 5.4% $74,179,424 4,708,310 BlackRock, Inc. 30 Jun 2025
Adams Asset Advisors, LLC 4.7% -23% $114,287,458 -$33,480,184 4,061,388 -23% Adams Asset Advisors, LLC 16 Jan 2026
Wasserstein Management, L.P. 4.6% -34% $157,058,629 -$81,078,840 3,979,190 -34% Rajay Bagaria 30 Jun 2026
As of 30 Sep 2026, 120 institutional investors reported holding
25.47MFull value: 25,472,955 · shares · 30 Sep 2026
shares of Calumet, Inc. /DE - Common Stock, par value $0.01 per share (CLMT). This represents 29% of the company’s total
88.26MFull value: 88,262,773 · shares · Stored outstanding share count
outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
26%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Two Seas Capital LP 6% 5,280,659 -20% 11% $276,600,918
VANGUARD CAPITAL MANAGEMENT LLC 4% 3,519,602 +1.9% 0% $184,356,753
STATE STREET CORP 3.4% 3,012,737 -13% 0% $157,807,164
GEODE CAPITAL MANAGEMENT, LLC 2.3% 2,003,337 +2.1% 0.01% $104,952,937
Adams Asset Advisors, LLC 2.2% 1,906,206 -5% 10% $99,847,070
Tyro Capital Management LLC 1.2% 1,077,804 10% $56,455,374
VANGUARD PORTFOLIO MANAGEMENT LLC 1.1% 1,008,316 -1.7% 0% $52,815,592
MORGAN STANLEY 1.1% 992,948 +40% 0% $52,010,617
VANGUARD FIDUCIARY TRUST CO 0.57% 501,999 +6.4% 0.01% $26,294,708
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.51% 448,361 0.01% $23,485,149
FIRST TRUST ADVISORS LP 0.48% 428,009 +43% 0.01% $22,419,111
RENAISSANCE TECHNOLOGIES LLC 0.46% 409,000 +27% 0.03% $21,423,420
GROUP ONE TRADING LLC 0.37% 323,278 +80% 0.52% $16,933,302
OMERS ADMINISTRATION Corp 0.35% 310,352 0.1% $16,256,238
HENNESSY ADVISORS INC 0.29% 258,000 -8.9% 0.51% $13,514,040
DAVENPORT & Co LLC 0.28% 249,181 +165% 0.07% $13,052,101
MARSHALL WACE, LLP 0.24% 212,990 -65% 0.01% $11,156,417
Goodlander Investment Management, LLC 0.23% 200,000 4.3% $10,476,000
COBALT CAPITAL MANAGEMENT, INC. 0.22% 198,020 +296% 6% $10,372,288
IMC-Chicago, LLC 0.22% 190,836 +78% 0.09% $9,995,990
VAN ECK ASSOCIATES CORP 0.2% 177,351 +249% 0.01% $9,289,645
one8zero8, LLC 0.2% 173,730 -6.6% 1.8% $9,099,977
BNP PARIBAS FINANCIAL MARKETS 0.17% 147,705 0% $7,736,788
DIMENSIONAL FUND ADVISORS LP 0.17% 147,218 -65% 0% $7,711,279
Swiss National Bank 0.16% 141,000 +1.2% 0% $7,385,580

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
10
Headline period
Q3 2026
Rows shown
1-10 of 10
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q3 25,472,955 $1,334,125,797 +$36,164,896 $52.38 120
2026 Q2 46,047,178 $1,658,953,916 +$13,504,238 $36.02 190
2026 Q1 45,447,558 $1,629,703,791 +$45,892,814 $35.90 181
2025 Q4 45,056,162 $895,115,952 -$813,475 $19.87 140
2025 Q3 45,327,710 $827,261,131 +$19,058,964 $18.25 148
2025 Q2 44,375,848 $699,143,763 +$74,382,984 $15.76 134
2025 Q1 39,712,792 $503,549,426 +$20,401,127 $12.68 129
2024 Q4 37,050,550 $815,771,457 +$89,781,954 $22.02 123
2024 Q3 31,294,870 $557,725,506 +$536,163,797 $17.82 90
2024 Q2 69,614 $1,117,304 +$1,117,304 $16.05 3
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