Latest Period
Q2 2026
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 Q2 2026
Institutions Reporting
187
Shares (Excl. Options)
45,955,684
Price
$36.02
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- Security type / class
- Equity / Common Stock, par value $0.01 per share
- Symbol
- CLMT on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 45,955,684
- Total 13F value
- $1,655,658,301
- Portfolio coverage rank
- 0.01%
- Share change
- +405,251
- Value change
- +$14,839,394
- Number of holders
- 187
- Underlying class
- Common Stock, par value $0.01 per share
- Shares outstanding
- 88,262,773
- SEC-reported price per share
- $44.17
- Insider filing price
- $44.17
Latest holder snapshot
5 signals
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
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- CLMT - Calumet, Inc. /DE - Common Stock, par value $0.01 per share is tracked under CUSIP 131428104.
- 187 institutions reported positions in Q2 2026.
- 6 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 180 to 187 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $1,628,960,661 to $1,655,658,301.
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
Open SEC evidence
Latest holder context comes from 187 institutions filings for Q2 2026.
Security key
131428104
Latest holder period
Q2 2026
13F holders
187
13D/G owners
6
CIK / CUSIP context first
Open Q2 2026 holders
CLMT full holder history
Calumet, Inc. /DE SEC filings
Calumet, Inc. /DE company facts
Calumet, Inc. /DE insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 131428104:
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 Jun 2026, 187 institutional investors reported holding 45,955,684 shares of Calumet, Inc. /DE - Common Stock, par value $0.01 per share (CLMT). This represents 52% of the company’s total 88,262,773 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
43%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Two Seas Capital LP | 7.5% | 6,619,708 | +11% | 9.1% | $238,441,882 |
| BlackRock, Inc. | 5.9% | 5,234,106 | +5.1% | 0% | $188,532,498 |
| Wasserstein Management, L.P. | 4.5% | 3,964,893 | -13% | 60% | $142,815,446 |
| STATE STREET CORP | 3.9% | 3,471,065 | +13% | 0% | $125,027,761 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.9% | 3,453,911 | +0.54% | 0% | $124,409,874 |
| Adams Asset Advisors, LLC | 2.3% | 2,006,206 | -37% | 8.2% | $72,263,540 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.2% | 1,962,286 | +4.8% | 0% | $70,693,348 |
| BARCLAYS PLC | 1.6% | 1,409,773 | +108% | 0.02% | $50,780,023 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.2% | 1,025,321 | +10% | 0% | $36,932,062 |
| BANK OF AMERICA CORP /DE/ | 1.1% | 981,353 | -15% | 0% | $35,348,335 |
| WELLINGTON MANAGEMENT GROUP LLP | 0.92% | 811,482 | -2.3% | 0.01% | $29,229,582 |
| CITADEL ADVISORS LLC | 0.86% | 762,084 | +42% | 0.02% | $27,450,266 |
| MORGAN STANLEY | 0.8% | 708,206 | -33% | 0% | $25,509,581 |
| MARSHALL WACE, LLP | 0.7% | 617,138 | -25% | 0.02% | $22,229,309 |
| NORTHERN TRUST CORP | 0.7% | 615,263 | +5.9% | 0% | $22,161,774 |
| Voleon Capital Management LP | 0.69% | 612,506 | -10% | 0.4% | $22,062,466 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.63% | 552,791 | +2.2% | 0% | $19,911,532 |
| BROWN ADVISORY INC | 0.61% | 535,044 | -5.4% | 0.03% | $19,272,285 |
| CITIGROUP INC | 0.54% | 480,623 | -1.3% | 0.01% | $17,312,041 |
| BNP PARIBAS FINANCIAL MARKETS | 0.54% | 479,261 | 0% | 0.01% | $17,262,981 |
| VANGUARD FIDUCIARY TRUST CO | 0.53% | 471,716 | +8.3% | 0% | $16,991,210 |
| DIMENSIONAL FUND ADVISORS LP | 0.48% | 422,091 | 0% | $15,203,718 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.44% | 386,077 | +57% | 0.01% | $13,906,494 |
| GOLDMAN SACHS GROUP INC | 0.44% | 385,555 | -4.1% | 0% | $13,887,691 |
| JPMORGAN CHASE & CO | 0.38% | 338,696 | -42% | 0% | $12,255,831 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
9
Latest
Q2 2026
Rows shown
1-9 of 9
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 45,955,684 | $1,655,658,301 | +$14,839,394 | $36.02 | 187 |
| 2026 Q1 | 45,426,858 | $1,628,960,661 | +$45,149,684 | $35.90 | 180 |
| 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 |