Calumet Specialty Products Partners, L.P. (CLMT) Ownership
CLMT ownership summary
as of October 18, 2026- Institutions
- 52.1% of shares outstanding
- Insiders
- 20.15% of shares outstanding
- Shares outstanding
- 87.9M
- Float
- 60.2M shares available to trade
- Short interest
- 5.16% 3.6M shares short
- Days to cover
- 2.39 short interest down 20.1% vs prior month
- Institutions 52.08%
- Insiders 20.15%
- Other investors 27.77%
CLMT top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Two Seas Capital LP | 6.78% | 6.0M | $344.2M | −1.0M (−14.6%) | March 31, 2026 |
| 2 | BlackRock Inc | 5.95% | 5.2M | $302.3M | +253,578 (+5.1%) | June 30, 2026 |
| 3 | Wasserstein Debt Opportunities Management LP | 4.51% | 4.0M | $229.0M | −608,470 (−13.3%) | June 30, 2026 |
| 4 | State Street Corp | 3.95% | 3.5M | $200.5M | +390,906 (+12.7%) | June 30, 2026 |
| 5 | Vanguard Capital Management, LLC | 3.93% | 3.5M | $199.5M | +18,517 (+0.5%) | June 30, 2026 |
| 6 | Adams Asset Advisors LLC | 2.28% | 2.0M | $115.9M | −1.2M (−37.3%) | June 30, 2026 |
| 7 | Geode Capital Management, LLC | 2.23% | 2.0M | $113.3M | +89,427 (+4.8%) | June 30, 2026 |
| 8 | Barclays PLC | 1.60% | 1.4M | $81.4M | +731,860 (+108.0%) | June 30, 2026 |
| 9 | Vanguard Portfolio Management, LLC | 1.17% | 1.0M | $59.2M | +95,069 (+10.2%) | June 30, 2026 |
| 10 | Bank of America Corp | 1.12% | 981K | $56.7M | −172,391 (−14.9%) | June 30, 2026 |
| 11 | Wellington Management Company LLP | 0.92% | 811K | $46.9M | −19,076 (−2.3%) | June 30, 2026 |
| 12 | Citadel Advisors Llc | 0.87% | 762K | $44.0M | +226,051 (+42.2%) | June 30, 2026 |
| 13 | Morgan Stanley - Brokerage Accounts | 0.81% | 708K | $40.9M | −343,791 (−32.7%) | June 30, 2026 |
| 14 | Marshall Wace Asset Management Ltd | 0.70% | 617K | $35.6M | −206,890 (−25.1%) | June 30, 2026 |
| 15 | Northern Trust Corp | 0.70% | 615K | $35.5M | +34,173 (+5.9%) | June 30, 2026 |
| 16 | Voleon Capital Management LP | 0.70% | 613K | $35.4M | −69,426 (−10.2%) | June 30, 2026 |
| 17 | Charles Schwab Investment Management Inc | 0.63% | 553K | $31.9M | +12,124 (+2.2%) | June 30, 2026 |
| 18 | Brown Advisory Holdings Inc | 0.61% | 535K | $30.9M | −30,680 (−5.4%) | June 30, 2026 |
| 19 | Citigroup Inc | 0.55% | 481K | $27.8M | −6,356 (−1.3%) | June 30, 2026 |
| 20 | BNP Paribas Arbitrage, SA | 0.55% | 479K | $27.7M | +172,374 (+56.2%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 10 holders added 2.0M shares and 10 cut 3.7M.
CLMT top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 3.00% | 2.6M | $152.2M | −3,652 (−0.1%) | August 31, 2026 |
| 2 | iShares Russell 2000 ETF | 2.04% | 1.8M | $103.7M | −20,672 (−1.1%) | September 30, 2026 |
| 3 | SttStrtSPDRS&POil&GasExplor&ProdtnETF | 1.51% | 1.3M | $76.8M | −46,186 (−3.4%) | September 30, 2026 |
| 4 | Fidelity Small Cap Index | 0.86% | 755K | $43.6M | +6,953 (+0.9%) | July 31, 2026 |
| 5 | iShares Russell 2000 Growth ETF | 0.55% | 483K | $27.9M | −611 (−0.1%) | September 30, 2026 |
| 6 | Vanguard Energy ETF | 0.53% | 468K | $27.0M | −2,089 (−0.4%) | September 30, 2026 |
| 7 | Vanguard Russell 2000 ETF | 0.46% | 402K | $23.2M | +4,470 (+1.1%) | September 30, 2026 |
| 8 | Schwab US Small-Cap ETF™ | 0.42% | 370K | $21.4M | +243 (+0.1%) | September 30, 2026 |
| 9 | Fidelity Extended Market Index | 0.36% | 312K | $18.0M | −2,866 (−0.9%) | August 31, 2026 |
| 10 | Hennessy Cornerstone Growth Investor | 0.29% | 258K | $14.9M | −25,200 (−8.9%) | September 30, 2026 |
| 11 | First Trust Small Cap Gr AlphaDEX® ETF | 0.24% | 214K | $12.3M | +377 (+0.2%) | September 30, 2026 |
| 12 | Fidelity® SAI Small-Mid Cap Momt Idx | 0.23% | 199K | $11.5M | +2,511 (+1.3%) | August 31, 2026 |
| 13 | VanEck Oil Refiners ETF | 0.20% | 177K | $10.2M | +1,272 (+0.7%) | September 30, 2026 |
| 14 | Harvest S&P OlGsExplPrdSltIds ETF (QDII) | 0.20% | 176K | $10.1M | +106,076 (+152.3%) | June 30, 2026 |
| 15 | Hwabao WP S&P Oil&Gas E&P QDII-LOF RMB A | 0.20% | 174K | $10.0M | +60,998 (+54.1%) | June 30, 2026 |
| 16 | Schwab Small Cap Index | 0.19% | 169K | $9.8M | +849 (+0.5%) | August 31, 2026 |
| 17 | iShares Russell 2000 Value ETF | 0.19% | 167K | $9.6M | +254 (+0.2%) | September 30, 2026 |
| 18 | Janus Henderson Small/Md Cp Gr Alpha ETF | 0.16% | 142K | $8.2M | −2,611 (−1.8%) | September 30, 2026 |
| 19 | iShares Russell 2000 Small-Cap Idx Instl | 0.15% | 129K | $7.5M | — | August 31, 2026 |
| 20 | Fidelity Total Market Index | 0.14% | 123K | $7.1M | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
CLMT insider transactions
latest 8| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-01 | Daniel J Sajkowski | Sell | $34.46 | 3,310 | $114,063 |
| 2025-07-01 | Daniel J Sajkowski | Sell | $15.77 | 2,000 | $31,540 |
| 2025-06-16 | Gregory J Morical | Sell | $16.69 | 25,123 | $419,303 |
| 2025-06-16 | Jennifer Straumins | Sell | $16.23 | 100,000 | $1.6M |
| 2025-06-13 | Jennifer Straumins | Sell | $15.08 | 50,000 | $754,000 |
| 2025-06-05 | Jennifer Straumins | Sell | $13.17 | 100,000 | $1.3M |
| 2025-06-02 | Daniel J Sajkowski | Sell | $13.40 | 20,000 | $268,000 |
| 2025-05-01 | Daniel J Sajkowski | Sell | $10.66 | 20,000 | $213,200 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
CLMT shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns CLMT
Institutional investors own 52.1% of Calumet's shares and insiders 20.15%. The largest holder is Two Seas Capital LP with 6.78% of the shares (6.0M), as of March 31, 2026. Among the top 20 institutions, 10 added shares and 10 reduced their stake in the latest filings. Short interest is 5.16% of the float, or 2.39 days of average trading volume. The share count rose 24.6% since 2014.
Related: CLMT analyst forecast, CLMT key metrics. See the CLMT stock overview for the latest quote and news.
CLMT ownership FAQ
Who owns the most Calumet stock?
The largest shareholders of Calumet are Two Seas Capital LP (6.78%), BlackRock Inc (5.95%), Wasserstein Debt Opportunities Management LP (4.51%), State Street Corp (3.95%), Vanguard Capital Management, LLC (3.93%).
What percentage of Calumet is owned by institutions?
Institutions hold 52.1% of Calumet's shares outstanding; insiders hold 20.15%.
Which funds own Calumet?
The largest fund holders of Calumet are Vanguard MStar Total Stk Mkt Idx Invest (3.00%), iShares Russell 2000 ETF (2.04%), SttStrtSPDRS&POil&GasExplor&ProdtnETF (1.51%), Fidelity Small Cap Index (0.86%), iShares Russell 2000 Growth ETF (0.55%).
What is Calumet's short interest?
3.6M shares of Calumet were sold short, 5.16% of the float; at the average daily volume it would take 2.39 days to cover.
Are insiders buying or selling Calumet?
Of the latest 8 reported insider transactions in Calumet (since May 1, 2025), 0 were purchases and 8 were sales.
How many shares of Calumet are outstanding?
Calumet has 87.9M shares outstanding, of which 60.2M are in the public float.