CLMT · Insider trading · 13F holders · Congress trades
Calumet, Inc. (CLMT)
Who is buying and selling CLMT: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 16
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
CLMT at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 1 CLMT insider filed 1 sale worth $0.00 on SEC Form 4, and no open-market purchases.
- 16 13F filers hold CLMT among their 50 largest positions, worth $568.5M combined. The biggest bets by portfolio weight are Two Seas Capital LP (11.0%), Adams Asset Advisors, LLC (10.1%) and one8zero8, LLC (1.3%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
- No member of Congress has disclosed a trade in CLMT.
- CLMT last closed at $48.53 on Oct 29, 2026.
CLMT insider trading
Between Aug 1, 2026 and Oct 29, 2026, 1 CLMT insider filed 1 sale worth $0.00 on SEC Form 4, and no open-market purchases.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Sep 28, 2026 | Mawer Stephen P | Director | Sale | 24,555 | $0.00 | $0.00 | SEC |
Who owns CLMT? Hedge funds and superinvestors
16 13F filers hold CLMT among their 50 largest positions, worth $568.5M combined. The biggest bets by portfolio weight are Two Seas Capital LP (11.0%), Adams Asset Advisors, LLC (10.1%) and one8zero8, LLC (1.3%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Two Seas Capital LPHedge fund | 11.0% | $276.6M | 5,280,659 | -20.2% shares | Q3 2026 |
| Wasserstein Management, L.P.Hedge fund | 59.6% | $142.8M | 3,964,893 | — | Q2 2026 |
| Adams Asset Advisors, LLCWealth manager | 10.1% | $99.8M | 1,906,206 | -5.0% shares | Q3 2026 |
| Hennessy Advisors IncMutual fund manager | 0.5% | $13.5M | 258,000 | — | Q3 2026 |
| Apis Capital Advisors, LLCHedge fund | 0.8% | $8.4M | 232,000 | — | Q2 2026 |
| Diametric Capital, LPHedge fund | 0.8% | $7.4M | 206,372 | +351.2% shares | Q2 2026 |
| one8zero8, LLCWealth manager | 1.3% | $6.7M | 186,020 | -1.2% shares | Q2 2026 |
| Garnet Equity Capital Holdings, Inc.Hedge fund | 1.3% | $2.9M | 80,746 | -19.9% shares | Q2 2026 |
| Mirae Asset Securities (USA) Inc.Broker-dealer | 0.1% | $2.6M | 50,313 | — | Q3 2026 |
| Cobalt Capital Management, Inc.Hedge fund | 1.3% | $1.8M | 50,000 | New | Q2 2026 |
| O'Keefe Stevens Advisory, Inc.Wealth manager | 0.3% | $1.6M | 30,435 | +5.0% shares | Q3 2026 |
| ELCO Management Co., LLCWealth manager | 0.7% | $1.5M | 28,950 | -4.9% shares | Q3 2026 |
| Gimbal FinancialWealth manager | 0.8% | $1.3M | 24,532 | -0.1% shares | Q3 2026 |
| Rangeley Capital, LLCHedge fund | 0.6% | $684K | 19,000 | -64.2% shares | Q2 2026 |
| Lombard Odier Asset Management (USA) CorpHedge fund | 0.9% | $644K | 17,868 | -70.0% shares | Q2 2026 |
| Palo Duro Investment Partners, LPHedge fund | 0.0% | $210K | 5,825 | +4.0% shares | Q2 2026 |
Each manager counts with its latest 13F (Q3 2026: 7, Q2 2026: 9). Screen CLMT in the grand portfolio →
CLMT stock trades by members of Congress
No member of Congress has disclosed a trade in CLMT.
CLMT questions and answers
Are insiders buying CLMT stock?
Between Aug 1, 2026 and Oct 29, 2026, 1 CLMT insider filed 1 sale worth $0.00 on SEC Form 4, and no open-market purchases.
Which hedge funds own CLMT?
16 13F filers hold CLMT among their 50 largest positions, worth $568.5M combined. The biggest bets by portfolio weight are Two Seas Capital LP (11.0%), Adams Asset Advisors, LLC (10.1%) and one8zero8, LLC (1.3%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
Has Congress traded CLMT?
No member of Congress has disclosed a trade in CLMT.
Who is the largest holder of CLMT?
Among 13F filers, Two Seas Capital LP reports the largest CLMT position, $276.6M (5,280,659 shares) in its Q3 2026 13F. The biggest bet by portfolio weight is Two Seas Capital LP's: 11.0% of its portfolio.
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