Calumet's top three insider shareholders as of September 09, 2026 are Group Heritage (TenPercentOwner, 12.98Mn shares), Group Heritage (TenPercentOwner, 12.44Mn shares), Jennifer Straumins (Director, 943.44K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Group Heritage | TenPercentOwner, Other | 25,420,422 | 0 | 25,420,422 | 89.8% | 05 Jun, 2026 |
| 2 | Jennifer Straumins | Director | 943,438 | 0 | 943,438 | 3.3% | 05 Dec, 2025 |
| 3 | Bruce A Fleming | Evp Montana Renewables | 549,963 | 0 | 549,963 | 1.9% | 10 Mar, 2026 |
| 4 | James S Carter | Director | 394,632 | 0 | 394,632 | 1.4% | 21 Jan, 2025 |
| 5 | Louis Todd Borgmann | Chief Executive Officer | 263,742 | 0 | 263,742 | 0.9% | 10 Mar, 2026 |
| 6 | Amy M Schumacher | Director | 258,160 | 0 | 258,160 | 0.9% | 10 Jul, 2026 |
| 7 | Scott Obermeier | Evp Specialties | 237,656 | 0 | 237,656 | 0.8% | 10 Mar, 2026 |
| 8 | Daniel J Sajkowski | Director | 81,958 | 0 | 81,958 | 0.3% | 10 Jul, 2026 |
| 9 | Gregory J Morical | Svp, General Counsel | 47,811 | 0 | 47,811 | 0.2% | 10 Mar, 2026 |
| 10 | John G. Boss | Director | 33,033 | 0 | 33,033 | 0.1% | 10 Jul, 2026 |
| 11 | Paul C Raymond | Director | 28,973 | 0 | 28,973 | 0.1% | 10 Jul, 2026 |
| 12 | Daniel L Sheets | Director | 26,824 | 0 | 26,824 | 0.1% | 15 May, 2025 |
| 13 | Karen A. Twitchell | Director | 13,389 | 0 | 13,389 | 0.0% | 10 Jul, 2026 |
| 14 | Karen G Narwold | Director | 7,067 | 0 | 7,067 | 0.0% | 10 Jul, 2026 |
| 15 | Julio M Quintana | Director | 7,067 | 0 | 7,067 | 0.0% | 10 Jul, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 20 Aug, 2026 | Amy M Schumacher | Director | Acquired A | 488 | $0.00 | $0 | 488 | Direct |
| 20 Aug, 2026 | Paul C Raymond | Director | Acquired A | 534 | $0.00 | $0 | 534 | Direct |
| 20 Aug, 2026 | Stephen P Mawer | Director | Acquired A | 690 | $0.00 | $0 | 690 | Direct |
| 20 Aug, 2026 | John G. Boss | Director | Acquired A | 160 | $0.00 | $0 | 160 | Direct |
| 20 Aug, 2026 | Amy M Schumacher | Director | Acquired A | 162 | $0.00 | $0 | 162 | Direct |
| 20 Aug, 2026 | Paul C Raymond | Director | Acquired A | 178 | $0.00 | $0 | 178 | Direct |
| 20 Aug, 2026 | John G. Boss | Director | Acquired A | 53 | $0.00 | $0 | 53 | Direct |
| 20 Aug, 2026 | Stephen P Mawer | Director | Acquired A | 230 | $0.00 | $0 | 230 | Direct |
| 09 Jul, 2026 | Daniel J Sajkowski | Director | Acquired M | 7,067 | $0.00 | $0 | 84,785 | Direct |
| 09 Jul, 2026 | Karen G Narwold | Director | Acquired M | 7,067 | $0.00 | $0 | 7,067 | Direct |
| 09 Jul, 2026 | Karen A. Twitchell | Director | Acquired M | 7,067 | $0.00 | $0 | 13,389 | Direct |
| 09 Jul, 2026 | Amy M Schumacher | Director | Acquired M | 7,067 | $0.00 | $0 | 258,160 | Direct |
| 09 Jul, 2026 | John G. Boss | Director | Acquired M | 7,067 | $0.00 | $0 | 35,860 | Direct |
| 09 Jul, 2026 | Julio M Quintana | Director | Acquired M | 7,067 | $0.00 | $0 | 7,067 | Direct |
| 09 Jul, 2026 | Paul C Raymond | Director | Acquired M | 7,067 | $0.00 | $0 | 31,800 | Direct |
| 09 Jul, 2026 | Karen A. Twitchell | Director | Disposed M | 7,067 | $0.00 | $0 | 0 | Direct |
| 09 Jul, 2026 | Daniel J Sajkowski | Director | Disposed F | 2,827 | $0.00 | $0 | 81,958 | Direct |
| 09 Jul, 2026 | John G. Boss | Director | Disposed F | 2,827 | $0.00 | $0 | 33,033 | Direct |
| 09 Jul, 2026 | Julio M Quintana | Director | Disposed M | 7,067 | $0.00 | $0 | 0 | Direct |
| 09 Jul, 2026 | Paul C Raymond | Director | Disposed F | 2,827 | $0.00 | $0 | 28,973 | Direct |