The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 9, 2026 | Narwold Karen G | Director | Option exercise(M) | 7K | — | $0 |
| Jul 9, 2026 | Narwold Karen G | Director | Option exercise(M) | 7K | — | $0 |
| Jul 9, 2026 | Twitchell Karen A. | Director | Option exercise(M) | 7K | — | $0 |
| Jul 9, 2026 | Twitchell Karen A. | Director | Option exercise(M) | 7K | — | $0 |
| Jul 9, 2026 | Boss John G. | Director | Option exercise(M) | 7K | — | $0 |
| Jul 9, 2026 | Boss John G. | Director | Tax withholding(F) | 3K | — | $0 |
| Jul 9, 2026 | Boss John G. | Director | Option exercise(M) | 7K | — | $0 |
| Jul 9, 2026 | Mawer Stephen P | Director | Option exercise(M) | 14K | — | $0 |
| Jul 9, 2026 | Mawer Stephen P | Director | Tax withholding(F) | 6K | — | $0 |
| Jul 9, 2026 | Mawer Stephen P | Director | Option exercise(M) | 14K | — | $0 |
| Jul 9, 2026 | Raymond Paul C | Director | Option exercise(M) | 7K | — | $0 |
| Jul 9, 2026 | Raymond Paul C | Director | Tax withholding(F) | 3K | — | $0 |
| Jul 9, 2026 | Raymond Paul C | Director | Option exercise(M) | 7K | — | $0 |
| Jul 9, 2026 | Sajkowski Daniel J | Director | Option exercise(M) | 7K | — | $0 |
| Jul 9, 2026 | Sajkowski Daniel J | Director | Tax withholding(F) | 3K | — | $0 |
| Jul 9, 2026 | Sajkowski Daniel J | Director | Option exercise(M) | 7K | — | $0 |
| Jul 9, 2026 | Schumacher Amy M | Director | Option exercise(M) | 7K | — | $0 |
| Jul 9, 2026 | Schumacher Amy M | Director | Option exercise(M) | 7K | — | $0 |
| Jul 9, 2026 | Quintana Julio M | Director | Option exercise(M) | 7K | — | $0 |
| Jul 9, 2026 | Quintana Julio M | Director | Option exercise(M) | 7K | — | $0 |
| Jul 1, 2026 | Sajkowski Daniel J | Director | Sell(S) | 4K | $36.16 | $153K |
| Jun 5, 2026 | Heritage Group | 10% Owner | Gift(G) | 540K | — | $0 |
| Jun 2, 2026 | Twitchell Karen A. | Director | Grant(A) | 3K | — | $0 |
| Jun 2, 2026 | Boss John G. | Director | Grant(A) | 3K | — | $0 |
| Jun 2, 2026 | Quintana Julio M | Director | Grant(A) | 3K | — | $0 |
| Jun 2, 2026 | Mawer Stephen P | Director | Grant(A) | 6K | — | $0 |
| Jun 2, 2026 | Schumacher Amy M | Director | Grant(A) | 3K | — | $0 |
| Jun 2, 2026 | Sajkowski Daniel J | Director | Grant(A) | 3K | — | $0 |
| Jun 2, 2026 | Sanders Bradford Timothy | Director | Grant(A) | 3K | — | $0 |
| Jun 2, 2026 | Narwold Karen G | Director | Grant(A) | 3K | — | $0 |
| Jun 2, 2026 | Raymond Paul C | Director | Grant(A) | 3K | — | $0 |
| May 28, 2026 | Boss John G. | Director | Grant(A) | 211 | — | $0 |
| May 28, 2026 | Boss John G. | Director | Grant(A) | 70 | — | $0 |
| May 28, 2026 | Raymond Paul C | Director | Grant(A) | 704 | — | $0 |
| May 28, 2026 | Raymond Paul C | Director | Grant(A) | 234 | — | $0 |
| May 28, 2026 | Schumacher Amy M | Director | Grant(A) | 644 | — | $0 |
| May 28, 2026 | Schumacher Amy M | Director | Grant(A) | 214 | — | $0 |
| May 28, 2026 | Mawer Stephen P | Director | Grant(A) | 968 | — | $0 |
| May 28, 2026 | Mawer Stephen P | Director | Grant(A) | 322 | — | $0 |
| May 15, 2026 | Heritage Group | 10% Owner | Option exercise(X) | 1.0M | $20.00 | $20.4M |
| May 15, 2026 | Heritage Group | 10% Owner | Sell(S) | 627K | $32.54 | $20.4M |
| May 15, 2026 | Heritage Group | 10% Owner | Option exercise(X) | 1.0M | — | — |
| Apr 1, 2026 | Sajkowski Daniel J | Director | Sell(S) | 3K | $34.46 | $114K |
| Mar 31, 2026 | Borgmann Louis Todd | CHIEF EXECUTIVE OFFICER | Grant(A) | 7K | — | $0 |
| Mar 31, 2026 | Borgmann Louis Todd | CHIEF EXECUTIVE OFFICER | Grant(A) | 2K | — | $0 |
| Mar 31, 2026 | Morical Gregory J | SVP, GENERAL COUNSEL | Grant(A) | 1K | — | $0 |
| Mar 31, 2026 | Morical Gregory J | SVP, GENERAL COUNSEL | Grant(A) | 334 | — | $0 |
| Mar 31, 2026 | Fleming Bruce A | EVP - MONTANA RENEWABLES | Grant(A) | 13K | — | $0 |
| Mar 31, 2026 | Fleming Bruce A | EVP - MONTANA RENEWABLES | Grant(A) | 4K | — | $0 |
| Mar 31, 2026 | Krutz John Robert | Chief Accounting Officer | Grant(A) | 931 | — | $0 |
| Mar 31, 2026 | Krutz John Robert | Chief Accounting Officer | Grant(A) | 310 | — | $0 |
| Mar 9, 2026 | Mawer Stephen P | Director | Tax withholding(F) | 13K | — | $0 |
| Mar 9, 2026 | Mawer Stephen P | Director | Option exercise(M) | 28K | — | $0 |
| Mar 9, 2026 | Mawer Stephen P | Director | Option exercise(M) | 28K | — | $0 |
| Mar 9, 2026 | Fleming Bruce A | EVP - MONTANA RENEWABLES | Tax withholding(F) | 8K | — | $0 |
| Mar 9, 2026 | Fleming Bruce A | EVP - MONTANA RENEWABLES | Option exercise(M) | 21K | — | $0 |
| Mar 9, 2026 | Fleming Bruce A | EVP - MONTANA RENEWABLES | Option exercise(M) | 21K | — | $0 |
| Mar 9, 2026 | Obermeier Scott | EVP - SPECIALTIES | Option exercise(M) | 24K | — | $0 |
| Mar 9, 2026 | Obermeier Scott | EVP - SPECIALTIES | Tax withholding(F) | 11K | — | $0 |
| Mar 9, 2026 | Obermeier Scott | EVP - SPECIALTIES | Option exercise(M) | 24K | — | $0 |
| Mar 9, 2026 | Borgmann Louis Todd | CHIEF EXECUTIVE OFFICER | Tax withholding(F) | 22K | — | $0 |
| Mar 9, 2026 | Borgmann Louis Todd | CHIEF EXECUTIVE OFFICER | Option exercise(M) | 50K | — | $0 |
| Mar 9, 2026 | Borgmann Louis Todd | CHIEF EXECUTIVE OFFICER | Option exercise(M) | 50K | — | $0 |
| Mar 9, 2026 | Morical Gregory J | SVP, GENERAL COUNSEL | Option exercise(M) | 15K | — | $0 |
| Mar 9, 2026 | Morical Gregory J | SVP, GENERAL COUNSEL | Tax withholding(F) | 7K | — | $0 |
| Mar 9, 2026 | Morical Gregory J | SVP, GENERAL COUNSEL | Option exercise(M) | 15K | — | $0 |
| Feb 24, 2026 | Raymond Paul C | Director | Grant(A) | 854 | — | $0 |
| Feb 24, 2026 | Raymond Paul C | Director | Grant(A) | 284 | — | $0 |
| Feb 24, 2026 | Schumacher Amy M | Director | Grant(A) | 260 | — | $0 |
| Feb 24, 2026 | Schumacher Amy M | Director | Grant(A) | 782 | — | $0 |
| Feb 24, 2026 | Mawer Stephen P | Director | Grant(A) | 391 | — | $0 |
| Feb 24, 2026 | Mawer Stephen P | Director | Grant(A) | 1K | — | $0 |
| Feb 24, 2026 | Fleming Bruce A | EVP - MONTANA RENEWABLES | Grant(A) | 8K | — | $0 |
| Feb 24, 2026 | Fleming Bruce A | EVP - MONTANA RENEWABLES | Grant(A) | 11K | — | $0 |
| Feb 24, 2026 | Boss John G. | Director | Grant(A) | 256 | — | $0 |
| Feb 24, 2026 | Boss John G. | Director | Grant(A) | 85 | — | $0 |
| Feb 24, 2026 | Obermeier Scott | EVP - SPECIALTIES | Grant(A) | 10K | — | $0 |
| Feb 24, 2026 | Obermeier Scott | EVP - SPECIALTIES | Grant(A) | 8K | — | $0 |
| Feb 24, 2026 | Borgmann Louis Todd | CHIEF EXECUTIVE OFFICER | Grant(A) | 64K | — | $0 |
| Feb 24, 2026 | Borgmann Louis Todd | CHIEF EXECUTIVE OFFICER | Grant(A) | 68K | — | $0 |
| Feb 24, 2026 | Lunin David | EVP - CFO | Grant(A) | 7K | — | $0 |
| Feb 24, 2026 | Lunin David | EVP - CFO | Grant(A) | 10K | — | $0 |
| Feb 24, 2026 | Morical Gregory J | SVP, GENERAL COUNSEL | Grant(A) | 6K | — | $0 |
| Feb 24, 2026 | Morical Gregory J | SVP, GENERAL COUNSEL | Grant(A) | 4K | — | $0 |
| Feb 24, 2026 | Krutz John Robert | Chief Accounting Officer | Grant(A) | 2K | — | $0 |
| Dec 17, 2025 | Fleming Bruce A | EVP - MONTANA RENEWABLES | Gift(G) | 50K | — | $0 |
| Dec 4, 2025 | Sajkowski Daniel J | Director | Sell(S) | 2K | — | $0 |
| Dec 4, 2025 | Sajkowski Daniel J | Director | Option exercise(M) | 5K | — | $0 |
| Dec 4, 2025 | Sajkowski Daniel J | Director | Option exercise(M) | 5K | — | $0 |
| Dec 4, 2025 | Raymond Paul C | Director | Option exercise(M) | 5K | — | $0 |
| Dec 4, 2025 | Raymond Paul C | Director | Option exercise(M) | 5K | — | $0 |
| Dec 4, 2025 | Straumins Jennifer | Director | Option exercise(M) | 5K | — | $0 |
| Dec 4, 2025 | Straumins Jennifer | Director | Option exercise(M) | 5K | — | $0 |
| Dec 4, 2025 | Twitchell Karen A. | Director | Option exercise(M) | 3K | — | $0 |
| Dec 4, 2025 | Twitchell Karen A. | Director | Option exercise(M) | 3K | — | $0 |
| Dec 4, 2025 | Schumacher Amy M | Director | Option exercise(M) | 5K | — | $0 |
| Dec 4, 2025 | Schumacher Amy M | Director | Option exercise(M) | 5K | — | $0 |
| Dec 4, 2025 | Boss John G. | Director | Option exercise(M) | 3K | — | $0 |
| Dec 4, 2025 | Boss John G. | Director | Sell(S) | 1K | — | $0 |
| Dec 4, 2025 | Boss John G. | Director | Option exercise(M) | 3K | — | $0 |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2021-01-04 → 2026-07-22. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).