SEC Form 4 · Updated Daily
BSIN
— BIG SKY INDUSTRIAL INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| John Alfred Weinzierl 2020 Trust u/a November 10, 2020 | 10%+ Owner | 4,033,893 | 2026-04-29 | J |
| Katla Energy Holdings LLC | 10%+ Owner | 4,033,893 | 2026-04-29 | J |
| Weinzierl John A | 10%+ Owner · Director | 4,033,893 | 2026-04-29 | J |
| Marsh Wallis T | 10%+ Owner | 3,124,893 | 2022-10-10 | P |
| WDM Family Partnership, LP | 10%+ Owner | 3,071,914 | 2022-07-19 | — |
| Batchelor Joshua Lane | 10%+ Owner | 2,900,642 | 2026-03-02 | S |
| Sage Road Capital, LLC | 10%+ Owner | 2,900,642 | 2026-03-02 | S |
| Banner Oil & Gas, LLC | 10%+ Owner | 2,900,642 | 2026-03-02 | S |
| Woodford Petroleum, LLC | Reporting Owner | 2,900,642 | 2026-03-02 | S |
| Stamets Benjamin Andrew | 10%+ Owner | 2,900,642 | 2026-03-02 | S |
| Sage Road Energy II, LP | Reporting Owner | 2,900,642 | 2026-03-02 | S |
| SRC Management Company, LP | Reporting Owner | 2,900,642 | 2026-03-02 | S |
| King Duane H | 10%+ Owner · Director | 2,359,728 | 2025-10-28 | J |
| King Oil & Gas Company, Inc. | Reporting Owner | 2,359,728 | 2025-10-28 | J |
| Synergy Offshore LLC | 10%+ Owner | 2,359,728 | 2025-10-28 | J |
| Hart Mark L III | 10%+ Owner | 2,258,294 | 2008-11-10 | — |
| Corriente Advisors, LLC | 10%+ Owner | 2,258,294 | 2008-11-10 | — |
| Hightower Lee | Reporting Owner | 2,027,399 | 2022-07-20 | J |
| Smith Ryan Lewis | Director · Officer | 1,118,769 | 2026-03-31 | P |
| LARSEN JOHN L | Director | 656,541 | 2006-08-10 | J |
| LORIMER R SCOTT | Director | 621,074 | 2014-03-24 | M |
| Veltri David | Director · Officer | 349,998 | 2018-03-23 | A |
| LARSEN MARK J | Reporting Owner | 291,200 | 2015-01-29 | J |
| LARSEN KEITH G | Director · Officer | 277,619 | 2015-01-29 | J |
| Zajac Mark L. | Officer | 277,593 | 2026-03-19 | F |
| SVILAR DANIEL P | Officer | 257,713 | 2007-01-03 | J |
| Kessel Donald Aloysius | Officer | 226,145 | 2023-01-27 | F |
| HERRON HAROLD F | Director · Officer | 209,894 | 2008-01-04 | J |
| Slack Stephen | Director | 208,913 | 2025-02-14 | A |
| DENNY JAMES W III | Director | 203,913 | 2025-02-14 | A |
| Keys Randall D | Director | 193,913 | 2025-06-17 | S |
| YOUNGBAUER STEVEN R | Officer | 191,574 | 2014-06-26 | M |
| Llano Energy LLC | Reporting Owner | 108,913 | 2024-03-19 | A |
| MOWRY BRYON G | Officer | 84,841 | 2015-01-29 | A |
| RICHMOND STEVEN DANIEL | Officer | 80,817 | 2015-01-29 | A |
| Conrad Stephen Volney | Director | 68,500 | 2016-09-23 | A |
| Danni Jerry W | Director | 60,166 | 2016-09-23 | A |
| FRASER JAMES B | Director | 59,333 | 2016-09-23 | A |
| BANDY THOMAS R | Director | 59,055 | 2016-09-23 | A |
| HEATH LEO A | Director | 58,833 | 2016-09-23 | A |
| ANDERSON DON C | Director | 42,587 | 2007-03-27 | J |
| FRASER H RUSSELL | Director | 31,363 | 2011-02-14 | M |
| Pico Javier F | Reporting Owner | 18,000 | 2021-02-22 | A |
| ANDERSON MICHAEL THOMAS | Director | 8,087 | 2007-11-26 | J |
| FEINSTEIN MICHAEL H | Director | 6,158 | 2007-11-26 | J |
| WINTERS ALLEN SWAIN | Director | 4,900 | 2011-06-29 | P |
| Lubbock Energy Partners LLC | 10%+ Owner | 0 | 2022-07-19 | J |
| Haarman Paul W. | Reporting Owner | 0 | 2021-01-19 | J |
| APEG Energy II, LP | Reporting Owner | 0 | 2021-01-19 | J |
| Angelus Capital, LLC | Reporting Owner | 0 | 2021-01-19 | J |
| Angelus Private Equity Group, LLC | Reporting Owner | 0 | 2021-01-19 | J |
| Duke Patrick E. | Director | 0 | 2021-01-19 | J |
| Duke Capital Services, LLC | Reporting Owner | 0 | 2021-01-19 | J |
| APEG Energy II GP, LLC | Reporting Owner | 0 | 2021-01-19 | J |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-04-29 | Katla Energy Holdings LLC | J | 909,000 | $1.10 | 909,000 |
| 2026-04-29 | Katla Energy Holdings LLC | J | 909,000 | $1.10 | 4,033,893 |
| 2026-04-29 | Katla Energy Holdings LLC | J | 1,818,000 | $1.10 | 3,832,326 |
| 2026-04-29 | John Alfred Weinzierl 2020 Trust u/a November 10, 2020 | J | 909,000 | $1.10 | 909,000 |
| 2026-04-29 | John Alfred Weinzierl 2020 Trust u/a November 10, 2020 | J | 909,000 | $1.10 | 4,033,893 |
| 2026-04-29 | John Alfred Weinzierl 2020 Trust u/a November 10, 2020 | J | 1,818,000 | $1.10 | 3,832,326 |
| 2026-04-29 | Weinzierl John A | J | 909,000 | $1.10 | 909,000 |
| 2026-04-29 | Weinzierl John A | J | 909,000 | $1.10 | 4,033,893 |
| 2026-04-29 | Weinzierl John A | J | 1,818,000 | $1.10 | 3,832,326 |
| 2026-03-31 | Smith Ryan Lewis | Open-market buy | 15,000 | $0.87 | 1,118,769 |
| 2026-03-19 | Smith Ryan Lewis | Tax withholding | 19,177 | $1.02 | 1,103,769 |
| 2026-03-19 | Zajac Mark L. | Tax withholding | 21,853 | $1.02 | 277,593 |
| 2026-03-04 | DENNY JAMES W III | Grant / award (derivative) | 230,000 | $0.00 | 230,000 |
| 2026-03-04 | Keys Randall D | Grant / award (derivative) | 230,000 | $0.00 | 230,000 |
| 2026-03-04 | Slack Stephen | Grant / award (derivative) | 230,000 | $0.00 | 230,000 |
| 2026-03-04 | Smith Ryan Lewis | Grant / award (derivative) | 1,500,000 | $0.00 | 1,500,000 |
| 2026-03-04 | Katla Energy Holdings LLC | Grant / award (derivative) | 460,000 | $0.00 | 460,000 |
| 2026-03-04 | John Alfred Weinzierl 2020 Trust u/a November 10, 2020 | Grant / award (derivative) | 460,000 | $0.00 | 460,000 |
| 2026-03-04 | Weinzierl John A | Grant / award (derivative) | 460,000 | $0.00 | 460,000 |
| 2026-03-04 | Zajac Mark L. | Grant / award (derivative) | 375,000 | $0.00 | 375,000 |
| 2026-03-04 | King Oil & Gas Company, Inc. | Grant / award (derivative) | 230,000 | $0.00 | 230,000 |
| 2026-03-04 | King Duane H | Grant / award (derivative) | 230,000 | $0.00 | 230,000 |
| 2026-03-03 | SRC Management Company, LP | Open-market sale | 24,365 | $1.37 | 298,178 |
| 2026-03-03 | SRC Management Company, LP | Open-market sale | 16,441 | $1.37 | 202,004 |
| 2026-03-03 | SRC Management Company, LP | Open-market sale | 218,000 | $1.37 | 2,682,642 |
| 2026-03-03 | SRC Management Company, LP | Open-market sale | 6,364 | $1.37 | 78,299 |
| 2026-03-03 | Sage Road Energy II, LP | Open-market sale | 24,365 | $1.37 | 298,178 |
| 2026-03-03 | Sage Road Energy II, LP | Open-market sale | 16,441 | $1.37 | 202,004 |
| 2026-03-03 | Sage Road Energy II, LP | Open-market sale | 218,000 | $1.37 | 2,682,642 |
| 2026-03-03 | Sage Road Energy II, LP | Open-market sale | 6,364 | $1.37 | 78,299 |
| 2026-03-03 | Stamets Benjamin Andrew | Open-market sale | 24,365 | $1.37 | 298,178 |
| 2026-03-03 | Stamets Benjamin Andrew | Open-market sale | 16,441 | $1.37 | 202,004 |
| 2026-03-03 | Stamets Benjamin Andrew | Open-market sale | 218,000 | $1.37 | 2,682,642 |
| 2026-03-03 | Stamets Benjamin Andrew | Open-market sale | 6,364 | $1.37 | 78,299 |
| 2026-03-03 | Woodford Petroleum, LLC | Open-market sale | 24,365 | $1.37 | 298,178 |
| 2026-03-03 | Woodford Petroleum, LLC | Open-market sale | 16,441 | $1.37 | 202,004 |
| 2026-03-03 | Woodford Petroleum, LLC | Open-market sale | 218,000 | $1.37 | 2,682,642 |
| 2026-03-03 | Woodford Petroleum, LLC | Open-market sale | 6,364 | $1.37 | 78,299 |
| 2026-03-03 | Banner Oil & Gas, LLC | Open-market sale | 24,365 | $1.37 | 298,178 |
| 2026-03-03 | Banner Oil & Gas, LLC | Open-market sale | 16,441 | $1.37 | 202,004 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.