Welcome to our dedicated page for Mentor Capital SEC filings (Ticker: MNTR), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Mentor Capital, Inc. filings document its OTCQB common stock registration and public-company reporting matters. Recent 8-K disclosures cover changes in the company's independent registered public accounting firms, including board and audit committee approvals, auditor letters, and statements regarding disagreements or reportable events under Regulation S-K.
The filing record also includes Form 12b-25 notices related to annual-report timing, with disclosures about the Form 10-K reporting period and the company's explanation for delayed completion. These filings center on reporting status, governance procedures, auditor relationships, and the Section 12(g) common stock identified under the MNTR trading symbol.
Mentor Capital (MNTR) filed a Form 4 showing CEO, director, and 10% owner Chester Billingsley bought common stock in three open‑market transactions. He purchased 3,150 shares at $0.1049 on 10/15/2025, 16,850 shares at $0.1005 on 10/16/2025, and 17,000 shares at $0.1098 on 10/17/2025. Following these trades, he directly owned 3,068,296 shares.
He also holds Series D Warrants exercisable at $0.02, covering 47,274 shares of common stock, with an expiration date of 05/11/2038.
Mentor Capital (MNTR) CEO, Director, and 10% Owner Chester Billingsley reported open‑market stock purchases. He bought 4,976 shares on 10/09/2025, 11,000 on 10/10/2025, 14,000 on 10/13/2025, and 5,000 on 10/14/2025 at prices between $0.1199 and $0.135. Following these transactions, he beneficially owns 3,031,296 shares, held directly.
The filing also lists Series D Warrants with an exercise price of $0.02, expiring 05/11/2038, covering 47,274 underlying common shares.
Mentor Capital director and 10% owner Chester Billingsley reported purchases of common stock across 10/07/2025–10/09/2025, acquiring 9,355, 20,000 and 24 shares at prices of $0.954, $0.999 and $0.10 respectively. Following these purchases his direct beneficial ownership is 2,996,320 shares. He also holds 47,274 Series D warrants exercisable into common stock through 05/11/2038.
Mentor Capital (MNTR) CEO, director and 10% owner Chester Billingsley reported buying 15,645 common shares on 10/01/2025 at $0.0976. Following the trade, he directly beneficially owns 2,966,941 shares.
He also reports 47,274 Series D warrants with a $0.02 exercise price, currently exercisable and expiring 05/11/2038.
Insider transactions reported for Mentor Capital, Inc. (MNTR). Chester Billingsley, CEO, director and >10% owner, purchased common stock in three open-market transactions on 09/26/2025, 09/29/2025 and 09/30/2025, acquiring 12,000, 13,000 and 12,000 shares respectively at prices of $0.089, $0.089 and $0.0995. Following these purchases his beneficial ownership increased to 2,951,296 shares. He also holds 47,274 common shares underlying Series D warrants exercisable through 05/11/2038.
Chester Billingsley, Mentor Capital, Inc. CEO and director, reported two open-market purchases: 12,000 common shares at $0.089 on 09/24/2025 and 13,000 common shares at $0.0884 on 09/25/2025, bringing his reported direct beneficial ownership to 2,914,296 shares. He also holds 47,274 Series D warrants exercisable at $0.02, expiring 05/11/2038. Transactions are reported on Form 4 and reflect direct ownership.
Chester Billingsley, CEO, director and 10% owner of Mentor Capital, Inc. (MNTR), reported multiple purchases of common stock in September 2025. He acquired 17,000 shares at $0.088 on 09/19/2025, 5,000 shares at $0.0838 on 09/19/2025, 25,000 shares at $0.0885 on 09/22/2025, and 25,000 shares at $0.0889 on 09/23/2025, bringing his total common stock holdings to 2,889,296 shares. He also holds 47,274 Series D warrants exercisable into common stock, with an exercise price of $0.02 and expiration 05/11/2038.
Chester Billingsley, CEO, director and 10% owner of Mentor Capital, Inc. (MNTR), reported multiple purchases of common stock in September 2025. He acquired 17,000 shares at $0.088 on 09/19/2025, 5,000 shares at $0.0838 on 09/19/2025, 25,000 shares at $0.0885 on 09/22/2025, and 25,000 shares at $0.0889 on 09/23/2025, bringing his total common stock holdings to 2,889,296 shares. He also holds 47,274 Series D warrants exercisable into common stock, with an exercise price of $0.02 and expiration 05/11/2038.
Mentor Capital director and CEO Chester Billingsley reported three small open-market purchases of MNTR common stock on 09/15/2025–09/17/2025, acquiring a total of 41,700 shares at prices between $0.084 and $0.0858 per share. After these transactions his direct beneficial ownership increased to 2,817,296 shares. He also continues to hold 47,274 Series D warrants exercisable into common stock through 05/11/2038.
Mentor Capital director and CEO Chester Billingsley reported three small open-market purchases of MNTR common stock on 09/15/2025–09/17/2025, acquiring a total of 41,700 shares at prices between $0.084 and $0.0858 per share. After these transactions his direct beneficial ownership increased to 2,817,296 shares. He also continues to hold 47,274 Series D warrants exercisable into common stock through 05/11/2038.
Mentor Capital, Inc. director and CEO Chester Billingsley reported purchases of 17,500 shares on 09/11/2025 at $0.0797 per share and 9,300 shares on 09/12/2025 at $0.0798, bringing his direct common stock holdings to 2,775,596 shares. He also reports direct ownership of 47,274 Series D warrants exercisable into common stock at $0.02 through 05/11/2038. The Form 4 is signed 09/12/2025.