As of September 29, 2026, the three largest insider holders of ASTC are Thomas Boone Iii Pickens (Ceo, 181.38K shares), Tom Wilkinson (Director, 30.92K shares), Thomas Wiley Wilkinson (Director, 23.86K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Thomas Boone Iii Pickens | Ceo | 181,385 | 0 | 181,385 | 50.1% | 16 May, 2025 |
| 2 | Tom Wilkinson | Director | 30,923 | 0 | 30,923 | 8.5% | 21 Jul, 2026 |
| 3 | Thomas Wiley Wilkinson | Director | 23,862 | 0 | 23,862 | 6.6% | 15 May, 2025 |
| 4 | Robert N Mcfarland | Director | 20,961 | 0 | 20,961 | 5.8% | 08 Sep, 2026 |
| 5 | Eric Stober | Cfo | 19,654 | 0 | 19,654 | 5.4% | 08 Sep, 2026 |
| 6 | James Frank Becker | Director | 16,121 | 0 | 16,121 | 4.5% | 29 May, 2024 |
| 7 | Daniel T Jr Russler | Director | 14,904 | 0 | 14,904 | 4.1% | 19 Mar, 2024 |
| 8 | Charles Arch Winn | Director | 13,100 | 0 | 13,100 | 3.6% | 08 Sep, 2026 |
| 9 | John William Halinski | Director | 12,211 | 0 | 12,211 | 3.4% | 08 Sep, 2026 |
| 10 | Braden Michael Leonard | TenPercentOwner | 0 | 8,638 | 8,638 | 2.4% | 02 Dec, 2022 |
| 11 | Jaime Hinojosa | Cfo | 7,881 | 0 | 7,881 | 2.2% | 24 May, 2024 |
| 12 | Jennifer Canas | Chief Financial Officer | 5,250 | 0 | 5,250 | 1.4% | 04 Jun, 2025 |
| 13 | Nihanth Badugu | Chief Operating Officer | 5,000 | 0 | 5,000 | 1.4% | 08 Sep, 2026 |
| 14 | Matthew Kreps | Director | 2,150 | 0 | 2,150 | 0.6% | 20 Jul, 2026 |
| 15 | Ronald W Cantwell | Director | 122 | 0 | 122 | 0.0% | 18 Apr, 2022 |
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 |
|---|---|---|---|---|---|---|---|---|
| 01 Sep, 2026 | Charles Arch Winn | Director | Acquired A | 2,150 | $0.00 | $0 | 13,100 | Direct |
| 09 Jul, 2026 | Robert N Mcfarland | Director | Acquired A | 1,055 | $0.00 | $0 | 20,961 | Direct |
| 16 Jul, 2026 | Eric Stober | Director | Acquired A | 2,150 | $0.00 | $0 | 19,654 | Direct |
| 16 Jul, 2026 | John William Halinski | Director | Acquired A | 2,150 | $0.00 | $0 | 12,211 | Direct |
| 22 Jul, 2026 | Nihanth Badugu | Chief Operating Officer | Acquired A | 5,000 | $0.00 | $0 | 5,000 | Direct |
| 22 Jul, 2026 | Nihanth Badugu | Chief Operating Officer | Acquired A | 5,000 | $0.00 | $0 | 5,000 | Direct |
| 09 Jul, 2026 | Eric Stober | Director | Acquired A | 1,167 | $0.00 | $0 | 19,654 | Direct |
| 09 Jul, 2026 | Charles Arch Winn | Director | Acquired A | 1,055 | $0.00 | $0 | 10,950 | Direct |
| 09 Jul, 2026 | John William Halinski | Director | Acquired A | 1,055 | $0.00 | $0 | 12,211 | Direct |
| 09 Jul, 2026 | Tom Wilkinson | Director | Acquired A | 1,055 | $0.00 | $0 | 30,923 | Direct |
| 09 Jul, 2026 | Robert N Mcfarland | Director | Acquired A | 1,055 | $0.00 | $0 | 11,205 | Direct |
| 16 Jul, 2026 | Eric Stober | Director | Acquired A | 2,150 | $0.00 | $0 | 18,487 | Direct |
| 16 Jul, 2026 | Matthew Kreps | Director | Acquired A | 2,150 | $0.00 | $0 | 2,150 | Direct |
| 16 Jul, 2026 | John William Halinski | Director | Acquired A | 2,150 | $0.00 | $0 | 11,156 | Direct |
| 14 Apr, 2026 | Tom Wilkinson | Director | Acquired A | 6,006 | $0.00 | $0 | 29,868 | Direct |
| 14 Apr, 2026 | Robert N Mcfarland | Director | Acquired A | 6,006 | $0.00 | $0 | 19,906 | Direct |
| 14 Apr, 2026 | Eric Stober | Director | Acquired A | 6,006 | $0.00 | $0 | 16,337 | Direct |
| 14 Apr, 2026 | Charles Arch Winn | Director | Acquired A | 6,006 | $0.00 | $0 | 9,895 | Direct |
| 14 May, 2025 | John William Halinski | Director | Acquired A | 6,006 | $0.00 | $0 | 9,006 | Direct |
| 03 Oct, 2025 | Braden Michael Leonard | TenPercentOwner | Disposed S | 220,410 | $7.13 | $1.57Mn | 0 | Indirect |