As of May 30, 2026, the three largest insider holders of GEVO are Patrick R. Gruber (Chief Executive Officer, 3.85Mn shares), Christopher Michael Ryan (President Coo, 1.40Mn shares), L Lynn Smull (Evp, 1.10Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| William H Baum | - | 218,679 | 0 | 25 Aug, 2023 |
| Carolyn Romero | Chief Accounting Officer | 325,168 | 0 | 24 Aug, 2021 |
| Ruth Dreessen | - | 245,532 | 0 | 07 Jun, 2022 |
| Patrick R. Gruber | Chief Executive Officer | 3,845,462 | 0 | 05 Sep, 2025 |
| Christopher Michael Ryan | President Coo | 1,402,141 | 0 | 01 Apr, 2026 |
| Gary W. Mize | - | 281,226 | 0 | 12 Mar, 2026 |
| Geoffrey Thomas Jr. Williams | Vp General Counsel Secretary | 455,530 | 0 | 04 Aug, 2023 |
| Carol Jane Battershell | - | 278,265 | 0 | 14 Nov, 2025 |
| Timothy J Cesarek | Chief Commercial Officer | 946,304 | 0 | 25 Aug, 2023 |
| L Lynn Smull | Evp | 1,102,131 | 0 | 06 Aug, 2025 |
| Paul D Bloom | Chief Business Officer | 923,591 | 0 | 18 Sep, 2025 |
| Kimberly T Bowron | Chief People And It Officer | 481,226 | 0 | 05 Sep, 2025 |
| Jaime Guillen | - | 194,046 | 0 | 25 May, 2023 |
| Alisher K Nurmat | Vp And Treasurer | 192,476 | 0 | 07 Aug, 2024 |
| Angelo Amorelli | - | 2,942 | 0 | 15 Oct, 2025 |
| Andrew Shafer | Chief Cust Mkt Brnd Officer | 270,823 | 0 | 02 Apr, 2026 |
| Davaajargal Gendenjamts | Vp Acctg And Treasurer | 60,217 | 0 | 05 Dec, 2025 |
| Lindsay Clinton Fitzgerald | Chief Public Affairs Officer | 212,199 | 0 | 12 Mar, 2026 |
| Oluwagbemileke Yusuf Agiri | Cfo | 281,224 | 0 | 05 Jan, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 01 Apr, 2026 | Andrew Shafer | Common Stock | A | 5,550 | $0.71 | 276,373 | D | M |
| 01 Apr, 2026 | Andrew Shafer | Common Stock | A | 5,550 | $0.71 | 276,373 | D | M |
| 01 Apr, 2026 | Andrew Shafer | Common Stock | D | 5,550 | $2.71 | 270,823 | D | S |
| 01 Apr, 2026 | Andrew Shafer | Common Stock | D | 5,550 | $2.71 | 270,823 | D | S |
| 01 Apr, 2026 | Andrew Shafer | Stock Option | D | 5,550 | $0.00 | 191,400 | D | M |
| 01 Apr, 2026 | Andrew Shafer | Stock Option | D | 5,550 | $0.00 | 191,400 | D | M |
| 30 Mar, 2026 | Christopher Michael Ryan | Common Stock | D | 100,000 | $2.76 | 1,431,938 | D | S |
| 30 Mar, 2026 | Christopher Michael Ryan | Common Stock | D | 100,000 | $2.76 | 1,431,938 | D | S |
| 31 Mar, 2026 | Christopher Michael Ryan | Common Stock | D | 29,797 | $2.96 | 1,402,141 | D | S |
| 31 Mar, 2026 | Christopher Michael Ryan | Common Stock | D | 29,797 | $2.96 | 1,402,141 | D | S |
| 12 Mar, 2026 | Gary W. Mize | Common Stock | D | 107,100 | $2.34 | 281,226 | D | S |
| 10 Mar, 2026 | Andrew Shafer | Common Stock | A | 5,550 | $0.71 | 276,373 | D | M |
| 12 Mar, 2026 | Lindsay Clinton Fitzgerald | Common Stock | D | 20,000 | $2.51 | 212,199 | D | S |
| 10 Mar, 2026 | Andrew Shafer | Common Stock | A | 5,550 | $0.71 | 276,373 | D | M |
| 12 Mar, 2026 | Gary W. Mize | Common Stock | D | 107,100 | $2.34 | 281,226 | D | S |
| 10 Mar, 2026 | Andrew Shafer | Common Stock | D | 5,550 | $2.21 | 270,823 | D | S |
| 10 Mar, 2026 | Andrew Shafer | Common Stock | D | 5,550 | $2.21 | 270,823 | D | S |
| 10 Mar, 2026 | Andrew Shafer | Stock Option | A | 5,550 | $0.00 | 196,950 | D | M |
| 10 Mar, 2026 | Andrew Shafer | Stock Option | A | 5,550 | $0.00 | 196,950 | D | M |
| 20 Jan, 2026 | Andrew Shafer | Common Stock | D | 5,000 | $1.99 | 270,823 | D | S |