As of September 29, 2026, the three largest insider holders of GNPX are Catherine M Vaczy (Evp Gc Chief Strategy Officer, 44.28K shares), Hermant Kumar (Chief Mfgr Tech Officer, 33.42K shares), John Rodney Varner (Chairman, President And Ceo, 3.48K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Catherine M Vaczy | Evp Gc Chief Strategy Officer | 44,283 | 0 | 44,283 | 56.9% | 24 Apr, 2023 |
| 2 | Hermant Kumar | Chief Mfgr Tech Officer | 33,421 | 0 | 33,421 | 43.0% | 22 Feb, 2023 |
| 3 | John Rodney Varner | Chairman, President And Ceo | 88 | 0 | 88 | 0.1% | 21 Feb, 2024 |
| 4 | Ryan M. Confer | President, Ceo And Cfo | 6 | 0 | 6 | 0.0% | 27 Feb, 2026 |
| 5 | Mark Stanley Berger | Chief Medical Officer | 3 | 0 | 3 | 0.0% | 27 Feb, 2026 |
| 6 | Toscano Jose Antonio Moreno | Director | 1 | 0 | 1 | 0.0% | 23 Dec, 2025 |
| 7 | William R Jr. Wilson | Director | 1 | 0 | 1 | 0.0% | 23 Dec, 2025 |
| 8 | Brent M Longnecker | Director | 1 | 0 | 1 | 0.0% | 15 Apr, 2026 |
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 |
|---|---|---|---|---|---|---|---|---|
| 14 Apr, 2026 | Brent M Longnecker | Director | Disposed S | 8 | $8,096.71 | $64.77K | 1 | Direct |
| 14 Apr, 2026 | Brent M Longnecker | Director | Disposed S | 10 | $8,096.71 | $80.97K | 0 | Indirect |
| 27 Feb, 2026 | Ryan M. Confer | President, Ceo And Cfo | Disposed F | 9,330 | $13,165.38 | $122.83Mn | 6 | Direct |
| 27 Feb, 2026 | Mark Stanley Berger | Chief Medical Officer | Disposed F | 7,168 | $13,165.38 | $94.37Mn | 3 | Direct |
| 22 Dec, 2025 | Brent M Longnecker | Director | Acquired A | 9,000 | $0.00 | $0 | 1 | Direct |
| 22 Dec, 2025 | Toscano Jose Antonio Moreno | Director | Acquired A | 9,000 | $0.00 | $0 | 1 | Direct |
| 22 Dec, 2025 | Mark Stanley Berger | Chief Medical Officer | Acquired A | 28,500 | $0.00 | $0 | 4 | Direct |
| 22 Dec, 2025 | William R Jr. Wilson | Director | Acquired A | 9,000 | $0.00 | $0 | 1 | Direct |
| 22 Dec, 2025 | Ryan M. Confer | President, Ceo And Cfo | Acquired A | 45,000 | $0.00 | $0 | 7 | Direct |
| 30 Jun, 2025 | Mark Stanley Berger | Chief Medical Officer | Disposed F | 4,500 | $68.19 | $306.86K | 60 | Direct |
| 30 Jun, 2025 | Ryan M. Confer | President, Ceo And Cfo | Disposed F | 5,775 | $68.19 | $393.80K | 110 | Direct |
| 18 Feb, 2025 | Mark Stanley Berger | Chief Medical Officer | Disposed F | 585 | $122.68 | $71.77K | 75 | Direct |
| 18 Feb, 2025 | Ryan M. Confer | President, Ceo And Cfo | Disposed F | 395 | $122.68 | $48.46K | 129 | Direct |
| 05 Dec, 2024 | Toscano Jose Antonio Moreno | Director | Acquired A | 4,750 | $0.00 | $0 | 26 | Direct |
| 05 Dec, 2024 | William R Jr. Wilson | Director | Acquired A | 4,750 | $0.00 | $0 | 26 | Direct |
| 05 Dec, 2024 | Ryan M. Confer | President, Ceo And Cfo | Acquired A | 29,375 | $0.00 | $0 | 131 | Direct |
| 05 Dec, 2024 | Mark Stanley Berger | Chief Medical Officer | Acquired A | 18,250 | $0.00 | $0 | 77 | Direct |
| 05 Dec, 2024 | Brent M Longnecker | Director | Acquired A | 4,750 | $0.00 | $0 | 27 | Direct |
| 18 Feb, 2024 | Mark Stanley Berger | Chief Medical Officer | Disposed F | 1,319 | $1,316.54 | $1.74Mn | 16 | Direct |
| 18 Feb, 2024 | John Rodney Varner | Chairman, President And Ceo | Disposed F | 2,642 | $1,316.54 | $3.48Mn | 88 | Direct |