As of July 26, 2026, the three largest insider holders of GCTK are Drew Sycoff (Director, 2.95Mn shares), Andrew K Balo (Director, 4.49K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Drew Sycoff | - | 2,951,258 | 0 | 24 Apr, 2024 |
| Andrew K Balo | - | 4,490 | 0 | 28 Mar, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 26 Mar, 2025 | Andrew K Balo | Common Stock, par value $0.001 per share | A | 4,490 | $0.00 | 4,490 | D | A |
| 01 Jul, 2024 | Paul Goode | Warrants to Purchase Common Stock | A | 42,000 | - | 42,000 | D | P |
| 01 Jul, 2024 | Paul Goode | Warrants to Purchase Common Stock | A | 42,000 | - | 42,000 | D | P |
| 01 Jul, 2024 | Drew Sycoff | Warrants to Purchase Common Stock | A | 138,000 | - | 138,000 | D | P |
| 01 Jul, 2024 | Drew Sycoff | Warrants to Purchase Common Stock | A | 138,000 | - | 138,000 | D | P |
| 01 Jul, 2024 | Drew Sycoff | Warrants to Purchase Common Stock | A | 138,000 | - | 138,000 | D | P |
| 01 Jul, 2024 | Paul Goode | Warrants to Purchase Common Stock | A | 42,000 | - | 42,000 | D | P |
| 22 Apr, 2024 | Drew Sycoff | Common Stock | A | 182,540 | $1.26 | 2,951,258 | D | P |
| 22 Apr, 2024 | Drew Sycoff | Common Stock | A | 182,540 | $1.26 | 2,951,258 | D | P |
| 22 Apr, 2024 | Drew Sycoff | Common Stock | A | 182,540 | $1.26 | 2,951,258 | D | P |
| 26 Jun, 2017 | David Podwalski | Option (Right to Buy) | A | 290,585 | $0.00 | 290,585 | D | A |
| 26 Jun, 2017 | David Podwalski | Option (Right to Buy) | A | 290,585 | $0.00 | 290,585 | D | A |
| 26 Jun, 2017 | David Podwalski | Option (Right to Buy) | A | 290,585 | $0.00 | 290,585 | D | A |
| 01 Jun, 2017 | Leslie Seff | Restricted Stock Units | A | 22,727 | $0.00 | 22,727 | D | A |
| 01 Jun, 2017 | Leslie Seff | Restricted Stock Units | A | 22,727 | $0.00 | 22,727 | D | A |
| 01 Jun, 2017 | Revan Schwartz | Restricted Stock Units | A | 22,727 | $0.00 | 22,727 | D | A |
| 01 Jun, 2017 | Michael Hauck | Option (Right to Buy) | A | 14,894 | $0.00 | 14,894 | D | A |
| 01 Jun, 2017 | Leslie Seff | Restricted Stock Units | A | 22,727 | $0.00 | 22,727 | D | A |
| 01 Jun, 2017 | Revan Schwartz | Restricted Stock Units | A | 22,727 | $0.00 | 22,727 | D | A |
| 01 Jun, 2017 | Robert Fischell | Restricted Stock Units | A | 22,727 | $0.00 | 22,727 | D | A |