Hyperion Defi's top three insider shareholders as of September 09, 2026 are Stuart M. Grant (TenPercentOwner, 10.91Mn shares), Stuart M. Grant (TenPercentOwner, 5.27Mn shares), Stuart M. Grant (TenPercentOwner, 4.52Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Stuart M. Grant | TenPercentOwner | 25,097,523 | 0 | 25,097,523 | 90.7% | 03 Jul, 2024 |
| 2 | Hyunsu Jung | Chief Investment Officer | 1,345,676 | 0 | 1,345,676 | 4.9% | 18 Aug, 2026 |
| 3 | David R. Knox | Chief Financial Officer | 307,119 | 0 | 307,119 | 1.1% | 01 Apr, 2026 |
| 4 | Michael S Geltzeiler | Director | 204,947 | 0 | 204,947 | 0.7% | 01 Jul, 2026 |
| 5 | Happy David Walters | Director | 170,847 | 0 | 170,847 | 0.6% | 01 Jul, 2026 |
| 6 | Ellen R Strahlman | Director | 150,078 | 0 | 150,078 | 0.5% | 01 Jul, 2026 |
| 7 | Rachel Jacobson | Director | 115,218 | 0 | 115,218 | 0.4% | 01 Jul, 2026 |
| 8 | Robert Rubenstein | General Counsel | 75,000 | 0 | 75,000 | 0.3% | 12 Jan, 2026 |
| 9 | Kenneth B Jr Lee | Director | 64,544 | 0 | 64,544 | 0.2% | 21 Jun, 2022 |
| 10 | Bren Kern | Chief Operating Officer | 52,531 | 0 | 52,531 | 0.2% | 23 Apr, 2025 |
| 11 | Michael M Rowe | Chief Executive Officer | 40,902 | 0 | 40,902 | 0.1% | 09 Jul, 2025 |
| 12 | Ram Palanki | Director | 24,422 | 0 | 24,422 | 0.1% | 29 Apr, 2025 |
| 13 | Fredric N Eshelman | Director | 16,247 | 0 | 16,247 | 0.1% | 22 Nov, 2021 |
| 14 | Tsontcho Ianchulev | Chief Executive Officer | 10,122 | 0 | 10,122 | 0.0% | 29 Apr, 2025 |
| 15 | Curt H Labelle | Director | 528 | 0 | 528 | 0.0% | 22 Nov, 2021 |
| 16 | Anthony Y Sun | Director | 329 | 0 | 329 | 0.0% | 22 Nov, 2021 |
| 17 | Stephen Keith Benjamin | Director | 319 | 0 | 319 | 0.0% | 21 Jun, 2022 |
| 18 | John P Gandolfo | Chief Financial Officer | 100 | 0 | 100 | 0.0% | 31 May, 2023 |
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 |
|---|---|---|---|---|---|---|---|---|
| 16 Aug, 2026 | Hyunsu Jung | Director, Officer | Disposed F | 40,000 | $0.00 | $0 | 1,345,676 | Direct |
| 30 Jun, 2026 | Rachel Jacobson | Director | Acquired A | 58,917 | $0.00 | $0 | 115,218 | Direct |
| 30 Jun, 2026 | Michael S Geltzeiler | Director | Acquired A | 58,917 | $0.00 | $0 | 146,932 | Direct |
| 30 Jun, 2026 | Ellen R Strahlman | Director | Acquired A | 58,917 | $0.00 | $0 | 150,078 | Direct |
| 30 Jun, 2026 | Happy David Walters | Director | Acquired A | 58,917 | $0.00 | $0 | 170,847 | Direct |
| 01 Jun, 2026 | Hyunsu Jung | Director, Officer | Acquired P | 5,000 | $3.66 | $18.30K | 1,382,676 | Direct |
| 01 Jun, 2026 | Hyunsu Jung | Director, Officer | Acquired P | 2,000 | $3.81 | $7.62K | 1,384,676 | Direct |
| 02 Jun, 2026 | Hyunsu Jung | Director, Officer | Acquired P | 500 | $3.64 | $1.82K | 1,385,176 | Direct |
| 02 Jun, 2026 | Hyunsu Jung | Director, Officer | Acquired P | 500 | $3.68 | $1.84K | 1,385,676 | Direct |
| 27 May, 2026 | Hyunsu Jung | Director, Officer | Disposed F | 40,000 | $0.00 | $0 | 1,377,676 | Direct |
| 30 Mar, 2026 | David R. Knox | Chief Financial Officer | Disposed F | 20,831 | $0.00 | $0 | 307,119 | Direct |
| 30 Mar, 2026 | David R. Knox | Chief Financial Officer | Disposed F | 20,831 | $0.00 | $0 | 307,119 | Direct |
| 30 Mar, 2026 | David R. Knox | Chief Financial Officer | Disposed F | 20,831 | $0.00 | $0 | 307,119 | Direct |
| 30 Mar, 2026 | David R. Knox | Chief Financial Officer | Disposed F | 20,831 | $0.00 | $0 | 307,119 | Direct |
| 12 Jan, 2026 | Robert Rubenstein | General Counsel | Acquired A | 75,000 | $0.00 | $0 | 75,000 | Direct |
| 12 Jan, 2026 | Robert Rubenstein | General Counsel | Acquired A | 75,000 | $0.00 | $0 | 75,000 | Direct |
| 12 Jan, 2026 | Robert Rubenstein | General Counsel | Acquired A | 75,000 | $0.00 | $0 | 75,000 | Direct |
| 12 Jan, 2026 | Robert Rubenstein | General Counsel | Acquired A | 75,000 | $0.00 | $0 | 75,000 | Direct |
| 31 Dec, 2025 | David R. Knox | Chief Financial Officer | Acquired P | 27,950 | $3.59 | $100.34K | 327,950 | Direct |
| 31 Dec, 2025 | David R. Knox | Chief Financial Officer | Acquired P | 27,950 | $3.59 | $100.34K | 327,950 | Direct |