HYPD (Hyperion DeFi, Inc. Common Stock)
Insider Trading Activity
Every open-market purchase and sale reported by HYPD officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-18 | Hyunsu Jung | See Remarks | F | — | — |
| 2026-07-01 | MICHAEL S GELTZEILER | Director | A | — | — |
| 2026-07-01 | Happy David Walters | Director | A | — | — |
| 2026-07-01 | Ellen R Strahlman | Director | A | — | — |
| 2026-07-01 | RACHEL JACOBSON | Director | A | — | — |
| 2026-06-02 | Hyunsu Jung | See Remarks | Buy | — | — |
| 2026-05-28 | Hyunsu Jung | See Remarks | F | — | — |
| 2026-04-01 | David R. Knox | Chief Financial Officer | F | — | — |
| 2026-01-12 | Robert Rubenstein | General Counsel | A | — | — |
| 2026-01-05 | David R. Knox | Chief Financial Officer | Buy | — | — |
| 2025-12-30 | Hyunsu Jung | See Remarks | F | — | — |
| 2025-12-30 | Ellen R Strahlman | Director | Buy | — | — |
| 2025-12-22 | Ellen R Strahlman | Director | Buy | — | — |
| 2025-12-19 | MICHAEL S GELTZEILER | Director | Buy | — | — |
| 2025-12-19 | Happy David Walters | Director | Buy | — | — |
| 2025-10-01 | David R. Knox | Chief Financial Officer | A | — | — |
| 2025-09-09 | Happy David Walters | Director | A | — | — |
| 2025-08-20 | MICHAEL S GELTZEILER | Director | A | — | — |
| 2025-08-20 | Ellen R Strahlman | Director | A | — | — |
| 2025-08-20 | RACHEL JACOBSON | Director | A | — | — |
| 2025-08-20 | Hyunsu Jung | Chief Investment Officer | A | — | — |
| 2025-07-09 | MICHAEL S GELTZEILER | Director | A | — | — |
| 2025-07-09 | Michael M Rowe | Chief Executive Officer | A | — | — |
| 2025-07-09 | Ellen R Strahlman | Director | A | — | — |
| 2025-07-09 | RACHEL JACOBSON | Director | A | — | — |
| 2025-07-09 | Hyunsu Jung | Chief Investment Officer | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | See Remarks | 1,345,676 | — |
| — | Chief Financial Officer | 307,119 | — |
| — | Director | 173,091 | — |
| — | Director | 170,847 | — |
| — | Director | 146,932 | — |
| — | Director | 115,218 | — |
| — | General Counsel | 75,000 | — |
| — | Chief Executive Officer | 7,975 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the HYPD quote page; the site-wide leaderboard is on the insider transactions hub.