Every Form 4 that Hyperion DeFi, Inc. (HYPD) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow HYPD and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full HYPD filings page.
HYPERION DEFI, INC. (HYPD) reported that officer and director Jung Hyunsu had 40,000 shares of common stock withheld on 2026-08-16 to satisfy tax withholding obligations arising from the vesting and settlement of previously granted restricted stock units. Following this tax-withholding disposition, Jung Hyunsu directly holds 1,345,676 shares of HYPD common stock.
Walters Happy David reported acquisition or exercise transactions in this Form 4 filing.
HYPERION DEFI, INC. director Walters Happy David received a grant of 58,917 restricted stock units of common stock. These units vest in full on the earlier of June 30, 2027 or the company’s 2027 annual stockholder meeting, with accelerated vesting upon a qualifying corporate transaction or involuntary departure from the Board.
Strahlman Ellen R reported acquisition or exercise transactions in this Form 4 filing.
HYPERION DEFI, INC. director Ellen R. Strahlman received a grant of 58,917 shares of common stock in the form of restricted stock units on June 30, 2026. The award vests fully on the earlier of June 30, 2027 or the company’s 2027 annual stockholder meeting, with accelerated vesting upon a qualifying corporate transaction or if her board service ends other than by her own decision to step down. Following this grant, she holds 150,078 shares directly.
JACOBSON RACHEL reported acquisition or exercise transactions in this Form 4 filing.
HYPERION DEFI, INC. director Rachel Jacobson received an equity award in the form of 58,917 shares of common stock as restricted stock units, with no cash paid per share. Following this grant, she directly owns 115,218 shares of the company’s common stock.
The restricted stock units fully vest on the earlier of June 30, 2027 or the date of the company’s 2027 annual stockholders’ meeting. They will also vest immediately if a qualifying corporate transaction occurs or if her board service ends for reasons other than her own decision to step down.
GELTZEILER MICHAEL S reported acquisition or exercise transactions in this Form 4 filing.
HYPERION DEFI, INC. director Michael S. Geltzeiler received a grant of 58,917 shares of common stock in the form of restricted stock units. These units vest in full on the earlier of June 30, 2027 or the company’s 2027 annual stockholder meeting, with accelerated vesting upon a qualifying corporate transaction or certain board service conclusions. Following this grant, he holds 146,932 shares directly.
HYPERION DEFI, INC. director and officer Jung Hyunsu reported open-market purchases of a total of 8,000 shares of Common Stock. The trades occurred on June 1–2, 2026 at prices between $3.64 and $3.81 per share. Following these transactions, Jung Hyunsu directly owns 1,385,676 shares of Hyperion DeFi common stock.
HYPERION DEFI, INC. director and officer Jung Hyunsu reported a routine tax-related share disposition. On May 27, 2026, 40,000 shares of common stock were withheld to cover tax obligations from the vesting and settlement of a previously granted restricted stock unit award. There was no open-market sale, and Hyunsu’s direct holdings after this withholding were 1,377,676 common shares.
HYPERION DEFI, INC. Chief Financial Officer David R. Knox reported a disposition of shares tied to equity compensation. On the reported date, 20,831 shares of common stock were withheld at a stated price of $0.00 per share to satisfy tax withholding obligations from the vesting and settlement of a previously reported restricted stock unit grant. After this tax-withholding disposition, he directly held 307,119 shares of common stock.
Hyperion Defi, Inc. reported an equity award to its General Counsel, Robert Rubenstein. On January 12, 2026, he was granted 75,000 units of common stock with a reported price of $0 per share, increasing his beneficial ownership to 75,000 common shares reported as directly held.
According to the footnote, these units are restricted stock units (RSUs). Of the total, 37,500 RSUs are scheduled to vest on January 12, 2027, and the remaining 37,500 RSUs vest in four equal installments of 9,375 RSUs beginning three months after January 12, 2027 and then every three months until fully vested, conditioned on his continued employment through each vesting date.
Hyperion DeFi, Inc. reported insider share purchases by a director. A Form 4 filing shows open-market buys of 18,742 shares of common stock on 12/18/2025 at a volume-weighted average price of $3.1389 per share and an additional 19,702 shares at a volume-weighted average price of $3.1385 per share. These prices reflect multiple trades executed between $3.04 and $3.22 per share. Following these transactions, the reporting person beneficially owns 75,448 shares directly and 95,150 shares indirectly through a spouse.
Insider reported receipt of restricted stock units totaling 300,000 shares of Hyperion DeFi, Inc. (HYPD). David R. Knox, identified as a director and the company's Chief Financial Officer, reported two grants dated 09/29/2025 that together increase his direct beneficial ownership to 300,000 shares.
The first grant covers 100,000 RSUs vesting in two equal tranches of 50,000 on 03/29/2026 and 09/29/2026, subject to continued employment. The second grant covers 200,000 RSUs that vest upon achieving market-cap milestones: 100,000 RSUs at $150 million and 100,000 RSUs at $500 million, each measured as the threshold met on ten trading days within a rolling 30-day period, subject to continued employment. All reported transactions have a $0 price.