HYPDNasdaqFinance ServicesFiscal year ends December 31
HYPERION DEFI, INC.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 13, 2026
$2.86+0.02 (+0.70%)
Close on Oct 19, 2026
- Market cap
- $48.74M
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
16.2%
3M of 16M shares
Institutional holders
33
10 new, 6 sold out
Net institutional buying
1M
In Q2 2026
Insider trades, 12 months
13 buys · 0 sales
Net bought $641.05K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Armistice Capital, LLC | 8,600,000 | 9.95% | 13G (passive) amendment | Sep 30, 2024 |
| Hyunsu Jung | 500,000 | 9.30% | 13D (active) | Jun 17, 2025 |
| Avenue Capital Management II, L.P. | 354,291 | 6.20% | 13D (active) amendment | Sep 12, 2025 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of HYPD | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Vanguard Capital Management LLC | 466,798 | 3.00% | $1.47M | +382,389 | 0.00% |
| Franklin Resources Inc | 395,939 | 2.55% | $1.24M | New | 0.00% |
| Arrington Capital Management, LLC | 297,777 | 1.92% | $935.02K | New | 0.57% |
| Morgan Stanley | 237,986 | 1.53% | $747.28K | – | 0.00% |
| Almanack Investment Partners, LLC. | 169,013 | 1.09% | $530.70K | New | 0.07% |
| Geode Capital Management, LLC | 130,707 | 0.84% | $410.47K | +53,627 | 0.00% |
| Jane Street Group, LLC | 127,491 | 0.82% | $400.32K | −789 | 0.00% |
| Oppenheimer & Co Inc | 126,365 | 0.81% | $396.79K | +62,097 | 0.00% |
| BlackRock, Inc. | 114,400 | 0.74% | $359.22K | +33,292 | 0.00% |
| Goldman Sachs Group Inc | 91,390 | 0.59% | $286.97K | New | 0.00% |
| Vanguard Fiduciary Trust Co | 74,455 | 0.48% | $233.79K | +46,307 | 0.00% |
| Citadel Advisors LLC | 56,299 | 0.36% | $176.78K | −56,607 | 0.00% |
| State Street Corp | 54,357 | 0.35% | $170.68K | +28,500 | 0.00% |
| UBS Group AG | 33,179 | 0.21% | $104.18K | −15,611 | 0.00% |
| Northern Trust Corp | 30,896 | 0.20% | $97.01K | +12,165 | 0.00% |
| Price T Rowe Associates Inc /Md/ | 20,500 | 0.13% | $65 | – | 0.00% |
| Peak6 LLC | 20,000 | 0.13% | $62.80K | New | 0.00% |
| Investment House LLC | 17,300 | 0.11% | $54.32K | −34,575 | 0.00% |
| JPMorgan Chase & Co | 16,107 | 0.10% | $51.22K | +16,099 | 0.00% |
| XTX Topco Ltd | 12,289 | 0.08% | $38.59K | −13,286 | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 33 | 3M | 16.2% | 10 / 9 | 6 / 6 | 2M | 0M |
| Q1 2026 | 29 | 1M | 8.6% | 6 / 6 | 5 / 6 | 1M | 0M |
| Q4 2025 | 30 | 1M | 7.3% | 11 / 5 | 6 / 2 | 1M | 0M |
| Q3 2025 | 23 | 1M | 4.7% | 12 / 8 | 2 / 7 | 1M | 0M |
| Q2 2025 | 18 | 0M | 0.9% | 5 / 5 | 4 / 5 | 0M | 0M |
| Q1 2025 | 18 | 0M | 1.8% | 18 / 0 | 0 / 0 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of HYPD | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 290,757 | 1.87% | $912.98K | 0.00% | Jun 30, 2026 |
| Putnam Small Cap Value Fund | 286,628 | 1.84% | $1.00M | 0.34% | May 31, 2026 |
| Vanguard Extended Market Index Fund | 176,041 | 1.13% | $552.77K | 0.00% | Jun 30, 2026 |
| Putnam VT Small Cap Value Fund | 109,172 | 0.70% | $342.80K | 0.28% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 37,727 | 0.24% | $132.04K | 0.00% | May 31, 2026 |
| iShares Micro-Cap ETF | 33,999 | 0.22% | $106.76K | 0.01% | Jun 30, 2026 |
| T. Rowe Price Extended Equity Market Index Fund | 20,500 | 0.13% | $64.37K | 0.01% | Jun 30, 2026 |
| Fidelity Total Market Index Fund | 13,409 | 0.09% | $46.93K | 0.00% | May 31, 2026 |
| Fidelity Series Total Market Index Fund | 10,255 | 0.07% | $35.89K | 0.00% | May 31, 2026 |
| Fidelity Nasdaq Composite Index Fund | 3,922 | 0.03% | $13.73K | 0.00% | May 31, 2026 |
| 1290 VT Micro Cap Portfolio | 2,293 | 0.01% | $7.20K | 0.00% | Jun 30, 2026 |
| Total Stock Market Index Trust | 212 | 0.00% | $666 | 0.00% | Jun 30, 2026 |
| Blackstone Alternative Multi-Strategy Fund | -4,651 | -0.03% | -$14.60K | -0.00% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Hyunsu Jung | See Remarks, Director | 1,345,676 | 8.66% | Aug 18, 2026 |
| Michael M. Rowe | Chief Executive Officer, Director | 7,975 | 0.05% | Jul 9, 2025 |
| David R. Knox | Chief Financial Officer | 287,556 | 1.85% | Sep 30, 2026 |
| Robert Rubenstein | General Counsel | 75,000 | 0.48% | Jan 12, 2026 |
| Bren Kern | Chief Operating Officer | 50,031 | 0.32% | Apr 23, 2025 |
| Happy David Walters | Director | 170,847 | 1.10% | Jul 1, 2026 |
| Ellen R. Strahlman | Director | 184,947 | 1.19% | Jul 1, 2026 |
| Rachel Jacobson | Director | 115,218 | 0.74% | Jul 1, 2026 |
| Michael S. Geltzeiler | Director | 146,932 | 0.95% | Jul 1, 2026 |
| Ram Palanki | Director | 4,235 | 0.03% | Apr 29, 2025 |
| Charles E. Mather Iv | Director | 9,950 | 0.06% | Apr 29, 2025 |
| Tsontcho Ianchulev | Director | 17,780 | 0.11% | Apr 29, 2025 |
| Avenue Capital Management II, L.P. | 10% owner | 30,619 | 0.20% | Jun 3, 2025 |
| Marc Lasry | 10% owner | – | – | Jun 3, 2025 |
| Avenue Venture Opportunities Fund II, L.P. | 10% owner | 30,619 | 0.20% | Jun 3, 2025 |
| Avenue Venture Opportunities Fund, L.P. | 10% owner | – | – | Jun 3, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| David R. Knox Chief Financial Officer | Sep 29, 2026 | Tax withholding | −19,563 | – | – | 287,556 |
| Hyunsu Jung See Remarks, Director | Aug 16, 2026 | Tax withholding | −40,000 | – | – | 1,345,676 |
| Happy David Walters Director | Jun 30, 2026 | Award | +58,917 | – | – | 170,847 |
| Michael S. Geltzeiler Director | Jun 30, 2026 | Award | +58,917 | – | – | 146,932 |
| Ellen R. Strahlman Director | Jun 30, 2026 | Award | +58,917 | – | – | 150,078 |
| Rachel Jacobson Director | Jun 30, 2026 | Award | +58,917 | – | – | 115,218 |
| Hyunsu Jung See Remarks, Director | Jun 2, 2026 | Buy | +500 | $3.68 | $1.84K | 1,385,676 |
| Hyunsu Jung See Remarks, Director | Jun 2, 2026 | Buy | +500 | $3.64 | $1.82K | 1,385,176 |
| Hyunsu Jung See Remarks, Director | Jun 1, 2026 | Buy | +2,000 | $3.81 | $7.62K | 1,384,676 |
| Hyunsu Jung See Remarks, Director | Jun 1, 2026 | Buy | +5,000 | $3.66 | $18.30K | 1,382,676 |
| Hyunsu Jung See Remarks, Director | May 27, 2026 | Tax withholding | −40,000 | – | – | 1,377,676 |
| David R. Knox Chief Financial Officer | Mar 30, 2026 | Tax withholding | −20,831 | – | – | 307,119 |
| Robert Rubenstein General Counsel | Jan 12, 2026 | Award | +75,000 | – | – | 75,000 |
| David R. Knox Chief Financial Officer | Dec 31, 2025 | Buy | +27,950 | $3.59 | $100.34K | 327,950 |
| Ellen R. Strahlman Director | Dec 29, 2025 | Buy | +11,856 | $3.61 | $42.80K | 34,869 |
| Ellen R. Strahlman Director | Dec 29, 2025 | Buy | +12,112 | $3.60 | $43.60K | 91,161 |
| Hyunsu Jung See Remarks, Director | Dec 29, 2025 | Tax withholding | −82,324 | – | – | 1,417,676 |
| Ellen R. Strahlman Director | Dec 26, 2025 | Buy | +3,311 | $3.86 | $12.78K | 23,013 |
| Ellen R. Strahlman Director | Dec 26, 2025 | Buy | +3,601 | $3.86 | $13.90K | 79,049 |
| Ellen R. Strahlman Director | Dec 18, 2025 | Buy | +19,702 | $3.14 | $61.86K | 95,150 |
| Ellen R. Strahlman Director | Dec 18, 2025 | Buy | +18,742 | $3.14 | $58.85K | 75,448 |
| Michael S. Geltzeiler Director | Dec 17, 2025 | Buy | +30,000 | $3.01 | $90.30K | 88,015 |
| Happy David Walters Director | Dec 17, 2025 | Buy | +61,930 | $3.02 | $187.03K | 111,930 |
| David R. Knox Chief Financial Officer | Sep 29, 2025 | Award | +200,000 | – | – | 300,000 |
| David R. Knox Chief Financial Officer | Sep 29, 2025 | Award | +100,000 | – | – | 100,000 |
| Happy David Walters Director | Sep 8, 2025 | Award | +50,000 | – | – | 50,000 |
| Michael S. Geltzeiler Director | Aug 18, 2025 | Award | +50,000 | – | – | 58,015 |
| Rachel Jacobson Director | Aug 18, 2025 | Award | +50,000 | – | – | 56,301 |
| Hyunsu Jung Chief Investment Officer, Director | Aug 18, 2025 | Award | +1,000,000 | – | – | 1,500,000 |
| Ellen R. Strahlman Director | Aug 18, 2025 | Award | +50,000 | – | – | 56,706 |
| Hyunsu Jung Chief Investment Officer, Director | Jun 17, 2025 | Award | +500,000 | – | – | 500,000 |
| Michael M. Rowe Chief Executive Officer, Director | Jun 13, 2025 | Award | +6,600 | – | – | 7,975 |
| Rachel Jacobson Director | Jun 13, 2025 | Award | +5,000 | – | – | 6,301 |
| Ellen R. Strahlman Director | Jun 13, 2025 | Award | +5,000 | – | – | 6,706 |
| Michael S. Geltzeiler Director | Jun 13, 2025 | Award | +7,000 | – | – | 8,015 |
| Rachel Jacobson Director | Apr 21, 2025 | Award | +3,000 | – | – | 4,301 |
| Ellen R. Strahlman Director | Apr 21, 2025 | Award | +3,000 | – | – | 4,706 |
| Charles E. Mather Iv Director | Apr 21, 2025 | Award | +8,000 | – | – | 9,950 |
| Ram Palanki Director | Apr 21, 2025 | Award | +3,000 | – | – | 4,235 |
| Michael S. Geltzeiler Director | Apr 21, 2025 | Award | +5,000 | – | – | 6,015 |
| Tsontcho Ianchulev Director | Apr 21, 2025 | Award | +5,000 | – | – | 10,122 |
| Michael S. Geltzeiler Director | Apr 21, 2025 | Award | +5,000 | – | – | 6,016 |
| Ram Palanki Director | Apr 21, 2025 | Award | +3,000 | – | – | 4,236 |
| Ellen R. Strahlman Director | Apr 21, 2025 | Award | +3,000 | – | – | 4,707 |
| Bren Kern Chief Operating Officer | Apr 21, 2025 | Award | +50,000 | – | – | 50,031 |
| Charles E. Mather Iv Director | Apr 21, 2025 | Award | +8,000 | – | – | 9,953 |
| Rachel Jacobson Director | Apr 21, 2025 | Award | +3,000 | – | – | 4,302 |
| Tsontcho Ianchulev Director | Apr 21, 2025 | Award | +5,000 | – | – | 10,124 |
| Michael M. Rowe Chief Executive Officer, Director | Aug 28, 2024 | Buy | +27,071 | $0.52 | $14.08K | 109,998 |
| Michael M. Rowe Chief Executive Officer, Director | Aug 26, 2024 | Buy | +50,000 | $0.57 | $28.50K | 82,927 |
| Stuart M. Grant 10% owner | Jul 2, 2024 | Buy | +1,515,151 | $0.66 | $1,000.00K | 10,914,153 |
| Tsontcho Ianchulev Director | Jun 12, 2024 | Award | +61,481 | – | – | 409,933 |
| Rachel Jacobson Director | Jun 12, 2024 | Award | +61,481 | – | – | 104,233 |
| Michael S. Geltzeiler Director | Jun 12, 2024 | Award | +61,481 | – | – | 81,295 |
| Ellen R. Strahlman Director | Jun 12, 2024 | Award | +61,481 | – | – | 136,594 |
| Charles E. Mather Iv Director | Jun 12, 2024 | Award | +61,481 | – | – | 156,266 |
| Ram Palanki Director | Jun 12, 2024 | Award | +61,481 | – | – | 98,909 |
| Stuart M. Grant 10% owner | Mar 28, 2024 | Buy | +100,000 | $0.98 | $98.00K | 5,430,715 |
| Stuart M. Grant 10% owner | Mar 19, 2024 | Buy | +50,000 | $1.23 | $61.50K | 5,330,715 |
| Stuart M. Grant 10% owner | Mar 8, 2024 | Buy | +10,717 | $1.58 | $16.93K | 5,280,715 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Charles E. Mather Iv Director | Jul 22, 2025 | 1,362 | $17.52K | Jul 22, 2025 | Open Mkt Purchase |
| Tsontcho Ianchulev Officer | May 1, 2023 | 90,000 | $495.00K | May 1, 2023 | Participation in Capital Raise |
| Tsontcho Ianchulev Officer | Apr 27, 2023 | 60,000 | $300.00K | Apr 27, 2023 | Participation in Capital Raise |
| Tsontcho Ianchulev Officer | Apr 14, 2023 | 40,000 | $180.00K | Apr 14, 2023 | Participation in Capital Raise |