HDRN (HDRN) Ownership
HDRN ownership summary
as of October 18, 2026- Institutions
- 11.0% of shares outstanding
- Insiders
- 36.79% of shares outstanding
- Shares outstanding
- 71.5M
- Float
- 13.5M shares available to trade
- Short interest
- — 261K shares short
- Days to cover
- 3.04 short interest up 5.8% vs prior month
- Institutions 11.02%
- Insiders 36.79%
- Other investors 52.19%
HDRN top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Aristeia Capital, LLC | 3.99% | 2.9M | $1.9M | +2.9M (0.0%) | June 30, 2026 |
| 2 | Yakira Capital Management, Inc. | 1.11% | 796K | $529,485 | +796,218 (0.0%) | June 30, 2026 |
| 3 | Yorkville Advisors Global, LP | 0.57% | 408K | $271,059 | +407,608 (0.0%) | June 30, 2026 |
| 4 | Cable Car Capital LLC | 0.56% | 400K | $266,000 | +400,000 (0.0%) | June 30, 2026 |
| 5 | Centiva Capital LP | 0.40% | 283K | $187,935 | +282,609 (0.0%) | June 30, 2026 |
| 6 | Harraden Circle Investments LLC | 0.40% | 283K | $187,935 | +282,609 (0.0%) | June 30, 2026 |
| 7 | Meteora Capital, LLC | 0.26% | 189K | $125,685 | +189,000 (0.0%) | June 30, 2026 |
| 8 | Periscope Capital Inc. | 0.20% | 141K | $93,967 | +141,304 (0.0%) | June 30, 2026 |
| 9 | L1 Global Manager Pty Ltd | 0.20% | 141K | $93,967 | +141,304 (0.0%) | June 30, 2026 |
| 10 | Ionic Capital Management LLC | 0.15% | 106K | $70,421 | +105,896 (0.0%) | June 30, 2026 |
| 11 | BOOTHBAY FUND MANAGEMENT, LLC | 0.12% | 87K | $57,811 | +86,934 (0.0%) | June 30, 2026 |
| 12 | JPMorgan Chase & Co | 0.08% | 55K | $36,362 | +54,680 (0.0%) | June 30, 2026 |
| 13 | Valeo Financial Advisors, LLC | 0.04% | 30K | $19,950 | +30,000 (0.0%) | June 30, 2026 |
| 14 | Geode Capital Management, LLC | 0.04% | 29K | $19,411 | +29,190 (0.0%) | June 30, 2026 |
| 15 | UBS Group AG | 0.03% | 24K | $16,211 | +24,377 (0.0%) | June 30, 2026 |
| 16 | SummitTX Capital, L.P | 0.03% | 22K | $14,630 | +22,000 (0.0%) | June 30, 2026 |
| 17 | Lineage Point Capital LP | 0.02% | 13K | $8,821 | +13,264 (0.0%) | June 30, 2026 |
| 18 | Haverford Trust Co | 0.01% | 10K | $6,650 | +10,000 (0.0%) | June 30, 2026 |
| 19 | Wells Fargo & Co | <0.01% | 100 | $66 | +100 (0.0%) | June 30, 2026 |
| 20 | Morgan Stanley - Brokerage Accounts | <0.01% | 46 | $31 | +46 (0.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 20 holders added 5.9M shares and 0 cut 0.
HDRN top mutual fund and ETF holders
1 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Fidelity Nasdaq Composite Index | 0.04% | 29K | $19,411 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
Who owns HDRN
Institutional investors own 11.0% of HDRN's shares and insiders 36.79%. The largest holder is Aristeia Capital, LLC with 3.99% of the shares (2.9M), as of June 30, 2026. Among the top 20 institutions, 20 added shares and 0 reduced their stake in the latest filings.
Related: HDRN key metrics. See the HDRN stock overview for the latest quote and news.
HDRN ownership FAQ
Who owns the most HDRN stock?
The largest shareholders of HDRN are Aristeia Capital, LLC (3.99%), Yakira Capital Management, Inc. (1.11%), Yorkville Advisors Global, LP (0.57%), Cable Car Capital LLC (0.56%), Centiva Capital LP (0.40%).
What percentage of HDRN is owned by institutions?
Institutions hold 11.0% of HDRN's shares outstanding; insiders hold 36.79%.
Which funds own HDRN?
The largest fund holders of HDRN are Fidelity Nasdaq Composite Index (0.04%).
How many shares of HDRN are outstanding?
HDRN has 71.5M shares outstanding, of which 13.5M are in the public float.