HDRN
Ownership
Ownership Structure
Who owns HDRN (HDRN)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 66.4% of the shares are freely tradable; institutional investors hold 24.2%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Aristeia Capital, LLC | 3.99 | 2,853,906 | +0.0 | 06/30/2026 |
| Yorkville Advisors Global, LP | 0.57 | 407,608 | +0.0 | 06/30/2026 |
| Periscope Capital Inc. | 0.20 | 141,304 | +0.0 | 06/30/2026 |
| Ionic Capital Management LLC | 0.15 | 105,896 | +0.0 | 06/30/2026 |
| Valeo Financial Advisors, LLC | 0.04 | 30,000 | +0.0 | 06/30/2026 |
| Haverford Trust Co | 0.01 | 10,000 | +0.0 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| AQR Corp Abtg IAU1F USD Acc | 0.14 | 99,294 | +0.0 | 03/31/2026 |
| Fidelity Nasdaq Composite Index | 0.04 | 29,190 | +0.0 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Katz Avi S | Chairman | 862,811 | 1,207,935 $ | Sep 2, 2026 | direct |
| Williams Eric Scott | EVP of Engineering | 750,000 | 1,050,000 $ | Sep 2, 2026 | direct |
| Canavan Kenneth Jr. | Chief Operating Officer | 500,000 | 700,000 $ | Sep 2, 2026 | direct |
| Shukla Rahul | Chief Financial Officer | 500,000 | 700,000 $ | Sep 2, 2026 | direct |
| Dinu Raluca | Director | 154,895 | 216,853 $ | Aug 11, 2026 | direct |
| Lewis Robert James | Director | 67,395 | 94,353 $ | Aug 11, 2026 | direct |
| Zuckerman Adrian | Director | 67,395 | 94,353 $ | Aug 11, 2026 | direct |
| Horowitz Raanan | Director | 67,395 | 94,353 $ | Aug 11, 2026 | direct |
| Timm Bryan | Director | 67,395 | 94,353 $ | Aug 11, 2026 | direct |
| Hunter Ralph L. JR | Director | 67,395 | 94,353 $ | Aug 11, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 2, 2026 | Williams Eric Scott | EVP of Engineering | Other | 750,000 | 1.88 | 1,410,000 |
| Sep 2, 2026 | Canavan Kenneth Jr. | Chief Operating Officer | Other | 500,000 | 1.88 | 940,000 |
| Sep 2, 2026 | Shukla Rahul | Chief Financial Officer | Other | 500,000 | 1.88 | 940,000 |
| Sep 2, 2026 | Katz Avi S | Chairman | Other | 707,916 | 1.88 | 1,330,882 |
| Aug 11, 2026 | Lewis Robert James | Director | Other | 67,395 | 1.84 | 124,007 |
| Aug 11, 2026 | Zuckerman Adrian | Director | Other | 67,395 | 1.84 | 124,007 |
| Aug 11, 2026 | Horowitz Raanan | Director | Other | 67,395 | 1.84 | 124,007 |
| Aug 11, 2026 | Katz Avi S | Chairman | Other | 67,395 | 1.84 | 124,007 |
| Aug 11, 2026 | Dinu Raluca | Director | Other | 67,395 | 1.84 | 124,007 |
| Aug 11, 2026 | Timm Bryan | Director | Other | 67,395 | 1.84 | 124,007 |
| Aug 11, 2026 | Hunter Ralph L. JR | Director | Other | 67,395 | 1.84 | 124,007 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 25, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.