BioCryst Pharmaceuticals Inc
Ownership
Ownership Structure
Who owns BioCryst Pharmaceuticals Inc (BCRX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 87.0% of the shares are freely tradable; institutional investors hold 101.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 9.35 | 23,893,036 | +5.5 | 06/30/2026 |
| RA Capital Management, LLC | 6.19 | 15,827,186 | +0.0 | 06/30/2026 |
| State Street Corp | 5.94 | 15,191,098 | +24.4 | 06/30/2026 |
| Deerfield Management Co | 5.91 | 15,096,403 | +0.4 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.45 | 11,364,236 | +2.1 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 4.36 | 11,139,158 | -0.9 | 06/30/2026 |
| TCG Crossover Management, LLC | 4.31 | 11,020,968 | +0.0 | 06/30/2026 |
| Perceptive Advisors LLC | 4.03 | 10,308,888 | +38.7 | 06/30/2026 |
| Jupiter Topco LLC | 3.73 | 9,540,764 | +0.0 | 06/30/2026 |
| HHG PLC | 3.49 | 8,908,506 | +20.3 | 03/31/2026 |
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 |
|---|---|---|---|---|---|
| Stonehouse Jon P | Director | 1,340,419 | 10,991,436 $ | Aug 31, 2026 | direct |
| Milano Vincent | Director | 109,642 | 899,064 $ | Aug 31, 2026 | direct |
| McKee Amy E | Director | 47,821 | 392,132 $ | Aug 31, 2026 | direct |
| Frank Steven | Director | 36,747 | 301,325 $ | Aug 31, 2026 | direct |
| Milne Jill C. | Director | 33,226 | 272,453 $ | Aug 31, 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 |
|---|---|---|---|---|---|---|
| Aug 31, 2026 | Stonehouse Jon P | Director | Other | 644 | 9.70 | 6,247 |
| Aug 31, 2026 | Milne Jill C. | Director | Other | 1,288 | 9.70 | 12,494 |
| Aug 31, 2026 | Milano Vincent | Director | Other | 1,159 | 9.70 | 11,242 |
| Aug 31, 2026 | McKee Amy E | Director | Other | 644 | 9.70 | 6,247 |
| Aug 31, 2026 | Frank Steven | Director | Other | 1,288 | 9.70 | 12,494 |
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: November 2, 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.