Sarepta Therapeutics Inc
Ownership
Ownership Structure
Who owns Sarepta Therapeutics Inc (SRPT)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 95.2% of the shares are freely tradable; institutional investors hold 99.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 13.97 | 14,755,277 | +3.3 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 6.29 | 6,640,692 | +0.0 | 03/31/2026 |
| State Street Corp | 6.26 | 6,613,314 | +0.2 | 03/31/2026 |
| AQR Capital Management LLC | 6.09 | 6,433,112 | -17.5 | 03/31/2026 |
| Two Sigma Investments LLC | 4.35 | 4,598,735 | +0.1 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.33 | 4,578,235 | +0.0 | 03/31/2026 |
| First Trust Advisors L.P. | 4.13 | 4,365,951 | +5.6 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 6.09 | 6,436,767 | +0.0 | 08/31/2026 |
| First Trust NYSE Arca Biotech ETF | 4.52 | 4,777,645 | +0.0 | 08/31/2026 |
| State Street® SPDR® S&P® Biotech ETF | 4.44 | 4,694,608 | -1.1 | 08/31/2026 |
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 |
|---|---|---|---|---|---|
| Severino Michael | Chief Executive Officer | 756,104 | 15,651,353 $ | Jul 28, 2026 | direct |
| Rodino-Klapac Louise | President, R&D and Tech Ops | 203,900 | 4,220,730 $ | Sep 4, 2026 | direct |
| Estepan Ian Michael | Chief Operating Officer | 177,184 | 3,667,709 $ | Sep 4, 2026 | direct |
| Wong Ryan Ho-Yan | Chief Financial Officer | 121,792 | 2,521,094 $ | Sep 4, 2026 | direct |
| Rothfuss Cristin | EVP, General Counsel | 115,519 | 2,391,243 $ | Sep 4, 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 4, 2026 | Wong Ryan Ho-Yan | Chief Financial Officer | Other | 13,272 | 22.22 | 294,904 |
| Sep 4, 2026 | Estepan Ian Michael | Chief Operating Officer | Other | 24,799 | 22.22 | 551,034 |
| Sep 4, 2026 | Rothfuss Cristin | EVP, General Counsel | Other | 22,025 | 22.22 | 489,396 |
| Sep 4, 2026 | Rodino-Klapac Louise | President, R&D and Tech Ops | Other | 21,423 | 22.22 | 476,019 |
| Jul 28, 2026 | Severino Michael | Chief Executive Officer | Other | 756,104 | – | – |
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 17, 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.