SAREPTA THERAPEUTICS INC SRPT
COM · Common Stock · CUSIP 803607100 · ISIN US8036071004
Biopharmaceutical company
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersCambridge, MA
- Founded1980
- Websitesarepta.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($2.5m this quarter). Holder counts are more reliable. Shares outstanding: 105.6m as of 2026-07-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $17.96. Options: 14 managers hold calls ($53.4m notional), 15 hold puts ($64.6m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 376 |
| Q4 2022 | 414 |
| Q1 2023 | 427 |
| Q2 2023 | 406 |
| Q3 2023 | 396 |
| Q4 2023 | 397 |
| Q1 2024 | 416 |
| Q2 2024 | 486 |
| Q3 2024 | 460 |
| Q4 2024 | 467 |
| Q1 2025 | 433 |
| Q2 2025 | 365 |
| Q3 2025 | 320 |
| Q4 2025 | 349 |
| Q1 2026 | 346 |
| Q2 2026 | 324 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 225 | 237 |
| Q4 2024 | 212 | 220 |
| Q1 2025 | 211 | 249 |
| Q2 2025 | 222 | 217 |
| Q3 2025 | 173 | 208 |
| Q4 2025 | 198 | 132 |
| Q1 2026 | 150 | 177 |
| Q2 2026 | 143 | 184 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $140.5m | $115.1m | 0.82 |
| Q4 2025 | $116.8m | $135.4m | 1.16 |
| Q1 2026 | $101.7m | $104.7m | 1.03 |
| Q2 2026 | $53.4m | $64.6m | 1.21 |
Biggest buyers
| BlackRock, Inc. | Added | +4.2m |
| STATE STREET CORP | Added | +2.3m |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Added | +1.7m |
| MARSHALL WACE, LLP | Added | +1.5m |
| GOLDMAN SACHS GROUP INC | Added | +964.2k |
| Assenagon Asset Management S.A. | New | +908.8k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +783.0k |
| Qube Research & Technologies Ltd | New | +609.8k |
| MACKENZIE FINANCIAL CORP | Added | +543.4k |
| Point72 Asset Management, L.P. | New | +510.9k |
Biggest sellers
| RA CAPITAL MANAGEMENT, L.P. | Sold out | -3.9m |
| AQR CAPITAL MANAGEMENT LLC | Reduced | -2.1m |
| CANADA PENSION PLAN INVESTMENT BOARD | Reduced | -1.2m |
| CITADEL ADVISORS LLC | Sold out | -652.2k |
| UBS Group AG | Reduced | -608.0k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -577.0k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -543.7k |
| D. E. Shaw & Co., Inc. | Sold out | -475.0k |
| Erste Asset Management GmbH | Reduced | -400.0k |
| MORGAN STANLEY | Reduced | -394.4k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $23.7m1.3m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $12.1m671.1k shares |
| GROUP ONE TRADING LLC | Reduced | $6.8m377.4k shares |
| Caption Management, LLC | Added | $3.8m212.5k shares |
| SIMPLEX TRADING, LLC | Reduced | $3.4m187.3k shares |
| IMC-Chicago, LLC | Reduced | $1.4m77.5k shares |
| JANE STREET GROUP, LLC | Reduced | $549.9k30.6k shares |
| Walleye Capital LLC | Reduced | $515.7k28.7k shares |
| CAPITAL FUND MANAGEMENT S.A. | Reduced | $451.0k25.1k shares |
| Hudson Bay Capital Management LP | Reduced | $359.4k20.0k shares |
Biggest puts
| LMR Partners LLP | Reduced | $25.0m1.4m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $16.8m936.2k shares |
| IMC-Chicago, LLC | Reduced | $4.6m257.9k shares |
| CITADEL ADVISORS LLC | Reduced | $4.0m223.7k shares |
| WHITEBOX ADVISORS LLC | Unchanged | $3.9m214.6k shares |
| SIMPLEX TRADING, LLC | Reduced | $2.7m153.0k shares |
| Balyasny Asset Management L.P. | Added | $1.8m100.0k shares |
| GROUP ONE TRADING LLC | Reduced | $1.6m87.4k shares |
| NOMURA HOLDINGS INC | New | $1.4m79.9k shares |
| Caption Management, LLC | Unchanged | $898.5k50.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution +3.2 pts · filed 2026-07-30 | 15.8% |
| STATE STREET CORP 13G · institution +3.0 pts · filed 2026-08-07 | 8.4% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution +1.6 pts · filed 2026-07-31 | 8.1% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.1% |
| AQR CAPITAL MANAGEMENT LLC 13G · institution -2.7 pts · filed 2026-08-13 | 5.0% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC), D. E. SHAW & CO, L.P. (1.9%, 2025-11-14)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 2 | $1.5m | — |
| Q1 2025 | 0 | — | 1 | $248.2k | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 1 | $294.2k | — |
| Q1 2026 | 0 | — | 1 | $123.2k | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 0 | — | — |
None reported since 1 Apr 2026.
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 19.0m $341.3m | Added +4.2m |
| STATE STREET CORP 0.00% of their portfolio | 8.9m $160.2m | Added +2.3m |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.01% of their portfolio | 8.4m $150.5m | Added +1.7m |
| TWO SIGMA INVESTMENTS, LP 0.06% of their portfolio | 4.6m $82.6m | Added +5.5k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 4.6m $82.5m | Added +13.5k |
| FIRST TRUST ADVISORS LP 0.05% of their portfolio | 4.4m $78.5m | Added +230.2k |
| AQR CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 4.3m $76.9m | Reduced -2.1m |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 2.8m $49.8m | Added +783.0k |
| Erste Asset Management GmbH 0.35% of their portfolio | 2.6m $45.5m | Reduced -400.0k |
| MARSHALL WACE, LLP 0.03% of their portfolio | 2.2m $39.6m | Added +1.5m |
| MORGAN STANLEY 0.00% of their portfolio | 2.2m $39.6m | Reduced -394.4k |
| Aberdeen Group plc 0.06% of their portfolio | 2.2m $39.4m | Reduced -123.9k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 2.1m $36.9m | Reduced -89.9k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 2.0m $36.7m | Added +964.2k |
| UBS Group AG 0.00% of their portfolio | 1.6m $29.2m | Reduced -608.0k |
| FEDERATED HERMES, INC. 0.04% of their portfolio | 1.6m $28.6m | Reduced -195.7k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 1.2m $21.8m | Added +486.5k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 1.2m $21.4m | Reduced -28.2k |
| T. Rowe Price Investment Management, Inc. 0.01% of their portfolio | 1.2m $20.8m | Added +22.8k |
| CITIGROUP INC 0.01% of their portfolio | 1.2m $20.8m | Added +7.4k |
| RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio | 1.1m $20.2m | Reduced -543.7k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 980.3k $17.6m | Added +189.2k |
| Connor, Clark & Lunn Investment Management Ltd. 0.03% of their portfolio | 973.5k $17.5m | Reduced -46.5k |
| Assenagon Asset Management S.A. 0.01% of their portfolio | 908.8k $16.3m | New |
| Invesco Ltd. 0.00% of their portfolio | 903.4k $16.2m | Added +493.1k |
| Legal & General Group Plc 0.00% of their portfolio | 877.6k $15.8m | Added +10.9k |
| 683 Capital Management, LLC 1.29% of their portfolio | 782.5k $14.1m | Added +32.5k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 774.2k $13.9m | Added +86.6k |
| ADAR1 Capital Management, LLC 0.62% of their portfolio | 730.6k $13.1m | Added +468.6k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 703.6k $12.6m | Added +366.9k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 698.3k $12.5m | Added +41.5k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 681.1k $12.2m | Reduced -18.6k |
| Jump Financial, LLC 0.11% of their portfolio | 679.4k $12.2m | Added +171.6k |
| Voleon Capital Management LP 0.22% of their portfolio | 674.2k $12.1m | Reduced -126.4k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 609.8k $11.0m | New |
| MACKENZIE FINANCIAL CORP 0.01% of their portfolio | 599.6k $10.8m | Added +543.4k |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 565.7k $10.2m | Added +5.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 544.4k $9.3m | Reduced -158.8k |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 510.9k $9.2m | New |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 510.6k $9.2m | Added +1.1k |
| C WorldWide Group Holding A/S 0.21% of their portfolio | 490.3k $8.8m | Unchanged |
| Casdin Capital, LLC 0.42% of their portfolio | 470.0k $8.4m | New |
| PANAGORA ASSET MANAGEMENT INC 0.02% of their portfolio | 451.9k $8.1m | New |
| Hudson Bay Capital Management LP 0.04% of their portfolio | 450.0k $8.1m | Added +190.0k |
| Man Group plc 0.01% of their portfolio | 398.1k $7.2m | Added +362.9k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 394.2k $7.1m | Added +300.1k |
| Nuveen, LLC 0.00% of their portfolio | 379.3k $6.8m | Added +192.5k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 362.7k $6.5m | Reduced -12.1k |
| CAPITAL FUND MANAGEMENT S.A. 0.04% of their portfolio | 323.4k $5.8m | Reduced -135.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 320.5k $5.8m | Reduced -577.0k |
| Trexquant Investment LP 0.04% of their portfolio | 320.3k $5.8m | Reduced -3.6k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 299.1k $6.5m | Added +235.3k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.02% of their portfolio | 262.6k $4.7m | Reduced -170.0k |
| SEGALL BRYANT & HAMILL, LLC 0.06% of their portfolio | 258.2k $4.6m | New |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 244.3k $4.4m | Added +41.3k |
| FMR LLC 0.00% of their portfolio | 237.0k $4.3m | Added +222.5k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 236.3k $4.2m | Reduced -25.0k |
| Y-Intercept (Hong Kong) Ltd 0.08% of their portfolio | 231.5k $4.2m | Added +142.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 222.5k $4.0m | Reduced -54.5k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 221.1k $4.0m | Added +93.9k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 219.4k $3.9m | Reduced -3.5k |
| Generali Investments CEE, investicni spolecnost, a.s. 0.18% of their portfolio | 211.8k $3.8m | Added +48.6k |
| Swiss National Bank 0.00% of their portfolio | 200.1k $3.6m | Added +4.1k |
| Empowered Funds, LLC 0.02% of their portfolio | 190.6k $3.4m | Added +76.7k |
| Jefferies Financial Group Inc. 0.03% of their portfolio | 190.2k $3.4m | Added +111.2k |
| SG Americas Securities, LLC 0.00% of their portfolio | 186.7k $3.4m | Reduced -372.4k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 169.7k $3.0m | Added +96.6k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 156.8k $2.8m | Added +62.4k |
| INTECH INVESTMENT MANAGEMENT LLC 0.03% of their portfolio | 153.5k $2.8m | Added +110.7k |
| Balyasny Asset Management L.P. 0.01% of their portfolio | 152.3k $2.7m | Reduced -239.8k |
| Bridgewater Associates, LP 0.01% of their portfolio | 152.1k $2.7m | Added +17.8k |
| Boxer Capital Management, LLC 0.20% of their portfolio | 150.0k $2.7m | Unchanged |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 148.3k $2.7m | Added +45.1k |
| HUSSMAN STRATEGIC ADVISORS, INC. 0.61% of their portfolio | 147.0k $2.6m | New |
| Schonfeld Strategic Advisors LLC 0.01% of their portfolio | 138.0k $2.5m | New |
| Privium Fund Management B.V. 0.45% of their portfolio | 136.5k $2.5m | Added +90.5k |
| IEQ CAPITAL, LLC 0.01% of their portfolio | 131.8k $2.4m | Reduced -238.7k |
| BARCLAYS PLC 0.00% of their portfolio | 128.2k $2.3m | Reduced -7.8k |
| Mariner, LLC 0.00% of their portfolio | 123.9k $2.2m | Reduced -95.8k |
| Rafferty Asset Management, LLC 0.01% of their portfolio | 123.7k $2.2m | Reduced -39.0k |
| XTX Topco Ltd 0.03% of their portfolio | 118.4k $2.1m | Added +105.2k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 117.3k $2.1m | Reduced -3.4k |
| WORLDQUANT MILLENNIUM ADVISORS LLC 0.01% of their portfolio | 114.9k $2.1m | Reduced -99.6k |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 114.7k $2.1m | Reduced -14.2k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 113.7k $2.0m | Added +101.0k |
| ALPS ADVISORS INC 0.01% of their portfolio | 106.5k $1.9m | Added +21.1k |
| GSA CAPITAL PARTNERS LLP 0.12% of their portfolio | 103.6k $1.9m | Added +12.7k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 100.5k $1.8m | Added +3.4k |
| NOMURA HOLDINGS INC 0.01% of their portfolio | 95.0k $1.7m | New |
| HARBOR CAPITAL ADVISORS, INC. 0.11% of their portfolio | 92.7k $1.7m | Added +12.6k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 89.7k $1.6m | Unchanged |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 86.1k $1.5m | Added +938 |
| Squarepoint Ops LLC 0.00% of their portfolio | 84.0k $1.5m | Reduced -64.8k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 81.7k $1.5m | Added +11.7k |
| Freestone Grove Partners LP 0.01% of their portfolio | 76.6k $1.4m | Added +69.7k |
| Virtus Investment Advisers, LLC 0.32% of their portfolio | 76.0k $1.4m | Added +36.7k |
| Cerity Partners LLC 0.00% of their portfolio | 72.7k $1.3m | Reduced -77.1k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.00% of their portfolio | 70.8k $1.3m | Reduced -1.2m |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 70.2k $1.3m | Added +14.7k |
| Quantinno Capital Management LP 0.00% of their portfolio | 68.5k $1.2m | Reduced -22.8k |