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 ($19.2m this quarter). Holder counts are more reliable. Shares outstanding: 95.4m as of 2024-08-02, 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 ≈ $157.99. Options: 40 managers hold calls ($728.7m notional), 26 hold puts ($324.9m).
Trends to Q2 2024
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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 199 | 169 |
| Q1 2023 | 219 | 183 |
| Q2 2023 | 204 | 205 |
| Q3 2023 | 201 | 180 |
| Q4 2023 | 181 | 206 |
| Q1 2024 | 215 | 178 |
| Q2 2024 | 291 | 175 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $655.9m | $524.1m | 0.80 |
| Q4 2023 | $715.7m | $383.4m | 0.54 |
| Q1 2024 | $656.0m | $204.9m | 0.31 |
| Q2 2024 | $728.7m | $324.9m | 0.45 |
Biggest buyers
| BlackRock Inc. | Added | +4.4m |
| STATE STREET CORP | Added | +2.0m |
| JANE STREET GROUP, LLC | Added | +591.0k |
| FMR LLC | Added | +512.0k |
| PRINCIPAL FINANCIAL GROUP INC | Added | +317.3k |
| Invesco Ltd. | Added | +275.4k |
| Man Group plc | Added | +266.4k |
| VANGUARD GROUP INC | Added | +239.9k |
| NORTHERN TRUST CORP | Added | +237.3k |
| TWO SIGMA INVESTMENTS, LP | Added | +199.1k |
Biggest sellers
| Avoro Capital Advisors LLC | Reduced | -1.3m |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -1.2m |
| JANUS HENDERSON GROUP PLC | Reduced | -1.1m |
| CITADEL ADVISORS LLC | Reduced | -747.3k |
| PERCEPTIVE ADVISORS LLC | Sold out | -525.7k |
| EcoR1 Capital, LLC | Reduced | -512.5k |
| Capital International Investors | Reduced | -496.7k |
| Camber Capital Management LP | Reduced | -435.0k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -301.9k |
| Pictet Asset Management Holding SA | Reduced | -301.3k |
Biggest calls
| Logos Global Management LP | Reduced | $158.0m1.0m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $95.0m601.2k shares |
| Twin Tree Management, LP | New | $63.3m400.6k shares |
| CITADEL ADVISORS LLC | Added | $61.0m386.1k shares |
| Caption Management, LLC | Reduced | $54.5m344.8k shares |
| JANE STREET GROUP, LLC | Added | $34.6m219.0k shares |
| Parallax Volatility Advisers, L.P. | Added | $27.6m174.9k shares |
| GROUP ONE TRADING LLC | Reduced | $26.7m169.3k shares |
| FARALLON CAPITAL MANAGEMENT, L.L.C. | Not comparable | $21.1m133.3k shares |
| Balyasny Asset Management L.P. | New | $19.8m125.0k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $113.9m720.8k shares |
| CITADEL ADVISORS LLC | Reduced | $31.9m202.2k shares |
| JANE STREET GROUP, LLC | Added | $24.2m153.4k shares |
| GROUP ONE TRADING LLC | Added | $23.1m146.5k shares |
| LMR Partners LLP | Added | $23.1m146.1k shares |
| SIMPLEX TRADING, LLC | Added | $21.6m137.0k shares |
| Caption Management, LLC | Added | $16.3m102.9k shares |
| Twin Tree Management, LP | New | $16.2m102.7k shares |
| CITIGROUP INC | New | $8.7m55.0k shares |
| GTS SECURITIES LLC | Reduced | $7.3m45.9k 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 in Q2 2024
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 |
|---|---|---|---|---|---|
| Q3 2022 | 1 | $11.0m | 0 | — | — |
| Q4 2022 | 0 | — | 1 | $94.3k | — |
| Q1 2023 | 0 | — | 0 | — | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 1 | $7.4m | 1 | $1.6m | — |
| Q4 2023 | 2 | $5.9m | 0 | — | — |
| Q1 2024 | 0 | — | 6 | $3.0m | — |
| Q2 2024 | 0 | — | 3 | $8.7m | $8.7m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-06-25 | Brown Ryan Edward EVP, General Counsel | Sold plan | $6.3m39.0k shares |
| 2024-06-25 | Arif Bilal Chief Tech Ops Officer | Sold plan | $636.3k3.9k shares |
| 2024-06-24 | Arif Bilal Chief Tech Ops Officer | Sold plan | $1.3m7.9k shares |
| 2024-05-02 | Murray Dallan Chief Customer Officer | Sold plan | $508.9k3.6k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.04% of their portfolio | 10.3m $1.6bn | Added +4.4m |
| VANGUARD GROUP INC 0.03% of their portfolio | 9.0m $1.4bn | Added +239.9k |
| Capital International Investors 0.14% of their portfolio | 4.3m $682.7m | Reduced -496.7k |
| STATE STREET CORP 0.03% of their portfolio | 4.1m $654.4m | Added +2.0m |
| JANUS HENDERSON GROUP PLC 0.32% of their portfolio | 3.8m $602.7m | Reduced -1.1m |
| JPMORGAN CHASE & CO 0.03% of their portfolio | 3.7m $582.6m | Added +30.3k |
| Avoro Capital Advisors LLC 6.31% of their portfolio | 3.0m $474.0m | Reduced -1.3m |
| MORGAN STANLEY 0.03% of their portfolio | 2.6m $414.5m | Reduced -41.9k |
| FARALLON CAPITAL MANAGEMENT, L.L.C. 2.14% of their portfolio | 2.3m $362.6m | Reduced -158.5k |
| Bank of New York Mellon Corp 0.06% of their portfolio | 2.1m $336.6m | Added +63.6k |
| WELLINGTON MANAGEMENT GROUP LLP 0.06% of their portfolio | 2.1m $325.7m | Reduced -1.2m |
| T. Rowe Price Investment Management, Inc. 0.20% of their portfolio | 2.0m $309.5m | Added +27.1k |
| FMR LLC 0.02% of their portfolio | 1.9m $294.0m | Added +512.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 1.7m $261.1m | Added +131.7k |
| DEUTSCHE BANK AG\ 0.11% of their portfolio | 1.6m $248.6m | Added +113.1k |
| EcoR1 Capital, LLC 6.80% of their portfolio | 1.4m $222.4m | Reduced -512.5k |
| Casdin Capital, LLC 12.95% of their portfolio | 1.1m $169.6m | Added +4.5k |
| Pictet Asset Management Holding SA 0.17% of their portfolio | 957.2k $151.2m | Reduced -301.3k |
| Paradigm Biocapital Advisors LP 5.73% of their portfolio | 947.6k $149.7m | Reduced -130.8k |
| NORGES BANK 0.02% of their portfolio | 924.4k $146.1m | Reduced -44.4k |
| JANE STREET GROUP, LLC 0.15% of their portfolio | 869.1k $137.3m | Added +591.0k |
| CITADEL ADVISORS LLC 0.12% of their portfolio | 775.8k $122.6m | Reduced -747.3k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 721.4k $114.0m | Added +67.9k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.45% of their portfolio | 690.4k $109.1m | Added +110.8k |
| NORTHERN TRUST CORP 0.02% of their portfolio | 668.1k $105.6m | Added +237.3k |
| Boxer Capital, LLC 5.41% of their portfolio | 650.0k $102.7m | Unchanged |
| ORBIMED ADVISORS LLC 2.03% of their portfolio | 646.0k $102.1m | Reduced -51.5k |
| Thrivent Financial for Lutherans 0.21% of their portfolio | 644.7k $101.9m | Added +37.9k |
| TWO SIGMA ADVISERS, LP 0.21% of their portfolio | 606.8k $95.9m | Reduced -54.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio | 604.8k $95.6m | Added +15.3k |
| MILLENNIUM MANAGEMENT LLC 0.07% of their portfolio | 572.3k $90.4m | Reduced -301.9k |
| ALKEON CAPITAL MANAGEMENT LLC 0.45% of their portfolio | 558.8k $88.3m | Added +100.0k |
| TWO SIGMA INVESTMENTS, LP 0.20% of their portfolio | 541.8k $85.6m | Added +199.1k |
| Balyasny Asset Management L.P. 0.22% of their portfolio | 532.9k $84.2m | Added +23.7k |
| Erste Asset Management GmbH 1.09% of their portfolio | 521.4k $82.4m | Reduced -50.0k |
| FEDERATED HERMES, INC. 0.19% of their portfolio | 508.3k $80.3m | Reduced -101.9k |
| ROYAL BANK OF CANADA 0.02% of their portfolio | 495.5k $78.3m | Added +34.9k |
| Nuveen Asset Management, LLC 0.02% of their portfolio | 483.2k $76.4m | Reduced -59.3k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 439.6k $69.5m | Added +189.5k |
| EAGLE ASSET MANAGEMENT INC 0.34% of their portfolio | 406.0k $63.6m | Added +192.6k |
| BARCLAYS PLC 0.03% of their portfolio | 400.9k $63.3m | Added +15.4k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.12% of their portfolio | 400.0k $63.2m | Reduced -70.0k |
| Man Group plc 0.16% of their portfolio | 386.4k $61.1m | Added +266.4k |
| Fiera Capital Corp 0.19% of their portfolio | 382.6k $60.5m | Added +15.6k |
| Invesco Ltd. 0.01% of their portfolio | 380.4k $60.1m | Added +275.4k |
| PRINCIPAL FINANCIAL GROUP INC 0.03% of their portfolio | 363.0k $57.4m | Added +317.3k |
| Assenagon Asset Management S.A. 0.14% of their portfolio | 359.7k $56.8m | Reduced -78.0k |
| RENAISSANCE TECHNOLOGIES LLC 0.09% of their portfolio | 352.0k $55.6m | Reduced -38.3k |
| UBS Group AG 0.02% of their portfolio | 350.8k $55.4m | Added +73.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 340.0k $53.7m | Reduced -164.9k |
| Amundi 0.02% of their portfolio | 333.0k $51.0m | Reduced -65.3k |
| Aberdeen Group plc 0.10% of their portfolio | 329.8k $52.1m | Added +138.0k |
| MIZUHO MARKETS AMERICAS LLC 1.42% of their portfolio | 326.3k $51.6m | Added +35.5k |
| VOYA INVESTMENT MANAGEMENT LLC 0.05% of their portfolio | 322.8k $51.0m | Reduced -14.8k |
| FRED ALGER MANAGEMENT, LLC 0.24% of their portfolio | 318.3k $50.3m | Added +60.7k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 308.4k $48.7m | Added +77.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 301.5k $47.6m | Added +140.5k |
| Logos Global Management LP 2.75% of their portfolio | 300.0k $47.4m | Reduced -100.0k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.17% of their portfolio | 288.6k $45.6m | Reduced -141.9k |
| Rock Springs Capital Management LP 1.35% of their portfolio | 284.0k $44.9m | Reduced -43.6k |
| RHUMBLINE ADVISERS 0.04% of their portfolio | 270.9k $42.8m | Added +160.9k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 255.4k $40.4m | Added +31.1k |
| BANK OF NOVA SCOTIA 0.08% of their portfolio | 252.8k $39.9m | Reduced -168.7k |
| Bellevue Group AG 0.65% of their portfolio | 252.3k $39.9m | Added +800 |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 243.6k $38.5m | Added +10.4k |
| Clearbridge Investments, LLC 0.03% of their portfolio | 237.4k $37.5m | Added +86.1k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.04% of their portfolio | 230.3k $36.4m | Reduced -10.2k |
| EVENTIDE ASSET MANAGEMENT, LLC 0.62% of their portfolio | 228.5k $36.1m | Added +93.1k |
| Caption Management, LLC 3.80% of their portfolio | 227.0k $35.9m | Added +76.7k |
| Ensign Peak Advisors, Inc 0.07% of their portfolio | 225.3k $35.6m | Added +38.1k |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 214.4k $33.9m | Reduced -103.9k |
| Ikarian Capital, LLC 10.04% of their portfolio | 203.6k $32.2m | Added +51.3k |
| Palo Alto Investors LP 3.69% of their portfolio | 201.7k $31.9m | Added +418 |
| Sofinnova Investments, Inc. 1.95% of their portfolio | 195.9k $30.9m | Reduced -31.6k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.05% of their portfolio | 194.8k $30.8m | Reduced -86.9k |
| First Turn Management, LLC 4.67% of their portfolio | 181.7k $28.7m | Reduced -40.1k |
| BANK OF MONTREAL /CAN/ 0.01% of their portfolio | 177.9k $29.6m | Added +1.1k |
| BLAIR WILLIAM & CO/IL 0.08% of their portfolio | 174.3k $27.5m | Added +131.1k |
| Swiss National Bank 0.02% of their portfolio | 166.1k $26.2m | Reduced -100 |
| TD Asset Management Inc 0.02% of their portfolio | 159.1k $25.1m | Reduced -17.5k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.03% of their portfolio | 158.5k $25.0m | Reduced -2.2k |
| California Public Employees Retirement System 0.02% of their portfolio | 151.9k $24.0m | Added +28.1k |
| Camber Capital Management LP 0.91% of their portfolio | 150.0k $23.7m | Reduced -435.0k |
| Cubist Systematic Strategies, LLC 0.41% of their portfolio | 148.1k $23.4m | Added +54.5k |
| Rafferty Asset Management, LLC 0.09% of their portfolio | 146.6k $23.2m | Added +72.8k |
| C WorldWide Group Holding A/S 0.24% of their portfolio | 140.3k $22.2m | Unchanged |
| Legal & General Group Plc 0.01% of their portfolio | 139.2k $22.0m | Added +50.3k |
| Finepoint Capital LP 5.96% of their portfolio | 132.8k $21.0m | Reduced -25.6k |
| Candriam S.C.A. 0.12% of their portfolio | 129.0k $20.4m | Reduced -22.0k |
| Cormorant Asset Management, LP 1.15% of their portfolio | 125.0k $19.8m | New |
| Russell Investments Group, Ltd. 0.03% of their portfolio | 121.8k $19.2m | Reduced -5.7k |
| Corebridge Financial, Inc. 0.10% of their portfolio | 120.6k $19.1m | First filing |
| AXA S.A. 0.03% of their portfolio | 117.9k $18.6m | Added +59.0k |
| D. E. Shaw & Co., Inc. 0.03% of their portfolio | 117.8k $18.6m | Added +31.0k |
| ExodusPoint Capital Management, LP 0.20% of their portfolio | 117.2k $18.5m | Added +12.1k |
| Retirement Systems of Alabama 0.07% of their portfolio | 116.7k $18.4m | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 107.6k $17.0m | Reduced -11.9k |
| Simplify Asset Management Inc. 1.45% of their portfolio | 104.5k $16.5m | Added +14.0k |
| FIRST TRUST ADVISORS LP 0.02% of their portfolio | 101.9k $16.1m | New |
| BRAUN STACEY ASSOCIATES INC 0.60% of their portfolio | 98.2k $15.5m | New |