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 ($24.7m this quarter). Holder counts are more reliable. Shares outstanding: 87.8m as of 2022-10-28, 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 ≈ $129.56. Options: 28 managers hold calls ($368.4m notional), 25 hold puts ($246.3m).
Trends to Q4 2022
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 376 |
| Q4 2022 | 414 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $269.5m | $160.2m | 0.59 |
| Q4 2022 | $368.4m | $246.3m | 0.67 |
Biggest buyers
| LORD, ABBETT & CO. LLC | Added | +1.1m |
| Deep Track Capital, LP | New | +528.2k |
| JPMORGAN CHASE & CO | Added | +522.4k |
| PERCEPTIVE ADVISORS LLC | Added | +396.2k |
| CITADEL ADVISORS LLC | Added | +303.4k |
| NATIONAL BANK OF CANADA /FI/ | Added | +300.3k |
| PICTET ASSET MANAGEMENT SA | Added | +263.6k |
| ROYAL BANK OF CANADA | Added | +211.1k |
| Public Sector Pension Investment Board | Added | +203.4k |
| DEUTSCHE BANK AG\ | Added | +193.0k |
Biggest sellers
| JANUS HENDERSON GROUP PLC | Reduced | -6.9m |
| ALKEON CAPITAL MANAGEMENT LLC | Reduced | -557.8k |
| Assenagon Asset Management S.A. | Reduced | -396.5k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -382.2k |
| Balyasny Asset Management L.P. | Sold out | -368.9k |
| SANDS CAPITAL MANAGEMENT, LLC | Reduced | -331.0k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -310.7k |
| AMERICAN CENTURY COMPANIES INC | Reduced | -284.0k |
| Camber Capital Management LP | Reduced | -250.0k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Reduced | -210.0k |
Biggest calls
| GROUP ONE TRADING LLC | Added | $52.3m403.5k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $48.1m371.0k shares |
| CITADEL ADVISORS LLC | Added | $44.2m340.8k shares |
| Caption Management, LLC | Added | $38.7m298.4k shares |
| JPMORGAN CHASE & CO | Added | $36.1m278.4k shares |
| PEAK6 Investments LLC | Added | $28.8m221.9k shares |
| PURA VIDA INVESTMENTS, LLC | Unchanged | $25.9m200.0k shares |
| JANE STREET GROUP, LLC | Reduced | $18.4m141.9k shares |
| SIMPLEX TRADING, LLC | Added | $14.5m111.6k shares |
| Parallax Volatility Advisers, L.P. | Added | $9.7m74.6k shares |
Biggest puts
| Balyasny Asset Management L.P. | Added | $53.0m409.1k shares |
| Caption Management, LLC | Added | $40.1m309.3k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $25.5m196.8k shares |
| Jefferies Financial Group Inc. | New | $17.8m137.5k shares |
| CITADEL ADVISORS LLC | Added | $15.6m120.5k shares |
| WOLVERINE ASSET MANAGEMENT LLC | Unchanged | $15.1m116.8k shares |
| GROUP ONE TRADING LLC | Added | $14.9m115.2k shares |
| CAAS CAPITAL MANAGEMENT LP | Unchanged | $11.9m92.0k shares |
| Walleye Trading LLC | Reduced | $10.8m83.0k shares |
| Parallax Volatility Advisers, L.P. | Added | $10.6m81.8k 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 Q4 2022
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 |
|---|---|---|---|---|---|
| Q1 2021 | 0 | — | 0 | — | — |
| Q2 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 2 | $2.3m | 0 | — | — |
| Q1 2022 | 0 | — | 0 | — | — |
| Q2 2022 | 0 | — | 0 | — | — |
| Q3 2022 | 1 | $11.0m | 0 | — | — |
| Q4 2022 | 0 | — | 1 | $94.3k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2022-11-17 | Mayo Stephen Director | Sold | $94.3k858 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, Q4 2022
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.03% of their portfolio | 8.0m $1.0bn | Reduced -52.3k |
| JANUS HENDERSON GROUP PLC 0.56% of their portfolio | 6.0m $781.1m | Reduced -6.9m |
| BlackRock Inc. 0.02% of their portfolio | 5.5m $710.4m | Added +144.9k |
| Avoro Capital Advisors LLC 6.15% of their portfolio | 3.2m $411.4m | Unchanged |
| EcoR1 Capital, LLC 11.83% of their portfolio | 3.0m $388.7m | Unchanged |
| FMR LLC 0.03% of their portfolio | 2.7m $351.9m | Added +166.2k |
| WELLINGTON MANAGEMENT GROUP LLP 0.07% of their portfolio | 2.6m $331.0m | Reduced -4.8k |
| SANDS CAPITAL MANAGEMENT, LLC 1.05% of their portfolio | 2.2m $278.8m | Reduced -331.0k |
| LORD, ABBETT & CO. LLC 0.49% of their portfolio | 2.1m $274.6m | Added +1.1m |
| Bank of New York Mellon Corp 0.06% of their portfolio | 2.0m $258.4m | Added +110.8k |
| STATE STREET CORP 0.01% of their portfolio | 1.9m $251.6m | Added +6.8k |
| Casdin Capital, LLC 13.30% of their portfolio | 1.3m $170.4m | Added +90.0k |
| Camber Capital Management LP 5.66% of their portfolio | 1.2m $162.0m | Reduced -250.0k |
| JPMORGAN CHASE & CO 0.02% of their portfolio | 1.2m $161.1m | Added +522.4k |
| GOLDMAN SACHS GROUP INC 0.05% of their portfolio | 1.2m $160.5m | Added +102.1k |
| GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 1.2m $157.9m | Added +64.4k |
| Avidity Partners Management LP 3.19% of their portfolio | 1.1m $136.7m | Added +106.8k |
| ORBIMED ADVISORS LLC 2.41% of their portfolio | 972.3k $126.0m | Added +53.8k |
| DEUTSCHE BANK AG\ 0.07% of their portfolio | 940.1k $121.8m | Added +193.0k |
| PICTET ASSET MANAGEMENT SA 0.17% of their portfolio | 930.6k $120.6m | Added +263.6k |
| FARALLON CAPITAL MANAGEMENT, L.L.C. 0.78% of their portfolio | 928.9k $120.4m | Added +173.9k |
| NORGES BANK 0.03% of their portfolio | 863.7k $111.9m | Added +27.4k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio | 836.7k $108.4m | Reduced -382.2k |
| FEDERATED HERMES, INC. 0.28% of their portfolio | 779.4k $101.0m | Added +4.6k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.75% of their portfolio | 751.7k $97.4m | Added +156.9k |
| Assenagon Asset Management S.A. 0.39% of their portfolio | 732.5k $94.9m | Reduced -396.5k |
| RENAISSANCE TECHNOLOGIES LLC 0.13% of their portfolio | 718.9k $93.2m | Reduced -165.3k |
| FIRST TRUST ADVISORS LP 0.11% of their portfolio | 707.9k $91.7m | Reduced -209.3k |
| Thrivent Financial for Lutherans 0.24% of their portfolio | 706.1k $91.5m | Added +6.6k |
| Point72 Asset Management, L.P. 0.34% of their portfolio | 703.8k $91.2m | Reduced -148.1k |
| Bellevue Group AG 1.19% of their portfolio | 693.2k $89.8m | Reduced -62.7k |
| TWO SIGMA INVESTMENTS, LP 0.29% of their portfolio | 691.4k $89.6m | Reduced -98.3k |
| AMERICAN CENTURY COMPANIES INC 0.07% of their portfolio | 682.7k $88.5m | Reduced -284.0k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.21% of their portfolio | 675.0k $87.5m | Reduced -210.0k |
| ALKEON CAPITAL MANAGEMENT LLC 0.65% of their portfolio | 673.6k $87.3m | Reduced -557.8k |
| PERCEPTIVE ADVISORS LLC 2.42% of their portfolio | 649.2k $84.1m | Added +396.2k |
| Erste Asset Management GmbH 1.68% of their portfolio | 614.4k $79.5m | Reduced -57.5k |
| TWO SIGMA ADVISERS, LP 0.22% of their portfolio | 609.6k $79.0m | Added +75.2k |
| AMERIPRISE FINANCIAL INC 0.03% of their portfolio | 598.5k $77.6m | Reduced -176.8k |
| D. E. Shaw & Co., Inc. 0.13% of their portfolio | 582.2k $75.4m | Reduced -50.6k |
| Deep Track Capital, LP 2.98% of their portfolio | 528.2k $68.4m | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio | 516.5k $66.9m | Added +21.8k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.42% of their portfolio | 475.9k $61.7m | Reduced -26.3k |
| MORGAN STANLEY 0.01% of their portfolio | 457.1k $59.2m | Added +60.8k |
| Rock Springs Capital Management LP 1.36% of their portfolio | 436.0k $56.5m | Added +6.0k |
| BARCLAYS PLC 0.05% of their portfolio | 415.0k $53.8m | First filing |
| CITADEL ADVISORS LLC 0.06% of their portfolio | 405.5k $52.5m | Added +303.4k |
| MILLENNIUM MANAGEMENT LLC 0.06% of their portfolio | 402.0k $52.1m | Reduced -310.7k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 391.6k $50.7m | Added +6.1k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 382.9k $49.6m | Reduced -2.1k |
| Allspring Global Investments Holdings, LLC 0.08% of their portfolio | 377.3k $48.9m | Added +112.6k |
| Nuveen Asset Management, LLC 0.02% of their portfolio | 349.6k $45.3m | Added +22.8k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 305.3k $39.6m | Added +211.1k |
| NATIONAL BANK OF CANADA /FI/ 0.11% of their portfolio | 300.5k $38.9m | Added +300.3k |
| CREDIT SUISSE AG/ 0.04% of their portfolio | 275.7k $35.7m | Reduced -11.6k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.37% of their portfolio | 261.7k $33.9m | Reduced -22.3k |
| Sofinnova Investments, Inc. 1.95% of their portfolio | 248.0k $32.1m | Added +106.5k |
| Public Sector Pension Investment Board 0.24% of their portfolio | 233.0k $30.2m | Added +203.4k |
| Invesco Ltd. 0.01% of their portfolio | 220.9k $28.6m | Added +47.1k |
| Logos Global Management LP 3.34% of their portfolio | 220.0k $28.5m | Reduced -130.0k |
| Squarepoint Ops LLC 0.18% of their portfolio | 206.5k $26.8m | Added +64.4k |
| Cormorant Asset Management, LP 1.74% of their portfolio | 200.0k $25.9m | Unchanged |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 192.9k $25.0m | Added +3.8k |
| MIZUHO MARKETS AMERICAS LLC 1.69% of their portfolio | 192.4k $24.9m | New |
| California Public Employees Retirement System 0.02% of their portfolio | 192.2k $24.9m | Added +947 |
| Swiss National Bank 0.02% of their portfolio | 190.3k $24.7m | Reduced -6.8k |
| MARSHALL WACE, LLP 0.06% of their portfolio | 186.0k $24.1m | New |
| JANE STREET GROUP, LLC 0.04% of their portfolio | 174.2k $22.6m | Added +85.3k |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 1.58% of their portfolio | 167.0k $21.6m | New |
| UBS Group AG 0.01% of their portfolio | 162.7k $21.1m | Added +91.9k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.12% of their portfolio | 160.9k $20.8m | Added +95.1k |
| ExodusPoint Capital Management, LP 0.31% of their portfolio | 157.0k $20.3m | Added +129.5k |
| Russell Investments Group, Ltd. 0.04% of their portfolio | 155.8k $20.2m | Added +10.1k |
| Ensign Peak Advisors, Inc 0.04% of their portfolio | 147.4k $19.1m | Added +16.8k |
| Schonfeld Strategic Advisors LLC 0.16% of their portfolio | 145.8k $18.9m | Added +75.2k |
| Tekla Capital Management LLC 0.69% of their portfolio | 141.0k $18.3m | Reduced -25.0k |
| BRAIDWELL LP 0.61% of their portfolio | 140.4k $18.2m | First filing |
| Cubist Systematic Strategies, LLC 0.16% of their portfolio | 139.4k $18.1m | Reduced -62.5k |
| Finepoint Capital LP 5.51% of their portfolio | 131.5k $17.0m | New |
| Senator Investment Group LP 1.46% of their portfolio | 125.0k $16.2m | Not comparable |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 121.3k $15.7m | Added +1.3k |
| C WorldWide Group Holding A/S 0.21% of their portfolio | 120.3k $15.6m | Unchanged |
| Tri Locum Partners LP 6.86% of their portfolio | 119.7k $15.5m | Added +24.2k |
| Connor, Clark & Lunn Investment Management Ltd. 0.09% of their portfolio | 116.3k $15.1m | Reduced -41.4k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 116.3k $15.1m | Added +1.3k |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 108.7k $14.1m | Reduced -30.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.03% of their portfolio | 107.9k $14.0m | Added +52.3k |
| Iron Triangle Partners LP 2.50% of their portfolio | 107.7k $14.0m | Reduced -42.3k |
| PUTNAM INVESTMENTS LLC 0.02% of their portfolio | 107.3k $13.9m | Reduced -7 |
| NATIXIS 0.08% of their portfolio | 107.3k $13.9m | Reduced -30.2k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio | 106.9k $13.9m | Reduced -2.6k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 100.8k $13.1m | Added +7.0k |
| PINNACLE ASSOCIATES LTD 0.28% of their portfolio | 99.4k $12.9m | Reduced -2.2k |
| AXA S.A. 0.05% of their portfolio | 97.6k $12.6m | Reduced -98.6k |
| Candriam S.C.A. 0.08% of their portfolio | 95.1k $12.3m | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio | 91.2k $11.8m | Added +1.0k |
| Nicholas Investment Partners, LP 1.03% of their portfolio | 90.4k $11.7m | New |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.03% of their portfolio | 89.1k $11.5m | Reduced -1.1k |
| Mirae Asset Global Investments Co., Ltd. 0.03% of their portfolio | 88.4k $11.5m | Reduced -37.1k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.19% of their portfolio | 86.0k $11.1m | Reduced -13.5k |