PTC THERAPEUTICS INC PTCT
COM · Common Stock · CUSIP 69366J200 · ISIN US69366J2006
Pharmaceutical company
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersWarren, NJ
- Founded1998
- Websiteptcbio.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 ($569.0k this quarter). Holder counts are more reliable. Shares outstanding: 74.2m as of 2023-04-25, 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 ≈ $48.48. Options: 13 managers hold calls ($15.7m notional), 11 hold puts ($10.1m).
Trends to Q1 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 213 |
| Q4 2022 | 203 |
| Q1 2023 | 203 |
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 | 93 | 118 |
| Q1 2023 | 108 | 98 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $8.9m | $11.4m | 1.27 |
| Q4 2022 | $15.3m | $5.6m | 0.37 |
| Q1 2023 | $15.7m | $10.1m | 0.64 |
Biggest buyers
| FMR LLC | Added | +8.4m |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | New | +1.8m |
| RTW INVESTMENTS, LP | Added | +1.5m |
| JANUS HENDERSON GROUP PLC | Added | +1.2m |
| Sofinnova Investments, Inc. | New | +517.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +433.4k |
| PICTET ASSET MANAGEMENT SA | Added | +343.9k |
| Woodline Partners LP | Added | +309.2k |
| VANGUARD GROUP INC | Added | +248.3k |
| Holocene Advisors, LP | New | +242.6k |
Biggest sellers
| STATE STREET CORP | Reduced | -533.4k |
| ARMISTICE CAPITAL, LLC | Reduced | -472.0k |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -433.2k |
| BlackRock Inc. | Reduced | -315.6k |
| GREAT POINT PARTNERS LLC | Sold out | -302.1k |
| MILLENNIUM MANAGEMENT LLC | Sold out | -299.1k |
| Camber Capital Management LP | Reduced | -250.0k |
| D. E. Shaw & Co., Inc. | Reduced | -239.4k |
| Man Group plc | Sold out | -189.6k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Reduced | -158.5k |
Biggest calls
| BOOTHBAY FUND MANAGEMENT, LLC | New | $4.3m88.0k shares |
| JANE STREET GROUP, LLC | Added | $3.2m66.9k shares |
| CITADEL ADVISORS LLC | Reduced | $1.5m30.4k shares |
| MILLENNIUM MANAGEMENT LLC | New | $1.5m30.0k shares |
| CITIGROUP INC | Reduced | $1.4m29.8k shares |
| SIMPLEX TRADING, LLC | Added | $1.1m23.4k shares |
| GROUP ONE TRADING LLC | Added | $1.1m22.5k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $678.2k14.0k shares |
| Ikarian Capital, LLC | New | $474.7k9.8k shares |
| WOLVERINE TRADING, LLC | New | $254.0k5.2k shares |
Biggest puts
| BOOTHBAY FUND MANAGEMENT, LLC | New | $4.4m91.3k shares |
| CITIGROUP INC | Reduced | $1.4m29.8k shares |
| SIMPLEX TRADING, LLC | Added | $1.4m28.9k shares |
| CITADEL ADVISORS LLC | Added | $1.3m26.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $406.9k8.4k shares |
| Walleye Capital LLC | New | $285.8k5.9k shares |
| JANE STREET GROUP, LLC | Reduced | $276.1k5.7k shares |
| Walleye Trading LLC | New | $256.7k5.3k shares |
| WOLVERINE TRADING, LLC | New | $249.0k5.1k shares |
| Worth Venture Partners, LLC | New | $63.4k12.8k 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 +6.8 pts · filed 2025-12-04 | 14.8% |
| JANUS HENDERSON GROUP PLC 13G · institution +2.7 pts · filed 2026-05-15 | 8.7% |
| ARMISTICE CAPITAL, LLC 13G · institution -1.4 pts · filed 2025-05-15 | 6.9% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.9% |
| STATE STREET CORP 13G · institution new · filed 2026-02-09 | 5.2% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.2% |
Fell to 5% or below in the last year: TORONTO DOMINION BANK (3.7%, 2026-05-15), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC), WELLINGTON MANAGEMENT GROUP LLP (4.8%, 2026-02-10)
Insider purchases and sales in Q1 2023
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 |
|---|---|---|---|---|---|
| Q2 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 0 | — | — |
| Q1 2022 | 0 | — | 8 | $2.2m | — |
| Q2 2022 | 0 | — | 5 | $210.8k | — |
| Q3 2022 | 0 | — | 2 | $183.2k | — |
| Q4 2022 | 0 | — | 1 | $379.6k | — |
| Q1 2023 | 0 | — | 8 | $3.5m | $2.3m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-03-31 | SOUTHWELL DAVID P Director | Sold plan | $128.7k2.6k shares |
| 2023-03-29 | Utter Christine Marie SVP, FINANCE & CAO | Sold plan | $224.1k4.7k shares |
| 2023-03-27 | Utter Christine Marie SVP, FINANCE & CAO | Sold plan | $1.2m26.7k shares |
| 2023-03-27 | SOUTHWELL DAVID P Director | Sold plan | $450.9k10.0k shares |
| 2023-03-27 | Hill Emily Luisa CHIEF FINANCIAL OFFICER | Sold plan | $331.3k7.4k shares |
| 2023-01-31 | Peltz Stuart Walter CHIEF EXECUTIVE OFFICER, director | Sold | $105.9k2.3k shares |
| 2023-01-31 | Boulding Mark Elliott EXEC. VP AND CLO | Sold | $37.1k812 shares |
| 2023-01-31 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER | Sold | $28.7k630 shares |
| 2023-01-31 | Hill Emily Luisa CHIEF FINANCIAL OFFICER | Sold | $26.2k575 shares |
| 2023-01-31 | Pauwels Eric CHIEF BUSINESS OFFICER | Sold | $17.1k375 shares |
| 2023-01-31 | Utter Christine Marie SVP, FINANCE & CAO | Sold | $14.8k325 shares |
| 2023-01-31 | Peltz Stuart Walter CHIEF EXECUTIVE OFFICER, director · By Spouse | Sold | $13.7k301 shares |
| 2023-01-31 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER · By Spouse | Sold | $1.3k28 shares |
| 2023-01-24 | Pauwels Eric CHIEF BUSINESS OFFICER | Sold | $17.0k359 shares |
| 2023-01-24 | Peltz Stuart Walter CHIEF EXECUTIVE OFFICER, director · By Spouse | Sold | $13.5k284 shares |
| 2023-01-24 | Hill Emily Luisa CHIEF FINANCIAL OFFICER | Sold | $10.6k223 shares |
| 2023-01-24 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER · By Spouse | Sold | $2.1k44 shares |
| 2023-01-11 | Klein Matthew B. CHIEF OPERATING OFFICER | Sold | $99.5k2.2k shares |
| 2023-01-11 | Peltz Stuart Walter CHIEF EXECUTIVE OFFICER, director | Sold | $52.7k1.2k shares |
| 2023-01-11 | Pauwels Eric CHIEF BUSINESS OFFICER | Sold | $25.3k571 shares |
| 2023-01-11 | Boulding Mark Elliott EXEC. VP AND CLO | Sold | $22.0k495 shares |
| 2023-01-11 | Peltz Stuart Walter CHIEF EXECUTIVE OFFICER, director · By Spouse | Sold | $21.8k492 shares |
| 2023-01-11 | Hill Emily Luisa CHIEF FINANCIAL OFFICER | Sold | $18.5k418 shares |
| 2023-01-11 | Utter Christine Marie SVP, FINANCE & CAO | Sold | $18.5k417 shares |
| 2023-01-11 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER | Sold | $17.0k383 shares |
| 2023-01-11 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER · By Spouse | Sold | $1.2k27 shares |
| 2023-01-10 | Klein Matthew B. CHIEF OPERATING OFFICER | Sold | $97.6k2.3k shares |
| 2023-01-10 | Peltz Stuart Walter CHIEF EXECUTIVE OFFICER, director | Sold | $52.7k1.2k shares |
| 2023-01-10 | Pauwels Eric CHIEF BUSINESS OFFICER | Sold | $28.5k663 shares |
| 2023-01-10 | Boulding Mark Elliott EXEC. VP AND CLO | Sold | $25.3k590 shares |
The latest 30 of 44 trades.
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, Q1 2023
| Manager | Shares | Change |
|---|---|---|
| FMR LLC 0.04% of their portfolio | 19.2m $928.4m | Added +8.4m |
| VANGUARD GROUP INC 0.01% of their portfolio | 7.6m $367.6m | Added +248.3k |
| RTW INVESTMENTS, LP 7.16% of their portfolio | 7.1m $343.6m | Added +1.5m |
| WELLINGTON MANAGEMENT GROUP LLP 0.07% of their portfolio | 7.0m $339.0m | Reduced -433.2k |
| BlackRock Inc. 0.01% of their portfolio | 6.3m $303.7m | Reduced -315.6k |
| FRANKLIN RESOURCES INC 0.08% of their portfolio | 3.4m $166.9m | Reduced -43.9k |
| JANUS HENDERSON GROUP PLC 0.10% of their portfolio | 3.2m $154.8m | Added +1.2m |
| ARMISTICE CAPITAL, LLC 3.29% of their portfolio | 2.9m $141.6m | Reduced -472.0k |
| STATE STREET CORP 0.01% of their portfolio | 2.9m $140.7m | Reduced -533.4k |
| Camber Capital Management LP 4.13% of their portfolio | 2.5m $121.1m | Reduced -250.0k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.20% of their portfolio | 1.8m $89.5m | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 1.7m $83.2m | Added +433.4k |
| MACQUARIE GROUP LTD 0.09% of their portfolio | 1.6m $79.6m | Added +76.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.4m $67.1m | Added +58.8k |
| LOOMIS SAYLES & CO L P 0.10% of their portfolio | 1.2m $59.6m | Added +4.8k |
| Blackstone Inc. 0.22% of their portfolio | 1.1m $53.1m | Unchanged |
| Bank of New York Mellon Corp 0.01% of their portfolio | 965.3k $46.8m | Reduced -14.2k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 868.5k $42.1m | Added +6.7k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.21% of their portfolio | 722.9k $35.0m | Reduced -158.5k |
| D. E. Shaw & Co., Inc. 0.06% of their portfolio | 705.5k $34.2m | Reduced -239.4k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 656.9k $31.8m | Added +5.2k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.10% of their portfolio | 605.1k $29.3m | Reduced -25.2k |
| TimesSquare Capital Management, LLC 0.43% of their portfolio | 601.1k $29.1m | Reduced -58.5k |
| NORGES BANK 0.01% of their portfolio | 570.5k $27.6m | Reduced -73.7k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 558.3k $27.0m | Reduced -1.7k |
| Sofinnova Investments, Inc. 1.70% of their portfolio | 517.1k $25.0m | New |
| PICTET ASSET MANAGEMENT SA 0.03% of their portfolio | 509.5k $24.7m | Added +343.9k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 452.7k $21.9m | Reduced -80.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 446.4k $21.6m | Added +66.3k |
| Woodline Partners LP 0.29% of their portfolio | 421.4k $20.4m | Added +309.2k |
| PANAGORA ASSET MANAGEMENT INC 0.10% of their portfolio | 339.4k $16.4m | Added +36.3k |
| TWO SIGMA ADVISERS, LP 0.04% of their portfolio | 328.6k $15.9m | Added +9.7k |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 324.9k $15.7m | Reduced -23.5k |
| Candriam S.C.A. 0.09% of their portfolio | 277.7k $12.4m | Added +75.0k |
| Invesco Ltd. 0.00% of their portfolio | 249.1k $12.1m | Added +28.3k |
| Redwood Investments, LLC 1.50% of their portfolio | 242.6k $11.8m | Added +60.0k |
| Holocene Advisors, LP 0.06% of their portfolio | 242.6k $11.8m | New |
| Russell Investments Group, Ltd. 0.02% of their portfolio | 239.9k $11.6m | Reduced -5.7k |
| SECTORAL ASSET MANAGEMENT INC 2.11% of their portfolio | 226.6k $11.0m | Reduced -925 |
| MORGAN STANLEY 0.00% of their portfolio | 225.9k $10.9m | Reduced -71.8k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 209.3k $10.1m | Added +14.1k |
| Handelsbanken Fonder AB 0.05% of their portfolio | 192.0k $9.3m | Reduced -42.0k |
| Integral Health Asset Management, LLC 1.79% of their portfolio | 178.0k $8.6m | Added +78.0k |
| PINNACLE ASSOCIATES LTD 0.17% of their portfolio | 170.1k $8.2m | Reduced -2.5k |
| SPHERA FUNDS MANAGEMENT LTD. 1.67% of their portfolio | 159.1k $7.7m | New |
| Rafferty Asset Management, LLC 0.05% of their portfolio | 157.4k $7.6m | Reduced -54.0k |
| Fisher Asset Management, LLC 0.00% of their portfolio | 157.1k $7.6m | Reduced -43.8k |
| Alyeska Investment Group, L.P. 0.06% of their portfolio | 150.0k $7.3m | New |
| Swiss National Bank 0.00% of their portfolio | 139.6k $6.8m | Reduced -15.9k |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 134.1k $6.5m | Reduced -107.1k |
| California Public Employees Retirement System 0.01% of their portfolio | 133.5k $6.5m | Reduced -25.0k |
| CITIGROUP INC 0.01% of their portfolio | 126.1k $6.1m | Added +25.8k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 122.3k $5.9m | Added +79.3k |
| Legal & General Group Plc 0.00% of their portfolio | 109.4k $5.3m | Added +23.5k |
| Brookfield Corp /ON/ 0.02% of their portfolio | 104.3k $5.1m | Reduced -5.4k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 103.4k $5.0m | Added +1.7k |
| Phocas Financial Corp. 0.71% of their portfolio | 101.9k $4.9m | Added +32.0k |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 0.05% of their portfolio | 98.1k $4.8m | Reduced -12.2k |
| INTERNATIONAL BIOTECHNOLOGY TRUST PLC 1.26% of their portfolio | 93.0k $4.5m | Reduced -51.0k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.10% of their portfolio | 91.5k $4.4m | Reduced -29.4k |
| Balyasny Asset Management L.P. 0.01% of their portfolio | 91.4k $4.4m | Reduced -9.5k |
| BARCLAYS PLC 0.00% of their portfolio | 85.1k $4.1m | Reduced -46.9k |
| Walleye Capital LLC 0.08% of their portfolio | 83.7k $4.1m | Reduced -11.5k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 83.0k $4.0m | Reduced -1.1k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 81.1k $3.9m | Added +29.1k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 78.9k $3.8m | Added +11.9k |
| UBS Group AG 0.00% of their portfolio | 76.8k $3.7m | Reduced -32.0k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 73.5k $3.6m | Added +5.6k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 70.7k $3.4m | Reduced -5.8k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 67.0k $3.2m | Added +4.6k |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 65.2k $3.2m | Added +4.1k |
| PDT Partners, LLC 0.41% of their portfolio | 63.0k $3.0m | Added +69 |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 59.7k $2.9m | Reduced -4.9k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 57.0k $2.8m | Added +10.0k |
| SECTOR GAMMA AS 0.64% of their portfolio | 54.9k $2.7m | Reduced -31.8k |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 0.06% of their portfolio | 54.8k $2.7m | New |
| George Kaiser Family Foundation 1.11% of their portfolio | 53.6k $6.9m | Reduced -97 |
| Endurant Capital Management LP 1.32% of their portfolio | 53.2k $2.6m | Added +35.4k |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 52.5k $2.5m | Reduced -6.6k |
| Hillsdale Investment Management Inc. 0.21% of their portfolio | 50.6k $2.5m | Reduced -47.7k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.06% of their portfolio | 49.9k $2.4m | New |
| Erste Asset Management GmbH 0.05% of their portfolio | 48.6k $2.4m | Unchanged |
| PUTNAM INVESTMENTS LLC 0.00% of their portfolio | 48.2k $2.3m | Reduced -12.2k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 48.0k $2.3m | Reduced -14.7k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 43.0k $2.1m | Added +5.1k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 40.9k $2.0m | Added +21.4k |
| TD Asset Management Inc 0.00% of their portfolio | 40.3k $1.9m | Added +21.4k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 39.9k $1.9m | Added +38.8k |
| Motley Fool Asset Management LLC 0.21% of their portfolio | 39.8k $1.9m | Reduced -3.1k |
| Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio | 38.2k $1.8m | Added +5.8k |
| MetLife Investment Management, LLC 0.01% of their portfolio | 37.2k $1.8m | Unchanged |
| Skandinaviska Enskilda Banken AB (publ) 0.01% of their portfolio | 35.9k $1.7m | Reduced -1.7k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.01% of their portfolio | 35.0k $1.7m | Unchanged |
| EVENTIDE ASSET MANAGEMENT, LLC 0.03% of their portfolio | 34.0k $1.6m | New |
| AMERICAN INTERNATIONAL GROUP, INC. 0.01% of their portfolio | 33.9k $1.6m | Added +674 |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 32.4k $1.6m | Reduced -42.9k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 32.1k $1.6m | Added +24.6k |
| PROFUND ADVISORS LLC 0.09% of their portfolio | 29.3k $1.4m | New |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 29.1k $1.4m | Reduced -157.1k |
| MOORE CAPITAL MANAGEMENT, LP 0.04% of their portfolio | 28.5k $1.4m | Reduced -1.5k |