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 ($2.2m this quarter). Holder counts are more reliable. Shares outstanding: 75.5m as of 2023-10-24, 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 ≈ $27.60. Options: 10 managers hold calls ($11.8m notional), 7 hold puts ($3.4m).
Trends to Q4 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 213 |
| Q4 2022 | 203 |
| Q1 2023 | 203 |
| Q2 2023 | 207 |
| Q3 2023 | 182 |
| Q4 2023 | 174 |
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 |
| Q2 2023 | 112 | 95 |
| Q3 2023 | 104 | 105 |
| Q4 2023 | 93 | 87 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2023 | $15.7m | $10.1m | 0.64 |
| Q2 2023 | $18.4m | $4.8m | 0.26 |
| Q3 2023 | $8.5m | $10.7m | 1.27 |
| Q4 2023 | $11.8m | $3.4m | 0.29 |
Biggest buyers
| COWEN AND COMPANY, LLC | Added | +2.9m |
| MORGAN STANLEY | Added | +2.1m |
| STATE STREET CORP | Added | +1.5m |
| TANG CAPITAL MANAGEMENT LLC | New | +900.0k |
| VANGUARD GROUP INC | Added | +855.4k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Added | +742.2k |
| ARMISTICE CAPITAL, LLC | Added | +714.0k |
| BlackRock Inc. | Added | +699.7k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Added | +646.5k |
| JANE STREET GROUP, LLC | Added | +638.1k |
Biggest sellers
| FMR LLC | Reduced | -6.7m |
| MACQUARIE GROUP LTD | Reduced | -1.7m |
| FRANKLIN RESOURCES INC | Reduced | -630.9k |
| AMERIPRISE FINANCIAL INC | Reduced | -562.3k |
| Man Group plc | Sold out | -523.8k |
| GREAT POINT PARTNERS LLC | Sold out | -500.0k |
| JANUS HENDERSON GROUP PLC | Reduced | -459.7k |
| Alyeska Investment Group, L.P. | Sold out | -360.0k |
| SECTORAL ASSET MANAGEMENT INC | Sold out | -187.0k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | Reduced | -155.1k |
Biggest calls
| Caption Management, LLC | Added | $4.4m160.2k shares |
| SIMPLEX TRADING, LLC | Added | $3.2m116.6k shares |
| Parallax Volatility Advisers, L.P. | Unchanged | $1.2m45.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.0m36.6k shares |
| JANE STREET GROUP, LLC | Reduced | $700.0k25.4k shares |
| CITADEL ADVISORS LLC | Added | $567.7k20.6k shares |
| Jefferies Financial Group Inc. | Reduced | $369.3k13.4k shares |
| GROUP ONE TRADING LLC | Reduced | $148.8k5.4k shares |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | Not comparable | $118.8k50.0k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| Caption Management, LLC | New | $1.7m60.0k shares |
| WOLVERINE ASSET MANAGEMENT LLC | Added | $992.2k36.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $418.9k15.2k shares |
| CITADEL ADVISORS LLC | Added | $223.2k8.1k shares |
| SIMPLEX TRADING, LLC | Reduced | $66.0k2.4k shares |
| GROUP ONE TRADING LLC | Reduced | $24.8k900 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 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 Q4 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 |
|---|---|---|---|---|---|
| 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 |
| Q2 2023 | 0 | — | 8 | $7.3m | $7.3m |
| Q3 2023 | 0 | — | 1 | $465.0k | — |
| Q4 2023 | 1 | $198.7k | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-12-12 | Gravier Pierre CHIEF FINANCIAL OFFICER | Bought | $198.7k7.7k 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 2023
| Manager | Shares | Change |
|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP 0.05% of their portfolio | 9.8m $270.5m | Added +380.4k |
| VANGUARD GROUP INC 0.01% of their portfolio | 8.8m $242.6m | Added +855.4k |
| BlackRock Inc. 0.01% of their portfolio | 7.6m $210.4m | Added +699.7k |
| RTW INVESTMENTS, LP 3.20% of their portfolio | 7.4m $204.6m | Added +188.8k |
| ARMISTICE CAPITAL, LLC 5.02% of their portfolio | 6.9m $189.2m | Added +714.0k |
| STATE STREET CORP 0.01% of their portfolio | 4.6m $127.7m | Added +1.5m |
| Camber Capital Management LP 3.85% of their portfolio | 4.0m $110.2m | Added +600.0k |
| COWEN AND COMPANY, LLC 6.73% of their portfolio | 3.7m $102.7m | Added +2.9m |
| JANUS HENDERSON GROUP PLC 0.04% of their portfolio | 2.6m $72.0m | Reduced -459.7k |
| MORGAN STANLEY 0.00% of their portfolio | 2.5m $68.7m | Added +2.1m |
| FMR LLC 0.00% of their portfolio | 1.8m $50.0m | Reduced -6.7m |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.6m $44.4m | Added +89.4k |
| FRANKLIN RESOURCES INC 0.02% of their portfolio | 1.4m $39.3m | Reduced -630.9k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.4m $38.5m | Added +515.6k |
| D. E. Shaw & Co., Inc. 0.05% of their portfolio | 1.3m $37.1m | Added +506.2k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.18% of their portfolio | 1.3m $36.5m | Added +200.7k |
| Blackstone Inc. 0.14% of their portfolio | 1.1m $30.2m | Unchanged |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 998.3k $27.5m | Reduced -104.1k |
| TANG CAPITAL MANAGEMENT LLC 2.29% of their portfolio | 900.0k $24.8m | New |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.05% of their portfolio | 892.2k $24.6m | Added +742.2k |
| Pictet Asset Management Holding SA 0.03% of their portfolio | 866.6k $23.9m | Added +62.2k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.09% of their portfolio | 819.7k $22.6m | Added +646.5k |
| JANE STREET GROUP, LLC 0.03% of their portfolio | 817.9k $22.5m | Added +638.1k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 688.8k $19.0m | Reduced -2.3k |
| RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio | 622.9k $17.2m | Added +388.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 610.9k $16.8m | Added +14.2k |
| NORGES BANK 0.00% of their portfolio | 546.4k $15.1m | Added +12.5k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 526.5k $14.5m | Added +186.6k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 510.6k $14.1m | Added +403.7k |
| Rockefeller Capital Management L.P. 0.05% of their portfolio | 501.2k $13.8m | Added +123.2k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.03% of their portfolio | 404.2k $11.1m | Reduced -155.1k |
| BNP PARIBAS FINANCIAL MARKETS 0.02% of their portfolio | 371.6k $10.2m | Added +269.3k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 353.6k $9.7m | Added +222.5k |
| Rafferty Asset Management, LLC 0.04% of their portfolio | 340.0k $9.4m | Added +133.7k |
| Invesco Ltd. 0.00% of their portfolio | 313.2k $8.6m | Added +104.5k |
| PANAGORA ASSET MANAGEMENT INC 0.05% of their portfolio | 303.0k $8.3m | Reduced -1.4k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 292.4k $8.1m | Added +82.9k |
| Candriam S.C.A. 0.06% of their portfolio | 291.7k $8.0m | Unchanged |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 290.9k $8.0m | Added +165.5k |
| UBS Group AG 0.00% of their portfolio | 288.7k $8.0m | Added +210.9k |
| Jefferies Financial Group Inc. 0.12% of their portfolio | 276.9k $7.6m | Added +8.8k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 265.9k $7.3m | Reduced -113.2k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 258.5k $7.1m | Reduced -49.1k |
| BARCLAYS PLC 0.00% of their portfolio | 253.3k $7.0m | Added +110.7k |
| Assenagon Asset Management S.A. 0.02% of their portfolio | 242.7k $6.7m | Added +190.6k |
| Trexquant Investment LP 0.14% of their portfolio | 232.7k $6.4m | New |
| Woodline Partners LP 0.07% of their portfolio | 226.9k $6.3m | New |
| Cubist Systematic Strategies, LLC 0.07% of their portfolio | 216.4k $6.0m | New |
| CITIGROUP INC 0.01% of their portfolio | 215.0k $5.9m | Added +7.9k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 191.1k $5.3m | Reduced -29.3k |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 189.8k $5.2m | Reduced -14.3k |
| PDT Partners, LLC 0.53% of their portfolio | 175.5k $4.8m | Added +111.1k |
| PINNACLE ASSOCIATES LTD 0.07% of their portfolio | 154.2k $4.2m | Reduced -3.0k |
| SPHERA FUNDS MANAGEMENT LTD. 0.70% of their portfolio | 136.5k $3.8m | Reduced -81.9k |
| Swiss National Bank 0.00% of their portfolio | 133.6k $3.7m | Reduced -13.2k |
| California Public Employees Retirement System 0.00% of their portfolio | 108.2k $3.0m | Unchanged |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 106.2k $2.9m | Reduced -818 |
| Fisher Asset Management, LLC 0.00% of their portfolio | 95.8k $2.6m | Reduced -6.4k |
| Legal & General Group Plc 0.00% of their portfolio | 88.3k $2.4m | Reduced -12.3k |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 83.6k $2.3m | Added +10.9k |
| Susquehanna Portfolio Strategies, LLC 0.04% of their portfolio | 80.5k $2.2m | First filing |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 79.1k $2.2m | Added +3.4k |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 78.1k $2.2m | New |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 77.7k $2.1m | Added +18.1k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 73.5k $2.0m | Reduced -562.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 72.3k $2.0m | Reduced -2.4k |
| Engineers Gate Manager LP 0.05% of their portfolio | 69.5k $1.9m | Added +21.9k |
| TWINBEECH CAPITAL LP 0.03% of their portfolio | 67.7k $1.9m | Reduced -124.8k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 65.7k $1.8m | Reduced -163 |
| Knights of Columbus Asset Advisors LLC 0.11% of their portfolio | 59.4k $1.6m | Added +30.3k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 57.0k $1.6m | Reduced -16.9k |
| PROFUND ADVISORS LLC 0.07% of their portfolio | 55.4k $1.5m | Added +20.0k |
| TUDOR INVESTMENT CORP ET AL 0.02% of their portfolio | 49.6k $1.4m | New |
| TD Asset Management Inc 0.00% of their portfolio | 46.9k $1.3m | Reduced -12.2k |
| DUALITY ADVISERS, LP 0.14% of their portfolio | 46.6k $1.3m | Added +10.6k |
| Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio | 45.8k $1.3m | Added +6.3k |
| PUTNAM INVESTMENTS LLC 0.00% of their portfolio | 44.8k $1.2m | Reduced -1.4k |
| HARBOR CAPITAL ADVISORS, INC. 0.20% of their portfolio | 38.4k $1.1m | Added +9.1k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 37.2k $1.0m | Reduced -160 |
| MetLife Investment Management, LLC 0.01% of their portfolio | 37.2k $1.0m | Unchanged |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 0.03% of their portfolio | 36.1k $993.6k | Reduced -6.5k |
| ALGERT GLOBAL LLC 0.04% of their portfolio | 36.0k $992.2k | New |
| Skandinaviska Enskilda Banken AB (publ) 0.01% of their portfolio | 35.9k $990.6k | Unchanged |
| Edgestream Partners, L.P. 0.07% of their portfolio | 35.8k $987.8k | New |
| AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio | 35.8k $987.1k | Added +462 |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 33.9k $933.0k | New |
| GUGGENHEIM CAPITAL LLC 0.01% of their portfolio | 31.6k $871.4k | Added +5.3k |
| Hudson Bay Capital Management LP 0.01% of their portfolio | 30.0k $826.8k | Reduced -30.0k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 29.8k $822.6k | Added +1.5k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 29.2k $799.0k | Added +4.2k |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 29.1k $803.1k | Unchanged |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 28.8k $794.4k | Reduced -81.6k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 28.7k $790.6k | Reduced -13.7k |
| Corton Capital Inc. 0.24% of their portfolio | 27.9k $769.3k | New |
| Jump Financial, LLC 0.02% of their portfolio | 26.3k $723.6k | Added +10.8k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 25.7k $708.5k | Added +2.1k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 25.4k $700.4k | Reduced -27.9k |
| Verition Fund Management LLC 0.01% of their portfolio | 24.6k $676.9k | Reduced -674 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 24.5k $674.3k | Reduced -73.0k |
| George Kaiser Family Foundation 0.86% of their portfolio | 24.4k $4.3m | Reduced -21.4k |