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 ($1.2m this quarter). Holder counts are more reliable. Shares outstanding: 76.7m as of 2024-04-23, 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 ≈ $29.14. Options: 9 managers hold calls ($5.1m notional), 9 hold puts ($18.4m).
Trends to Q1 2024
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 |
| Q1 2024 | 185 |
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 |
| Q1 2024 | 83 | 90 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2023 | $18.4m | $4.8m | 0.26 |
| Q3 2023 | $8.5m | $10.7m | 1.27 |
| Q4 2023 | $11.8m | $3.4m | 0.29 |
| Q1 2024 | $5.1m | $18.4m | 3.61 |
Biggest buyers
| MORGAN STANLEY | Added | +3.7m |
| FIRST TRUST ADVISORS LP | New | +1.4m |
| JANUS HENDERSON GROUP PLC | Added | +1.1m |
| VANGUARD GROUP INC | Added | +568.2k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Added | +377.8k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Added | +282.4k |
| TWO SIGMA ADVISERS, LP | Added | +203.4k |
| TWO SIGMA INVESTMENTS, LP | New | +196.7k |
| Nuveen Asset Management, LLC | Added | +174.3k |
| CIBC WORLD MARKETS CORP | New | +150.0k |
Biggest sellers
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -915.0k |
| JANE STREET GROUP, LLC | Reduced | -723.2k |
| STATE STREET CORP | Reduced | -524.2k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -368.3k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -358.4k |
| CITADEL ADVISORS LLC | Reduced | -262.6k |
| Woodline Partners LP | Sold out | -226.9k |
| TANG CAPITAL MANAGEMENT LLC | Reduced | -200.0k |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | -171.9k |
| JPMORGAN CHASE & CO | Reduced | -163.3k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $2.9m100.6k shares |
| Caption Management, LLC | Reduced | $872.7k30.0k shares |
| CITIGROUP INC | New | $721.4k24.8k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $450.9k15.5k shares |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | Reduced | $44.5k20.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $40.0k1.4k shares |
| Walleye Capital LLC | New | $17.5k600 shares |
| GROUP ONE TRADING LLC | Reduced | $14.5k500 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| GROUP ONE TRADING LLC | Added | $14.6m501.3k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.0m35.2k shares |
| WOLVERINE ASSET MANAGEMENT LLC | Reduced | $910.5k31.3k shares |
| Caption Management, LLC | Reduced | $872.7k30.0k shares |
| CITIGROUP INC | New | $721.4k24.8k shares |
| CITADEL ADVISORS LLC | Reduced | $180.4k6.2k shares |
| Walleye Capital LLC | New | $43.6k1.5k shares |
| SIMPLEX TRADING, LLC | Reduced | $26.0k900 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 Q1 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 |
|---|---|---|---|---|---|
| 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 | — | — |
| Q1 2024 | 0 | — | 8 | $1.3m | $1.3m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-01-30 | Boulding Mark Elliott EXEC. VP AND CLO | Sold plan | $21.6k794 shares |
| 2024-01-30 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER | Sold plan | $16.8k618 shares |
| 2024-01-30 | Pauwels Eric CHIEF BUSINESS OFFICER | Sold plan | $10.0k366 shares |
| 2024-01-30 | Utter Christine Marie SVP, CHIEF ACCOUNTING OFFICER | Sold plan | $8.7k318 shares |
| 2024-01-30 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER · By Spouse | Sold plan | $76328 shares |
| 2024-01-22 | Jacobson Allan Steven Director | Sold plan | $273.8k10.0k shares |
| 2024-01-09 | Klein Matthew B. CHIEF EXECUTIVE OFFICER, director | Sold plan | $157.9k5.4k shares |
| 2024-01-09 | Pauwels Eric CHIEF BUSINESS OFFICER | Sold plan | $59.9k2.1k shares |
| 2024-01-09 | Boulding Mark Elliott EXEC. VP AND CLO | Sold plan | $56.2k1.9k shares |
| 2024-01-09 | Utter Christine Marie SVP, FINANCE & CAO | Sold plan | $48.0k1.7k shares |
| 2024-01-09 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER | Sold plan | $44.1k1.5k shares |
| 2024-01-09 | Golden Lee Scott CHIEF MEDICAL OFFICER | Sold plan | $35.5k1.2k shares |
| 2024-01-09 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER · By Spouse | Sold plan | $2.9k100 shares |
| 2024-01-08 | Klein Matthew B. CHIEF EXECUTIVE OFFICER, director | Sold plan | $64.1k2.2k shares |
| 2024-01-08 | Pauwels Eric CHIEF BUSINESS OFFICER | Sold plan | $44.9k1.6k shares |
| 2024-01-08 | Boulding Mark Elliott EXEC. VP AND CLO | Sold plan | $41.7k1.5k shares |
| 2024-01-08 | SCHMERTZLER MICHAEL Director | Sold plan | $41.7k1.5k shares |
| 2024-01-08 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER | Sold plan | $35.4k1.2k shares |
| 2024-01-08 | Utter Christine Marie SVP, FINANCE & CAO | Sold plan | $34.0k1.2k shares |
| 2024-01-08 | Golden Lee Scott CHIEF MEDICAL OFFICER | Sold plan | $22.2k775 shares |
| 2024-01-08 | Almstead Neil Gregory CHIEF TECHNICAL OPS OFFICER · By Spouse | Sold plan | $1.5k53 shares |
| 2024-01-05 | Klein Matthew B. CHIEF EXECUTIVE OFFICER, director | Sold plan | $274.4k10.1k 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, Q1 2024
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.01% of their portfolio | 9.4m $272.5m | Added +568.2k |
| WELLINGTON MANAGEMENT GROUP LLP 0.05% of their portfolio | 8.9m $258.9m | Reduced -915.0k |
| BlackRock Inc. 0.01% of their portfolio | 7.6m $220.1m | Reduced -69.0k |
| RTW INVESTMENTS, LP 3.19% of their portfolio | 7.4m $216.0m | Unchanged |
| ARMISTICE CAPITAL, LLC 5.24% of their portfolio | 6.8m $196.8m | Reduced -100.0k |
| MORGAN STANLEY 0.00% of their portfolio | 6.2m $180.0m | Added +3.7m |
| STATE STREET CORP 0.01% of their portfolio | 4.1m $119.6m | Reduced -524.2k |
| Camber Capital Management LP 4.07% of their portfolio | 4.0m $116.4m | Unchanged |
| COWEN AND COMPANY, LLC 4.23% of their portfolio | 3.7m $108.4m | Unchanged |
| JANUS HENDERSON GROUP PLC 0.06% of their portfolio | 3.7m $106.7m | Added +1.1m |
| FMR LLC 0.00% of their portfolio | 1.7m $50.2m | Reduced -87.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.7m $48.4m | Added +51.8k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.21% of their portfolio | 1.6m $46.7m | Added +282.4k |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 1.5m $43.1m | Added +55.1k |
| FIRST TRUST ADVISORS LP 0.04% of their portfolio | 1.4m $41.8m | New |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.07% of their portfolio | 1.3m $36.9m | Added +377.8k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.2m $35.9m | Reduced -163.3k |
| D. E. Shaw & Co., Inc. 0.05% of their portfolio | 1.2m $35.7m | Reduced -121.2k |
| Blackstone Inc. 0.14% of their portfolio | 1.1m $31.9m | Unchanged |
| Pictet Asset Management Holding SA 0.03% of their portfolio | 826.1k $24.2m | Reduced -40.5k |
| RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio | 761.4k $22.1m | Added +138.5k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.08% of their portfolio | 759.4k $22.1m | Reduced -60.4k |
| TANG CAPITAL MANAGEMENT LLC 2.12% of their portfolio | 700.0k $20.4m | Reduced -200.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 675.0k $19.6m | Reduced -13.8k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 639.9k $18.6m | Reduced -358.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 619.3k $18.0m | Added +8.4k |
| Rockefeller Capital Management L.P. 0.04% of their portfolio | 500.2k $14.6m | Reduced -1.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 480.0k $14.0m | Reduced -46.5k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 466.7k $13.6m | Added +174.3k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.03% of their portfolio | 439.4k $12.8m | Added +35.2k |
| TWO SIGMA ADVISERS, LP 0.03% of their portfolio | 393.2k $11.4m | Added +203.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 383.7k $11.2m | Added +117.8k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 360.2k $10.5m | Added +6.6k |
| Cubist Systematic Strategies, LLC 0.12% of their portfolio | 357.3k $10.4m | Added +140.9k |
| CITIGROUP INC 0.01% of their portfolio | 337.8k $9.8m | Added +122.8k |
| Assenagon Asset Management S.A. 0.02% of their portfolio | 306.2k $8.9m | Added +63.6k |
| Invesco Ltd. 0.00% of their portfolio | 304.6k $8.9m | Reduced -8.5k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 301.8k $8.8m | Added +110.7k |
| Rafferty Asset Management, LLC 0.03% of their portfolio | 294.3k $8.6m | Reduced -45.7k |
| PANAGORA ASSET MANAGEMENT INC 0.04% of their portfolio | 288.7k $8.4m | Reduced -14.3k |
| Jefferies Financial Group Inc. 0.16% of their portfolio | 272.9k $7.9m | Reduced -4.0k |
| Trexquant Investment LP 0.16% of their portfolio | 270.4k $7.9m | Added +37.8k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 238.2k $6.9m | Reduced -20.3k |
| UBS Group AG 0.00% of their portfolio | 225.5k $6.6m | Reduced -63.3k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 199.7k $5.8m | Reduced -171.9k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 196.7k $5.7m | New |
| PDT Partners, LLC 0.48% of their portfolio | 175.2k $5.1m | Reduced -268 |
| Candriam S.C.A. 0.03% of their portfolio | 167.0k $4.9m | Reduced -124.6k |
| PINNACLE ASSOCIATES LTD 0.07% of their portfolio | 156.9k $4.6m | Added +2.7k |
| CIBC WORLD MARKETS CORP 0.03% of their portfolio | 150.0k $4.4m | New |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 142.3k $4.1m | Reduced -368.3k |
| Swiss National Bank 0.00% of their portfolio | 133.6k $3.9m | Unchanged |
| CIBC WORLD MARKET INC. 0.01% of their portfolio | 125.0k $3.6m | New |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.01% of their portfolio | 113.5k $3.3m | New |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 109.1k $3.2m | Added +2.9k |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 99.8k $2.9m | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 94.7k $2.8m | Reduced -723.2k |
| BARCLAYS PLC 0.00% of their portfolio | 92.9k $2.7m | Reduced -160.4k |
| DANSKE BANK A/S 0.01% of their portfolio | 90.2k $2.6m | First filing |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 83.6k $2.4m | Unchanged |
| Empowered Funds, LLC 0.02% of their portfolio | 83.2k $2.4m | New |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 79.1k $2.3m | Unchanged |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 73.7k $2.1m | Added +153 |
| Legal & General Group Plc 0.00% of their portfolio | 71.9k $2.1m | Reduced -16.4k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 68.3k $2.0m | Reduced -4.0k |
| Engineers Gate Manager LP 0.05% of their portfolio | 65.7k $1.9m | Reduced -3.8k |
| SEVEN EIGHT CAPITAL, LP 0.18% of their portfolio | 58.7k $1.7m | Added +35.1k |
| Edgestream Partners, L.P. 0.08% of their portfolio | 53.5k $1.6m | Added +17.7k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 53.4k $1.6m | Added +29.0k |
| DUALITY ADVISERS, LP 0.14% of their portfolio | 49.3k $1.4m | Added +2.7k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 49.0k $1.4m | Reduced -8.0k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 47.8k $1.4m | Reduced -29.9k |
| PROFUND ADVISORS LLC 0.05% of their portfolio | 46.1k $1.3m | Reduced -9.2k |
| Corton Capital Inc. 0.48% of their portfolio | 44.5k $1.3m | Added +16.6k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 44.2k $1.3m | Added +7.0k |
| BURNEY CO/ 0.05% of their portfolio | 42.0k $1.2m | New |
| Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio | 41.7k $1.7m | Reduced -4.1k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 41.1k $1.2m | Reduced -24.5k |
| Jump Financial, LLC 0.03% of their portfolio | 37.9k $1.1m | Added +11.7k |
| MetLife Investment Management, LLC 0.01% of their portfolio | 37.2k $1.1m | Unchanged |
| AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio | 35.5k $1.0m | Reduced -305 |
| HARBOR CAPITAL ADVISORS, INC. 0.13% of their portfolio | 34.1k $991.0k | Reduced -4.3k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 33.9k $985.0k | Unchanged |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 31.4k $914.5k | New |
| GUGGENHEIM CAPITAL LLC 0.01% of their portfolio | 30.0k $873.9k | Reduced -1.6k |
| Susquehanna Portfolio Strategies, LLC 0.02% of their portfolio | 29.9k $869.8k | Reduced -50.6k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 28.6k $832.3k | Reduced -1.2k |
| TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio | 28.5k $828.3k | Reduced -21.1k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 28.3k $824.4k | Reduced -262.6k |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 27.7k $807.0k | Reduced -1.4k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 27.6k $803.0k | Added +2.2k |
| Handelsbanken Fonder AB 0.00% of their portfolio | 27.3k $794.0k | Added +10.6k |
| Y-Intercept (Hong Kong) Ltd 0.06% of their portfolio | 27.0k $784.1k | New |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 26.4k $767.0k | Reduced -2.8k |
| George Kaiser Family Foundation 0.87% of their portfolio | 24.4k $4.6m | Unchanged |
| Eisler Capital (US) LLC 0.24% of their portfolio | 24.3k $707.6k | New |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 24.3k $705.6k | Reduced -4.4k |
| DekaBank Deutsche Girozentrale 0.00% of their portfolio | 24.0k $695.0k | Unchanged |
| Rathbones Group PLC 0.00% of their portfolio | 23.7k $690.5k | Unchanged |
| Verition Fund Management LLC 0.01% of their portfolio | 23.6k $685.9k | Reduced -980 |