PTC TherapeuticsPTCT
13F holders, Q1 2026 (March 31)352holders −1
52new positions
53sold out
6famous investors
$68.12avg. 13F price*
At the end of Q1 2026, 352 institutions reported holding PTC Therapeutics Inc. (PTCT) in their 13F filings, down 1 from Q4 2025. 52 opened new positions and 53 sold out. The largest holders were BlackRock, Inc. ($882.2M), RTW Investments, LP ($527.8M) and Janus Henderson Group PLC ($490.0M). 6 famous investors held it, including David E. Shaw (0.1% of D. E. Shaw & Co.'s portfolio), Jim Simons / Peter Brown (0.1% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- PTC Therapeutics Inc.
- CUSIP
- 69366J200
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 52 | $194.5M |
| Exits | 53 | $264.6M |
All 13F filers, Q4 2025 → Q1 2026: 11,650,947 shares bought and 9,104,036 shares sold, net +2,546,911 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 352 holders
| BlackRock, Inc. | 0.02% | Add +1.3% | 12,948,717 | $882.2M |
| RTW Investments, LP | 5.25% | No change | 7,746,415 | $527.8M |
| Janus Henderson Group PLC | 0.23% | Add +48.3% | 7,193,433 | $490.0M |
| Vanguard Portfolio Management LLC | 0.02% | — | 4,804,594 | $327.3M |
| State Street Corp. | 0.01% | Add +3.3% | 4,346,519 | $296.1M |
| Wellington Management Group LLP | 0.05% | Add +1.9% | 3,942,610 | $268.6M |
| Vanguard Capital Management LLC | 0.01% | — | 3,676,256 | $250.5M |
| Toronto Dominion Bank | 0.40% | Reduce -26.9% | 3,025,963 | $206.2M |
| Geode Capital Management, LLC | 0.01% | Add +9.6% | 2,209,954 | $150.6M |
| Armistice Capital, LLC | 4.67% | Reduce -26.0% | 2,074,449 | $141.3M |
| Bank of America Corp. | 0.01% | Add +31.8% | 1,886,841 | $128.6M |
| Hood River Capital Management LLC | 1.14% | Add +66.0% | 1,664,559 | $113.4M |
| D. E. Shaw & Co. | 0.09% | Reduce -6.0% | 1,640,381 | $111.8M |
| FMR LLC | 0.01% | Reduce -9.1% | 1,528,362 | $104.1M |
| Tang Capital Management LLC | 5.19% | No change | 1,500,000 | $102.2M |
| UBS Group AG | 0.02% | Add +41.5% | 1,364,768 | $93.0M |
| Jefferies Financial Group Inc. | 1.17% | Reduce -18.3% | 1,354,459 | $92.3M |
| Pictet Asset Management Holding SA | 0.08% | Add +20.9% | 1,183,720 | $80.1M |
| Franklin Resources Inc. | 0.02% | Reduce -12.8% | 1,121,388 | $76.4M |
| Driehaus Capital Management LLC | 0.51% | Reduce -10.6% | 1,015,772 | $69.2M |
| Palo Alto Investors LP | 9.60% | Add +2.0% | 921,607 | $62.8M |
| BNP Paribas Financial Markets | 0.04% | Add +11.1% | 920,476 | $62.7M |
| Dimensional Fund Advisors LP | 0.01% | Add +42.0% | 890,715 | $60.7M |
| SG Americas Securities, LLC | 0.07% | Reduce -1.6% | 879,701 | $59.9M |
| Invesco Ltd. | 0.01% | Add +99.3% | 865,451 | $59.0M |
| Goldman Sachs Group Inc. | 0.01% | Reduce -19.1% | 827,631 | $56.4M |
| Northern Trust Corp. | 0.01% | Add +4.8% | 806,276 | $54.9M |
| Woodline Partners LP | 0.19% | Add +30.3% | 744,988 | $50.8M |
| Charles Schwab Investment Management Inc. | 0.01% | Reduce -0.5% | 731,642 | $49.8M |
| Jupiter Asset Management Ltd. | 0.26% | Add +97.0% | 711,457 | $48.5M |
| Morgan Stanley | 0.00% | Reduce -25.5% | 674,134 | $45.9M |
| Nuveen, LLC | 0.01% | Reduce -4.6% | 667,019 | $45.4M |
| Boston Partners | 0.05% | Add +32.7% | 647,482 | $44.1M |
| Lord, Abbett & Co. LLC | 0.14% | Reduce -1.6% | 617,121 | $42.0M |
| Ensign Peak Advisors, Inc | 0.07% | Add +107.5% | 582,318 | $39.7M |
| Vanguard Fiduciary Trust Co. | 0.01% | — | 553,658 | $37.7M |
| Renaissance Technologies | 0.06% | Reduce -12.2% | 533,300 | $36.3M |
| Bank of New York Mellon Corp | 0.01% | Add +1.6% | 522,763 | $35.6M |
| Principal Financial Group Inc. | 0.02% | Add +7.5% | 515,001 | $35.1M |
| Qube Research & Technologies Ltd | 0.05% | New | 513,823 | $35.0M |
| Loomis Sayles & Co. L P | 0.05% | New | 493,603 | $33.6M |
| T. Rowe Price Associates Inc. | 0.00% | Add +3.3% | 475,148 | $32.4M |
| Marshall Wace, LLP | 0.03% | Add +85.9% | 460,638 | $31.4M |
| Balyasny Asset Management L.P. | 0.06% | New | 460,564 | $31.4M |
| Parkman Healthcare Partners LLC | 3.05% | Add +169.3% | 431,364 | $29.4M |
| Manufacturers Life Insurance Company, The | 0.03% | Reduce -0.3% | 425,240 | $29.0M |
| Citadel Advisors | 0.02% | Reduce -66.6% | 385,199 | $26.2M |
| Rockefeller Capital Management L.P. | 0.05% | Reduce -5.1% | 384,672 | $26.2M |
| Defilade Capital Management, L.P. | 3.60% | New | 376,165 | $25.6M |
| Panagora Asset Management Inc. | 0.09% | Reduce -2.4% | 351,370 | $23.9M |
| Mackenzie Financial Corp. | 0.03% | Add +45.9% | 345,683 | $23.6M |
| Legal & General Group Plc | 0.01% | Reduce -6.3% | 343,380 | $23.4M |
| Voya Investment Management LLC | 0.03% | Add +1.0% | 342,637 | $23.3M |
| AQR Capital Management | 0.01% | Add +0.1% | 342,106 | $23.3M |
| Russell Investments Group, Ltd. | 0.02% | Add +23.9% | 335,439 | $22.9M |
| JPMorgan Chase & Co. | 0.00% | Reduce -2.8% | 346,017 | $22.7M |
| Public Sector Pension Investment Board | 0.07% | Add +2.2% | 331,852 | $22.6M |
| Schonfeld Strategic Advisors LLC | 0.18% | New | 318,405 | $21.7M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.02% | Reduce -51.9% | 311,810 | $21.2M |
| Deutsche Bank AG | 0.01% | Add +3.2% | 238,754 | $16.3M |
| HSBC Holdings PLC | 0.01% | Add +1772.2% | 227,059 | $15.5M |
| Federated Hermes, Inc. | 0.03% | Add +100.7% | 225,916 | $15.4M |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0.01% | Reduce -3.4% | 213,363 | $14.5M |
| Rhumbline Advisers | 0.01% | Add +2.2% | 212,462 | $14.5M |
| Susquehanna International Group, LLP | 0.02% | Add +1013.1% | 207,938 | $14.2M |
| Boxer Capital Management, LLC | 1.79% | No change | 200,000 | $13.6M |
| Segall Bryant & Hamill, LLC | 0.19% | Add +287.4% | 195,380 | $13.3M |
| Blue Sparrow, LLC | 0.22% | New | 190,600 | $13.0M |
| Alliancebernstein L.P. | 0.00% | Add +61.4% | 152,176 | $11.6M |
| Ameriprise Financial Inc. | 0.00% | Add +12.9% | 166,659 | $11.4M |
| Prudential Financial Inc. | 0.01% | Reduce -10.2% | 164,570 | $11.2M |
| Rock Springs Capital Management LP | 0.65% | Add +161.5% | 161,798 | $11.0M |
| Swiss National Bank | 0.01% | Add +1.3% | 142,865 | $9.7M |
| First Trust Advisors LP | 0.01% | Reduce -12.6% | 136,003 | $9.3M |
| Sei Investments Co. | 0.01% | Add +41.4% | 130,204 | $8.9M |
| Schroder Investment Management Group | 0.01% | Add +85.9% | 134,968 | $8.9M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.02% | Reduce -14.3% | 129,682 | $8.8M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -3.7% | 126,963 | $8.6M |
| Neuberger Berman Group LLC | 0.01% | Add +8.9% | 121,549 | $8.3M |
| Capital Fund Management S.A. | 0.07% | New | 121,286 | $8.3M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Reduce -72.5% | 111,632 | $7.6M |
| Royce & Associates LP | 0.06% | Add +14.9% | 92,828 | $6.3M |
| Castleark Management LLC | 0.21% | Reduce -5.1% | 91,880 | $6.3M |
| WCM Investment Management, LLC | 0.01% | Reduce -14.1% | 94,687 | $6.2M |
| California State Teachers Retirement System | 0.01% | Add +23.5% | 84,320 | $5.7M |
| BI Asset Management Fondsmaeglerselskab A/S | 0.06% | Reduce -48.7% | 81,878 | $5.6M |
| Sector Gamma As | 1.21% | Add +21.1% | 75,000 | $5.1M |
| Pinnacle Associates Ltd. | 0.07% | Reduce -10.2% | 74,956 | $5.1M |
| Los Angeles Capital Management LLC | 0.02% | Add +121.0% | 71,660 | $4.9M |
| State of Wisconsin Investment Board | 0.01% | Add +47.5% | 68,988 | $4.7M |
| Rafferty Asset Management, LLC | 0.02% | Reduce -12.5% | 68,685 | $4.7M |
| CANADA LIFE ASSURANCE Co | 0.01% | Reduce -16.3% | 65,378 | $4.5M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 65,200 | $4.4M |
| Assenagon Asset Management S.A. | 0.01% | Add +13.3% | 61,397 | $4.2M |
| Empowered Funds, LLC | 0.03% | Reduce -76.9% | 57,906 | $3.9M |
| CenterBook Partners LP | 0.21% | New | 56,813 | $3.9M |
| Intech Investment Management LLC | 0.04% | Add +61.3% | 55,949 | $3.8M |
| Thrivent Financial for Lutherans | 0.01% | Reduce -2.9% | 53,590 | $3.7M |
| Picton Mahoney Asset Management | 0.04% | Add +2238.9% | 53,328 | $3.6M |
| Barclays PLC | 0.00% | Reduce -75.9% | 53,079 | $3.6M |
"% of holder's portfolio" is PTCT's weight in each manager's 13F, not the share of PTC Therapeutics Inc. the manager owns.