PTC THERAPEUTICS INC (PTCT)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
359
Reporting holders
$8.3B
Reported value
120.4%
Of shares outstanding
1.0%
Held as options
+29
Holder change
Institutions report 100,481,894 shares against 83,460,802 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Over 100% because an adviser and a sub-adviser can both report the same shares, and both are counted.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $1.1B | 13,964,554 | 0.02% | 8q | +7.8%+$82.9M |
| RTW INVESTMENTS, LP | $631.9M | 7,746,415 | 5.39% | 31q | HELD |
| Jupiter Topco LLC | $590.2M | 7,236,402 | 0.24% | new | FIRST |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $402.0M | 4,928,111 | 0.02% | 2q | +2.6%+$10.1M |
| STATE STREET CORP | $375.1M | 4,598,952 | 0.01% | 31q | +5.8%+$20.6M |
| WELLINGTON MANAGEMENT GROUP LLP | $336.7M | 4,128,273 | 0.06% | 31q | +4.7%+$15.1M |
| VANGUARD CAPITAL MANAGEMENT LLC | $305.0M | 3,739,127 | 0.01% | 2q | +1.7%+$5.1M |
| Palo Alto Investors LP | $224.9M | 2,756,538 | 10.36% | 8q | +199.1%+$149.7M |
| GEODE CAPITAL MANAGEMENT, LLC | $180.1M | 2,207,376 | 0.01% | 31q | HELD |
| TORONTO DOMINION BANK | $176.7M | 2,165,846 | 0.20% | 7q | -28.4%-$70.2M |
| WESTFIELD CAPITAL MANAGEMENT CO LP | $159.6M | 1,956,156 | 0.52% | new | NEW |
| Hood River Capital Management LLC | $141.8M | 1,738,613 | 1.03% | 6q | +4.4%+$6.0M |
| ARMISTICE CAPITAL, LLC | $141.2M | 1,071,395 | 1.73% | 28q | -48.4%-$132.2M |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | $140.5M | 1,722,688 | 0.42% | new | NEW |
| D. E. Shaw & Co., Inc. | $126.3M | 1,548,919 | 0.06% | 31q | -5.6%-$7.5M |
| TANG CAPITAL MANAGEMENT LLC | $122.4M | 1,500,000 | 5.56% | 11q | HELD |
| BANK OF AMERICA CORP /DE/ | $118.5M | 1,452,277 | 0.01% | 31q | -23.0%-$35.4M |
| Driehaus Capital Management LLC | $117.5M | 1,440,107 | 0.68% | 7q | +41.8%+$34.6M |
| FMR LLC | $114.1M | 1,398,261 | 0.00% | 31q | -8.5%-$10.6M |
| Jefferies Financial Group Inc. | $110.7M | 1,357,042 | 0.73% | 4q | HELD |
| FULLER & THALER ASSET MANAGEMENT, INC. | $94.4M | 1,156,819 | 0.26% | new | NEW |
| Pictet Asset Management Holding SA | $93.6M | 1,147,844 | 0.09% | 12q | -3.0%-$2.9M |
| MORGAN STANLEY | $90.0M | 1,103,675 | 0.00% | 35q | +63.7%+$35.0M |
| Blue Sparrow, LLC /DE | $85.7M | 1,050,700 | 0.83% | 2q | +451.3%+$70.2M |
| FRANKLIN RESOURCES INC | $83.8M | 1,027,327 | 0.02% | 31q | -8.4%-$7.7M |
| Invesco Ltd. | $76.8M | 941,581 | 0.01% | 31q | +8.8%+$6.2M |
| NORTHERN TRUST CORP | $71.8M | 880,029 | 0.01% | 31q | +9.1%+$6.0M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $64.4M | 790,112 | 0.01% | 31q | +8.0%+$4.8M |
| Sixth Street Partners Management Company, L.P. | $64.4M | 790,112 | 0.01% | new | NEW |
| CITADEL ADVISORS LLC | $62.5M | 747,822 | 0.01% | 31q | +94.1%+$30.3M |
| RENAISSANCE TECHNOLOGIES LLC | $59.0M | 723,500 | 0.08% | 12q | +35.7%+$15.5M |
| Boston Partners | $58.6M | 718,574 | 0.05% | 4q | +11.0%+$5.8M |
| JUPITER ASSET MANAGEMENT LTD | $57.7M | 707,450 | 0.29% | 3q | -0.6%-$326.9K |
| MARSHALL WACE, LLP | $57.5M | 704,787 | 0.05% | 6q | +53.0%+$19.9M |
| JPMORGAN CHASE & CO | $56.1M | 684,042 | 0.00% | 31q | +97.7%+$27.7M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $53.4M | 654,382 | 0.02% | 5q | +486.2%+$44.3M |
| DIMENSIONAL FUND ADVISORS LP | $52.0M | 637,704 | 0.01% | 7q | -28.4%-$20.6M |
| GOLDMAN SACHS GROUP INC | $50.4M | 618,247 | 0.00% | 31q | -25.3%-$17.1M |
| LOOMIS SAYLES & CO L P | $48.2M | 590,374 | 0.06% | 2q | +19.6%+$7.9M |
| VANGUARD FIDUCIARY TRUST CO | $48.0M | 587,887 | 0.01% | 2q | +6.2%+$2.8M |
| Nuveen, LLC | $47.6M | 583,829 | 0.01% | 6q | -12.5%-$6.8M |
| Public Sector Pension Investment Board | $46.5M | 570,046 | 0.06% | 3q | +71.8%+$19.4M |
| Bank of New York Mellon Corp | $45.1M | 553,462 | 0.01% | 31q | +5.9%+$2.5M |
| PRINCIPAL FINANCIAL GROUP INC | $44.2M | 541,635 | 0.02% | 31q | +5.2%+$2.2M |
| VOYA INVESTMENT MANAGEMENT LLC | $44.0M | 539,319 | 0.04% | 31q | +57.4%+$16.0M |
| Ensign Peak Advisors, Inc | $41.4M | 508,056 | 0.07% | 27q | -56.4%-$53.6M |
| AMERICAN CENTURY COMPANIES INC | $40.9M | 500,995 | 0.02% | 20q | +9913.9%+$40.5M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $40.8M | 395,662 | 0.00% | 31q | +90.3%+$19.4M |
| FEDERATED HERMES, INC. | $39.4M | 483,424 | 0.06% | 7q | +114.0%+$21.0M |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $36.1M | 441,957 | 0.03% | 31q | +3.9%+$1.4M |
| Parkman Healthcare Partners LLC | $35.5M | 435,691 | 3.64% | 8q | +1.0%+$353.0K |
| Defilade Capital Management, L.P. | $35.4M | 433,699 | 4.74% | 2q | +15.3%+$4.7M |
| Russell Investments Group, Ltd. | $34.1M | 418,025 | 0.03% | 31q | +24.6%+$6.7M |
| BNP PARIBAS FINANCIAL MARKETS | $30.9M | 378,720 | 0.01% | 31q | -58.9%-$44.2M |
| Legal & General Group Plc | $28.8M | 352,734 | 0.01% | 31q | +2.7%+$763.0K |
| AQR CAPITAL MANAGEMENT LLC | $27.1M | 332,251 | 0.01% | 19q | -2.9%-$803.9K |
| Qube Research & Technologies Ltd | $25.4M | 311,374 | 0.02% | 2q | -39.4%-$16.5M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | $24.8M | 303,685 | 0.02% | 31q | -2.6%-$662.8K |
| Rockefeller Capital Management L.P. | $24.7M | 302,393 | 0.04% | 21q | -21.4%-$6.7M |
| DEUTSCHE BANK AG\ | $24.2M | 296,899 | 0.01% | 34q | +24.4%+$4.7M |
| SEGALL BRYANT & HAMILL, LLC | $22.2M | 271,735 | 0.26% | 5q | +39.1%+$6.2M |
| UBS Group AG | $21.4M | 262,426 | 0.00% | 31q | -80.8%-$89.9M |
| Boxer Capital Management, LLC | $16.3M | 200,000 | 1.23% | 4q | HELD |
| RHUMBLINE ADVISERS | $15.7M | 192,706 | 0.01% | 31q | -9.3%-$1.6M |
| PRUDENTIAL FINANCIAL INC | $15.2M | 185,820 | 0.02% | 8q | +12.9%+$1.7M |
| AMERIPRISE FINANCIAL INC | $14.0M | 171,874 | 0.00% | 18q | -48.4%-$13.2M |
| Rock Springs Capital Management LP | $13.2M | 162,298 | 0.65% | 3q | HELD |
| Hudson Bay Capital Management LP | $13.0M | 159,778 | 0.04% | 2q | +4253.6%+$12.7M |
| Schonfeld Strategic Advisors LLC | $12.0M | 147,425 | 0.04% | 2q | -53.7%-$13.9M |
| Swiss National Bank | $11.5M | 141,465 | 0.01% | 31q | -1.0%-$114.2K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | $11.1M | 135,633 | 0.02% | 7q | +4.6%+$485.4K |
| HSBC HOLDINGS PLC | $10.8M | 131,389 | 0.00% | 24q | -42.1%-$7.8M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $10.3M | 126,011 | 0.00% | 31q | -0.7%-$77.7K |
| SEI INVESTMENTS CO | $10.2M | 125,434 | 0.01% | 7q | -3.7%-$389.1K |
| CITIGROUP INC | $9.7M | 118,656 | 0.00% | 31q | +435.8%+$7.9M |
| FIRST TRUST ADVISORS LP | $9.2M | 113,354 | 0.01% | 10q | -16.7%-$1.8M |
| Longaeva Partners L.P. | $9.1M | 111,803 | 0.20% | new | NEW |
| SCHRODER INVESTMENT MANAGEMENT GROUP | $8.3M | 101,429 | 0.01% | 4q | -24.8%-$2.7M |
| SECTOR GAMMA AS | $8.2M | 100,000 | 1.77% | 7q | +33.3%+$2.0M |
| WCM INVESTMENT MANAGEMENT, LLC | $7.7M | 93,799 | 0.01% | 4q | -0.9%-$72.4K |
| PANAGORA ASSET MANAGEMENT INC | $7.3M | 88,956 | 0.02% | 31q | -74.7%-$21.4M |
| ALLIANCEBERNSTEIN L.P. | $7.2M | 105,937 | 0.00% | 31q | -30.4%-$3.2M |
| Aquatic Capital Management LLC | $6.8M | 83,470 | 0.23% | 2q | +318.9%+$5.2M |
| WELLS FARGO & COMPANY/MN | $6.8M | 83,071 | 0.00% | 31q | +37.0%+$1.8M |
| XTX Topco Ltd | $6.7M | 81,923 | 0.09% | 2q | +422.7%+$5.4M |
| Empowered Funds, LLC | $6.6M | 81,271 | 0.03% | 6q | +40.3%+$1.9M |
| MOORE CAPITAL MANAGEMENT, LP | $6.2M | 75,588 | 0.09% | 2q | +69.1%+$2.5M |
| PINNACLE ASSOCIATES LTD | $5.7M | 70,435 | 0.06% | 31q | -6.0%-$368.8K |
| Verition Fund Management LLC | $5.7M | 30,000 | 0.01% | new | NEW |
| RAYMOND JAMES FINANCIAL INC | $5.7M | 69,660 | 0.00% | 7q | +32.8%+$1.4M |
| VANGUARD ASSET MANAGEMENT, Ltd | $5.6M | 68,828 | 0.00% | 2q | +5.6%+$295.9K |
| Louisiana State Employees Retirement System | $5.4M | 72,000 | 0.04% | 3q | +102.2%+$2.7M |
| Capricorn Fund Managers Ltd | $5.2M | 63,900 | 0.41% | new | NEW |
| MERCER GLOBAL ADVISORS INC /ADV | $5.2M | 63,180 | 0.00% | 4q | +25.5%+$1.0M |
| Caption Management, LLC | $4.9M | options only | 0.02% | 5q | OPTIONS |
| BARCLAYS PLC | $4.8M | 58,370 | 0.00% | 31q | +10.0%+$431.6K |
| INTECH INVESTMENT MANAGEMENT LLC | $4.7M | 57,581 | 0.04% | 8q | +2.9%+$133.1K |
| ExodusPoint Capital Management, LP | $4.7M | 57,278 | 0.03% | new | NEW |
| LOS ANGELES CAPITAL MANAGEMENT LLC | $4.6M | 55,926 | 0.02% | 11q | -22.0%-$1.3M |
| Creative Planning | $4.5M | 55,712 | 0.00% | 10q | +32.0%+$1.1M |
Showing the largest 100 of 386 reported holders.
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 359 | $8.3B | 100,481,894 | 69 | 133 | 99 | 1.0% |
| Q1 2026 | 330 | $6.5B | 93,777,408 | 54 | 134 | 85 | 1.1% |
| Q4 2025 | 323 | $6.8B | 89,609,677 | 80 | 110 | 87 | 0.6% |
| Q3 2025 | 268 | $5.1B | 81,281,697 | 48 | 86 | 92 | 1.3% |
| Q2 2025 | 258 | $3.9B | 78,529,426 | 52 | 100 | 71 | 0.5% |
| Q1 2025 | 238 | $4.0B | 77,354,451 | 44 | 77 | 81 | 0.7% |
| Q4 2024 | 217 | $3.3B | 73,153,889 | 48 | 66 | 68 | 1.1% |
| Q3 2024 | 181 | $2.8B | 74,598,002 | 25 | 58 | 64 | 0.3% |
| Q2 2024 | 181 | $2.3B | 75,666,564 | 39 | 68 | 53 | 0.5% |
| Q1 2024 | 166 | $2.5B | 83,848,435 | 29 | 45 | 59 | 0.9% |
| Q4 2023 | 154 | $2.2B | 80,382,519 | 17 | 65 | 42 | 0.5% |
| Q3 2023 | 158 | $1.7B | 76,113,061 | 18 | 66 | 49 | 1.1% |
| Q2 2023 | 181 | $3.0B | 73,815,743 | 27 | 72 | 55 | 0.7% |
| Q1 2023 | 175 | $3.9B | 80,426,725 | 28 | 67 | 58 | 0.5% |
| Q4 2022 | 162 | $2.6B | 66,245,507 | 29 | 47 | 57 | 0.8% |
| Q3 2022 | 211 | $4.0B | 78,358,610 | 45 | 70 | 58 | 0.5% |
| Q2 2022 | 184 | $3.0B | 74,143,694 | 27 | 55 | 69 | 0.6% |
| Q1 2022 | 180 | $2.8B | 74,084,263 | 29 | 62 | 52 | 0.1% |
| Q4 2021 | 175 | $3.0B | 75,533,539 | 18 | 52 | 56 | 0.2% |
| Q3 2021 | 184 | $2.8B | 74,592,444 | 18 | 61 | 50 | 0.3% |
| Q2 2021 | 186 | $3.2B | 74,161,347 | 18 | 76 | 52 | 0.5% |
| Q1 2021 | 209 | $3.5B | 74,126,792 | 28 | 74 | 74 | 0.4% |
| Q4 2020 | 216 | $4.5B | 73,194,282 | 34 | 64 | 79 | 0.3% |
| Q3 2020 | 198 | $3.4B | 71,497,188 | 21 | 63 | 73 | 0.8% |
| Q2 2020 | 207 | $3.5B | 69,210,495 | 29 | 88 | 60 | 1.4% |
| Q1 2020 | 202 | $2.9B | 64,322,074 | 31 | 80 | 68 | 2.4% |
| Q4 2019 | 211 | $3.1B | 61,984,850 | 45 | 66 | 61 | 3.2% |
| Q3 2019 | 190 | $2.2B | 63,108,528 | 34 | 67 | 55 | 3.1% |
| Q2 2019 | 180 | $2.7B | 58,426,663 | 28 | 64 | 57 | 1.9% |
| Q1 2019 | 180 | $2.3B | 59,280,214 | 31 | 76 | 39 | 0.8% |
| Q4 2018 | 167 | $1.7B | 49,334,431 | 1 | 4 | 1 | 1.6% |