Who owns PTC Therapeutics, Inc.?
Institutional ownership of PTCT from SEC Form 13F filings across 254 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
254
13F holders
$5.44B
value, 2026 filers
83.1%
of shares outstanding (69.3M sh)
46
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of PTCT's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 14.0M | $1.14B | 0.0% | 16.7% | +7.8% |
| 2 | Jupiter Topco LLCNEW | 7.2M | $590.2M | 0.2% | 8.7% | new |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 4.9M | $402.0M | 0.0% | 5.9% | +2.6% |
| 4 | WELLINGTON MANAGEMENT GROUP LLP | 4.1M | $336.7M | 0.1% | 4.9% | +4.7% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 3.7M | $305.0M | 0.0% | 4.5% | -49.1% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 2.2M | $180.1M | 0.0% | 2.6% | -0.1% |
| 7 | TORONTO DOMINION BANK | 2.2M | $176.7M | 0.2% | 2.6% | -28.4% |
| 8 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLCNEW | 1.7M | $140.5M | 0.4% | 2.1% | new |
| 9 | D. E. Shaw & Co., Inc. | 1.5M | $126.3M | 0.1% | 1.9% | -5.6% |
| 10 | BANK OF AMERICA CORP /DE/ | 1.5M | $118.5M | 0.0% | 1.7% | -23.0% |
| 11 | FMR LLC | 1.4M | $114.1M | 0.0% | 1.7% | -8.5% |
| 12 | Pictet Asset Management Holding SA | 1.1M | $93.6M | 0.1% | 1.4% | -3.0% |
| 13 | PRICE T ROWE ASSOCIATES INC /MD/ | 1.1M | $90,912 | 0.0% | 1.3% | +134.6% |
| 14 | MORGAN STANLEY | 1.1M | $90.0M | 0.0% | 1.3% | +63.7% |
| 15 | FRANKLIN RESOURCES INC | 1.0M | $83.8M | 0.0% | 1.2% | -8.4% |
| 16 | Invesco Ltd. | 941,581 | $76.8M | 0.0% | 1.1% | +8.8% |
| 17 | NORTHERN TRUST CORP | 880,029 | $71.8M | 0.0% | 1.1% | +9.1% |
| 18 | Sixth Street Partners Management Company, L.P.NEW | 790,112 | $64.4M | 11.1% | 0.9% | new |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 790,112 | $64.4M | 0.0% | 0.9% | +8.0% |
| 20 | CITADEL ADVISORS LLC | 747,822 | $61.0M | 0.0% | 0.9% | +94.1% |
| 21 | MARSHALL WACE, LLP | 704,787 | $57.5M | 0.0% | 0.8% | +53.0% |
| 22 | JPMORGAN CHASE & CO | 684,042 | $56.1M | 0.0% | 0.8% | +97.7% |
| 23 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 654,382 | $53.4M | 0.0% | 0.8% | +486.2% |
| 24 | GOLDMAN SACHS GROUP INC | 618,247 | $50.4M | 0.0% | 0.7% | -25.3% |
| 25 | SG Americas Securities, LLC | 605,581 | $49,397 | 0.0% | 0.7% | -31.2% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.