PTC Therapeutics, Inc. (PTCT) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for PTCT. 13F holdings as of 2026-06-30.
In 13F filings for the quarter ended June 30, 2026, 372 institutions reported holding PTCT, with 100.3 million shares worth $8.2 billion in aggregate.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| BlackRock | 13,964,554 | $1.1B | INCREASED |
| Vanguard | 9,386,980 | $766M | INCREASED |
| Rtw Investments | 7,746,415 | $632M | UNCHANGED |
| Janus Henderson (Jupiter Topco) | 7,236,402 | $590M | INCREASED |
| State Street | 4,598,952 | $375M | INCREASED |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|---|---|---|---|
| Michael Schmertzler (Director) | SELL | 382 | $23K | 2026-10-14 |
| Michael Schmertzler (Director) | SELL | 2,118 | $126K | 2026-10-14 |
| Mark Elliott Boulding (EXEC. VP AND CLO) | EXERCISE | 192 | $8K | 2026-10-09 |
| Mark Elliott Boulding (EXEC. VP AND CLO) | SELL | 192 | $12K | 2026-10-09 |
| Mark Elliott Boulding (EXEC. VP AND CLO) | EXERCISE | 192 | $8K | 2026-10-09 |
Full institutional holdings, insider history, and congressional trades for PTC Therapeutics, Inc. on SentiSense.