PTC Therapeutics, Inc. (PTCT) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for PTCT. 13F holdings as of 2026-03-31.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 12,948,717 | $882M | INCREASED |
| RTW INVESTMENTS, LP | 7,746,415 | $528M | UNCHANGED |
| JANUS HENDERSON GROUP PLC | 7,193,433 | $490M | INCREASED |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4,804,594 | $327M | NEW |
| STATE STREET CORP | 4,346,519 | $296M | INCREASED |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|---|---|---|---|
| Mark Elliott Boulding (EXEC. VP AND CLO) | EXERCISE | 2,012 | $94K | 2026-06-17 |
| Mark Elliott Boulding (EXEC. VP AND CLO) | EXERCISE | 8,510 | $396K | 2026-06-17 |
| Mark Elliott Boulding (EXEC. VP AND CLO) | SELL | 309 | $24K | 2026-06-17 |
| Mark Elliott Boulding (EXEC. VP AND CLO) | SELL | 1,703 | $134K | 2026-06-17 |
| Mark Elliott Boulding (EXEC. VP AND CLO) | SELL | 1,850 | $147K | 2026-06-17 |
Full institutional holdings, insider history, and congressional trades for PTC Therapeutics, Inc. on SentiSense.