PTCT: Ptc Therapeutics Inc insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 8 sales totaling $1.23M in the last 180 days.
Insider sales
| Trade date | Insider | Role | Value | 10b5-1 plan |
|---|---|---|---|---|
| 2026-10-14 | Schmertzler Michael | Director | $126K | yes |
| 2026-10-14 | Schmertzler Michael | Director | $23K | yes |
| 2026-10-09 | Boulding Mark Elliott | Officer | $12K | yes |
| 2026-10-07 | Schmertzler Michael | Director | $155K | yes |
| 2026-10-07 | Schmertzler Michael | Director | $3K | yes |
| 2026-10-06 | Boulding Mark Elliott | Officer | $28K | yes |
| 2026-10-05 | Boulding Mark Elliott | Officer | $105K | yes |
| 2026-09-30 | Steele Glenn Jr Md Phd | Director | $782K | yes |
Institutional ownership (Q2 2026)
383 institutions reported holding $7.97B of Ptc Therapeutics Inc on Form 13F (353 the quarter before). 72 opened a new position and 44 sold out. Shares held by institutions: +5%.
| Largest holders | Shares | Value |
|---|---|---|
| BlackRock, Inc. | 13,964,554 | $1.14B |
| RTW INVESTMENTS, LP | 7,746,415 | $631.88M |
| Jupiter Topco LLC | 7,236,402 | $590.18M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4,928,111 | $401.99M |
| STATE STREET CORP | 4,598,952 | $375.14M |
| WELLINGTON MANAGEMENT GROUP LLP | 4,128,273 | $336.74M |
| VANGUARD CAPITAL MANAGEMENT LLC | 3,739,127 | $305.00M |
| GEODE CAPITAL MANAGEMENT, LLC | 2,207,376 | $180.09M |
| TORONTO DOMINION BANK | 2,165,846 | $176.67M |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 1,956,156 | $159.56M |
Get new insider and activist filings the morning after: daily alerts. Not investment advice.