PTC Therapeutics, Inc. (PTCT) ownership: insiders 3% · institutions 118% (13F 2026-03-31). Insider activity, 90 days: Routine (45 sales, 0 open-market buys). SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| BlackRock | 12948717.00 | $882.20M | 15.5% | 2026-03-31 |
| Vanguard | 9163095.00 | $624.28M | 11.0% | 2026-03-31 |
| RTW Investments, LP | 7746415.00 | $527.76M | 9.3% | 2026-03-31 |
| Janus Henderson | 7193433.00 | $490.00M | 8.6% | 2026-03-31 |
| State Street | 4346519.00 | $296.13M | 5.2% | 2026-03-31 |
| Wellington Management | 3942610.00 | $268.61M | 4.7% | 2026-03-31 |
| TD Asset Management | 3025963.00 | $206.16M | 3.6% | 2026-03-31 |
| Geode Capital Management | 2209954.00 | $150.59M | 2.6% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-08-19 | |
| Sell | null | 2026-08-19 | |
| Sell | null | 2026-08-19 | |
| Sell | null | 2026-08-19 | |
| Sell | null | 2026-08-19 | |
| Sell | null | 2026-08-17 | |
| Sell | null | 2026-08-17 | |
| Sell | null | 2026-08-17 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.