Michael Schmertzler, Director, 10% Owner at PTC THERAPEUTICS, INC. (PTCT), bought 533,333 shares at $15.00 ($8.0M) on 2013-06-25, disclosed to the SEC on 2013-06-27.
Open-market purchase of $8.0M PTCT by Director, 10% Owner. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Nothing distinguishes this filing.
| Filing → |
| PTCT | SELL | 2026-09-18 | $1.3M | — | Filing → |
| PTCT | SELL | 2026-09-11 | $1.4M | — | Filing → |
| PTCT | SELL | 2026-08-28 | $1.8M | — | Filing → |