Michael Schmertzler is Director at PTC THERAPEUTICS, INC. (PTCT). They have made 12 open-market trades across 2 companies since 2009, most recently 2026-10-14.
CIK 0001288952
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
4 open-market purchases totalling $13.6M since 2009, against 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PTCT | SELL · 10b5-1 | 2026-10-14 | 2026-10-16 | $59.61 | $149K | — | — | — |
| PTCT | SELL · 10b5-1 | 2026-10-07 | 2026-10-09 | $63.39 | $158K | — | — | — |
| PTCT | SELL · 10b5-1 | 2026-09-16 | 2026-09-18 | $67.49 | $1.3M | -1.9% | — | — |
| PTCT | SELL · 10b5-1 | 2026-09-09 | 2026-09-11 | $67.59 | $1.4M | -7.1% | -6.2% | — |
| PTCT | SELL · 10b5-1 | 2026-08-26 | 2026-08-28 | $72.26 | $1.8M | -3.3% | -5.4% | — |
| PTCT | SELL · 10b5-1 | 2026-08-19 | 2026-08-21 | $72.22 | $1.8M | +3.2% | -6.1% | — |
| PTCT | SELL · 10b5-1 | 2024-01-08 | 2024-01-10 | $27.81 | $42K | -1.7% | -10.3% | -3.0% |
| PTCT | SELL · 10b5-1 | 2023-06-07 | 2023-06-09 | $44.86 | $45K | -3.0% | -6.8% | -3.3% |
| PTCT | BUY | 2020-03-16 | 2020-03-18 | $32.48 | $650K | +13.2% | +32.5% | +34.7% |
| PTCT | BUY | 2019-01-25 | 2019-01-29 | $30.20 | $2.0M | +3.1% | +19.8% | +33.0% |
| PTCT | BUY | 2013-06-25 | 2013-06-27 | $15.00 | $8.0M | -28.3% | -2.3% | -2.3% |
| CYTK | SELL | 2010-06-03 | 2010-06-04 | $3.00 | $16K | -13.7% | -2.2% | -2.2% |
| CYTK | SELL | 2010-05-27 | 2010-05-28 | $3.00 | $173K | -13.7% | -2.2% | -2.2% |
| CYTK | SELL | 2010-05-19 | 2010-05-20 | $3.00 | $49K | -13.7% | -2.2% | -2.2% |
| CYTK | SELL | 2010-05-18 | 2010-05-19 | $3.00 | $1.2M | -13.7% | -2.2% | -2.2% |
| CYTK | SELL | 2010-05-12 | 2010-05-13 | $3.00 | $248K | -13.7% | -2.2% | -2.2% |
| CYTK | SELL | 2010-05-11 | 2010-05-13 | $3.00 | $110K | -13.7% | -2.2% | -2.2% |
| CYTK | SELL | 2010-05-06 | 2010-05-07 | $3.03 | $101K | -13.7% | -2.2% | -2.2% |
| CYTK | SELL | 2010-05-05 | 2010-05-07 | $3.04 | $1.2M | -13.7% | -2.2% | -2.2% |
| CYTK | BUY | 2009-05-21 | 2009-05-22 | $1.97 | $3.0M | -13.7% | -2.2% | -2.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.