PTC THERAPEUTICS, INC. insider trading
PTCT$63.65+0.19 (+0.30% today)
“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.”
Insider Trading vs Stock Price
Insider Trading vs Stock Price data
Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (-1.8%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Open market purchase
Open market sellNet dollar flow · Buy / Sell balance
PremiumQ2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26
Unlock quarterly net flowKey players
- MSMichael Schmertzler1.7492%
- MBMatthew B. Klein0.4599%
- MEMark Elliott Boulding0.1261%
- PGPierre Gravier0.1006%
- LSLee Scott Golden0.0948%
- EPEric Pauwels0.088%
- CMChristine Marie Utter0.0841%
- NGNeil Gregory Almstead0.0757%
- HEHege Elisabeth Sollie-Zetlmayer0.0629%
- GSGlenn Steele Jr. M.D. Ph.D.0.027%
AI Activity Analysis
PremiumComing soon
Insider activity
Fromto
| Company | Insider / role | Action | ΔOwn | Avg price | Amount | ||
|---|---|---|---|---|---|---|---|
| PTCT | Michael Schmertzler | Open market sell$25.7K | 0.0% | $68.45 | $25.7K | Sep 17, 2026 | Sep 18, 2026 |
| PTCT | Michael Schmertzler | Open market sell$653K | -0.7% | $67.83 | $653K | Sep 17, 2026 | Sep 18, 2026 |
| PTCT | Michael Schmertzler | Open market sell$472K | -0.5% | $67.35 | $472K | Sep 16, 2026 | Sep 18, 2026 |
| PTCT | Michael Schmertzler | Open market sell$199K | -0.2% | $66.58 | $199K | Sep 16, 2026 | Sep 18, 2026 |
| PTCT | Michael Schmertzler | Open market sell$673K | -0.8% | $67.34 | $673K | Sep 10, 2026 | Sep 11, 2026 |
| PTCT | Michael Schmertzler | Open market sell$39.3K | 0.0% | $68.67 | $39.3K | Sep 9, 2026 | Sep 11, 2026 |
| PTCT | Michael Schmertzler | Open market sell$639K | -0.7% | $67.79 | $639K | Sep 9, 2026 | Sep 11, 2026 |
| PTCT | Michael Schmertzler | Open market sell$44.1K | 0.0% | $72.22 | $44.1K | Aug 27, 2026 | Aug 28, 2026 |
| PTCT | Michael Schmertzler | Open market sell$851K | -0.8% | $71.55 | $851K | Aug 27, 2026 | Aug 28, 2026 |
| PTCT | Michael Schmertzler | Open market sell$412K | -0.4% | $73.18 | $412K | Aug 26, 2026 | Aug 28, 2026 |
| PTCT | Michael Schmertzler | Open market sell$500K | -0.5% | $72.74 | $500K | Aug 26, 2026 | Aug 28, 2026 |
| PTCT | Michael Schmertzler | Open market sell$50.4K | -0.1% | $72.92 | $50.4K | Aug 20, 2026 | Aug 21, 2026 |
| PTCT | Michael Schmertzler | Open market sell$172K | -0.2% | $71.88 | $172K | Aug 20, 2026 | Aug 21, 2026 |
| PTCT | Michael Schmertzler | Open market sell$667K | -0.6% | $70.78 | $667K | Aug 20, 2026 | Aug 21, 2026 |
| PTCT | Michael Schmertzler | Open market sell$528K | -0.5% | $73.67 | $528K | Aug 19, 2026 | Aug 21, 2026 |
| PTCT | Michael Schmertzler | Open market sell$389K | -0.3% | $72.86 | $389K | Aug 19, 2026 | Aug 21, 2026 |
| PTCT | Matthew B. Klein | Open market sell$706K | -2.6% | $68.57 | $706K | Aug 4, 2026 | Aug 6, 2026 |
| PTCT | Pierre Gravier | Open market sell$281K | -4.0% | $80.35 | $281K | Jul 14, 2026 | Jul 16, 2026 |
| PTCT | Matthew B. Klein | Open market sell$186K | -0.7% | $72.46 | $186K | May 14, 2026 | May 15, 2026 |
| PTCT | Matthew B. Klein | Open market sell$153K | -0.5% | $73.08 | $153K | May 14, 2026 | May 15, 2026 |
| PTCT | Matthew B. Klein | Open market sell$528K | -1.8% | $73.08 | $528K | May 14, 2026 | May 15, 2026 |
| PTCT | Matthew B. Klein | Open market sell$49.6K | -0.2% | $73.06 | $49.6K | May 14, 2026 | May 15, 2026 |
| PTCT | Matthew B. Klein | Open market sell$202K | -0.7% | $70.91 | $202K | Apr 21, 2026 | Apr 23, 2026 |
| PTCT | Lee Scott Golden | Open market sell$56.4K | -1.0% | $67.99 | $56.4K | Apr 2, 2026 | Apr 6, 2026 |
| PTCT | Neil Gregory Almstead | Open market sell$5.62K | -0.1% | $70.30 | $5.62K | Apr 1, 2026 | Apr 3, 2026 |
| PTCT | Neil Gregory Almstead | Open market sell$871K | -16.6% | $69.50 | $871K | Apr 1, 2026 | Apr 3, 2026 |
| PTCT | Neil Gregory Almstead | Open market sell$2.71M | -34.3% | $68.89 | $2.71M | Apr 1, 2026 | Apr 3, 2026 |
| PTCT | Matthew B. Klein | Open market sell$171K | -0.7% | $64.08 | $171K | Mar 12, 2026 | Mar 13, 2026 |
| PTCT | Stephanie Okey | Open market sell$401K | -44.2% | $63.38 | $401K | Mar 5, 2026 | Mar 9, 2026 |
| PTCT | Lee Scott Golden | Open market sell$634K | -11.1% | $63.38 | $634K | Mar 5, 2026 | Mar 9, 2026 |
| PTCT | Neil Gregory Almstead | Open market sell$253K | -3.4% | $63.38 | $253K | Mar 5, 2026 | Mar 9, 2026 |
| PTCT | Mark Elliott Boulding | Open market sell$41.2K | -0.6% | $69.82 | $41.2K | Feb 19, 2026 | Feb 23, 2026 |
| PTCT | Mark Elliott Boulding | Open market sell$14.5K | -0.2% | $68.54 | $14.5K | Feb 19, 2026 | Feb 23, 2026 |
| PTCT | Mark Elliott Boulding | Open market sell$114K | -1.5% | $69.82 | $114K | Feb 19, 2026 | Feb 23, 2026 |
| PTCT | Mark Elliott Boulding | Open market sell$40.3K | -0.5% | $68.54 | $40.3K | Feb 19, 2026 | Feb 23, 2026 |
| PTCT | Pierre Gravier | Open market sell$208K | -3.3% | $69.36 | $208K | Feb 18, 2026 | Feb 20, 2026 |
| PTCT | Matthew B. Klein | Open market sell$511K | -1.9% | $69.36 | $511K | Feb 18, 2026 | Feb 20, 2026 |
| PTCT | Christine Marie Utter | Open market sell$173K | -3.4% | $69.36 | $173K | Feb 18, 2026 | Feb 20, 2026 |
| PTCT | Lee Scott Golden | Open market sell$172K | -2.7% | $69.36 | $172K | Feb 18, 2026 | Feb 20, 2026 |
| PTCT | Mark Elliott Boulding | Open market sell$214K | -2.8% | $69.36 | $214K | Feb 18, 2026 | Feb 19, 2026 |
| PTCT | Neil Gregory Almstead | Open market sell$4.51K | -0.1% | $69.36 | $4.51K | Feb 18, 2026 | Feb 20, 2026 |
| PTCT | Neil Gregory Almstead | Open market sell$212K | -2.5% | $69.36 | $212K | Feb 18, 2026 | Feb 20, 2026 |
| PTCT | Eric Pauwels | Open market sell$209K | -3.8% | $69.36 | $209K | Feb 18, 2026 | Feb 20, 2026 |
| PTCT | Eric Pauwels | Open market sell$80.6K | -1.3% | $78.70 | $80.6K | Jan 12, 2026 | Jan 12, 2026 |
| PTCT | Mark Elliott Boulding | Open market sell$8.51K | -0.1% | $79.52 | $8.51K | Jan 9, 2026 | Jan 12, 2026 |
| PTCT | Mark Elliott Boulding | Open market sell$54K | -0.6% | $78.71 | $54K | Jan 9, 2026 | Jan 12, 2026 |
| PTCT | Mark Elliott Boulding | Open market sell$118K | -1.3% | $77.46 | $118K | Jan 9, 2026 | Jan 12, 2026 |
| PTCT | Eric Pauwels | Open market sell$133K | -2.1% | $77.41 | $133K | Jan 9, 2026 | Jan 12, 2026 |
| PTCT | Matthew B. Klein | Open market sell$192K | -0.6% | $76.45 | $192K | Jan 8, 2026 | Jan 12, 2026 |
| PTCT | Christine Marie Utter | Open market sell$79K | -1.4% | $76.45 | $79K | Jan 8, 2026 | Jan 12, 2026 |