FolioLanternBeta
PTCTPtc Therapeutics, Inc.

Michael Schmertzler

Director at Ptc Therapeutics, Inc., as of Oct 9, 2026Sold $6.5M of stock in the past 12 months: 100% under a disclosed plan.

Updated Oct 15, 2026 from SEC filings · covers Oct 16, 2025 to Oct 15, 2026
93K
shares sold, past 12 months
9
days with sales
$917K
largest single day, Aug 19, 2026
2
companies filed for

Share of stake sold and shares held at Ptc Therapeutics, Inc. are not shown: the holdings do not reconcile with the filings. Why

Selling by month

Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

Disclosed planOne dollar scale for every month; the tallest bar is labeled
OctNovDecJanFebMarAprMayJunJulAug 2026: $3.6M under a disclosed plan$3.6MAugSep 2026: $2.7M under a disclosed planSepOct 2026: $158K under a disclosed planOct

Pattern

What the filings show, past 12 months. Nothing here rates or predicts.

Roles from filings

Every company we track where this person has filed, newest filing first.

CompanyTitleFirst filingLatest filing
Ptc Therapeutics, Inc. (PTCT)DirectorJun 19, 2013Oct 9, 2026
Cytokinetics Inc (CYTK)Former DirectorApr 29, 2004Jun 4, 2010

Also a director at

Cytokinetics Inc (CYTK) (no filing in the last 18 months)

Recent filings

The last 5 days with transactions, newest first, one line per trade date. Each number links to an SEC filing.

This page shows only what this person reported on SEC ownership filings. See the methodology. Spotted something wrong? Report an error.