Form4insider filings, from the source

Company · CIK 0001070081 · SIC 2834 — Pharmaceutical Preparations · Nasdaq

PTC THERAPEUTICS, INC. · PTCT

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $13.7M · 11net −$13.7M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesJun 28Jul 13Jul 28Aug 13Aug 28Sep 13Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 16, 2026 SForm 4 →Sep 18, 5:20 pm EDTMichael SchmertzlerDirector20,000$67.49$1,349,7281,296,594−1.52%10b5-1
Sep 9, 2026 SForm 4 →Sep 11, 5:20 pm EDTMichael SchmertzlerDirector20,000$67.59$1,351,8031,316,594−1.50%10b5-1
Aug 26, 2026 SForm 4 →Aug 28, 5:20 pm EDTMichael SchmertzlerDirector25,000$72.26$1,806,5091,336,594−1.84%10b5-1
Aug 19, 2026 SForm 4 →Aug 21, 5:20 pm EDTMichael SchmertzlerDirector25,000$72.22$1,805,4111,361,594−1.80%10b5-1
Aug 17, 2026 SForm 4 →Aug 19, 5:20 pm EDTMark Elliott BouldingEXEC. VP AND CLO2,813$72.57$204,127105,272−2.60%10b5-1
Aug 17, 2026 MForm 4 →Aug 19, 5:20 pm EDTMark Elliott BouldingEXEC. VP AND CLO2,813$25.69$72,266108,085—10b5-1
Aug 4, 2026 SForm 4 →Aug 6, 5:20 pm EDTMatthew B. KleinCHIEF EXECUTIVE OFFICER, Director10,292$68.57$705,722383,868−2.61%10b5-1
Jul 28, 2026 AForm 4 →Jul 30, 9:02 pm EDTHege Elisabeth Sollie-ZetlmayerDirector6,000——52,526—
Jul 14, 2026 SForm 4 →Jul 16, 5:20 pm EDTPierre GravierCHIEF FINANCIAL OFFICER3,494$80.35$280,74383,986−3.99%10b5-1
Jul 9, 2026 SForm 4 →Jul 13, 5:20 pm EDTMary L. SmithDirector15,834$90.00$1,425,06021,813−42.1%10b5-1
Jul 9, 2026 MForm 4 →Jul 13, 5:20 pm EDTMary L. SmithDirector15,834$42.95$680,07027,647—10b5-1
Jul 9, 2026 SForm 4 →Jul 13, 5:20 pm EDTNeil Gregory AlmsteadCHIEF TECHNICAL OPS OFFICER2,464$90.25$222,37660,299−3.93%10b5-1
Jul 9, 2026 MForm 4 →Jul 13, 5:20 pm EDTNeil Gregory AlmsteadCHIEF TECHNICAL OPS OFFICER2,464$46.54$114,67562,763—10b5-1
Jul 6, 2026 SForm 4 →Jul 8, 5:20 pm EDTMark Elliott BouldingEXEC. VP AND CLO5,079$85.08$432,118105,272−4.60%10b5-1
Jul 6, 2026 MForm 4 →Jul 8, 5:20 pm EDTMark Elliott BouldingEXEC. VP AND CLO5,079$43.36$220,243108,085—10b5-1
Jul 6, 2026 SForm 4 →Jul 8, 5:20 pm EDTNeil Gregory AlmsteadCHIEF TECHNICAL OPS OFFICER46,774$87.52$4,093,48260,299−43.7%10b5-1
Jul 6, 2026 MForm 4 →Jul 8, 5:20 pm EDTNeil Gregory AlmsteadCHIEF TECHNICAL OPS OFFICER46,774$38.86$1,817,84484,912—10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 17, 2026 MForm 4 →Aug 19, 5:20 pm EDTMark Elliott BouldingEXEC. VP AND CLO2,813——16,876—10b5-1
Jul 28, 2026 AForm 4 →Jul 30, 9:02 pm EDTHege Elisabeth Sollie-ZetlmayerDirector5,213——1,738—
Jul 9, 2026 MForm 4 →Jul 13, 5:20 pm EDTMary L. SmithDirector15,834——0—10b5-1
Jul 9, 2026 MForm 4 →Jul 13, 5:20 pm EDTNeil Gregory AlmsteadCHIEF TECHNICAL OPS OFFICER2,464——45,036—10b5-1
Jul 6, 2026 MForm 4 →Jul 8, 5:20 pm EDTMark Elliott BouldingEXEC. VP AND CLO5,039——28,125—10b5-1
Jul 6, 2026 MForm 4 →Jul 8, 5:20 pm EDTNeil Gregory AlmsteadCHIEF TECHNICAL OPS OFFICER46,774——9,063—10b5-1