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PTC Therapeutics, Inc.

PTCT
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001070081

In the last 90 days, PTC Therapeutics, Inc. insiders filed 0 open-market purchases and 12 sales; 384 institutions reported holding it in 13F filings for Q2 2026, worth $8.28B in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by PTC Therapeutics, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
12 filings
6 insiders, $14.4M in total
Insiders trading
6
Net value
−$14.4M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for PTC Therapeutics, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for PTC Therapeutics, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Schmertzler MichaelDirector1,296,594IndirectSep 18, 20266
Boulding Mark ElliottEXEC. VP AND CLO105,272Aug 19, 202614
Klein Matthew B.CHIEF EXECUTIVE OFFICER383,868Aug 6, 202610
Sollie-Zetlmayer Hege ElisabethDirector52,526Jul 30, 20261
Gravier PierreCHIEF FINANCIAL OFFICER83,986Jul 16, 20264
Smith Mary L.Director21,813Jul 13, 20262
Almstead Neil GregoryCHIEF TECHNICAL OPS OFFICER60,299Jul 13, 202614
Utter Christine MarieSVP, CHIEF ACCOUNTING OFFICER70,199Jun 22, 20265
Pauwels EricCHIEF BUSINESS OFFICER73,411Jun 12, 20267
Golden Lee ScottEVP & CHIEF MEDICAL OFFICER79,115Apr 6, 20266
Chutter Jessica CarolineDirector7,333Mar 26, 20261
Okey StephanieDirector8,000Mar 12, 20264
Southwell David PDirector20,850Jan 6, 20261
Steele Glenn Jr MD PhDDirector22,500Jan 6, 20261
Zeldis Jerome BDirector22,500Jan 6, 20261
Jacobson Allan StevenDirector21,451Jan 6, 20263
Reeve EmmaDirector10,666Jan 6, 20266
Young AlethiaDirector21,067Jan 6, 20261
Bell William F. Jr.Director10,333Feb 16, 20240
Hill Emily LuisaCHIEF FINANCIAL OFFICER38,925Mar 29, 20230
Peltz Stuart WalterCHIEF EXECUTIVE OFFICER54,903IndirectFeb 2, 20230
Svoronos DawnDirector29,017Jun 10, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Sep 18, 2026 (view filing)5:20 PM ETSep 16-172 daysSchmertzler MichaelDirectorSSale−20.0K$67.49−$1.35M−1.5%1.30M after4 lots10b5-1
Sep 11, 2026 (view filing)5:20 PM ETSep 9-102 daysSchmertzler MichaelDirectorSSale−20.0K$67.59−$1.35M−1.5%1.32M after3 lots10b5-1
Aug 28, 2026 (view filing)5:20 PM ETAug 26-272 daysSchmertzler MichaelDirectorSSale−25.0K$72.26−$1.81M−1.8%1.34M after4 lots10b5-1
Aug 21, 2026 (view filing)5:20 PM ETAug 19-202 daysSchmertzler MichaelDirectorSSale−25.0K$72.22−$1.81M−1.8%1.36M after5 lots10b5-1
Aug 19, 2026 (view filing)5:20 PM ETAug 172 daysBoulding Mark ElliottEXEC. VP AND CLOSSale−2.81K$72.57−$204.1K−2.6%105.3K after2 lots10b5-1
Aug 6, 2026 (view filing)5:20 PM ETAug 42 daysKlein Matthew B.CHIEF EXECUTIVE OFFICERSSale−10.3K$68.57−$705.7K−2.6%383.9K after10b5-1
Jul 16, 2026 (view filing)5:20 PM ETJul 142 daysGravier PierreCHIEF FINANCIAL OFFICERSSale−3.49K$80.35−$280.7K−4.0%84.0K after10b5-1
Jul 13, 2026 (view filing)5:20 PM ETJul 94 daysSmith Mary L.DirectorSSale−15.8K$90.00−$1.43M−42.1%21.8K after2 lots10b5-1
Jul 13, 2026 (view filing)5:20 PM ETJul 94 daysAlmstead Neil GregoryCHIEF TECHNICAL OPS OFFICERSSale−2.46K$90.25−$222.4K−3.9%60.3K after10b5-1
Jul 8, 2026 (view filing)5:20 PM ETJul 62 daysBoulding Mark ElliottEXEC. VP AND CLOSSale−5.08K$85.08−$432.1K−4.6%105.3K after8 lots10b5-1
Jul 8, 2026 (view filing)5:20 PM ETJul 6-72 daysAlmstead Neil GregoryCHIEF TECHNICAL OPS OFFICERSSale−46.8K$87.52−$4.09M−43.7%60.3K after8 lots10b5-1
Jun 30, 2026 (view filing)Jun 264 daysAlmstead Neil GregoryCHIEF TECHNICAL OPS OFFICERSSale−8.13K$85.26−$693.2K−11.9%60.1K after2 lots10b5-1
Jun 26, 2026 (view filing)Jun 24-252 daysAlmstead Neil GregoryCHIEF TECHNICAL OPS OFFICERSSale−26.3K$85.78−$2.25M−30.4%60.1K after7 lots10b5-1
Jun 24, 2026 (view filing)Jun 222 daysAlmstead Neil GregoryCHIEF TECHNICAL OPS OFFICERSSale−23.7K$80.90−$1.92M−28.3%60.1K after2 lots10b5-1
Jun 22, 2026 (view filing)Jun 175 daysUtter Christine MarieSVP, CHIEF ACCOUNTING OFFICERSSale−19.7K$75.56−$1.49M−21.9%70.2K after10b5-1
Jun 22, 2026 (view filing)Jun 175 daysBoulding Mark ElliottEXEC. VP AND CLOSSale−10.5K$78.65−$822.9K−9.0%105.3K after4 lots10b5-1
Jun 12, 2026 (view filing)Jun 102 daysPauwels EricCHIEF BUSINESS OFFICERSSale−21.3K$75.00−$1.60M−22.5%73.4K after2 lots10b5-1
Jun 12, 2026 (view filing)Jun 102 daysPauwels EricCHIEF BUSINESS OFFICERSSale−17.6K$0.00$0–0 afterDerivative10b5-1
May 19, 2026 (view filing)May 154 daysBoulding Mark ElliottEXEC. VP AND CLOSSale−2.81K$72.18−$203.0K−2.6%105.2K after2 lots10b5-1
May 15, 2026 (view filing)May 141 dayKlein Matthew B.CHIEF EXECUTIVE OFFICERSSale−12.6K$72.95−$917.2K−3.1%394.0K after4 lots10b5-1
May 12, 2026 (view filing)May 84 daysBoulding Mark ElliottEXEC. VP AND CLOSSale−3.54K$78.97−$279.6K−3.3%105.2K after4 lots10b5-1
Apr 23, 2026 (view filing)Apr 212 daysKlein Matthew B.CHIEF EXECUTIVE OFFICERSSale−2.85K$70.91−$202.1K−0.7%394.1K after10b5-1
Apr 8, 2026 (view filing)Apr 62 daysBoulding Mark ElliottEXEC. VP AND CLOSSale−2.27K$69.45−$157.3K−2.1%105.2K after2 lots10b5-1
Apr 6, 2026 (view filing)Apr 24 daysGolden Lee ScottEVP & CHIEF MEDICAL OFFICERSSale−829$67.99−$56.4K−1.0%79.1K after10b5-1
Apr 3, 2026 (view filing)Apr 12 daysAlmstead Neil GregoryCHIEF TECHNICAL OPS OFFICERSSale−52.0K$69.04−$3.59M−46.4%60.1K after3 lots10b5-1
Mar 13, 2026 (view filing)Mar 121 dayKlein Matthew B.CHIEF EXECUTIVE OFFICERSSale−2.66K$64.08−$170.6K−0.7%396.9K after10b5-1
Mar 12, 2026 (view filing)Mar 102 daysOkey StephanieDirectorSSale−15.2K$70.00−$1.06M−65.5%8.00K after2 lots10b5-1
Mar 9, 2026 (view filing)Mar 54 daysOkey StephanieDirectorSSale−6.33K$63.38−$401.4K−44.2%8.00K after10b5-1
Mar 9, 2026 (view filing)Mar 54 daysGolden Lee ScottEVP & CHIEF MEDICAL OFFICERSSale−10.0K$63.38−$633.8K−11.1%79.9K after10b5-1
Mar 9, 2026 (view filing)Mar 54 daysAlmstead Neil GregoryCHIEF TECHNICAL OPS OFFICERSSale−3.99K$63.38−$252.8K−59.3%2.74K after10b5-1
Feb 23, 2026 (view filing)Feb 194 daysBoulding Mark ElliottEXEC. VP AND CLOSSale−3.02K$69.48−$209.8K−2.8%105.2K after4 lots10b5-1
Feb 20, 2026 (view filing)Feb 182 daysGravier PierreCHIEF FINANCIAL OFFICERSSale−2.99K$69.36−$207.5K−3.3%87.3K after10b5-1
Feb 20, 2026 (view filing)Feb 182 daysKlein Matthew B.CHIEF EXECUTIVE OFFICERSSale−7.37K$69.36−$511.3K−1.9%387.1K after10b5-1
Feb 20, 2026 (view filing)Feb 182 daysUtter Christine MarieSVP, CHIEF ACCOUNTING OFFICERSSale−2.49K$69.36−$173.0K−3.4%70.2K after10b5-1
Feb 20, 2026 (view filing)Feb 182 daysGolden Lee ScottEVP & CHIEF MEDICAL OFFICERSSale−2.48K$69.36−$172.3K−2.7%89.9K after10b5-1
Feb 20, 2026 (view filing)Feb 182 daysAlmstead Neil GregoryCHIEF TECHNICAL OPS OFFICERSSale−3.06K$69.36−$212.0K−2.7%112.1K after10b5-1
Feb 20, 2026 (view filing)Feb 182 daysAlmstead Neil GregoryCHIEF TECHNICAL OPS OFFICERSSale−65$69.36−$4.51K−1.0%6.73K after10b5-1
Feb 20, 2026 (view filing)Feb 182 daysPauwels EricCHIEF BUSINESS OFFICERSSale−3.02K$69.36−$209.4K−3.8%77.1K after10b5-1
Feb 19, 2026 (view filing)Feb 17-182 daysBoulding Mark ElliottEXEC. VP AND CLOSSale−5.89K$69.33−$408.6K−5.2%108.2K after3 lots10b5-1
Jan 12, 2026 (view filing)Jan 84 daysKlein Matthew B.CHIEF EXECUTIVE OFFICERSSale−2.51K$76.45−$192.2K−0.6%394.5K after10b5-1
Jan 12, 2026 (view filing)Jan 84 daysUtter Christine MarieSVP, CHIEF ACCOUNTING OFFICERSSale−1.03K$76.45−$79.0K−1.4%72.7K after10b5-1
Jan 12, 2026 (view filing)Jan 84 daysGolden Lee ScottEVP & CHIEF MEDICAL OFFICERSSale−866$76.45−$66.2K−0.9%92.4K after10b5-1
Jan 12, 2026 (view filing)Jan 8-94 daysBoulding Mark ElliottEXEC. VP AND CLOSSale−6.35K$77.06−$489.1K−5.4%111.3K after6 lots10b5-1
Jan 12, 2026 (view filing)Jan 84 daysAlmstead Neil GregoryCHIEF TECHNICAL OPS OFFICERSSale−881$76.45−$67.4K−0.8%115.2K after10b5-1
Jan 12, 2026 (view filing)Jan 84 daysAlmstead Neil GregoryCHIEF TECHNICAL OPS OFFICERSSale−59$76.45−$4.51K−0.9%6.79K after10b5-1
Jan 12, 2026 (view filing)Jan 8-124 daysPauwels EricCHIEF BUSINESS OFFICERSSale−7.35K$77.02−$565.9K−8.4%80.1K after5 lots10b5-1
Jan 8, 2026 (view filing)Jan 62 daysGravier PierreCHIEF FINANCIAL OFFICERSSale−2.14K$76.95−$164.6K−2.3%90.3K after10b5-1
Jan 8, 2026 (view filing)Jan 6-72 daysKlein Matthew B.CHIEF EXECUTIVE OFFICERSSale−8.16K$77.15−$629.9K−2.0%397.0K after2 lots10b5-1
Jan 8, 2026 (view filing)Jan 6-72 daysUtter Christine MarieSVP, CHIEF ACCOUNTING OFFICERSSale−2.62K$77.19−$201.9K−3.4%73.7K after2 lots10b5-1
Jan 8, 2026 (view filing)Jan 6-72 daysGolden Lee ScottEVP & CHIEF MEDICAL OFFICERSSale−1.98K$77.12−$152.9K−2.1%93.3K after2 lots10b5-1