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NASDAQ: PTCT
Ptc Therapeutics Inc Stock Ownership - Who owns Ptc Therapeutics?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Ptc Therapeutics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Eric PauwelsCHIEF BUSINESS OFFICER2026-06-1017,566$18.01
$316.36kBuy
Eric PauwelsCHIEF BUSINESS OFFICER2026-06-103,711$75.00
$278.33kSell
Eric PauwelsCHIEF BUSINESS OFFICER2026-06-1017,566$75.00
$1.32MSell
Mark Elliott BouldingEXEC. VP AND CLO2026-05-152,812$25.69
$72.24kBuy
Mark Elliott BouldingEXEC. VP AND CLO2026-05-152,356$72.08
$169.82kSell
Mark Elliott BouldingEXEC. VP AND CLO2026-05-15456$72.67
$33.14kSell
Matthew B. KleinCHIEF EXECUTIVE OFFICER2026-05-142,572$72.46
$186.37kSell
Matthew B. KleinCHIEF EXECUTIVE OFFICER2026-05-147,221$73.08
$527.71kSell
Matthew B. KleinCHIEF EXECUTIVE OFFICER2026-05-142,100$73.08
$153.47kSell
Matthew B. KleinCHIEF EXECUTIVE OFFICER2026-05-14679$73.06
$49.61kSell

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Net Insider Buy/Sell (L12M) Ownership

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PTCT Shareholders

What type of owners hold Ptc Therapeutics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Blackrock Inc15.61%12,948,717$994.07MInstitution
Rtw Investments LP9.34%7,746,415$594.69MInstitution
Janus Henderson Group PLC8.67%7,193,433$552.24MInstitution
Vanguard Portfolio Management LLC5.79%4,804,594$368.85MInstitution
State Street Corp5.24%4,346,519$333.68MInstitution
Wellington Management Group LLP4.75%3,942,610$302.67MInstitution
Michael Schmertzler4.59%3,806,742$292.24MInsider
Vanguard Capital Management LLC4.43%3,676,256$282.23MInstitution
Toronto Dominion Bank3.65%3,025,963$232.30MInstitution
Hbm Healthcare Investments Cayman Ltd2.94%2,441,504$187.43MInsider

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PTCT vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
PTCT86.91%13.09%Net SellingNet Selling
LQDA50.78%49.22%Net SellingNet Selling
RYTM88.74%11.26%Net SellingNet Buying
CNTA91.39%8.61%Net SellingNet Selling
MIRM56.48%43.52%Net BuyingNet Buying
View Top Biotech Stocks

Ptc Therapeutics Stock Ownership FAQ

Who owns Ptc Therapeutics?

Ptc Therapeutics (NASDAQ: PTCT) is owned by 115.13% institutional shareholders, 17.34% Ptc Therapeutics insiders, and 0.00% retail investors. Michael Schmertzler is the largest individual Ptc Therapeutics shareholder, owning 3.81M shares representing 4.59% of the company. Michael Schmertzler's Ptc Therapeutics shares are currently valued at $278.92M.

If you're new to stock investing, here's how to buy Ptc Therapeutics stock.
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