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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
Pierre GravierCFO2026-07-143,494$80.35
$280.74kSell
Neil Gregory AlmsteadCHIEF TECHNICAL OPS OFFICER2026-07-092,464$46.54
$114.67kBuy
Neil Gregory AlmsteadCHIEF TECHNICAL OPS OFFICER2026-07-092,464$90.25
$222.38kSell
Mary L. SmithDirector2026-07-0910,000$42.95
$429.50kBuy
Mary L. SmithDirector2026-07-0910,000$90.00
$900.00kSell
Mary L. SmithDirector2026-07-095,834$42.95
$250.57kBuy
Mary L. SmithDirector2026-07-095,834$90.00
$525.06kSell
Neil Gregory AlmsteadCHIEF TECHNICAL OPS OFFICER2026-07-0711,369$89.03
$1.01MSell
Neil Gregory AlmsteadCHIEF TECHNICAL OPS OFFICER2026-07-073,956$87.17
$344.84kSell
Neil Gregory AlmsteadCHIEF TECHNICAL OPS OFFICER2026-07-079,288$89.44
$830.72kSell

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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$977.89MInstitution
Rtw Investments LP9.34%7,746,415$585.01MInstitution
Janus Henderson Group PLC8.67%7,193,433$543.25MInstitution
Vanguard Portfolio Management LLC5.79%4,804,594$362.84MInstitution
State Street Corp5.24%4,346,519$328.25MInstitution
Wellington Management Group LLP4.75%3,942,610$297.75MInstitution
Michael Schmertzler4.59%3,806,742$287.49MInsider
Vanguard Capital Management LLC4.43%3,676,256$277.63MInstitution
Toronto Dominion Bank3.65%3,025,963$228.52MInstitution
Hbm Healthcare Investments Cayman Ltd2.94%2,441,504$184.38MInsider

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PTCT vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
PTCT86.87%13.13%Net SellingNet Selling
SRRK61.89%38.11%Net BuyingNet Selling
ERAS76.07%23.93%Net Buying
LGND18.49%81.51%Net SellingNet Selling
KNSA58.21%10.38%Net SellingNet Selling
View Top Biotech Stocks

Ptc Therapeutics Stock Ownership FAQ

Who owns Ptc Therapeutics?

Ptc Therapeutics (NASDAQ: PTCT) is owned by 114.42% institutional shareholders, 17.29% Ptc Therapeutics insiders, and 0.00% retail investors. Michael Schmertzler is the largest individual Ptc Therapeutics shareholder, owning 3.81M shares representing 4.56% of the company. Michael Schmertzler's Ptc Therapeutics shares are currently valued at $258.90M.

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