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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
Matthew B. KleinCHIEF EXECUTIVE OFFICER2026-03-122,662$64.08
$170.58kSell
Stephanie OkeyDirector2026-03-1014,000$70.00
$980.00kSell
Stephanie OkeyDirector2026-03-101,167$33.63
$39.25kBuy
Stephanie OkeyDirector2026-03-101,167$70.00
$81.69kSell
Stephanie OkeyDirector2026-03-1014,000$33.63
$470.82kBuy
Lee Scott GoldenEVP CHIEF MEDICAL OFFICER2026-03-0510,000$63.38
$633.80kSell
Stephanie OkeyDirector2026-03-056,333$63.38
$401.39kSell
Neil Gregory AlmsteadCHIEF TECHNICAL OPS OFFICER2026-03-053,989$63.38
$252.82kSell
Mark Elliott BouldingEXEC. VP AND CLO2026-02-19590$69.82
$41.19kSell
Mark Elliott BouldingEXEC. VP AND CLO2026-02-191,629$69.82
$113.74kSell

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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 Inc15.44%12,779,065$824.12MInstitution
Vanguard Group Inc10.64%8,803,203$567.72MInstitution
Rtw Investments LP9.36%7,746,415$499.57MInstitution
Janus Henderson Group PLC5.86%4,851,332$312.86MInstitution
State Street Corp5.08%4,206,126$271.25MInstitution
Toronto Dominion Bank5.00%4,138,215$266.87MInstitution
Wellington Management Group LLP4.67%3,867,380$249.41MInstitution
Michael Schmertzler4.60%3,806,742$245.50MInsider
Armistice Capital LLC3.38%2,801,869$180.69MInstitution
Hbm Healthcare Investments Cayman Ltd2.95%2,441,504$157.45MInsider

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PTCT vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
PTCT86.44%13.56%Net SellingNet Selling
CGON85.41%14.59%Net BuyingNet Buying
MIRM53.75%46.25%Net BuyingNet Buying
CELC80.37%19.63%Net BuyingNet Selling
BLTE22.59%0.00%
View Top Biotech Stocks

Ptc Therapeutics Stock Ownership FAQ

Who owns Ptc Therapeutics?

Ptc Therapeutics (NASDAQ: PTCT) is owned by 111.16% institutional shareholders, 17.44% Ptc Therapeutics insiders, and 0.00% retail investors. Michael Schmertzler is the largest individual Ptc Therapeutics shareholder, owning 3.81M shares representing 4.60% of the company. Michael Schmertzler's Ptc Therapeutics shares are currently valued at $253.95M.

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