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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 OFFICER2026-05-142,572$72.46
$186.37kSell
Matthew B. KleinCHIEF EXECUTIVE OFFICER2026-05-14679$73.06
$49.61kSell
Matthew B. KleinCHIEF EXECUTIVE OFFICER2026-05-147,221$73.08
$527.71kSell
Matthew B. KleinCHIEF EXECUTIVE OFFICER2026-05-142,100$73.08
$153.47kSell
Mark Elliott BouldingEXEC. VP AND CLO2026-05-081,900$79.31
$150.69kSell
Mark Elliott BouldingEXEC. VP AND CLO2026-05-082,740$46.54
$127.52kBuy
Mark Elliott BouldingEXEC. VP AND CLO2026-05-08840$78.23
$65.71kSell
Mark Elliott BouldingEXEC. VP AND CLO2026-05-08600$79.28
$47.57kSell
Mark Elliott BouldingEXEC. VP AND CLO2026-05-08800$46.54
$37.23kBuy
Mark Elliott BouldingEXEC. VP AND CLO2026-05-08200$78.00
$15.60kSell

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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
Vanguard Portfolio Management LLC5.79%4,804,594$343.38MInstitution
Michael Schmertzler4.59%3,806,742$272.07MInsider
Vanguard Capital Management LLC4.43%3,676,256$262.74MInstitution
Hbm Healthcare Investments Cayman Ltd2.94%2,441,504$174.49MInsider
Adam Koppel2.81%2,333,333$166.76MInsider
Suisse Ag 1. Credit2.72%2,256,882$161.30MInsider
Vulcan Ventures Inc2.05%1,701,731$121.62MInsider
Ubs Group Ag1.65%1,364,768$97.54MInstitution
Jefferies Financial Group Inc1.63%1,354,459$96.80MInstitution
Pictet Asset Management Holding Sa1.43%1,183,720$84.60MInstitution

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PTCT vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
PTCT28.93%17.35%Net SellingNet Selling
SRRK14.45%68.21%Net BuyingNet Buying
CGON14.84%16.00%Net BuyingNet Buying
TGTX23.39%48.65%Net Selling
CORT10.97%89.03%Net BuyingNet Buying
View Top Biotech Stocks

Ptc Therapeutics Stock Ownership FAQ

Who owns Ptc Therapeutics?

Ptc Therapeutics (NASDAQ: PTCT) is owned by 28.93% institutional shareholders, 17.35% Ptc Therapeutics insiders, and 53.72% 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 $272.07M.

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