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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
Michael SchmertzlerDirector2026-09-1010,000$67.34
$673.40kSell
Michael SchmertzlerDirector2026-09-099,428$67.79
$639.12kSell
Michael SchmertzlerDirector2026-09-09572$68.67
$39.28kSell
Michael SchmertzlerDirector2026-08-2711,890$71.55
$850.73kSell
Michael SchmertzlerDirector2026-08-27610$72.22
$44.05kSell
Michael SchmertzlerDirector2026-08-265,626$73.18
$411.71kSell
Michael SchmertzlerDirector2026-08-266,874$72.74
$500.01kSell
Michael SchmertzlerDirector2026-08-20691$72.92
$50.39kSell
Michael SchmertzlerDirector2026-08-209,419$70.78
$666.68kSell
Michael SchmertzlerDirector2026-08-202,390$71.88
$171.79kSell

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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
Michael Schmertzler6.14%5,123,336$336.35MInsider
Hbm Healthcare Investments Cayman Ltd2.93%2,441,504$160.28MInsider
Adam Koppel2.80%2,333,333$153.18MInsider
Suisse Ag 1. Credit2.70%2,256,882$148.16MInsider
Vulcan Ventures Inc2.04%1,701,731$111.72MInsider
Matthew B. Klein0.46%383,868$25.20MInsider
Richard Aldrich0.36%300,000$19.70MInsider
Stuart Walter Peltz0.27%221,865$14.57MInsider
Mark Elliott Boulding0.13%105,272$6.91MInsider
Pierre Gravier0.10%83,986$5.51MInsider

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PTCT vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
PTCT0.12%18.86%Net SellingNet Selling
COGT0.11%8.01%Net SellingNet Buying
DNTH0.12%60.34%Net BuyingNet Buying
XENE0.10%2.58%Net SellingNet Selling
LGND0.02%99.98%Net SellingNet Selling
View Top Biotech Stocks

Ptc Therapeutics Stock Ownership FAQ

Who owns Ptc Therapeutics?

Ptc Therapeutics (NASDAQ: PTCT) is owned by 0.12% institutional shareholders, 18.86% Ptc Therapeutics insiders, and 81.02% retail investors. Michael Schmertzler is the largest individual Ptc Therapeutics shareholder, owning 5.12M shares representing 6.14% of the company. Michael Schmertzler's Ptc Therapeutics shares are currently valued at $346.29M.

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