PTC THERAPEUTICS, INC. 4

Mary L. Smith exercised options and sold a total of 15,834 shares of PTC Therapeutics, Inc. common stock at $90.00 per share on July 9, 2026, leaving her with 21,813 shares owned directly.

On July 9, 2026, Mary L. Smith of PTC Therapeutics, Inc. exercised two tranches of stock options for a total of 15,834 shares of common stock at an exercise price of $42.95 per share (10,000 shares and 5,834 shares, respectively) and immediately sold all 15,834 shares in open market transactions at $90.00 per share under a pre-established Rule 10b5-1 trading plan adopted on November 11, 2025. The option exercises were coded as “M” and resulted in acquisitions of 10,000 and 5,834 shares, which were then fully disposed of in two corresponding sales of 10,000 and 5,834 shares, leaving her direct ownership at 21,813 shares of common stock after the transactions. The Form 4 notes that the options are currently exercisable, and based on the sale price, the gross value of the shares sold was approximately $1.43 million, while her remaining equity stake, at the same price reference, is worth roughly $1.96 million.

Filing Facts

CIK

1070081

Ticker

PTCT

Form

4

Source Type

fda

Accession

0001866044-26-000005

Alert Tier

7