PTCT affiliate files Form 144 to sell 17,566 shares

PTCT affiliate submitted a Form 144 notice to sell securities on 06/10/2026.

Rhea-AI Filing Summary

PTCT affiliate submitted a Form 144 notice to sell securities on 06/10/2026. The filing lists 17,566 shares tied to a Stock Option Exercise and 3,711 shares tied to Restricted Stock Vesting, with a broker listed as Fidelity Brokerage Services LLC.

Key Figures

Option-exercise shares to be sold: 17,566 shares Restricted stock shares to be sold: 3,711 shares Combined referenced shares: 21,277 shares +4 more

7 metrics

Option-exercise shares to be sold 17,566 shares Stock Option Exercise dated 06/10/2026

Restricted stock shares to be sold 3,711 shares Restricted Stock Vesting dated 01/03/2026

Combined referenced shares 21,277 shares Sum of listed option exercise and vested restricted stock (component totals shown in filing)

Date of proposed sale 06/10/2026 Form 144 proposed sale date

Broker/dealer listed Fidelity Brokerage Services LLC Broker listed in the filing (address shown)

Reference number or amount field 1,595,775.00 Numeric value present in the filing excerpt (exact label not provided in excerpt)

Reference numeric field 82,949,338 Numeric value present in the filing excerpt (exact label not provided in excerpt)

Key Terms

Form 144, Stock Option Exercise, Restricted Stock Vesting

3 terms

Form 144 regulatory

"Filer Information | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Stock Option Exercise financial

"Common | 06/10/2026 | Stock Option Exercise"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Restricted Stock Vesting financial

"Common | 01/03/2026 | Restricted Stock Vesting"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the PTCT Form 144 filing report?

The filing reports a proposed sale on 06/10/2026 of 17,566 shares from a stock option exercise and 3,711 shares from restricted stock vesting, using Fidelity Brokerage Services LLC as broker.

Who is the broker handling the PTCT sale in the Form 144?

The broker is listed as Fidelity Brokerage Services LLC at 900 Salem Street, Smithfield, RI. The filing identifies this broker in connection with the proposed sale dated 06/10/2026.

How many PTCT shares are covered by the Form 144 notice?

The notice covers a total of 21,277 shares when summing 17,566 (option exercise) and 3,711 (restricted stock vesting). The filing lists each component separately on 06/10/2026.

Does the Form 144 state when the securities became eligible for sale?

The filing shows the proposed sale date as 06/10/2026 and records the restricted stock vesting date as 01/03/2026. It lists the option exercise and sale activity dated 06/10/2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/10/2026 - 12:51 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001323212
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	PTC THERAPEUTICS, INC.
SEC File Number	001-35969
Address of Issuer	500 WARREN CORPORATE CENTER DRIVE WARREN NEW JERSEY 07059
Phone	9082227000
Name of Person for Whose Account the Securities are To Be Sold	Pauwels Eric
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	21277	1595775.00	82949338	06/10/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	06/10/2026	Stock Option Exercise	Issuer			17566	06/10/2026	Cash
Common	01/03/2026	Restricted Stock Vesting	Issuer			3711	01/03/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	06/10/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	02/25/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Eric Pauwels
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)