PTCT Rule 144 notice lists June sales and July option exercise

PTCT notice reports restricted/common shares sold under Rule 144 and a stock option exercise converted to common stock on 07/06/2026.

Rhea-AI Filing Summary

PTCT notice reports restricted/common shares sold under Rule 144 and a stock option exercise converted to common stock on 07/06/2026. The filing lists multiple dispositions by Neil G. Almstead in June 2026 with specific share counts and aggregate sale proceeds shown.

Key Figures

Sale on 06/22/2026: 23,749 shares Sale on 06/24/2026: 5,323 shares Sale on 06/25/2026: 20,960 shares +3 more

6 metrics

Sale on 06/22/2026 23,749 shares sale by Neil G. Almstead on 06/22/2026

Sale on 06/24/2026 5,323 shares sale by Neil G. Almstead on 06/24/2026

Sale on 06/25/2026 20,960 shares sale by Neil G. Almstead on 06/25/2026

Sale on 06/26/2026 8,130 shares sale by Neil G. Almstead on 06/26/2026

Aggregate June proceeds listed (examples) $1,921,431.84; $452,591.41; $1,801,869.07; $693,145.82 aggregate proceeds for each June sale line as shown

Stock option exercise date 07/06/2026 Stock Option Exercise recorded with issuer on NASDAQ

Key Terms

Rule 144, Stock Option Exercise, Aggregate proceeds

3 terms

Rule 144 regulatory

"Securities To Be Sold / Securities Sold During The Past 3 Months"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Stock Option Exercise financial

"Common | 07/06/2026 | 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.

Aggregate proceeds financial

"06/22/2026 | 23749 | 1921431.84"

FAQ

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

What does PTCT's Form 144 disclose about share sales?

It discloses sales of common stock by an affiliate and option exercise on 07/06/2026. The filing lists individual sales by Neil G. Almstead on 06/22/2026, 06/24/2026, 06/25/2026, and 06/26/2026 with share counts and aggregate proceeds.

How many shares did Neil G. Almstead sell in the reported June 2026 transactions?

The filing lists four sales totaling 50,162 shares across the four dates in June 2026. Each line shows the date, number of shares sold, and the aggregate sale proceeds for that transaction.

Was there an option exercise reported for PTCT in this Form 144?

Yes. The filing shows a Stock Option Exercise recorded on 07/06/2026 converting option(s) into common stock with cash consideration. The entry associates the exercise with the issuer and NASDAQ trading.

Who is the broker or intermediary listed in the Form 144 for PTCT?

The broker listed is Fidelity Brokerage Services LLC at 900 Salem Street, Smithfield, RI. The filing ties the securities and transaction entries to that brokerage and indicates NASDAQ as the market.

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

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Accepted by SEC EDGAR 07/06/2026 - 04:10 PM 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	0001578850
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	Almstead Neil Gregory
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	22161	1905797.43	82949338	07/06/2026	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	07/06/2026	Stock Option Exercise	Issuer			22161	07/06/2026	Cash

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Neil G. Almstead 500 Warren Corporate Center Drive Warren NJ 07059	Common	06/22/2026	23749	1921431.84
Neil G. Almstead 500 Warren Corporate Center Drive Warren NJ 07059	Common	06/24/2026	5323	452591.41
Neil G. Almstead 500 Warren Corporate Center Drive Warren NJ 07059	Common	06/25/2026	20960	1801869.07
Neil G. Almstead 500 Warren Corporate Center Drive Warren NJ 07059	Common	06/26/2026	8130	693145.82

144: Remarks and Signature

Remarks
Date of Notice	07/06/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/11/2025
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/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Neil G. Almstead
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)