PTCT Form 144: 23,749 Shares From Option Exercise

Filer submitted a Form 144 notice to sell common stock of PTCT.

Rhea-AI Filing Summary

Filer submitted a Form 144 notice to sell common stock of PTCT. The filing lists 23,749 shares to be sold in a stock option exercise transaction on 06/22/2026. The excerpt also shows a prior sale of 52,003 shares on 04/01/2026 and a reported figure of 82,949,338 shares shown with the date 06/22/2026.

Insights

Securities Counsel

Routine Form 144 notice of proposed resale tied to an option exercise.

The filing lists a stock option exercise resulting in 23,749 shares proposed for sale on 06/22/2026. The document appears to be a notice required for affiliate sales under resale rules.

Cash‑flow treatment is stated as Cash for the exercise; subsequent trading mechanics and timing depend on market execution and any contractual limits. Related prior activity shows 52,003 shares sold on 04/01/2026, which provides recent transaction context.

Key Figures

Shares listed for resale: 23,749 shares Prior shares sold (past 3 months): 52,003 shares Shares figure shown: 82,949,338 shares +1 more

4 metrics

Shares listed for resale 23,749 shares stock option exercise on <date>06/22/2026</date>

Prior shares sold (past 3 months) 52,003 shares sale dated <date>04/01/2026</date>

Shares figure shown 82,949,338 shares listed with date <date>06/22/2026</date>

Reported proceeds/amount $1,921,432.59 numeric figure adjacent to securities metadata

Key Terms

Form 144, Stock Option Exercise, Issuer

3 terms

Form 144 regulatory

"Filer submitted a Form 144 notice to sell common stock"

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

"06/22/2026 | Stock Option Exercise | Issuer"

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.

Issuer regulatory

"Stock Option Exercise | Issuer | | | 23749"

FAQ

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

What does PTCT's Form 144 disclose about the sale?

The Form 144 discloses a proposed resale of 23,749 shares of PTCT via a stock option exercise scheduled on 06/22/2026. The filing is a notice of intent to sell under applicable resale rules and lists cash as the consideration method.

Who appears as the seller or filer in the PTCT excerpt?

The excerpt identifies Fidelity Brokerage Services LLC in connection with the securities information and shows an address for Neil G. Almstead tied to prior sales. The filing text lists the seller/filer details in the provided lines.

Does the filing show recent prior sales of PTCT shares?

Yes, the excerpt records a prior sale of 52,003 shares on 04/01/2026. That prior transaction appears in the section summarizing securities sold during the past three months.

How many PTCT shares are shown as outstanding in the excerpt?

The excerpt includes the figure 82,949,338 shares associated with the date 06/22/2026. This number is presented alongside other securities metadata in the provided lines.

What consideration method is listed for the option exercise sale?

The filing entry for the stock option exercise on 06/22/2026 specifies the consideration method as Cash, indicating a cash exercise was used for the securities listed.

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

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Accepted by SEC EDGAR 06/22/2026 - 04:25 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	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	23749	1921432.59	82949338	06/22/2026	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	06/22/2026	Stock Option Exercise	Issuer			23749	06/22/2026	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	04/01/2026	52003	3590359.84

144: Remarks and Signature

Remarks
Date of Notice	06/22/2026
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/ Joshua Schmitt, 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)