Form 144: affiliate sale notice

Reporting person submitted a Form 144 notice to sell Common stock under Rule 144.

Rhea-AI Filing Summary

Reporting person submitted a Form 144 notice to sell Common stock under Rule 144. The filing lists a planned sale of 2,464 shares on 07/09/2026 in connection with a Stock Option Exercise and multiple reported dispositions by Neil G. Almstead on 06/22/2026 through 07/07/2026 with individual sale amounts shown.

Insights

Securities Counsel

Form 144 notice records planned affiliate sale via option exercise and recent dispositions.

The filing lists a Stock Option Exercise for 07/09/2026

The excerpt shows several open-market or reported dispositions by Neil G. Almstead between 06/22/2026 and 07/07/2026. These entries are routine compliance notices; cash‑flow treatment and final settlement details are not provided in the excerpt.

Key Figures

Planned sale: 2,464 shares Sale example: 23,749 shares Sale example: 20,960 shares +1 more

4 metrics

Planned sale 2,464 shares Stock Option Exercise on <date>07/09/2026</date>

Sale example 23,749 shares <date>06/22/2026</date> for $1,921,431.84

Sale example 20,960 shares <date>06/25/2026</date> for $1,801,869.07

Sale example 24,613 shares <date>07/07/2026</date> for $2,187,694.51

Key Terms

Stock Option Exercise, Securities To Be Sold, Cash

3 terms

Stock Option Exercise financial

"Common | 07/09/2026 | 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.

Securities To Be Sold regulatory

"144: Securities To Be Sold"

Cash financial

"2464 | 07/09/2026 | Cash"

FAQ

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

What does PTCT's Form 144 filing report?

The filing reports a planned sale of 2,464 shares on 07/09/2026 tied to a Stock Option Exercise. It also lists multiple prior dispositions by Neil G. Almstead between 06/22/2026 and 07/07/2026 with amounts shown.

Who is the selling party named in the PTCT Form 144?

The filing identifies Neil G. Almstead as a reporting party for several dispositions dated 06/22/2026 through 07/07/2026. The notice also references a brokerage account at Fidelity Brokerage Services LLC for the planned sale.

How many shares and proceeds are listed for recent sales by Neil G. Almstead?

Examples include 23,749 shares for $1,921,431.84 on 06/22/2026, 20,960 shares for $1,801,869.07 on 06/25/2026, and 24,613 shares for $2,187,694.51 on 07/07/2026 as shown in the excerpt.

Does the Form 144 specify how proceeds will be used?

The excerpt does not state a use of proceeds. It shows the transaction type as a Stock Option Exercise with cash indicated, but no application of proceeds or recipient use is disclosed in the provided content.

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

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Accepted by SEC EDGAR 07/09/2026 - 04:11 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	2464	222368.23	82949338	07/09/2026	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	07/09/2026	Stock Option Exercise	Issuer			2464	07/09/2026	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
Neil G. Almstead 500 Warren Corporate Center Drive Warren NJ 07059	Common	07/06/2026	22161	1905798.18
Neil G. Almstead 500 Warren Corporate Center Drive Warren NJ 07059	Common	07/07/2026	24613	2187694.51

144: Remarks and Signature

Remarks
Date of Notice	07/09/2026
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/ Gerardo Ibarra-Munoz, 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)