Insider plans sale of 2,813 PTCT shares

An affiliate of PTCT filed a notice of proposed sale under Rule 144 for 2,813 common shares, to be sold through Fidelity Brokerage Services on NASDAQ at an aggregate market value of 194,490.82.

Rhea-AI Filing Summary

An affiliate of PTCT filed a notice of proposed sale under Rule 144 for 2,813 common shares, to be sold through Fidelity Brokerage Services on NASDAQ at an aggregate market value of 194,490.82. Shares outstanding were 80,288,305 as of the filing. The seller acquired these shares on 02/17/2026 via an option granted on 02/15/2024, paid in cash. Over the prior three months, the same holder reported several additional common share sales, including 4,879 shares on 01/07/2026 for gross proceeds of 377,839.55 and 4,033 shares on 01/08/2026 for 308,761.28.

FAQ

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

What does the latest Form 144 filing indicate for PTCT?

The filing shows an affiliate of PTCT intends to sell 2,813 common shares under Rule 144. The shares will be sold through Fidelity Brokerage Services on NASDAQ, reflecting a routine planned disposition by a shareholder.

How many PTCT shares are proposed to be sold in this Form 144?

The notice covers a proposed sale of 2,813 PTCT common shares. These shares have an indicated aggregate market value of 194,490.82 and are to be sold on NASDAQ through Fidelity Brokerage Services on or about 02/17/2026.

What is the aggregate market value of the PTCT shares to be sold?

The 2,813 common shares covered by the Form 144 have an aggregate market value of 194,490.82. This value is based on prevailing market pricing for PTCT common stock at the time the notice of proposed sale was prepared.

How and when were the PTCT shares in the Form 144 acquired?

The 2,813 PTCT common shares were acquired on 02/17/2026 through an option granted on 02/15/2024. The filing states the acquisition was paid in cash, indicating a standard option exercise followed by planned resale.

What prior PTCT share sales by this holder are disclosed?

The notice lists several PTCT common stock sales in the past three months. Examples include 4,879 shares sold on 01/07/2026 for 377,839.55 and 4,033 shares on 01/08/2026 for 308,761.28 in gross proceeds.

How many PTCT shares are outstanding according to the Form 144?

The filing reports 80,288,305 PTCT common shares outstanding. This figure provides context for the planned sale of 2,813 shares, showing that the proposed transaction represents a very small fraction of the total shares.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 02/17/2026 - 12:51 PM EST 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	0001578852
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	Boulding Mark Elliott
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	2813	194490.82	80288305	02/17/2026	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	02/17/2026	Option Granted 02/15/2024	Issuer			2813	02/17/2026	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
Mark Boulding 500 Warren Corporate Center Drive Warren NJ 07059	Common	11/17/2025	2812	213690.35
Mark Boulding 500 Warren Corporate Center Drive Warren NJ 07059	Common	01/05/2026	2266	171190.18
Mark Boulding 500 Warren Corporate Center Drive Warren NJ 07059	Common	01/06/2026	1739	133811.88
Mark Boulding 500 Warren Corporate Center Drive Warren NJ 07059	Common	01/07/2026	4879	377839.55
Mark Boulding 500 Warren Corporate Center Drive Warren NJ 07059	Common	01/08/2026	4033	308761.28
Mark Boulding 500 Warren Corporate Center Drive Warren NJ 07059	Common	01/09/2026	2314	180314.42

144: Remarks and Signature

Remarks
Date of Notice	02/17/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/04/2024
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/ Eric Janiak, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Mark Boulding
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)