Duncan McKechnie proposes sale of VRTX shares (VRTX) in Form 144

Rhea-AI Filing Summary

Issuer reported proposed sales of Common Stock via Form 144 by Duncan J. McKechnie. The filing lists two proposed dispositions: $2,394,365.00 for 4,910 shares on 02/25/2026 and $1,158,306.10 for 2,437 shares on 03/04/2026.

The filing also records restricted stock vesting events dated 02/10/2026 and 02/17/2026, including a vesting of 612 compensation shares on 02/17/2026. The entries identify Fidelity Brokerage Services LLC and NASDAQ as custodial/market references.

Insights

Insider Transactions Analyst

Two small, disclosed dispositions by Duncan J. McKechnie are reported on Form 144.

The filing documents proposed sales of 4,910 shares ($2,394,365.00) on 02/25/2026 and 2,437 shares ($1,158,306.10) on 03/04/2026. These are specified as transactional entries under Form 144 and reflect individual dispositions rather than company actions.

Timing and routing details are limited to the dates shown; cash‑flow recipients and whether sales were completed are not specified in the excerpt. Subsequent filings would confirm execution and post‑transaction holdings.

Securities Compliance Counsel

Form 144 disclosure aligns with required notice for proposed brokered sales by an affiliate.

The record lists restricted stock vesting on 02/10/2026 and 02/17/2026, with 612 shares shown for 02/17/2026, indicating acquired compensation shares subject to potential sale reporting. The presence of Fidelity Brokerage Services LLC is noted for routing.

Regulatory status and any limitations (e.g., sale timing or volume caps) are not included in the excerpt; follow‑up filings may provide completion or Rule 144 compliance detail.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	2633	1312339.86	254034190	03/11/2026	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	02/10/2026	Restricted Stock Vesting	Issuer			2021	02/10/2026	Compensation
Common	02/17/2026	Restricted Stock Vesting	Issuer			612	02/17/2026	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Duncan J. McKechnie 50 Northern Avenue Boston MA 02210	Common	02/25/2026	4910	2394365.00
Duncan J. McKechnie 50 Northern Avenue Boston MA 02210	Common	03/04/2026	2437	1158306.10

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What sales does the VRTX Form 144 disclose?

The Form 144 discloses proposed sales of 4,910 shares ($2,394,365.00) and 2,437 shares ($1,158,306.10). The transactions are dated 02/25/2026 and 03/04/2026.

Who is the reporting person on the VRTX Form 144?

The filing shows Duncan J. McKechnie as the reporting person. The entries list his address and the proposed sale dates of 02/25/2026 and 03/04/2026.

Does the filing show any restricted stock vesting for VRTX?

Yes, the excerpt records restricted stock vesting events on 02/10/2026 and 02/17/2026, including 612 compensation shares vesting on 02/17/2026.

Does the Form 144 confirm the sales were completed?

No; the Form 144 lists proposed dispositions with dates and amounts but does not confirm execution or settlement. Completion status is not specified in the provided excerpt.

Which broker or market is referenced in the VRTX filing?

The excerpt references Fidelity Brokerage Services LLC at 900 Salem Street, Smithfield, RI, and identifies NASDAQ as the market routing reference in the securities section.