Rapport Therapeutics officer plans $330K share sale

Morgan Stanley Smith Barney LLC is named as broker, and the common stock is listed on NASDAQ.

Rhea-AI Filing Summary

Rapport Therapeutics, Inc. officer Cheryl Gault reported 10,000 common shares for sale, with an aggregate market value of $330,200. The approximate sale date is September 30, 2026. The shares are identified as Founders Shares acquired from the issuer on September 5, 2024, and Morgan Stanley Smith Barney LLC is named as broker.

Key Figures

Common shares to be sold: 10,000 shares Aggregate market value: $330,200 Common shares outstanding: 47,978,286 shares +2 more

5 metrics

Common shares to be sold 10,000 shares Listed for sale for Cheryl Gault's account

Aggregate market value $330,200 Common shares listed for sale

Common shares outstanding 47,978,286 shares Issuer share count shown in the securities information

Approximate sale date September 30, 2026 Common shares listed for sale

Acquisition date September 5, 2024 Founders Shares acquired from the issuer

Key Terms

Rule 144, Founders Shares

2 terms

Rule 144 regulatory

"paragraph (a) of Rule 144"

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.

Founders Shares financial

"Founders Shares"

Founders shares are a special block of a company’s stock originally given to the people who started the business; they often carry extra voting power or favorable terms compared with regular shares. For investors, these shares matter because they concentrate control and influence how future funding, ownership dilution, and decision-making will play out—think of founders shares as the steering wheel that can steer a company’s direction even as more passengers (investors) climb aboard.

FAQ

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

How many RAPP shares is Cheryl Gault offering for sale?

Cheryl Gault is named as the person for whose account 10,000 common shares are to be sold, with an aggregate market value of $330,200.

When is Cheryl Gault's RAPP share sale expected?

The approximate sale date is September 30, 2026. The shares are identified as Founders Shares acquired from the issuer on September 5, 2024.

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

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Available on EDGAR 09/30/2026 - 04:20 PM Accepted by SEC EDGAR 09/30/2026 - 04:20 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	0001839046
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	Rapport Therapeutics, Inc.
SEC File Number	001-42121
Address of Issuer	99 High Street, Suite 2100 Boston MASSACHUSETTS 02110
Phone	8573218020
Name of Person for Whose Account the Securities are To Be Sold	CHERYL GAULT
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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	10000	330200.00	47978286	09/30/2026	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	09/05/2024	Founders Shares	Issuer			10000	09/05/2024	N/A

* 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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	09/30/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/10/2025
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/ Cheryl Gault
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)