STOCK TITAN

Rapport Therapeutics (RAPP) CEO trades 2,210 shares under Rule 10b5-1 plan

(Neutral)
(Negative)
Form Type
4

Rhea-AI Filing Summary

Rapport Therapeutics, Inc. Chief Executive Officer Abraham Ceesay reported selling a total of 2,210 shares of common stock on July 27, 2026, in two transactions, including 2,203 shares at a weighted average price of $42.1070 (with individual trades between $41.66 and $42.50) and 7 shares at $42.7350 per share, pursuant to Rule 10b5-1 trading plans adopted on March 27, 2026.

Separate from these sales, 81,729 shares are held by The Ceesay Family Irrevocable Trust and 20,729 shares by The Dorothy Ceesay Irrevocable Trust; Ceesay disclaims beneficial ownership of these trust-held shares except to the extent of any pecuniary interest.

Positive

  • None.

Negative

  • None.
Insider Ceesay Abraham
Role Chief Executive Officer
Sold 2,210 shs ($93K)
Type Security Shares Price Value
Sale Common Stock F1, F2 2,203 $42.107 $93K
Sale Common Stock F1 7 $42.735 $299.15
holding Common Stock F3 -- -- --
holding Common Stock F4 -- -- --
Holdings After Transaction: Common Stock — 537,607 shares (Direct); Common Stock — 81,729 shares (Indirect, By Ceesay Family Irrevocable Trust); Common Stock — 20,729 shares (Indirect, By Dorothy Ceesay Irrevocable Trust)
Footnotes (4)
  1. F1. These transactions were effected by the Reporting Person pursuant to Rule 10b5-1 trading plans adopted on March 27, 2026.
  2. F2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $41.66 to $42.50, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price at which the transactions were effected.
  3. F3. Shares held by The Ceesay Family Irrevocable Trust u/t/d March 27, 2024. The Reporting Person disclaims beneficial ownership of such shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that he is a beneficial owner of such shares for the purpose of Section 16 of the Exchange Act, or for any other purpose.
  4. F4. Shares held by The Dorothy Ceesay Irrevocable Trust u/d/t dated March 27, 2024. The Reporting Person disclaims beneficial ownership of such shares for purposes of Section 16 of the Exchange Act, except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that he is a beneficial owner of such shares for the purpose of Section 16 of the Exchange Act, or for any other purpose.
Shares sold 2,203 shares Common stock sold on July 27, 2026 at a weighted average price
Additional shares sold 7 shares Common stock sold on July 27, 2026 at $42.7350 per share
Weighted average sale price $42.1070 per share Average price for the 2,203-share common stock sale on July 27, 2026
Sale price range $41.66–$42.50 per share Range of individual trade prices within the 2,203-share transaction
Ceesay Family Trust holdings 81,729 shares Common stock held by The Ceesay Family Irrevocable Trust as of July 27, 2026
Dorothy Ceesay Trust holdings 20,729 shares Common stock held by The Dorothy Ceesay Irrevocable Trust as of July 27, 2026
Rule 10b5-1 plan adoption date March 27, 2026 Date the CEO’s trading plans governing these sales were adopted
Rule 10b5-1 trading plans regulatory
"These transactions were effected by the Reporting Person pursuant to Rule 10b5-1 trading plans."
Rule 10b5-1 trading plans are written, pre-arranged instructions that allow company insiders (such as executives or directors) to automatically buy or sell their company's stock at specified times or under set conditions, like a standing instruction or automated thermostat for trades. They matter to investors because these plans provide a legal defense against insider‑trading accusations and create predictable insider trading patterns that can help signal whether sales are routine portfolio management or potentially meaningful to the company’s outlook.
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
pecuniary interest financial
"except to the extent of his pecuniary interest therein, if any."
beneficial ownership regulatory
"The Reporting Person disclaims beneficial ownership of such shares for purposes of Section 16."
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
Section 16 of the Securities Exchange Act of 1934 regulatory
"for purposes of Section 16 of the Securities Exchange Act of 1934, as amended."
A provision of federal securities law that requires company insiders—directors, officers and large shareholders—to publicly report their stock holdings and trades and to surrender any “short-swing” profits from purchases and sales within a six-month window. It acts like a rule that forces leaders to announce their trades and prevents quick buy-sell windfalls, giving investors transparency into insider activity and reducing opportunities for unfair gain.

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

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FAQ

How many Rapport Therapeutics (RAPP) shares did CEO Abraham Ceesay sell?

Abraham Ceesay reported selling a total of 2,210 shares of Rapport Therapeutics common stock on July 27, 2026, across two transactions. These were open-market sales reported on a Form 4 insider trading report.

At what prices did the Rapport Therapeutics (RAPP) CEO sell shares?

Ceesay sold 2,203 shares at a weighted average of $42.1070 per share, with individual trades between $41.66 and $42.50, and an additional 7 shares at $42.7350 per share on July 27, 2026.

Were Abraham Ceesay’s RAPP stock sales made under a Rule 10b5-1 plan?

Yes. The filing states the transactions were effected pursuant to Rule 10b5-1 trading plans adopted on March 27, 2026. Such pre-arranged plans allow trades to occur under preset instructions.

Does Abraham Ceesay claim beneficial ownership of shares held in the Ceesay family trusts?

No, Ceesay disclaims beneficial ownership of the shares held by both irrevocable trusts for Section 16 purposes, except to the extent of his pecuniary interest, if any, as stated in the footnotes.

What role does Abraham Ceesay hold at Rapport Therapeutics (RAPP)?

Abraham Ceesay is reported as the Chief Executive Officer and an officer and director of Rapport Therapeutics, Inc. His Form 4 filing covers personal and related trust holdings in the company’s common stock.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Ceesay Abraham

(Last)(First)(Middle)
RAPPORT THERAPEUTICS, INC.
99 HIGH STREET, SUITE 2100

(Street)
BOSTON MASSACHUSETTS 02110

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Rapport Therapeutics, Inc. [ RAPP ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/27/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock07/27/2026S(1)2,203D$42.107(2)537,614D
Common Stock07/27/2026S(1)7D$42.735537,607D
Common Stock81,729IBy Ceesay Family Irrevocable Trust(3)
Common Stock20,729IBy Dorothy Ceesay Irrevocable Trust(4)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. These transactions were effected by the Reporting Person pursuant to Rule 10b5-1 trading plans adopted on March 27, 2026.
2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $41.66 to $42.50, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price at which the transactions were effected.
3. Shares held by The Ceesay Family Irrevocable Trust u/t/d March 27, 2024. The Reporting Person disclaims beneficial ownership of such shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that he is a beneficial owner of such shares for the purpose of Section 16 of the Exchange Act, or for any other purpose.
4. Shares held by The Dorothy Ceesay Irrevocable Trust u/d/t dated March 27, 2024. The Reporting Person disclaims beneficial ownership of such shares for purposes of Section 16 of the Exchange Act, except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that he is a beneficial owner of such shares for the purpose of Section 16 of the Exchange Act, or for any other purpose.
/s/ Troy Ignelzi, Attorney-in-Fact07/29/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)