Rapport Therapeutics (RAPP) CSO trades options and sells 8,500 shares

Rhea-AI Filing Summary

Rapport Therapeutics Chief Scientific Officer David Bredt reported a mix of option exercises and share sales in company stock. On February 19, 2026, he exercised stock options for 6,000 shares at $1.80 per share, acquiring an equal number of common shares through a cash exercise.

Earlier, on February 17, 2026, he sold a total of 8,500 shares of common stock in open-market transactions at weighted average prices of $28.0211, $28.9497, and $29.5944, under a pre-arranged Rule 10b5-1 trading plan adopted on December 12, 2024. Following these transactions, he directly holds 387,075 shares of common stock and 88,080 stock options.

SEC Form 4

FORM 4

UNITED 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

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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^*

Bredt David

(Last) (First) (Middle)

RAPPORT THERAPEUTICS, INC.

99 HIGH STREET, SUITE 2100

(Street)

BOSTON MA 02110

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Rapport Therapeutics, Inc. [ RAPP ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Scientific Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/17/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/17/2026		S(1)		900	D	$28.0211(2)	394,675	D
Common Stock	02/17/2026		S(1)		5,400	D	$28.9497(3)	389,275	D
Common Stock	02/17/2026		S(1)		2,200	D	$29.5944(4)	387,075	D
Common Stock	02/19/2026		M(5)		6,000	A	$1.8	393,075	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Options (Right to Buy)	$1.8	02/19/2026		M			6,000	(6)	12/05/2033	Common Stock	6,000	$0	88,080	D

Explanation of Responses:

1. These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on December 12, 2024.

2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.39 to $28.30, 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $28.40 to $29.36, 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.

4. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $29.45 to $29.81, 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.

5. Transaction involved a cash exercise of options to purchase shares of the Issuer's common stock. No shares of the Issuer's common stock were sold as part of this transaction.

6. 25% of the shares underlying this option vested and became exercisable on August 7, 2024, with the remaining shares vesting in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

	/s/ Troy Ignelzi, Attorney-in-Fact	02/19/2026
	** Signature of Reporting Person	Date
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.
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FAQ

What insider transactions did RAPP’s David Bredt report on this Form 4?

David Bredt reported both option exercises and share sales. He exercised options for 6,000 shares at $1.80 and sold 8,500 common shares in open-market trades at weighted average prices between about $28 and $30 per share.

How many Rapport Therapeutics (RAPP) shares did David Bredt sell and at what prices?

He sold a total of 8,500 common shares. The reported weighted average sale prices were $28.0211, $28.9497, and $29.5944, with underlying trades executed in price ranges around those averages according to the transaction footnotes.

What stock options did David Bredt exercise in this RAPP Form 4 filing?

He exercised stock options covering 6,000 shares of Rapport Therapeutics common stock at an exercise price of $1.80 per share. The footnotes state this was a cash exercise and no shares were sold as part of the option exercise transaction.

Were David Bredt’s RAPP share sales made under a Rule 10b5-1 plan?

Yes. The filing states the reported sales were effected under a Rule 10b5-1 trading plan adopted on December 12, 2024. Such plans allow pre-scheduled trades, helping insiders diversify while following securities law requirements and internal trading policies.

How many Rapport Therapeutics shares does David Bredt own after these transactions?

After the reported trades, he directly owns 387,075 shares of Rapport Therapeutics common stock. He also holds stock options representing 88,080 shares, reflecting his remaining derivative equity position following the 6,000-share option exercise.

What is the vesting schedule for the RAPP stock options mentioned in the Form 4?

The filing notes that 25% of the shares underlying this option vested on August 7, 2024. The remaining shares vest in 36 equal monthly installments thereafter, contingent on David Bredt’s continued service on each monthly vesting date.