Antony A. Riley - 01 Oct 2025 Form 4 Insider Report for Forte Biosciences, Inc. (FBRX)

Role: CHIEF FINANCIAL OFFICER
Signature: /s/ Paul A. Wagner, Ph.D., as Attorney-in-Fact
Issuer symbol: FBRX
Transactions as of: 01 Oct 2025
Net transactions value: -$1,946
Form type: 4
Filing time: 02 Oct 2025, 16:10:10 UTC
Previous filing: 03 Jul 2025
Next filing: 02 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Riley Antony A	CHIEF FINANCIAL OFFICER	C/O FORTE BIOSCIENCES, INC., 3060 PEGASUS PARK DR., BLDG 6, DALLAS	/s/ Paul A. Wagner, Ph.D., as Attorney-in-Fact	02 Oct 2025	0001339375

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	FBRX	Common Stock	Options Exercise	$0	+375	+1.2%	$0.000000	31,974	01 Oct 2025	Direct	F1
transaction	FBRX	Common Stock	Tax liability	$1,946	-134	-0.42%	$14.52	31,840	01 Oct 2025	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	FBRX	Restricted Stock Units	Options Exercise	$0	-375	-17%	$0.000000	1,875	01 Oct 2025	Common Stock	375		Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit ("RSU") represents a contingent right to receive one share of Forte Biosciences, Inc. (the "Issuer") Common Stock.
F2	Subject to the Reporting Person continuing to be a Service Provider (as defined in the 2021 Equity Incentive Plan) through each applicable vesting date, one-sixteenth (1/16th) of the RSUs subject to the award shall vest on each Quarterly Vesting Date (as defined below) on or immediately following February 1, 2023. For purposes of this RSU Award, "Quarterly Vesting Date" with respect to any calendar year means January 1, April 1, July 1, and October 1.

Content

Each restricted stock unit ("RSU") represents a contingent right to receive one share of Forte Biosciences, Inc. (the "Issuer") Common Stock.

Subject to the Reporting Person continuing to be a Service Provider (as defined in the 2021 Equity Incentive Plan) through each applicable vesting date, one-sixteenth (1/16th) of the RSUs subject to the award shall vest on each Quarterly Vesting Date (as defined below) on or immediately following February 1, 2023. For purposes of this RSU Award, "Quarterly Vesting Date" with respect to any calendar year means January 1, April 1, July 1, and October 1.