Lawrence Lamb - 04 Feb 2026 Form 4 Insider Report for IN8BIO, INC. (INAB)

Role: EVP and CSO
Signature: /s/ William Ho, Attoney-in-Fact
Issuer symbol: INAB
Transactions as of: 04 Feb 2026
Net transactions value: $0
Form type: 4
Filing time: 06 Feb 2026, 16:30:27 UTC
Previous filing: 07 May 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Lamb Lawrence	EVP and CSO	C/O IN8BIO, INC., 350 5TH AVE. SUITE 5330, NEW YORK	/s/ William Ho, Attoney-in-Fact	06 Feb 2026	0001830059

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	INAB	Employee Stock Option (right to buy)	Award	$0	+72,000		$0.000000	72,000	04 Feb 2026	Common Stock	72,000	$1.96	Direct	F1

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

Explanation of Responses:

Id	Content
F1	Twenty-five percent (25%) of the shares subject to the option shall vest on February 4, 2027 and the remaining shares subject to the option shall vest in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person continuing to provide service through each such date.