Austin Charette - 08 Jan 2026 Form 3 Insider Report for AGENUS INC (AGEN)

Role: Principal Accounting Officer
Signature: By: /s/ Austin Charette
Issuer symbol: AGEN
Transactions as of: 08 Jan 2026
Net transactions value: $0
Form type: 3
Filing time: 16 Jan 2026, 16:05:11 UTC
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Charette Austin	Principal Accounting Officer	3 FORBES ROAD, LEXINGTON	By: /s/ Austin Charette	16 Jan 2026	0002105444

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	AGEN	Common Stock						9,115	08 Jan 2026	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
holding	AGEN	Stock Option (Right to Buy)							08 Jan 2026	Common Stock	337	$74.40	Direct
holding	AGEN	Stock Option (Right to Buy)							08 Jan 2026	Common Stock	101	$113.00	Direct
holding	AGEN	Stock Option (Right to Buy)							08 Jan 2026	Common Stock	237	$47.60	Direct
holding	AGEN	Stock Option (Right to Buy)							08 Jan 2026	Common Stock	325	$82.40	Direct
holding	AGEN	Stock Option (Right to Buy)							08 Jan 2026	Common Stock	375	$74.00	Direct
holding	AGEN	Stock Option (Right to Buy)							08 Jan 2026	Common Stock	375	$63.60	Direct
holding	AGEN	Stock Option (Right to Buy)							08 Jan 2026	Common Stock	375	$64.40	Direct
holding	AGEN	Stock Option (Right to Buy)							08 Jan 2026	Common Stock	375	$49.00	Direct
holding	AGEN	Stock Option (Right to Buy)							08 Jan 2026	Common Stock	4,843	$12.26	Direct
holding	AGEN	Stock Option (Right to Buy)							08 Jan 2026	Common Stock	625	$12.26	Direct	F1
holding	AGEN	Stock Option (Right to Buy)							08 Jan 2026	Common Stock	625	$3.02	Direct	F2

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

Explanation of Responses:

Id	Content
F1	Options awarded in accordance with the Agenus Inc. 2019 Equity Incentive Plan (as amended), which vested as to one third of the underlying shares on January 16, 2025, and the balance in equal quarterly installments thereafter, generally subject to continued employment.
F2	Options awarded in accordance with the Agenus Inc. 2019 Equity Incentive Plan (as amended) and vests over three years with one third vesting on the one-year anniversary of the grant date (May 28, 2025) and the balance in equal quarterly installments thereafter, generally subject to continued employment.