Bassil I. Dahiyat - 29 Dec 2023 Form 4 Insider Report for Xencor Inc (XNCR)

Role: PRESIDENT & CEO, Director
Signature: /s/ Celia E. Eckert, Attorney-in-Fact
Issuer symbol: XNCR
Transactions as of: 29 Dec 2023
Net transactions value: -$223,409
Form type: 4
Filing time: 29 Dec 2023, 16:24:19 UTC
Previous filing: 03 Jul 2023
Next filing: 07 Mar 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	XNCR	Common Stock	Options Exercise	$718,261	+65,001	+22%	$11.05	357,929	29 Dec 2023	Direct	F1, F2
transaction	XNCR	Common Stock	Sale	$941,670	-45,000	-13%	$20.93	312,929	29 Dec 2023	Direct	F3

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	XNCR	Stock Option (Right to Buy)	Options Exercise	$0	-65,001	-100%	$0.000000^*	0	29 Dec 2023	Common Stock	65,001	$11.05	Direct	F4

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

Explanation of Responses:

Id	Content
F1	Underlying option due to expire in February 2024.
F2	Includes the following shares acquired by the reporting person pursuant to the Issuer's Employee Stock Purchase Plan: 304 shares acquired in June 2023 and 408 shares acquired in December 2023.
F3	Represents the disposition of shares sold to pay option cost and estimated tax liability due upon option exercise.
F4	25% of the shares subject to the option shall vest on the one year anniversary of February 21, 2014 (the "Vesting Commencement Date"), and 1/48th of the shares shall vest monthly thereafter, such that the option shall be fully vested on the four year anniversary of the Vesting Commencement Date.