Celia Eckert - Mar 5, 2024 Form 4 Insider Report for Xencor Inc (XNCR)

Role: SVP, GENERAL COUNSEL
Signature: /s/ Celia E. Eckert, Attorney-in-Fact
Stock symbol: XNCR
Transactions as of: Mar 5, 2024
Transactions value $: -$91,186
Form type: 4
Date filed: 3/7/2024, 04:03 PM
Previous filing: Mar 13, 2023
Next filing: Mar 12, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	XNCR	Common Stock	Sale	-$91.2K	-3.89K	-10.49%	$23.43	33.2K	Mar 5, 2024	Direct	F1, F2
transaction	XNCR	Common Stock	Award	$0	+13.1K	+39.39%	$0.00	46.3K	Mar 5, 2024	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 Options	Award	$0	+78.5K		$0.00	78.5K	Mar 5, 2024	Common Stock	78.5K	$22.85	Direct	F4

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

Explanation of Responses:

Id	Content
F1	Represents the disposition of shares that were sold to pay withholding taxes upon vesting of 10,136 restricted stock units.
F2	Includes the following shares acquired by the reporting person pursuant to the Issuer's Employee Stock Purchase Plan: 597 shares acquired in June 2023 and 142 shares acquired in December 2023.
F3	Represents restricted stock units that vest as follows: 1/3 of the shares vest on the first, second and third anniversaries of the date of grant.
F4	25% of the shares subject to the option shall vest on the one year anniversary of March 5, 2024 (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.