Kurt A. Gustafson - Nov 1, 2022 Form 4 Insider Report for OmniAb, Inc. (OABI)

Role: EVP, Finance and CFO
Signature: /s/ Charles S. Berkman, Attorney-in-Fact
Stock symbol: OABI
Transactions as of: Nov 1, 2022
Transactions value $: $0
Form type: 4
Date filed: 11/3/2022, 09:12 PM
Previous filing: Sep 30, 2022
Next filing: Nov 29, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OABI	Common Stock	Award		+160K			160K	Nov 1, 2022	Direct	F1, F2, 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	OABI	Stock Option	Award		+349K			349K	Nov 1, 2022	Common Stock	349K	$12.39	Direct	F1, F4

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

Explanation of Responses:

Id	Content
F1	Pursuant to the business combination of Avista Public Acquisition Corp. II and OmniAb, Inc. ("Legacy OmniAb"), as contemplated by an agreement and plan of merger, dated March 23, 2022 (the "Merger Agreement"), each share of common stock, option and award of restricted stock unit of Legacy OmniAb automatically converted into the right to receive securities of the Issuer with the same terms and conditions in accordance with an exchange ratio described in the Merger Agreement.
F2	Includes 69,752 restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock and does not expire.
F3	Includes 72,872 earn-out shares subject to forfeiture provisions described in the Merger Agreement.
F4	The stock option vests and is exercisable as to 12.5% of the underlying shares on October 8, 2022, and in 42 substantially equal monthly installments thereafter.