OmniAb, Inc. — Director's Dealing 2023

Dec 12, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OmniAb, Inc. (OABI)
CIK: 0001846253
Period of Report: 2023-12-07

Reporting Person: Berkman Charles S (Chief Legal Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-12-07	Common Stock	M	15622	—	Acquired	267359	Direct
2023-12-07	Common Stock	F	5403	$4.85	Disposed	261956	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-12-07	Restricted Stock Units	$0	M	15622	Acquired		Common Stock (15622)	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Restricted Stock Units	$0		Common Stock (5698)	5698	Direct
Restricted Stock Units	$0		Common Stock (17556)	23254	Direct
Restricted Stock Units	$0		Common Stock (31239)	54493	Direct
Restricted Stock Units	$0		Common Stock (46864)	101357	Direct
Restricted Stock Units	$0		Common Stock (40625)	141982	Direct

Footnotes

F1: Represents Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest in three substantially equal annual installments beginning on December 07, 2023, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

F2: The Total amount of beneficially held securities includes non-reportable transactions post the reporting person's last ownership report. The balance was increased by 16,695 shares acquired on May 31, 2023, and 4,051 shares acquired on November 30, 2023, from the Issuer's Employee Stock Purchase Plan (ESPP). It was concurrently reduced by the transfer of 41,591 OABI common stock shares to the reporting person's ex-spouse per a domestic relations order. Additionally, the reporting person transferred the option to purchase 50,004 OABI common stock shares, as previously reported in Table II, at varied exercise prices. The reporting person no longer reports as beneficially owned any securities owned by his ex-spouse.

F3: Represents shares withheld to satisfy tax withholding obligations upon the vesting of previously reported restricted stock units ("RSUs").

F4: Represents RSUs previously reported in Table I. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Vesting shall occur in full February 15th, 2024, subject to the Reporting Person's continued service.

F5: Represents RSUs previously reported in Table I. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Vests in full December 31st, 2023, subject to the Reporting Person's continued service.

F6: Represents RSUs previously reported in Table I. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Vesting occurs in two substantially equal installments in February 15th, 2024, and February 15th, 2025, subject to the Reporting Person's continued service.

F7: Represents RSUs previously reported in Table I. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Vesting occurs in three substantially equal annual installments, beginning December 7th, 2023, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

F8: Represents RSUs previously reported in Table I. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Vesting occurs in three substantially equal annual installments, beginning April 7th, 2024, subject to the Reporting Person's continued service to the Issuer through each such vesting date.