Carolyn R. Bertozzi - 01 Nov 2025 Form 4 Insider Report for OmniAb, Inc. (OABI)

Role
Director
Signature
By: /s/ Charles S. Berkman, Attorney-in-Fact For: Carolyn R Bertozzi
Issuer symbol
OABI
Transactions as of
01 Nov 2025
Transactions value $
$0
Form type
4
Filing time
03 Nov 2025, 16:08:53 UTC
Previous filing
18 Jun 2025
Next filing
08 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Bertozzi Carolyn R Director 5980 HORTON STREET, STE 600, EMERYVILLE By: /s/ Charles S. Berkman, Attorney-in-Fact For: Carolyn R Bertozzi 03 Nov 2025 0001698766

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction OABI Common Stock Options Exercise +17.8K +23.52% 93.3K 01 Nov 2025 Direct F1, F2

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 Restricted Stock Units Options Exercise $0 -17.8K -47.05% $0.00 20K 01 Nov 2025 Common Stock 17.8K Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents the vesting of an RSU which occurs in three substantially equal annual installments, beginning November 1st, 2023, subject to the Reporting Person's continued service to the Issuer through each such vesting date.
F2 Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.