[Form 4] OmniAb, Inc. Insider Trading Activity

Rhea-AI Filing Summary

OmniAb (OABI): Form 4 insider transaction

Director Steven Love reported the vesting and settlement of 13,333 Restricted Stock Units into common stock on 11/01/2025 (Code M). Following the transaction, he beneficially owns 71,666 shares directly. Remaining RSUs beneficially owned total 33,334.

Per the footnote, these RSUs vest in three substantially equal annual installments beginning November 1, 2024, subject to continued service. Each RSU represents the right to receive one share of common stock.

Insider Trade Summary

13,333 shares exercised/converted

Mixed 2 txns

Insider Love Steven

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	13,333	$0.00	--
Exercise	Common Stock	13,333	$0.00	--

Holdings After Transaction: Restricted Stock Units — 33,334 shares (Direct); Common Stock — 71,666 shares (Direct)

Footnotes (1)

1. Represents the vesting of an RSU which occurs in three substantially equal annual installments, beginning November 1st, 2024, subject to the Reporting Person's continued service to the Issuer through each such vesting date. Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Love Steven

(Last) (First) (Middle)

5980 HORTON STREET, STE 600

(Street)

EMERYVILLE CA 94608

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
OmniAb, Inc. [ OABI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/01/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/01/2025		M		13,333(1)	A	(2)	71,666	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(2)	11/01/2025		M			13,333	(1)	(1)	Common Stock	13,333	$0	33,334	D

Explanation of Responses:

1. Represents the vesting of an RSU which occurs in three substantially equal annual installments, beginning November 1st, 2024, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

2. Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

Remarks:

	By: /s/ Charles S. Berkman, Attorney-in-Fact For: Steven Love	11/03/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did OmniAb (OABI) disclose in this Form 4?

A director reported the vesting and settlement of 13,333 RSUs into common stock on 11/01/2025 (Code M).

Who is the reporting person in the OmniAb (OABI) filing?

The reporting person is Steven Love, listed as a Director.

How many OmniAb shares does the insider own after the transaction?

He beneficially owns 71,666 shares directly following the reported transaction.

How many RSUs remain after this vesting event?

Remaining RSUs beneficially owned are 33,334.

What does transaction code M mean in this context?

Code M indicates an exercise or conversion of a derivative security, here the settlement of RSUs into common stock.

What is the RSU vesting schedule noted in the filing?

The RSUs vest in three substantially equal annual installments beginning November 1, 2024, subject to continued service.