SEC FORM 4

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
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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^*

Berkman Charles S

(Last)

(First)

(Middle)

5980 HORTON STREET

STE 600

(Street)

EMERYVILLE

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)

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

3. Date of Earliest Transaction (Month/Day/Year)
12/07/2023

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	12/07/2023		M		15,622	A	⁽¹⁾	267,359⁽²⁾	D
Common Stock	12/07/2023		F		5,403⁽³⁾	D	$4.85	261,956	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	$0⁽⁴⁾							⁽⁴⁾	⁽⁴⁾	Common Stock	5,698		5,698	D
Restricted Stock Units	$0⁽⁵⁾							⁽⁵⁾	⁽⁵⁾	Common Stock	17,556		23,254	D
Restricted Stock Units	$0⁽⁶⁾							⁽⁶⁾	⁽⁶⁾	Common Stock	31,239		54,493	D
Restricted Stock Units	$0⁽⁷⁾							⁽⁷⁾	⁽⁷⁾	Common Stock	46,864		101,357	D
Restricted Stock Units	$0⁽⁸⁾							⁽⁸⁾	⁽⁸⁾	Common Stock	40,625		141,982	D
Restricted Stock Units	$0⁽¹⁾	12/07/2023		M		15,622		⁽¹⁾	⁽¹⁾	Common Stock	15,622	$0	126,360	D

Explanation of Responses:

1. 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.

2. 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.

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

4. 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.

5. 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.

6. 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.

7. 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.

8. 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.

	/s/ Charles S. Berkman	12/11/2023
	** 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.