OmniAb (OABI) CLO awarded RSUs, options and executes tax sale

Rhea-AI Filing Summary

OmniAb, Inc. Chief Legal Officer Charles S. Berkman reported multiple equity compensation moves and a small mandated share sale. He acquired 18,750 shares of common stock through the vesting and conversion of Restricted Stock Units (RSUs), and was granted 60,000 new RSUs and 600,000 stock options, all held directly.

To cover tax withholding on the RSU vesting, 9,673 common shares were sold in a required "sell-to-cover" transaction at a weighted average price of $1.71, with individual trades between $1.68 and $1.73. After these transactions, he directly owned 392,700 shares of common stock, 124,584 RSUs and 600,000 stock options.

Insider Trade Summary

Net Seller: 9,673 shares ($16,541)

Net Sell 5 txns

Insider Berkman Charles S

Role Chief Legal Officer

Sold 9,673 shs ($17K)

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	18,750	$0.00	--
Grant/Award	Restricted Stock Units	60,000	$0.00	--
Grant/Award	Stock Option	600,000	$0.00	--
Exercise	Common Stock	18,750	$0.00	--
Sale	Common Stock	9,673	$1.71	$17K

Holdings After Transaction: Restricted Stock Units — 64,584 shares (Direct); Stock Option — 600,000 shares (Direct); Common Stock — 402,373 shares (Direct)

Footnotes (1)

1. Represents the vesting of an RSU grant which occurs in three substantially equal annual installments beginning on February 18, 2026. Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock Represents the number of shares required to be sold by the reporting person to cover tax withholding obligations in connection with the vesting of RSUs. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of a tax withholding obligation to be funded by a "sell-to-cover" transaction and do not represent discretionary trades by the reporting person. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.68 to $1.73. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The RSU grant vests in three substantially equal annual installments beginning on February 18, 2027. The Stock Option grant vests and is exercisable as to 12.5% of the underlying shares 6 months after the grant date, and in 42 substantially equal monthly installments thereafter.

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^*

Berkman Charles S

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
02/18/2026

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	02/18/2026		M		18,750(1)	A	$0(2)	402,373	D
Common Stock	02/18/2026		S		9,673(3)	D	$1.71(4)	392,700	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	$0(2)	02/18/2026		M			18,750	(1)	(1)	Common Stock	18,750	$0	64,584	D
Restricted Stock Units	$0(2)	02/18/2026		A		60,000		(5)	(5)	Common Stock	60,000	$0	124,584	D
Stock Option	$1.71	02/18/2026		A		600,000		(6)	02/18/2036	Common Stock	600,000	$0	600,000	D

Explanation of Responses:

1. Represents the vesting of an RSU grant which occurs in three substantially equal annual installments beginning on February 18, 2026.

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

3. Represents the number of shares required to be sold by the reporting person to cover tax withholding obligations in connection with the vesting of RSUs. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of a tax withholding obligation to be funded by a "sell-to-cover" transaction and do not represent discretionary trades by the reporting person.

4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.68 to $1.73. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

5. The RSU grant vests in three substantially equal annual installments beginning on February 18, 2027.

6. The Stock Option grant vests and is exercisable as to 12.5% of the underlying shares 6 months after the grant date, and in 42 substantially equal monthly installments thereafter.

Remarks:

	/s/ Charles S. Berkman	02/18/2026
	** 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 insider transactions did OmniAb (OABI) report for Charles S. Berkman?

OmniAb reported that Chief Legal Officer Charles S. Berkman received 60,000 Restricted Stock Units, 600,000 stock options, and saw 18,750 RSUs vest into common shares, while 9,673 shares were sold to cover tax withholding obligations tied to the RSU vesting.

How many OmniAb (OABI) shares did the CLO sell, and at what price?

Charles S. Berkman reported the sale of 9,673 OmniAb common shares at a weighted average price of $1.71, with individual trades executed between $1.68 and $1.73, specifically to satisfy tax withholding from an RSU vesting event.

Were the OmniAb (OABI) insider share sales discretionary trades?

The 9,673 OmniAb shares sold by Charles S. Berkman were not discretionary trades. They were mandated "sell-to-cover" transactions required under the company’s equity plans to fund tax withholding obligations associated with the vesting of Restricted Stock Units.

What new equity awards did OmniAb (OABI) grant to its Chief Legal Officer?

OmniAb granted Chief Legal Officer Charles S. Berkman 60,000 Restricted Stock Units and 600,000 stock options. The RSUs vest in three substantially equal annual installments starting February 18, 2027, while the options vest over a schedule beginning six months after the grant date.

How many OmniAb (OABI) shares and awards does the CLO hold after these transactions?

Following the reported transactions, Charles S. Berkman directly holds 392,700 shares of OmniAb common stock, 124,584 Restricted Stock Units, and 600,000 stock options, reflecting the combined effect of RSU vesting, new RSU and option grants, and the tax-related share sale.

How do the OmniAb (OABI) RSU and option vesting terms work for this grant?

The 60,000 OmniAb RSUs granted to Charles S. Berkman vest in three substantially equal annual installments beginning February 18, 2027. The 600,000 stock options vest 12.5% six months after grant, then in 42 substantially equal monthly installments thereafter.