XOMA legal chief exercises 3,370 stock units

XOMA Royalty Corp’s Chief Legal Officer, Maricel Perea Montano, exercised performance-based equity awards into common stock.

Rhea-AI Filing Summary

XOMA Royalty Corp’s Chief Legal Officer, Maricel Perea Montano, exercised performance-based equity awards into common stock. On April 20, 2026, she converted 3,370 Performance Stock Units (PSUs) into 3,370 shares of common stock at a stated price of $0.00 per share.

Following the transaction, she directly holds 41,793 common shares. The PSU award was tied to XOMA’s share price, with each PSU representing a contingent right to one share that vests only if the stock reaches specified price levels and she continues in service. After this exercise, 37,074 PSUs remain outstanding for her, scheduled to expire on March 11, 2029.

Insider Trade Summary

3,370 shares exercised/converted

Exercise 2 txns

Insider Montano Maricel Perea

Role Chief Legal Officer

Type	Security	Shares	Price	Value
Exercise	Performance Stock Units	3,370	$0.00	$0.00
Exercise	Common Stock	3,370	$0.00	$0.00

Holdings After Transaction: Performance Stock Units — 37,074 contracts (Direct); Common Stock — 41,793 shares (Direct)

Footnotes (1)

1. F1. Each Performance Stock Unit ("PSU") represents a contingent right to receive one share of the Issuer's common stock (the "Common Stock"). The PSUs vest upon the Common Stock achieving a specified price per share, subject to the Reporting Person's continued service to the Issuer through each vesting date.

Key Figures

Common shares acquired: 3,370 shares Post-transaction common shares: 41,793 shares Performance Stock Units exercised: 3,370 units +2 more

5 metrics

Common shares acquired 3,370 shares Shares of common stock received from PSU exercise on April 20, 2026

Post-transaction common shares 41,793 shares Direct common stock holdings after the PSU exercise

Performance Stock Units exercised 3,370 units PSUs converted into common stock on April 20, 2026

Remaining Performance Stock Units 37,074 units Outstanding PSUs held after the reported transaction

PSU expiration date March 11, 2029 Expiration date for the remaining PSU award

Key Terms

Performance Stock Units, contingent right, vesting date

3 terms

Performance Stock Units financial

"Each Performance Stock Unit ("PSU") represents a contingent right to receive one share..."

Performance stock units are a type of company award that grants employees shares of stock only if certain performance goals are met. They motivate employees to work toward specific company achievements, aligning their interests with those of shareholders. For investors, they can influence a company's future stock supply and reflect management’s confidence in reaching key targets.

contingent right financial

"represents a contingent right to receive one share of the Issuer's common stock"

vesting date financial

"subject to the Reporting Person's continued service to the Issuer through each vesting date"

FAQ

What insider transaction did XOMA (XOMA) disclose in this Form 4?

XOMA reported its Chief Legal Officer, Maricel Perea Montano, exercised 3,370 Performance Stock Units into 3,370 common shares. This is a compensation-related derivative exercise, not an open-market purchase or sale of stock.

How many XOMA (XOMA) shares does the insider hold after this transaction?

After exercising Performance Stock Units, Maricel Perea Montano directly holds 41,793 shares of XOMA common stock. This reflects her updated ownership position following the non-cash conversion of equity awards into common shares.

What are Performance Stock Units (PSUs) in the XOMA (XOMA) filing?

In this filing, each Performance Stock Unit represents a contingent right to receive one XOMA common share. The PSUs vest only if the stock reaches specified price targets and the insider continues serving the company through the relevant vesting dates.

How many Performance Stock Units remain for the XOMA (XOMA) insider?

Following the exercise of 3,370 units, Maricel Perea Montano has 37,074 Performance Stock Units remaining. These PSUs continue to represent potential future shares, subject to performance conditions and scheduled expiration on March 11, 2029.

Was this XOMA (XOMA) insider transaction a market buy or sell?

No, this Form 4 shows a derivative exercise, not a market trade. The insider converted 3,370 Performance Stock Units into common shares at a stated price of $0.00, with no open-market buying or selling reported in this filing.

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Accepted by SEC EDGAR 04/22/2026 - 04:30 PM Learn about SEC filing dates

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^*

Montano Maricel Perea

(Last) (First) (Middle)

C/O XOMA ROYALTY CORPORATION

2200 POWELL STREET, SUITE 310

(Street)

EMERYVILLE CALIFORNIA 94608

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
XOMA Royalty Corp [ XOMA ]

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/20/2026

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

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

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

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	04/20/2026		M		3,370	A	$0	41,793	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
Performance Stock Units	(1)	04/20/2026		M			3,370	(1)	03/11/2029	Common Stock	3,370	$0	37,074	D

Explanation of Responses:

1. Each Performance Stock Unit ("PSU") represents a contingent right to receive one share of the Issuer's common stock (the "Common Stock"). The PSUs vest upon the Common Stock achieving a specified price per share, subject to the Reporting Person's continued service to the Issuer through each vesting date.

Remarks:

	/s/ Maricel Montano	04/22/2026
	** 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.
* Form 4: SEC 1474 (03-26)