XOMA Royalty director exercises 3,026 stock options

XOMA Royalty Corp director Jack L. Wyszomierski exercised stock options and increased his direct common share holdings.

Accepted by SEC EDGAR 03/26/2026 - 04:30 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

XOMA Royalty Corp director Jack L. Wyszomierski exercised stock options and increased his direct common share holdings. On March 24, 2026, he exercised a Stock Option for 3,026 shares at $11.20 per share, receiving the same number of Common Stock shares. Following the transaction, he directly owns 21,530 shares of XOMA Royalty Corp common stock. The option had been fully vested and exercisable since July 21, 2017, indicating a routine derivative exercise rather than an open-market purchase or sale.

Insider Trade Summary

3,026 shares exercised/converted

Exercise 2 txns

Insider WYSZOMIERSKI JACK L

Role Director

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to Buy)	3,026	$0.00	$0.00
Exercise	Common Stock	3,026	$11.20	$34K

Holdings After Transaction: Stock Option (Right to Buy) — 0 contracts (Direct); Common Stock — 21,530 shares (Direct)

Holdings Before and After: Stock Option (Right to Buy), 3,026 to 0 contracts (Direct); Common Stock, 18,504 to 21,530 shares (Direct)

Footnotes (1)

1. F1. This option became fully vested and exercisable as of July 21, 2017.

FAQ

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What insider transaction did XOMA (XOMA) director Jack L. Wyszomierski report?

Director Jack L. Wyszomierski reported exercising stock options for 3,026 XOMA Royalty Corp shares. The options converted into common stock at an exercise price of $11.20 per share, increasing his direct equity stake without any open-market buying or selling.

How many XOMA Royalty Corp (XOMA) shares did the director acquire in this Form 4?

He acquired 3,026 shares of XOMA Royalty Corp common stock through an option exercise. The derivative converted into the same number of common shares, reflecting a routine compensation-related transaction instead of a market purchase. No separate sale transaction was reported in this filing.

What is Jack L. Wyszomierski’s XOMA (XOMA) shareholding after the reported transaction?

After the transaction, Jack L. Wyszomierski directly owns 21,530 XOMA Royalty Corp common shares. This figure reflects his position following the exercise of 3,026 stock options, as disclosed in the Form 4, and represents his direct ownership only.

At what price were the XOMA Royalty Corp stock options exercised in this filing?

The stock options were exercised at an exercise price of $11.20 per share. This conversion price applied to 3,026 underlying common shares, turning the derivative position into direct common stock ownership without recording any open-market purchase or sale activity.

Were the exercised XOMA (XOMA) stock options already vested before this transaction?

Yes. The option was fully vested and exercisable as of July 21, 2017. The Form 4 footnote specifies this vesting status, indicating the March 24, 2026 transaction was a timing choice to exercise an existing, long-vested compensation grant.

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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^*

WYSZOMIERSKI JACK L

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/24/2026

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	03/24/2026		M		3,026	A	$11.2	21,530	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
Stock Option (Right to Buy)	$11.2	03/24/2026		M			3,026	(1)	07/21/2026	Common Stock	3,026	$0	0	D

Explanation of Responses:

1. This option became fully vested and exercisable as of July 21, 2017.

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Maricel Montano, Attorney-in-Fact for Jack L Wyszomierski	03/26/2026
	** 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)