XOMA CFO exercises 4,000 PSUs, retains 92,368 shares

XOMA Royalty Corp’s Chief Financial Officer Jeffrey Trigilio exercised 4,000 Performance Stock Units, converting them into 4,000 shares of common stock at an exercise price of $0.00 per share.

Rhea-AI Filing Summary

XOMA Royalty Corp’s Chief Financial Officer Jeffrey Trigilio exercised 4,000 Performance Stock Units, converting them into 4,000 shares of common stock at an exercise price of $0.00 per share. Each PSU represents a contingent right to receive one share of common stock upon meeting specified stock price and service conditions.

To cover tax obligations related to this vesting, 1,632 common shares were disposed of at $36.76 per share through a tax-withholding transaction, which is not an open-market sale. After these transactions, Trigilio directly holds 92,368 shares of XOMA common stock and 26,000 Performance Stock Units.

Insider Trade Summary

4,000 shares exercised/converted

Exercise 3 txns

Insider Trigilio Jeffrey

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Exercise	Performance Stock Units	4,000	$0.00	$0.00
Exercise	Common Stock	4,000	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	1,632	$36.76	$60K

Holdings After Transaction: Performance Stock Units — 26,000 contracts (Direct); Common Stock — 92,368 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

PSUs exercised: 4,000 units Common shares acquired: 4,000 shares Shares withheld for taxes: 1,632 shares +3 more

6 metrics

PSUs exercised 4,000 units Converted into common stock on 2026-04-13

Common shares acquired 4,000 shares From PSU exercise on 2026-04-13

Shares withheld for taxes 1,632 shares Tax-withholding disposition at $36.76 per share

Tax withholding price $36.76 per share Price used for 1,632-share F-code disposition

Post-transaction common shares 92,368 shares Common stock directly held after transactions

Post-transaction PSUs 26,000 units Performance Stock Units held after 4,000-unit exercise

Key Terms

Performance Stock Units, contingent right, tax-withholding disposition, vesting date

4 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"

tax-withholding disposition financial

"Payment of exercise price or tax liability by delivering securities"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

vesting date financial

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

FAQ

What insider transactions did XOMA (XOMA) report for CFO Jeffrey Trigilio?

XOMA reported that CFO Jeffrey Trigilio exercised 4,000 Performance Stock Units into 4,000 shares of common stock. In connection with this vesting, 1,632 common shares were withheld at $36.76 per share to cover tax obligations, leaving him with 92,368 common shares.

How many XOMA (XOMA) shares does the CFO hold after the latest Form 4?

Following the reported transactions, CFO Jeffrey Trigilio directly holds 92,368 shares of XOMA common stock. He also holds 26,000 Performance Stock Units, which each represent a contingent right to receive one share of common stock if specified conditions are met.

What are Performance Stock Units in the XOMA (XOMA) Form 4 filing?

Performance Stock Units are awards that represent a contingent right to receive one share of XOMA common stock. The PSUs vest only if the stock reaches a specified price per share and the executive remains in service through each applicable vesting date.

Was the XOMA (XOMA) CFO’s share disposition an open-market sale?

No. The Form 4 shows a disposition of 1,632 common shares coded as an F transaction at $36.76 per share. This represents shares withheld to pay tax liabilities tied to the PSU vesting, rather than an open-market sale decision by the CFO.

How many Performance Stock Units does the XOMA (XOMA) CFO retain after exercising some units?

After exercising 4,000 Performance Stock Units into common stock, CFO Jeffrey Trigilio is reported to hold 26,000 remaining PSUs. These units may convert into common shares only if the company’s stock price and continued-service performance conditions are satisfied.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/15/2026 - 06:13 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^*

Trigilio Jeffrey

(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 Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/13/2026

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	04/13/2026		M		4,000	A	$0	94,000	D
Common Stock	04/13/2026		F		1,632	D	$36.76	92,368	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)	04/13/2026		M			4,000	(1)	05/18/2026	Common Stock	4,000	$0	26,000	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, Attorney-in-Fact for Jeffrey Trigilio	04/15/2026
	** 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)