InsiderSource
XOMA

XOMA Royalty Corp

SEC CIK 791908
$41.84 +55.5% · 90 days
90-day buys
$0
0 open-market
90-day sells
$0
0 open-market
Net insider flow
+$0
Net buying
Filings shown
31
Most recent
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At a glance

Insiders at XOMA have made no open-market trades in the last 90 days — the activity below is grants, option exercises, and other routine filings.

Largest recent trade: Hughes Owen, XOMA's CEO, spent $2.51M of their own money on 100,000 shares at $25, growing their stake 5000%.

Most active filer: Bvf Partners L P/il, with 4 transactions among the recent filings shown.

Insider transaction history

Form 4 filings for XOMA, newest first
View on SEC EDGAR ↗
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XOMA
XOMA Royalty Corp
Option exercise Hughes Owen · Director, Chief Executive Officer · Option exercise · filed Apr 22, 2026 ΔOwn +5.8%
+$0
10,568 sh
XOMA
XOMA Royalty Corp
Grant/award Hughes Owen · Director, Chief Executive Officer · Grant/award · filed Mar 17, 2026 ΔOwn +84%
+$0
82,428 sh
XOMA
XOMA Royalty Corp
Buy Hughes Owen · Director, Chief Executive Officer · Open-market purchase · filed Dec 8, 2025 ΔOwn +999%

Hughes Owen, XOMA's CEO, spent $2.51M of their own money on 100,000 shares at $25, growing their stake 5000%.

+$2.51M
100,000 sh @ $25
XOMA
XOMA Royalty Corp
Sell BURNS THOMAS M. · SVP, Finance & CFO · Open-market sale · filed Sep 23, 2025 ΔOwn −12%

Burns Thomas M. sold $154.7K of XOMA, trimming their stake 12%.

−$154.7K
4,300 sh @ $36
XOMA
XOMA Royalty Corp
Sell BURNS THOMAS M. · SVP, Finance & CFO · Open-market sale · filed Sep 23, 2025

Burns Thomas M. sold $554 of XOMA.

−$554
15 sh @ $37
XOMA
XOMA Royalty Corp
Sell BURNS THOMAS M. · SVP, Finance & CFO · Open-market sale · filed Sep 23, 2025

Burns Thomas M. sold $552 of XOMA.

−$552
15 sh @ $37
XOMA
XOMA Royalty Corp
Option exercise Hughes Owen · Director, Chief Executive Officer · Option exercise · filed Sep 23, 2025 ΔOwn +57%
+$0
35,567 sh
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About XOMA insider activity

This page tracks every recent Form 4 filed for XOMA Royalty Corp with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is XOMA insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for XOMA Royalty Corp usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.