XOMA Royalty Corp Insider Trading Activity
Every SEC Form 4 insider transaction reported for XOMA Royalty Corp (XOMA), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are XOMA insiders buying or selling?
In the last 12 months, XOMA Royalty Corp insiders reported 1 open-market purchase ($2.5M) and 0 sales ($0) — net buying of $2.5M. Since April 2018, Trabud has recorded 70 Form 4 filings for XOMA: 44 buys ($33.4M) and 26 sells ($62.5M).
Source: SEC EDGAR Form 4
Key Statistics (April 2018 – Dec 8, 2025)
Total Form 4 filings
70
SEC EDGAR
Insider filers
8
Insider buys (44)
$33.4M
Insider sells (26)
$62.5M
Insider sentiment
Net sellingNet insider flow of $29.1M in net selling since April 2018, and $2.5M in net buying over the last 12 months.
Recent XOMA insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Dec 8, 2025 | Owen Hughes | Chief Executive Officer | Purchase | 100.0K | $25.05 | $2.5M | SEC ↗ |
| Sep 23, 2025 | Thomas M. Burns | SVP, Finance & CFO | Sale | 4.3K | $35.99 | $155.8K | SEC ↗ |
| Jul 2, 2025 | Bradley Sitko | Chief Investment Officer | Purchase | 2.0K | $25.39 | $50.8K | SEC ↗ |
| May 21, 2025 | Owen Hughes | Chief Executive Officer | Sale | 25.6K | $25.38 | $650.7K | SEC ↗ |
| May 21, 2025 | Thomas M. Burns | SVP, Finance & CFO | Sale | 10.5K | $25.38 | $266.0K | SEC ↗ |
| May 20, 2025 | Mark N Lampert | 10% Owner | Sale | 392.7K | $27.10 | $10.6M | SEC ↗ |
| Apr 9, 2025 | Bradley Sitko | Chief Investment Officer | Purchase | 2.0K | $24.70 | $49.4K | SEC ↗ |
| Apr 7, 2025 | Joseph M Limber | Director | Purchase | 30.0K | $25.34 | $760.1K | SEC ↗ |
| Apr 2, 2025 | Bradley Sitko | Chief Investment Officer | Purchase | 1.2K | $21.04 | $26.2K | SEC ↗ |
| Apr 2, 2025 | Thomas M. Burns | SVP, Finance & CFO | Purchase | 1.0K | $25.46 | $25.5K | SEC ↗ |
| Mar 25, 2025 | Bradley Sitko | Chief Investment Officer | Purchase | 4.1K | $23.89 | $98.8K | SEC ↗ |
| Jan 28, 2025 | Mark N Lampert | 10% Owner | Sale | 650.7K | $26.10 | $17.0M | SEC ↗ |
| Jan 10, 2025 | Bradley Sitko | Chief Investment Officer | Purchase | 545 | $25.64 | $14.0K | SEC ↗ |
| Jan 3, 2025 | Bradley Sitko | Chief Investment Officer | Purchase | 300 | $25.90 | $7.8K | SEC ↗ |
| Nov 13, 2024 | Thomas M. Burns | SVP, Finance & CFO | Sale | 9.8K | $29.94 | $292.7K | SEC ↗ |
| Nov 13, 2024 | Owen Hughes | Chief Executive Officer | Sale | 21.9K | $29.95 | $655.3K | SEC ↗ |
| Oct 4, 2023 | Bradley Sitko | Chief Investment Officer | Purchase | 1.8K | $14.20 | $24.8K | SEC ↗ |
| Oct 4, 2023 | Owen Hughes | Exec Chairman and Interim CEO | Purchase | 1.0K | $13.83 | $13.8K | SEC ↗ |
| Sep 27, 2023 | Owen Hughes | Exec Chairman and Interim CEO | Purchase | 2.5K | $14.43 | $36.1K | SEC ↗ |
| Jun 2, 2023 | Bradley Sitko | Chief Investment Officer | Purchase | 1.5K | $17.13 | $25.7K | SEC ↗ |
| May 25, 2023 | Bradley Sitko | Chief Investment Officer | Purchase | 850 | $19.00 | $16.1K | SEC ↗ |
| May 25, 2023 | Owen Hughes | Interim CEO | Purchase | 2.0K | $23.63 | $47.3K | SEC ↗ |
| May 22, 2023 | Bradley Sitko | Chief Investment Officer | Purchase | 1.0K | $19.50 | $19.5K | SEC ↗ |
| May 17, 2023 | Bradley Sitko | Chief Investment Officer | Purchase | 500 | $23.20 | $11.6K | SEC ↗ |
| May 16, 2023 | Bradley Sitko | Chief Investment Officer | Purchase | 3.5K | $20.88 | $73.1K | SEC ↗ |
Showing the 25 most recent of 70 Form 4 filings for XOMA Royalty Corp.
Most active XOMA insiders
- BVF PARTNERS L P/IL25 filings
- Bradley Sitko12 filings
- James R Neal12 filings
- Thomas M. Burns11 filings
- Owen Hughes6 filings
Ask anything about XOMA insider activity
Use Trabud's AI agent to query XOMA Royalty Corp's Form 4 history in plain English — "Show me XOMA CEO purchases this year" or compare it against any other ticker.
Open the AI agentXOMA insider trading FAQ
Are XOMA Royalty Corp insiders buying or selling?
In the last 12 months, XOMA Royalty Corp insiders reported 1 open-market purchase ($2.5M) and 0 sales ($0) — net buying of $2.5M. Since April 2018, Trabud has recorded 70 Form 4 filings for XOMA: 44 buys ($33.4M) and 26 sells ($62.5M). Over the full record that is net selling of $29.1M.
How many insiders trade XOMA stock?
8 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for XOMA Royalty Corp. The most recent filing was accepted on Dec 8, 2025.
Where does Trabud get XOMA insider trading data?
All XOMA insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.