Hughes Owen purchased ~$2.5M in XOMA Royalty Corp. stock
XOMA Royalty Corp. (XOMA) · Chief Executive Officer · Data via SEC EDGAR Form 4
Price Performance · 10 days before → 90 days after trade
▲ = insider buy date
90-day return
-15.0%vs SPY +0.4%
Trade Details · Public SEC Filing
Insider
Hughes Owen
Role
Chief Executive Officer
Transaction
Open-Market Purchase
Approx. Value
~$2.5M
Trade Date
Dec 4, 2025
Company
XOMA Royalty Corp.
Ticker
XOMASource
SEC EDGAR Form 4
Why This Trade Stands Out
Very Strong conviction signal
Scored in the top tier across multiple factors. Fewer than 5% of insider trades receive this rating.
~$2.5M purchase
Trades over $1M are rare. When insiders put this much of their own money on the line, they tend to have high conviction in their company's direction.
Chief Executive Officer
CEOs have the deepest knowledge of company operations. Academic research shows CEO purchases outperform other insider trades by a wide margin.
-15.0% in 90 days (S&P 500: +0.4%)
This trade underperformed the S&P 500 by 15.4 percentage points. Not every insider trade wins. We track all of them so you can focus on the insiders with the best records.
How good is Hughes Owen at picking stocks?
Full track record: win rate, average return, and performance vs S&P 500
On December 4, 2025, Hughes Owen — Chief Executive Officer of XOMA Royalty Corp. — filed a Form 4 with the SEC disclosing an open-market purchase of approximately ~$2.5M in XOMA Royalty Corp. (XOMA) stock.
Under Section 16(a) of the Securities Exchange Act of 1934, corporate insiders must report all open-market stock transactions to the SEC within two business days. These filings — known as Form 4s — are publicly available on the SEC's EDGAR database. VeritySignals filters and scores the full Form 4 stream to surface high-conviction signals like this one.
In the 90 days following this trade, XOMA returned -15.0% versus +0.4% for the S&P 500 over the same period.
VeritySignals Conviction Analysis
Full Conviction Analysis
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All data sourced from publicly available SEC Form 4 filings via EDGAR · Not financial advice · Past performance does not guarantee future results.
At a Glance
More XOMA Insider Activity
BVF PARTNERS L P/IL
May 20, 2025
~$23M
STRONG
Hughes Owen
May 16, 2025
~$12M
VS
LIMBER JOSEPH M
Apr 7, 2025
~$3.5M
STRONG
BURNS THOMAS M.
Apr 1, 2025
~$835K
VS
How to Read Insider Trades
What is this?
When company executives buy or sell their own stock, they must report it to the SEC within 2 days. These public filings reveal what the people who know the company best are doing with their own money.
Why does it matter?
Insiders can sell for many reasons (taxes, diversification, expenses), but they generally only buy for one: they think the stock is going up. That's why insider purchases are more predictive than sales.
What makes a trade "strong"?
We score trades on 15+ factors: the insider's role (CEO > director), trade size relative to their salary, whether other insiders also bought (clusters), and historical accuracy of the insider.
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