MarketPeel
Insider Trading Intelligence
OH

Owen Hughes

XOMA
CHIEF EXECUTIVE OFFICER · XOMA ROYALTY CORP · CIK 0001575933
FILING MIX · LIFETIME79%/21%
BUYS
23
SELLS
6
TOTAL VALUE
$3.96M
COMPANIES
4
ACTIVE SINCE
Jan 2021
HOLDINGS NOW
695,721
AVG SELL PX
$27.48
TRADE KIND
SHOWING 29 / 29
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
10 backtested trades · 8 horizons · 4 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Owen Hughes, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d10+30.00%-2.25%+0.29%-2.54%-4.69%
14d10+50.00%+4.40%+1.56%+2.84%-0.69%
30d10+90.00%+9.77%+1.47%+8.30%-1.55%
60d10+60.00%+1.83%+5.90%-4.07%-10.77%
90d10+50.00%+4.30%+7.32%-3.02%-9.29%
180d10+50.00%+19.61%+14.07%+3.94%-14.80%
1y10(1 pending)+66.67%+42.73%+28.71%+14.02%+11.10%
2y10(3 pending)+85.71%+75.43%+45.02%+30.41%-5.12%
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
XOMA · 116,245 shares · as of Apr 20, 2026
068,750137,500206,250275,000202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 23 buys / 6 sellsCOVERAGE · 22 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
CCCC
C4 THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
62,00062,000Jun 24, 2026Jun 26, 2026View →
ANAB
ANAPTYSBIO, INC
PURCHASEGRANT
Stock grant
11,25011,250May 11, 2026May 13, 2026View →
XOMA
XOMA ROYALTY CORP
PURCHASE
Chief Executive Officer
10,568191,264Apr 20, 2026Apr 22, 2026View →
XOMA
XOMA ROYALTY CORP
SALE
Chief Executive Officer
10,568116,245Apr 20, 2026Apr 22, 2026View →
XOMA
XOMA ROYALTY CORP
PURCHASEGRANT
Stock grant
82,428180,696Mar 16, 2026Mar 17, 2026View →
XOMA
XOMA ROYALTY CORP
PURCHASEGRANT
Stock grant
126,813126,813Mar 16, 2026Mar 17, 2026View →
XOMA
XOMA ROYALTY CORP
PURCHASE
Chief Executive Officer
100,000$25.05$2.50M102,000Dec 4, 2025Dec 8, 2025View →
XOMA
XOMA ROYALTY CORP
PURCHASE
Chief Executive Officer
35,56798,268Sep 19, 2025Sep 23, 2025View →
XOMA
XOMA ROYALTY CORP
SALE
Chief Executive Officer
35,567132,714Sep 19, 2025Sep 23, 2025View →
CCCC
C4 THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
35,50035,500Jun 18, 2025Jun 20, 2025View →
XOMA
XOMA ROYALTY CORP
SALE
Chief Executive Officer
25,637$25.38$650.7K62,701May 20, 2025May 21, 2025View →
XOMA
XOMA ROYALTY CORP
SALE
Chief Executive Officer
53,359168,281May 19, 2025May 21, 2025View →
XOMA
XOMA ROYALTY CORP
PURCHASE
Chief Executive Officer
53,35988,338May 19, 2025May 21, 2025View →
XOMA
XOMA ROYALTY CORP
SALE
Chief Executive Officer
21,881$29.95$655.3K34,979Nov 13, 2024Nov 13, 2024View →
XOMA
XOMA ROYALTY CORP
PURCHASE
Chief Executive Officer
53,36056,860Nov 11, 2024Nov 13, 2024View →
XOMA
XOMA ROYALTY CORP
SALE
Chief Executive Officer
53,360221,640Nov 11, 2024Nov 13, 2024View →
CCCC
C4 THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
32,50032,500Jun 20, 2024Jun 21, 2024View →
XOMA
XOMA ROYALTY CORP
PURCHASEGRANT
Stock grant
275,000275,000Jan 8, 2024Jan 10, 2024View →
CCCC
C4 THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
52,00052,000Nov 16, 2023Nov 20, 2023View →
XOMA
XOMA ROYALTY CORP
PURCHASE
Exec Chairman and Interim CEO
1,000$13.83$13.8K3,500Oct 2, 2023Oct 4, 2023View →
XOMA
XOMA ROYALTY CORP
PURCHASE
Exec Chairman and Interim CEO
2,499$14.43$36.1K2,500Sep 26, 2023Sep 27, 2023View →
XOMA
XOMA ROYALTY CORP
PURCHASE
Exec Chairman and Interim CEO
1$14.65$151Sep 25, 2023Sep 27, 2023View →
XOMA
XOMA ROYALTY CORP
PURCHASE
Interim CEO
1,032$23.79$24.6K2,000May 24, 2023May 25, 2023View →
XOMA
XOMA ROYALTY CORP
PURCHASE
Interim CEO
768$23.49$18.0K968May 23, 2023May 25, 2023View →
XOMA
XOMA ROYALTY CORP
PURCHASE
Interim CEO
200$23.33$4.7K200May 23, 2023May 25, 2023View →
XOMA
XOMA ROYALTY CORP
PURCHASEGRANT
Stock grant
75,00075,000Jan 3, 2023Jan 5, 2023View →
XOMA
XOMA ROYALTY CORP
PURCHASEGRANT
Stock grant
100,000100,000Jan 3, 2023Jan 5, 2023View →
CGEM
CULLINAN THERAPEUTICS, INC.
PURCHASE
President and CEO
2,500$21.00$52.5K506,226Jan 12, 2021Jan 14, 2021View →
CGEM
CULLINAN THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
433,332433,332Jan 7, 2021Jan 7, 2020View →
Other insiders · XOMA
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About this filer
CIK 0001575933
ROLE
Chief Executive Officer
PRIMARY
XOMA
COMPANIES
4
ACTIVE SINCE
Jan 2021
MARKETPEEL · /INSIDER/0001575933DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

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