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Insider Trading Intelligence
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Thomas M. Burns

XOMA
SVP, FINANCE & CFO · XOMA ROYALTY CORP · CIK 0001638479
FILING MIX · LIFETIME41%/59%
BUYS
19
SELLS
27
TOTAL VALUE
$2.73M
COMPANIES
1
ACTIVE SINCE
Mar 2020
HOLDINGS NOW
30,109
AVG SELL PX
$31.85
TRADE KIND
SHOWING 46 / 46
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
17 backtested trades · 8 horizons · 9 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Thomas M. Burns, 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
7d17+41.18%-1.59%+0.24%-1.83%+0.58%—
14d17+52.94%+2.17%+1.59%+0.58%-2.19%—
30d17+70.59%+2.57%+2.05%+0.52%-8.22%—
60d17+70.59%-1.97%+1.02%-2.99%-13.26%—
90d17+64.71%-4.80%+2.31%-7.11%-11.81%—
180d17+82.35%-6.58%+6.36%-12.94%-21.52%—
1y17(3 pending)+85.71%-14.17%+19.57%-33.74%-35.85%—
2y17(6 pending)+100.00%-30.98%+17.72%-48.71%-45.85%—
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 · 30,109 shares · as of Sep 22, 2025
022,90045,80068,70091,60020212022202320242025SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
FLOW · 19 buys / 27 sellsCOVERAGE · 23 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
15$36.93$55430,094Sep 22, 2025Sep 23, 2025 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
15$36.81$55230,079Sep 22, 2025Sep 23, 2025 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
4,300$35.98$154.7K30,109Sep 22, 2025Sep 23, 2025 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASE
SVP, Finance & CFO
11,846——34,409Sep 19, 2025Sep 23, 2025 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
11,846——44,208Sep 19, 2025Sep 23, 2025 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
10,482$25.38$266.0K22,563May 20, 2025May 21, 2025 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASE
SVP, Finance & CFO
17,773——33,045May 19, 2025May 21, 2025 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
17,773——56,054May 19, 2025May 21, 2025 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASE
SVP, Finance & CFO
1,000$25.46$25.5K2,000Apr 1, 2025Apr 2, 2025 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
9,775$29.94$292.7K14,553Nov 13, 2024Nov 13, 2024 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
17,773——73,827Nov 11, 2024Nov 13, 2024 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASE
SVP, Finance & CFO
17,773——24,328Nov 11, 2024Nov 13, 2024 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASEGRANT
Stock grant
91,600——91,600May 18, 2023May 22, 2023 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASEGRANT
Stock grant
11,000——11,000Nov 8, 2022Nov 9, 2022 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
2,000——75,778Jul 15, 2022Jul 18, 2022 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASE
SVP, Finance & CFO
2,000$4.03$8.1K8,555Jul 15, 2022Jul 18, 2022 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
2,000$31.66$63.3K6,555Jul 15, 2022Jul 18, 2022 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
161——15,500Mar 23, 2022Mar 23, 2022 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
161$30.00$4.8K6,555Mar 23, 2022Mar 23, 2022 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASE
SVP, Finance & CFO
161$4.03$6496,716Mar 23, 2022Mar 23, 2022 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
2,339——15,661Mar 22, 2022Mar 23, 2022 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
2,339$30.02$70.2K6,555Mar 22, 2022Mar 23, 2022 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASE
SVP, Finance & CFO
2,339$4.03$9.4K8,894Mar 22, 2022Mar 23, 2022 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
12,000$29.01$348.1K6,555Mar 21, 2022Mar 23, 2022 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
12,000——18,000Mar 21, 2022Mar 23, 2022 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASE
SVP, Finance & CFO
12,000$4.03$48.4K18,555Mar 21, 2022Mar 23, 2022 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASEGRANT
Stock grant
28,000——28,000Feb 22, 2022Feb 23, 2022 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASEGRANT
Stock grant
1,000$25.00$25.0K1,000Apr 9, 2021Apr 13, 2021 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASEGRANT
Stock grant
20,055——20,055Feb 17, 2021Feb 19, 2021 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASEGRANT
Stock grant
2,000$25.00$50.0K2,000Dec 15, 2020Dec 17, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
15,000——7,000Dec 15, 2020Dec 17, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASE
SVP, Finance & CFO
15,000$4.03$60.5K21,555Dec 15, 2020Dec 17, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
9,393$41.02$385.3K12,162Dec 15, 2020Dec 17, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
5,607$42.04$235.7K6,555Dec 15, 2020Dec 17, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
5,125$32.93$168.8K6,555Nov 23, 2020Nov 24, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASE
SVP, Finance & CFO
5,125$4.03$20.7K11,680Nov 23, 2020Nov 24, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
5,125——22,000Nov 23, 2020Nov 24, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
426$33.35$14.2K6,555Nov 20, 2020Nov 24, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
6,449$32.46$209.3K6,981Nov 20, 2020Nov 24, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASE
SVP, Finance & CFO
6,875$4.03$27.7K13,430Nov 20, 2020Nov 24, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
6,875——27,125Nov 20, 2020Nov 24, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
726$27.50$20.0K6,555Nov 5, 2020Nov 6, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
8,000——34,000Nov 5, 2020Nov 6, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
SALE
SVP, Finance & CFO
7,274$25.98$188.9K7,281Nov 5, 2020Nov 6, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASE
SVP, Finance & CFO
8,000$4.03$32.2K14,555Nov 5, 2020Nov 6, 2020 ↗View →
XOMA
XOMA ROYALTY CORP
PURCHASEGRANT
Stock grant
22,000——22,000Mar 13, 2020Mar 16, 2020 ↗View →
Other insiders · XOMA
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About this filer
CIK 0001638479
ROLE
SVP, Finance & CFO
PRIMARY
XOMA
COMPANIES
1
ACTIVE SINCE
Mar 2020
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