MarketPeel
Insider Trading Intelligence
BC

Bart Jan Cornelissen

XNCR
SR. VICE PRESIDENT & CFO · XENCOR INC · CIK 0002018934
FILING MIX · LIFETIME67%/33%
BUYS
6
SELLS
3
TOTAL VALUE
$101.5K
COMPANIES
1
ACTIVE SINCE
Apr 2024
HOLDINGS NOW
75,898
AVG SELL PX
$10.40
TRADE KIND
SHOWING 9 / 9
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
3 backtested trades · 8 horizons · 8 pending
Forward-return performance of every backtestable P/S trade by Bart Jan Cornelissen, 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
7d3+0.00%+10.55%+0.88%+9.68%+6.27%
14d3+0.00%+16.66%+2.04%+14.62%+11.76%
30d3+0.00%+7.65%+4.22%+3.43%-2.40%
60d3+0.00%+20.15%+9.50%+10.30%+10.30%
90d3(1 pending)+0.00%+9.66%+18.96%-1.16%-1.16%
180d3(2 pending)+0.00%+51.89%+27.55%+24.34%+24.34%
1y3(2 pending)+0.00%+56.82%+29.52%+27.29%+27.29%
2y3(3 pending)
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
XNCR · 75,898 shares · as of Apr 10, 2026
047,54995,097142,646190,19420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 6 buys / 3 sellsCOVERAGE · 9 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
XNCR
XENCOR INC
SALE
SR. VICE PRESIDENT & CFO
3,499$12.29$43.0K75,898Apr 10, 2026Apr 13, 2026View →
XNCR
XENCOR INC
SALE
SR. VICE PRESIDENT & CFO
2,517$11.25$28.3K79,397Mar 5, 2026Mar 9, 2026View →
XNCR
XENCOR INC
PURCHASEGRANT
Stock grant
19,45881,914Mar 2, 2026Mar 4, 2026View →
XNCR
XENCOR INC
PURCHASEGRANT
Stock grant
116,750116,750Mar 2, 2026Mar 4, 2026View →
XNCR
XENCOR INC
SALE
SR. VICE PRESIDENT & CFO
3,750$8.06$30.2K61,348Apr 10, 2025Apr 14, 2025View →
XNCR
XENCOR INC
PURCHASEGRANT
Stock grant
21,94965,098Mar 4, 2025Mar 5, 2025View →
XNCR
XENCOR INC
PURCHASEGRANT
Stock grant
65,84765,847Mar 4, 2025Mar 5, 2025View →
XNCR
XENCOR INC
PURCHASEGRANT
Stock grant
190,194190,194Apr 9, 2024Apr 11, 2024View →
XNCR
XENCOR INC
PURCHASEGRANT
Stock grant
42,26542,265Apr 9, 2024Apr 11, 2024View →
Other insiders · XNCR
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About this filer
CIK 0002018934
ROLE
SR. VICE PRESIDENT & CFO
PRIMARY
XNCR
COMPANIES
1
ACTIVE SINCE
Apr 2024
MARKETPEEL · /INSIDER/0002018934DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

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