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John S. III Stafford

XNCR
10% OWNER · XENCOR INC · CIK 0001218981
FILING MIX · LIFETIME77%/23%
BUYS
36
SELLS
11
TOTAL VALUE
$25.52M
COMPANIES
2
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
5,847,518
AVG SELL PX
$28.91
TRADE KIND
SHOWING 47 / 47
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
21 backtested trades · 8 horizons · 12 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by John S. III Stafford, 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
7d21+52.38%+1.27%+1.27%+0.01%-0.83%
14d21+57.14%+2.18%+3.38%-1.17%-2.09%
30d21+57.14%+2.70%+5.41%-3.90%-1.88%
60d21+61.90%+2.67%+6.24%-3.57%-3.19%
90d21(2 pending)+63.16%+4.48%+8.72%-4.24%-4.99%
180d21(3 pending)+61.11%+22.97%+16.87%+6.11%-5.39%
1y21(3 pending)+33.33%+27.26%+33.65%-6.39%-5.76%
2y21(4 pending)+29.41%-6.50%+54.05%-60.55%-50.58%
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 · 606,005 shares · as of Apr 6, 2020
01,265,8002,531,6003,797,4005,063,200SHARES 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
2025
2026
2026
2026
FLOW · 36 buys / 11 sellsCOVERAGE · 27 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
AWRE
AWARE INC /MA/
PURCHASE
19,5595,241,513Jul 1, 2026Jul 2, 2026View →
AWRE
AWARE INC /MA/
PURCHASE
57,937$1.25$72.4K5,221,954May 14, 2026May 14, 2026View →
AWRE
AWARE INC /MA/
PURCHASE
22,475$1.25$28.1K5,164,017May 13, 2026May 14, 2026View →
AWRE
AWARE INC /MA/
PURCHASE
3,868$1.25$4.8K5,141,542May 5, 2026May 7, 2026View →
AWRE
AWARE INC /MA/
PURCHASE
15,720$1.25$19.6K5,137,674May 4, 2026May 7, 2026View →
AWRE
AWARE INC /MA/
PURCHASE
16,754$1.28$21.4K5,121,954Mar 13, 2026Mar 17, 2026View →
AWRE
AWARE INC /MA/
PURCHASEGRANT
Stock grant
39,11839,118Feb 23, 2026Feb 25, 2026View →
AWRE
AWARE INC /MA/
PURCHASE
22,3165,105,200Jan 2, 2026Jan 5, 2026View →
AWRE
AWARE INC /MA/
PURCHASE
22,3155,082,884Jul 1, 2025Jul 2, 2025View →
AWRE
AWARE INC /MA/
PURCHASE
8,758$1.65$14.5K5,060,569Mar 12, 2025Mar 14, 2025View →
AWRE
AWARE INC /MA/
PURCHASEGRANT
Stock grant
44,63144,631Mar 4, 2025Mar 6, 2025View →
AWRE
AWARE INC /MA/
PURCHASE
11,8625,051,801Jan 2, 2025Jan 3, 2025View →
AWRE
AWARE INC /MA/
PURCHASE
11,8625,039,939Jul 1, 2024Jul 3, 2024View →
AWRE
AWARE INC /MA/
PURCHASEGRANT
Stock grant
23,72423,724Mar 7, 2024Mar 11, 2024View →
AWRE
AWARE INC /MA/
PURCHASE
6,2335,028,077Jan 3, 2023Jan 5, 2023View →
AWRE
AWARE INC /MA/
PURCHASE
71,308$1.70$121.2K5,021,844Nov 10, 2022Nov 10, 2022View →
AWRE
AWARE INC /MA/
PURCHASE
223,877$1.63$364.9K4,950,536Nov 9, 2022Nov 10, 2022View →
AWRE
AWARE INC /MA/
SALE
4,621,3680Sep 16, 2022Sep 20, 2022View →
AWRE
AWARE INC /MA/
PURCHASE
4,621,3684,726,659Sep 16, 2022Sep 20, 2022View →
AWRE
AWARE INC /MA/
PURCHASE
6,23396,291Jul 1, 2022Jul 6, 2022View →
AWRE
AWARE INC /MA/
PURCHASEGRANT
Stock grant
12,46612,466Mar 1, 2022Mar 3, 2022View →
AWRE
AWARE INC /MA/
PURCHASEGRANT
Stock grant
5,02190,058Dec 31, 2021Jan 5, 2022View →
AWRE
AWARE INC /MA/
PURCHASE
20,016$2.89$57.8K85,037Dec 6, 2021Dec 8, 2021View →
AWRE
AWARE INC /MA/
PURCHASE
50,000$3.09$154.5K65,021Nov 22, 2021Dec 8, 2021View →
AWRE
AWARE INC /MA/
PURCHASEGRANT
Stock grant
5,02115,021Jun 30, 2021Jul 2, 2021View →
AWRE
AWARE INC /MA/
PURCHASEGRANT
Stock grant
10,04210,042Feb 24, 2021Feb 26, 2026View →
AWRE
AWARE INC /MA/
PURCHASEGRANT
Stock grant
5,00010,000Dec 31, 2020Jan 4, 2021View →
AWRE
AWARE INC /MA/
PURCHASE
1,100$2.77$3.0K11,100Aug 19, 2020Aug 19, 2020View →
AWRE
AWARE INC /MA/
PURCHASE
3,900$2.82$11.0K15,000Aug 19, 2020Aug 19, 2020View →
AWRE
AWARE INC /MA/
PURCHASE
5,000$2.72$13.6K10,000Aug 17, 2020Aug 19, 2020View →
AWRE
AWARE INC /MA/
SALE
5,0005,000Jul 1, 2020Jul 6, 2020View →
AWRE
AWARE INC /MA/
PURCHASE
5,0005,000Jul 1, 2020Jul 6, 2020View →
AWRE
AWARE INC /MA/
PURCHASE
4,621,3684,621,368Jun 4, 2020Jun 8, 2020View →
AWRE
AWARE INC /MA/
SALE
4,621,3680Jun 4, 2020Jun 8, 2020View →
XNCR
XENCOR INC
SALE
44,771$31.84$1.43M1,206,005Apr 6, 2020Apr 8, 2020View →
XNCR
XENCOR INC
SALE
600,000$27.10$16.26M606,005Apr 6, 2020Apr 8, 2020View →
AWRE
AWARE INC /MA/
PURCHASEGRANT
Stock grant
10,00010,000Mar 27, 2020Mar 31, 2020View →
XNCR
XENCOR INC
SALE
50,770$29.89$1.52M5,012,430Mar 20, 2020Mar 23, 2020View →
XNCR
XENCOR INC
SALE
26,800$28.23$756.6K5,063,200Mar 19, 2020Mar 23, 2020View →
AWRE
AWARE INC /MA/
PURCHASE
20,621$2.55$52.5K4,621,368Mar 16, 2020Mar 16, 2020View →
AWRE
AWARE INC /MA/
PURCHASE
9,565$2.69$25.7K4,600,747Mar 13, 2020Mar 16, 2020View →
AWRE
AWARE INC /MA/
PURCHASE
14,000$2.65$37.1K4,591,182Mar 12, 2020Mar 16, 2020View →
XNCR
XENCOR INC
SALE
60,876$36.68$2.23M1,250,776Jan 8, 2020Jan 8, 2020View →
XNCR
XENCOR INC
SALE
6,047$35.95$217.4K1,311,652Jan 7, 2020Jan 8, 2020View →
XNCR
XENCOR INC
SALE
58,862$35.81$2.11M1,317,699Jan 6, 2020Jan 8, 2020View →
AWRE
AWARE INC /MA/
SALE
5,0000Jan 2, 2020Jan 3, 2020View →
AWRE
AWARE INC /MA/
PURCHASE
5,0004,577,182Jan 2, 2020Jan 3, 2020View →
Other insiders · XNCR
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About this filer
CIK 0001218981
ROLE
10% Owner
PRIMARY
XNCR
COMPANIES
2
ACTIVE SINCE
Jan 2020
MARKETPEEL · /INSIDER/0001218981DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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