MarketPeel
Insider Trading Intelligence
WL

William Lis

JSPR
SEE REMARKS · JASPER THERAPEUTICS, INC. · CIK 0001574558
FILING MIX · LIFETIME52%/48%
BUYS
12
SELLS
11
TOTAL VALUE
$2.23M
COMPANIES
2
ACTIVE SINCE
Jan 2021
HOLDINGS NOW
103,958
AVG SELL PX
$14.44
TRADE KIND
SHOWING 23 / 23
Trades · vs SPY
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Performance · forward returns vs SPY
10 backtested trades · 8 horizons · 2 pending
Forward-return performance of every backtestable P/S trade by William Lis, 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+70.00%-7.65%-1.07%-6.58%-5.64%
14d10+40.00%-1.58%-0.39%-1.20%+0.63%
30d10+40.00%-1.80%+0.77%-2.57%+0.21%
60d10+50.00%-7.32%+3.23%-10.54%-3.37%
90d10+80.00%-10.16%+3.63%-13.79%-14.79%
180d10+70.00%+2.83%+6.78%-3.95%-30.27%
1y10+60.00%+13.12%+17.74%-4.63%-25.33%
2y10(2 pending)+62.50%-25.18%+38.91%-64.09%-56.87%
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
JSPR · 53,521 shares · as of Oct 13, 2023
025,00050,00075,000100,0002023SHARES 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 · 12 buys / 11 sellsCOVERAGE · 22 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ZLAB
ZAI LAB LTD
SALE10b5-1
10b5-1 plan
7,040$18.09$127.4K50,437Jun 22, 2026Jun 24, 2026View →
ZLAB
ZAI LAB LTD
PURCHASEGRANT
Stock grant
22,37157,477Jun 17, 2026Jun 22, 2026View →
ZLAB
ZAI LAB LTD
SALE10b5-1
10b5-1 plan
13,814$35.67$492.7K35,106Jun 20, 2025Jun 23, 2025View →
ZLAB
ZAI LAB LTD
PURCHASEGRANT
Stock grant
10,83148,920Jun 18, 2025Jun 23, 2025View →
ZLAB
ZAI LAB LTD
SALE10b5-1
10b5-1 plan
15,000$32.98$494.7K38,089Feb 28, 2025Mar 4, 2025View →
ZLAB
ZAI LAB LTD
SALE10b5-1
10b5-1 plan
100$18.04$1.8K53,089Jul 1, 2024Jul 3, 2024View →
ZLAB
ZAI LAB LTD
SALE10b5-1
10b5-1 plan
10,297$17.31$178.3K53,189Jul 1, 2024Jul 3, 2024View →
ZLAB
ZAI LAB LTD
PURCHASEGRANT
Stock grant
21,25363,486Jun 18, 2024Jun 20, 2024View →
JSPR
JASPER THERAPEUTICS, INC.
SALE10b5-1
10b5-1 plan
7,965$0.85$6.8K53,521Oct 13, 2023Oct 13, 2023View →
ZLAB
ZAI LAB LTD
PURCHASEGRANT
Stock grant
18,903$26.45$500.0K42,233Jun 29, 2023Jun 30, 2023View →
JSPR
JASPER THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
47,00047,000Jun 7, 2023Jun 8, 2023View →
JSPR
JASPER THERAPEUTICS, INC.
SALE
8,500$1.44$12.2K61,486Apr 13, 2023Apr 14, 2023View →
ZLAB
ZAI LAB LTD
SALE
5,434$38.31$208.2K23,330Mar 3, 2023Mar 7, 2023View →
JSPR
JASPER THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
29,50069,986Oct 12, 2022Oct 13, 2022View →
JSPR
JASPER THERAPEUTICS, INC.
SALE
24,743$2.08$51.4K40,486Jun 27, 2022Jun 28, 2022View →
JSPR
JASPER THERAPEUTICS, INC.
SALE
24,743$2.02$50.0K65,229Jun 24, 2022Jun 28, 2022View →
JSPR
JASPER THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
89,97289,972Mar 21, 2022Mar 23, 2022View →
JSPR
JASPER THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
7,5007,500Mar 21, 2022Mar 23, 2022View →
JSPR
JASPER THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
100,000100,000Mar 21, 2022Mar 23, 2022View →
JSPR
JASPER THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
89,97289,972Mar 21, 2022Mar 23, 2022View →
ZLAB
ZAI LAB LTD
SALE
1,926$53.40$102.8K34,114Jan 20, 2022Jan 21, 2022View →
ZLAB
ZAI LAB LTD
PURCHASEGRANT
Stock grant
7,76336,040Jan 3, 2022Jan 4, 2022View →
ZLAB
ZAI LAB LTD
PURCHASEGRANT
Stock grant
3,85228,277Jan 15, 2021Jan 20, 2021View →
Other insiders · JSPR
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About this filer
CIK 0001574558
ROLE
See Remarks
PRIMARY
JSPR
COMPANIES
2
ACTIVE SINCE
Jan 2021
MARKETPEEL · /INSIDER/0001574558DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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