MarketPeel
Insider Trading Intelligence
BL

Brent M. Longnecker

GNPX
DIRECTOR · GENPREX, INC. · CIK 0001218777
FILING MIX · LIFETIME78%/22%
BUYS
7
SELLS
2
TOTAL VALUE
$62.3K
COMPANIES
1
ACTIVE SINCE
Jul 2020
HOLDINGS NOW
0
AVG SELL PX
$1.23
TRADE KIND
SHOWING 9 / 9
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
3 backtested trades · 8 horizons · 6 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Brent M. Longnecker, 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+100.00%-6.37%+1.36%-7.73%-11.30%
14d3+66.67%-18.72%+2.38%-21.10%-26.04%
30d3+66.67%-24.00%+5.36%-29.36%-36.10%
60d3+66.67%-36.12%+5.87%-42.00%-54.69%
90d3+66.67%-42.64%+8.17%-50.81%-62.44%
180d3(2 pending)+0.00%-35.71%+7.56%-43.27%-43.27%
1y3(2 pending)+0.00%-48.81%+12.46%-61.27%-61.27%
2y3(2 pending)+0.00%-80.95%+3.35%-84.31%-84.31%
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
GNPX · 0 shares · as of Apr 14, 2026
034,69969,398104,096138,795202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 7 buys / 2 sellsCOVERAGE · 24 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
GNPX
GENPREX, INC.
SALE
8$1.23$109,157Apr 14, 2026Apr 15, 2026View →
GNPX
GENPREX, INC.
SALE
10$1.23$120Apr 14, 2026Apr 15, 2026View →
GNPX
GENPREX, INC.
PURCHASEGRANT
Stock grant
9,0009,165Dec 22, 2025Dec 23, 2025View →
GNPX
GENPREX, INC.
PURCHASEGRANT
Stock grant
4,7508,220Dec 5, 2024Dec 6, 2024View →
GNPX
GENPREX, INC.
PURCHASEGRANT
Stock grant
123,795138,795Jun 27, 2023Jun 28, 2023View →
GNPX
GENPREX, INC.
PURCHASEGRANT
Stock grant
83,36883,368Jun 23, 2022Jun 27, 2022View →
GNPX
GENPREX, INC.
PURCHASEGRANT
Stock grant
32,37632,376Jun 24, 2021Jun 25, 2021View →
GNPX
GENPREX, INC.
PURCHASE
15,000$4.15$62.3K15,000Apr 5, 2021Apr 7, 2021View →
GNPX
GENPREX, INC.
PURCHASEGRANT
Stock grant
42,06842,068Jul 24, 2020Jul 28, 2020View →
Other insiders · GNPX
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About this filer
CIK 0001218777
ROLE
Director
PRIMARY
GNPX
COMPANIES
1
ACTIVE SINCE
Jul 2020
MARKETPEEL · /INSIDER/0001218777DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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