MarketPeel
Insider Trading Intelligence
JG

John M. Gebbia

SIEB
INSIDER · SIEBERT FINANCIAL CORP · CIK 0001727425
FILING MIX · LIFETIME52%/48%
BUYS
11
SELLS
10
TOTAL VALUE
$10.67M
COMPANIES
1
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
1,921,891
AVG SELL PX
$4.75
TRADE KIND
SHOWING 21 / 21
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
2 backtested trades · 8 horizonsHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by John M. Gebbia, 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
7d2+0.00%+2.06%+0.53%+1.53%+1.53%
14d2+0.00%+2.51%+2.41%+0.10%+0.10%
30d2+0.00%+16.83%+1.68%+15.15%+15.15%
60d2+0.00%+21.85%+7.48%+14.37%+14.37%
90d2+50.00%+10.51%+11.78%-1.27%-1.27%
180d2+50.00%-14.01%+16.07%-30.08%-30.08%
1y2+50.00%-6.40%+40.26%-46.66%-46.66%
2y2+50.00%-2.49%+49.54%-52.03%-52.03%
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
SIEB · 1,921,891 shares · as of Jan 20, 2026
04,384,8008,769,60013,154,40017,539,2002020202120222023202420252026SHARES 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
FLOW · 11 buys / 10 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SIEB
SIEBERT FINANCIAL CORP
PURCHASEGRANT
Gift
26,000516,000Jan 20, 2026Jan 22, 2026View →
SIEB
SIEBERT FINANCIAL CORP
SALE
26,000490,000Jan 20, 2026Jan 22, 2026View →
SIEB
SIEBERT FINANCIAL CORP
SALEGRANT
Gift
3,0001,921,891Jan 20, 2026Jan 22, 2026View →
SIEB
SIEBERT FINANCIAL CORP
SALE
26,000490,000Nov 20, 2025Nov 24, 2025View →
SIEB
SIEBERT FINANCIAL CORP
PURCHASEGRANT
Gift
26,000516,000Nov 20, 2025Nov 24, 2025View →
SIEB
SIEBERT FINANCIAL CORP
PURCHASE
300,000490,000Jun 11, 2025Jun 12, 2025View →
SIEB
SIEBERT FINANCIAL CORP
SALE
100,0001,924,891Jun 11, 2025Jun 12, 2025View →
SIEB
SIEBERT FINANCIAL CORP
PURCHASEGRANT
Gift
118,0002,024,891Mar 3, 2025Mar 5, 2025View →
SIEB
SIEBERT FINANCIAL CORP
SALEGRANT
Gift
1,0001,906,891Dec 9, 2024Mar 5, 2025View →
SIEB
SIEBERT FINANCIAL CORP
PURCHASEGRANT
Gift
36,000190,000Jan 19, 2024Jan 23, 2024View →
SIEB
SIEBERT FINANCIAL CORP
PURCHASEGRANT
Gift
36,000154,000Dec 14, 2023Dec 18, 2023View →
SIEB
SIEBERT FINANCIAL CORP
SALE
100,000$1.85$185.0K1,909,091Apr 10, 2023Apr 12, 2023View →
SIEB
SIEBERT FINANCIAL CORP
SALE
100,000$1.85$185.0K17,439,200Apr 10, 2023Apr 12, 2023View →
SIEB
SIEBERT FINANCIAL CORP
SALEGRANT
Gift
100,00017,539,200Dec 14, 2022Dec 16, 2022View →
SIEB
SIEBERT FINANCIAL CORP
SALEGRANT
Gift
40,0002,009,091Dec 14, 2022Dec 16, 2022View →
SIEB
SIEBERT FINANCIAL CORP
PURCHASEGRANT
Gift
80,000118,000Dec 14, 2022Dec 16, 2022View →
SIEB
SIEBERT FINANCIAL CORP
PURCHASE
222,4102,049,091Apr 1, 2021Apr 5, 2021View →
SIEB
SIEBERT FINANCIAL CORP
PURCHASEGRANT
Gift
12,00036,000Feb 12, 2021Feb 17, 2021View →
SIEB
SIEBERT FINANCIAL CORP
SALE
685,155$5.60$3.84M1,826,681Apr 16, 2020Apr 20, 2020View →
SIEB
SIEBERT FINANCIAL CORP
PURCHASEGRANT
Gift
6,00024,000Jan 7, 2020Jan 10, 2020View →
SIEB
SIEBERT FINANCIAL CORP
PURCHASE
716,917$9.02$6.47M2,511,836Jan 1, 2020Jan 3, 2020View →
Other insiders · SIEB
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About this filer
CIK 0001727425
ROLE
Insider
PRIMARY
SIEB
COMPANIES
1
ACTIVE SINCE
Jan 2020
MARKETPEEL · /INSIDER/0001727425DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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