MarketPeel
Insider Trading Intelligence
BH

Brian G. Harris

GFF
EVP, CHIEF FINANCIAL OFFICER · GRIFFON CORP · CIK 0001470077
FILING MIX · LIFETIME32%/68%
BUYS
7
SELLS
15
TOTAL VALUE
$7.57M
COMPANIES
1
ACTIVE SINCE
Nov 2020
HOLDINGS NOW
144,966
AVG SELL PX
$56.61
TRADE KIND
SHOWING 22 / 22
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
6 backtested trades · 8 horizons · 6 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Brian G. Harris, 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
7d6+33.33%+0.79%+1.08%-0.29%+0.14%
14d6+33.33%+0.82%+1.43%-0.61%+1.71%
30d6+33.33%-3.09%+1.82%-4.91%-2.25%
60d6+33.33%+1.05%+3.65%-2.60%-4.62%
90d6+33.33%+6.38%+4.34%+2.05%+8.44%
180d6+33.33%-3.17%-0.22%-2.96%+3.02%
1y6+33.33%+6.28%+16.66%-10.38%-4.84%
2y6(6 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
GFF · 144,966 shares · as of Jun 30, 2026
060,805121,610182,415243,220202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
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 / 15 sellsCOVERAGE · 23 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
GFF
GRIFFON CORP
SALE10b5-1
10b5-1 plan
6,183$98.01$606.0K144,966Jun 30, 2026Jul 2, 2026View →
GFF
GRIFFON CORP
SALE10b5-1
10b5-1 plan
7,500$95.03$712.7K151,149Jun 11, 2026Jun 15, 2026View →
GFF
GRIFFON CORP
SALE
EVP, Chief Financial Officer
7,610$75.00$570.8K158,649Nov 30, 2025Dec 2, 2025View →
GFF
GRIFFON CORP
SALE10b5-1
10b5-1 plan
13,983$82.43$1.15M170,816Dec 2, 2024Dec 3, 2024View →
GFF
GRIFFON CORP
SALE10b5-1
10b5-1 plan
4,557$83.11$378.7K166,259Dec 2, 2024Dec 3, 2024View →
GFF
GRIFFON CORP
SALE
EVP, Chief Financial Officer
8,879$84.30$748.5K184,799Nov 30, 2024Dec 3, 2024View →
GFF
GRIFFON CORP
SALE10b5-1
10b5-1 plan
5,819$67.65$393.7K193,678Sep 17, 2024Sep 19, 2024View →
GFF
GRIFFON CORP
SALE10b5-1
10b5-1 plan
251$67.50$16.9K199,497Sep 16, 2024Sep 17, 2024View →
GFF
GRIFFON CORP
SALE10b5-1
10b5-1 plan
10,000$65.64$656.4K203,062Sep 13, 2024Sep 17, 2024View →
GFF
GRIFFON CORP
SALE10b5-1
10b5-1 plan
3,314$67.50$223.7K199,748Sep 13, 2024Sep 17, 2024View →
GFF
GRIFFON CORP
SALE
SVP, Chief Financial Officer
7,170$56.59$405.8K213,062Dec 17, 2023Dec 19, 2023View →
GFF
GRIFFON CORP
SALE
SVP, Chief Financial Officer
8,958$46.53$416.8K220,232Nov 30, 2023Dec 4, 2023View →
GFF
GRIFFON CORP
PURCHASE
SVP, Chief Financial Officer
19,339229,190Nov 14, 2023Nov 16, 2023View →
GFF
GRIFFON CORP
PURCHASEGRANT
Stock grant
19,339229,190Nov 14, 2023Nov 17, 2023View →
GFF
GRIFFON CORP
SALE
SVP, Chief Financial Officer
7,827$35.31$276.4K209,851Nov 30, 2022Dec 2, 2022View →
GFF
GRIFFON CORP
PURCHASEGRANT
Stock grant
22,562217,678Nov 16, 2022Nov 17, 2022View →
GFF
GRIFFON CORP
SALE
SVP, Chief Financial Officer
26,260$26.31$690.9K216,960Nov 30, 2021Dec 1, 2021View →
GFF
GRIFFON CORP
PURCHASEGRANT
Stock grant
27,498221,376Nov 15, 2021Nov 17, 2022View →
GFF
GRIFFON CORP
PURCHASEGRANT
Stock grant
49,342243,220Nov 15, 2021Nov 17, 2021View →
GFF
GRIFFON CORP
PURCHASEGRANT
Stock grant
18,220193,878Dec 17, 2020Dec 21, 2020View →
GFF
GRIFFON CORP
PURCHASEGRANT
Stock grant
27,211175,658Dec 8, 2020Dec 9, 2020View →
GFF
GRIFFON CORP
SALE
SVP, Chief Financial Officer
15,427$20.85$321.7K148,447Nov 30, 2020Dec 2, 2020View →
Other insiders · GFF
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About this filer
CIK 0001470077
ROLE
EVP, Chief Financial Officer
PRIMARY
GFF
COMPANIES
1
ACTIVE SINCE
Nov 2020
MARKETPEEL · /INSIDER/0001470077DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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