Griffon Corporation (GFF) Insider Trading

Over the last 3 months, GFF insiders made 0 open-market buys and 16 sales, a net sale of -$12.6M (SEC Form 4). Over the last 6 months, 261 institutions increased and 231 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
16
Net (3m)
-$12.6M
Insider trades by month Buys Sells
Nov
Dec
Feb
Feb
Mar
Jun
Context3-month price +34.2%Institutions mixed (13F)
DateInsiderTypeSharesPrice
Jun 30, 2026MEHMEL ROBERT Fofficer: President and COOSell230$95.52
Jun 30, 2026MEHMEL ROBERT Fofficer: President and COOSell4$97.50
Jun 30, 2026MEHMEL ROBERT Fofficer: President and COOSell52$96.14
Jun 26, 2026MEHMEL ROBERT Fofficer: President and COOSell100$96.03
Jun 26, 2026MEHMEL ROBERT Fofficer: President and COOSell1,190$97.27
Jun 26, 2026MEHMEL ROBERT Fofficer: President and COOSell1,534$96.41
Jun 26, 2026MEHMEL ROBERT Fofficer: President and COOSell4,626$95.45
Jun 26, 2026MEHMEL ROBERT Fofficer: President and COOSell5,149$95.62
Jun 18, 2026MEHMEL ROBERT Fofficer: President and COOSell97$96.25
Jun 18, 2026MEHMEL ROBERT Fofficer: President and COOSell547$95.37
Jun 18, 2026MEHMEL ROBERT Fofficer: President and COOSell2,921$95.36
Jun 16, 2026MEHMEL ROBERT Fofficer: President and COOSell5,501$95.18
Jun 16, 2026MEHMEL ROBERT Fofficer: President and COOSell3,272$95.40
Jun 15, 2026KRAMER RONALD Jdirector, officer: Chairman of the Board and CEOSell48,971$94.62
Jun 15, 2026Harris Brian Gofficer: EVP, Chief Financial OfficerSell7,500$95.03
Jun 15, 2026KRAMER RONALD Jdirector, officer: Chairman of the Board and CEOSell51,029$95.21
Mar 9, 2026ALPERT HENRY AdirectorBuy1,000$79.99
Feb 20, 2026Grabowsky Louis J.directorGrant1,340
Feb 20, 2026Taylor Michelle LdirectorGrant1,340
Feb 20, 2026Hegedus SamantadirectorGrant1,340
Feb 20, 2026Coben Jerome LdirectorGrant1,340
Feb 20, 2026Sullivan Kevin FdirectorGrant1,340
Feb 20, 2026Johnson Lacy M.directorGrant1,340
Feb 20, 2026Diao H.C. CharlesdirectorGrant1,340
Feb 20, 2026SIGHT JAMES WdirectorGrant1,340
Feb 20, 2026ALPERT HENRY AdirectorGrant1,340
Feb 20, 2026TURNBULL CHERYL LdirectorGrant1,340
Feb 18, 2026Durborow W. Christopherofficer: Vice President & CAOSell10,000$91.97
Feb 17, 2026Taylor Michelle LdirectorSell1,650$92.56
Feb 17, 2026Grabowsky Louis J.directorSell11,000$93.06

Source: GFF SEC Form 4 filings, latest Jun 30, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their GFF positions over the last 6 months (SEC Form 13F).

Increased
261
New positions
93
Reduced
231
Sold out
70
Largest moves
InstitutionActionSharesFiled
BLACKROCK, INC.Increased6.0MMay 13, 2026
BLACKROCK, INC.Increased5.9MFeb 12, 2026
VANGUARD GROUP INCReduced5.9MJan 29, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position3.8MMay 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position3.7MMay 8, 2026
VOSS CAPITAL, LLCIncreased1.8MMay 15, 2026
VOSS CAPITAL, LLCIncreased1.8MFeb 13, 2026
STATE STREET CORPIncreased1.5MFeb 13, 2026
STATE STREET CORPReduced1.5MMay 15, 2026
DIMENSIONAL FUND ADVISORS LPReduced1.0MFeb 12, 2026
DIMENSIONAL FUND ADVISORS LPReduced1.0MMay 7, 2026
FULLER & THALER ASSET MANAGEMENT, INC.Increased1.0MFeb 18, 2026
FULLER & THALER ASSET MANAGEMENT, INC.Reduced1.0MMay 14, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased924KMay 15, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased922KFeb 9, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.