Griffon Corp (GFF) insider trading
Every open-market stock purchase and sale by Griffon Corp executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Ronald J Kramer (CEO) and 4 others sold $19.2M in the last 90 days.
- Last insider buy: Henry A Alpert (Director), $80K, 8 months ago.
Last 12 months: insiders bought $80K (1 buy) and sold $36.7M (21 sales). Last close $94.63 on Oct 21, 2026.
Recent GFF insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Aug 13, 2026 | Kevin F Sullivan (Director) | Sold | $370K |
| Aug 13, 2026 | Cheryl L Turnbull (Director) | Sold | $318K |
| Aug 11, 2026 | Robert F Mehmel (COO) | Sold | $347K |
| Aug 10, 2026 | Robert F Mehmel (COO) | Sold | $379K |
| Aug 10, 2026 | Robert F Mehmel (COO) | Sold | $305K |
| Aug 10, 2026 | Robert F Mehmel (COO) | Sold | $9.3K |
| Aug 7, 2026 | Robert F Mehmel (COO) | Sold | $1.4M |
| Aug 7, 2026 | Brian G Harris (CFO) | Sold | $564K |
| Aug 7, 2026 | Robert F Mehmel (COO) | Sold | $204K |
| Aug 7, 2026 | Robert F Mehmel (COO) | Sold | $59.8K |
| Aug 6, 2026 | Robert F Mehmel (COO) | Sold | $731K |
| Aug 6, 2026 | Robert F Mehmel (COO) | Sold | $573K |
| Aug 6, 2026 | Robert F Mehmel (COO) | Sold | $220K |
| Aug 6, 2026 | Robert F Mehmel (COO) | Sold | $21.8K |
| Aug 6, 2026 | Robert F Mehmel (COO) | Sold | $16.1K |
| Aug 5, 2026 | Ronald J Kramer (CEO) | Sold | $4.6M |
| Aug 5, 2026 | Ronald J Kramer (CEO) | Sold | $1.8M |
| Aug 5, 2026 | Ronald J Kramer (CEO) | Sold | $1.7M |
| Aug 5, 2026 | Ronald J Kramer (CEO) | Sold | $1.3M |
| Aug 5, 2026 | Brian G Harris (CFO) | Sold | $909K |
| Aug 5, 2026 | Ronald J Kramer (CEO) | Sold | $847K |
| Aug 5, 2026 | Robert F Mehmel (COO) | Sold | $563K |
| Aug 5, 2026 | Robert F Mehmel (COO) | Sold | $548K |
| Aug 5, 2026 | Robert F Mehmel (COO) | Sold | $354K |
| Aug 5, 2026 | Robert F Mehmel (COO) | Sold | $283K |
Who's trading GFF
- Cheryl L Turnbull, Director: sold $318K (1 sale), last Aug 13, 2026
- Kevin F Sullivan, Director: sold $370K (1 sale), last Aug 13, 2026
- Robert F Mehmel, COO: sold $9.4M (33 sales), last Aug 11, 2026
- Brian G Harris, CFO: sold $3M (5 sales), last Aug 7, 2026
- Ronald J Kramer, CEO: sold $19.7M (7 sales), last Aug 5, 2026
- Henry A Alpert, Director: bought $80K (1 buy), last Mar 5, 2026
- Michelle L Taylor, Director: sold $153K (1 sale), last Feb 18, 2026
- Jerome L Coben, Director: other filings, last Feb 18, 2026
- H.C. Charles Diao, Director: other filings, last Feb 18, 2026
- Louis J. Grabowsky, Director: sold $1M (1 sale), last Feb 18, 2026
- Samanta Hegedus, Director: other filings, last Feb 18, 2026
- Lacy M. Johnson, Director: other filings, last Feb 18, 2026
- James W Sight, Director: sold $295K (1 sale), last Feb 18, 2026
- W. Christopher Durborow, C-suite exec: sold $920K (1 sale), last Feb 17, 2026
- Seth L. Kaplan, VP: sold $1.4M (4 sales), last Feb 9, 2026
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