Henry A Alpert insider trades: Griffon (GFF) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Henry reports to the SEC
Open-market buys and sales
9 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Mar 5, 2026 | GFF | ↑ Buy | 1,000 | $79.99 | $80K | Direct | Mar 9, 2026 (4d) |
| Feb 8, 2024 | GFF | ↓ Sell | 2,495 | $67.22 | $168K | Direct | Feb 9, 2024 (1d) |
| Dec 21, 2021 | GFF | ↑ Buy | 3,000 | $26.40 | $79K | Direct | Dec 23, 2021 (2d) |
| Dec 4, 2020 | GFF | ↑ Buy | 5,000 | $20.02 | $100K | Direct | Dec 7, 2020 (3d) |
| Aug 3, 2018 | GFF | ↑ Buy | 5,000 | $18.09 | $90K | Direct | Aug 3, 2018 (0d) |
| Dec 2, 2016 | GFF | ↓ Sell | 14,980 | $23.55 | $353K | Direct | Dec 6, 2016 (4d) |
| Aug 28, 2012 | GFF | ↓ Sell | 15,000 | $9.64 | $145K | By Spartan Petroleum Profit Sharing Plan | Aug 30, 2012 (2d) |
| Aug 8, 2007 | GFF | ↑ Buy | 10,000 | $14.53 | $145K | By Spartan Petroleum Profit Sharing Plan | Aug 10, 2007 (2d) |
| Jun 17, 2005 | GFF | ↑ Buy | 5,000 | $22.07 | $110K | Spartan Pension Plan | Jun 17, 2005 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other GFF insiders
Open-market trades in the last 12 months
About Henry A Alpert's insider trades
Henry A Alpert is a director at Griffon (GFF). Since Jun 17, 2005, Henry has reported 6 open-market purchases worth $605K and 3 sales worth $665K on SEC Form 4. In the last 12 months: 1 buy ($80K).
Their filings also include grants and awards (22 filings), gifts (7 filings), option exercises (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every GFF insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.