🕵️ Griffon Corp ($GFF)
SEC insider & ownership activity, last 12 months · CIK 50725 · every row links its SEC filing
Over the last 12 months insiders sold $17.5M against $80K of open-market buying. Ronald J. Kramer sold $9.5M in discretionary trades (Jun). Blackrock, Inc. trimmed 13.4% → 12.3%. No red-flag 8-Ks in the window.
🚨 1 signal active —
planned-vs-executed verdicts, pre-event flags, and cluster context live in the
API and the
alerts bot.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $80K (1 lots) · 8 sellers, $17.5M (26 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Ronald J. Kramer | 0 | – | 2 | $9.5M | Jun 12, 2026 |
| Robert F. Mehmel | 0 | – | 14 | $2.8M | Jun 30, 2026 |
| Seth L. Kaplan | 0 | – | 4 | $1.4M | Feb 9, 2026 |
| Brian G. Harris | 0 | – | 2 | $1.3M | Jun 30, 2026 |
| Louis J. Grabowsky | 0 | – | 1 | $1.0M | Feb 13, 2026 |
| William C Durborow | 0 | – | 1 | $920K | Feb 17, 2026 |
| James Sight | 0 | – | 1 | $295K | Feb 9, 2026 |
| Michelle L. Taylor | 0 | – | 1 | $153K | Feb 12, 2026 |
| Henry A. Alpert | 1 | $80K | 0 | – | Mar 5, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 12.3% | 13G | Jul 18, 2025 | filing ↗ | |
| Vanguard Portfolio Management | 8.1% | 13G | Apr 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Brian G. Harris | $606K | Jun 30, 2026 | filing ↗ |
| Robert Mehmel | $4.7M | Jun 12, 2026 | filing ↗ |
| Ronald J. Kramer | $9.1M | Jun 12, 2026 | filing ↗ |
| Brian G. Harris | $713K | Jun 11, 2026 | filing ↗ |
| William C Durborow | $921K | Feb 17, 2026 | filing ↗ |
| Louis J. Grabowsky | $1.0M | Feb 13, 2026 | filing ↗ |
| Michelle L. Taylor | $153K | Feb 12, 2026 | filing ↗ |
| James Sight | $295K | Feb 9, 2026 | filing ↗ |
| Seth L. Kaplan | $1.4M | Feb 9, 2026 | filing ↗ |
| Ronald J. Kramer | $9.5M | Feb 9, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Material agreement (1.01) | Jun 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 7, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Shareholder vote (5.07) | Feb 18, 2026 | filing ↗ |
| Earnings (2.02) | Feb 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 5, 2026 | filing ↗ |
| Earnings (2.02) | Nov 19, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 19, 2025 | filing ↗ |
| Earnings (2.02) | Aug 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 6, 2025 | filing ↗ |