GRIFFON CORP (GFF) — insider trading
Industrials · NYSE
GRIFFON CORP (GFF) has 22 reported SEC Form 4 insider transactions in our data, including 1 open-market purchase and 18 open-market sales among the most recent 22 (latest 2026-06-30).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-30 | Harris Brian G | Officer (EVP, Chief Financial Officer) | Open-market sale | 6,183 | $98.01 | $606.0K | Form 4 |
| 2026-06-30 | MEHMEL ROBERT F | Officer (President and COO) | Open-market sale | 4,166 | $97.76 | $407.3K | Form 4 |
| 2026-06-26 | MEHMEL ROBERT F | Officer (President and COO) | Open-market sale | 4 | $97.50 | $390 | Form 4 |
| 2026-06-26 | MEHMEL ROBERT F | Officer (President and COO) | Open-market sale | 52 | $96.14 | $5.0K | Form 4 |
| 2026-06-26 | MEHMEL ROBERT F | Officer (President and COO) | Open-market sale | 230 | $95.52 | $22.0K | Form 4 |
| 2026-06-25 | MEHMEL ROBERT F | Officer (President and COO) | Open-market sale | 1,190 | $97.27 | $115.8K | Form 4 |
| 2026-06-25 | MEHMEL ROBERT F | Officer (President and COO) | Open-market sale | 1,534 | $96.41 | $147.9K | Form 4 |
| 2026-06-25 | MEHMEL ROBERT F | Officer (President and COO) | Open-market sale | 5,149 | $95.62 | $492.3K | Form 4 |
| 2026-06-24 | MEHMEL ROBERT F | Officer (President and COO) | Open-market sale | 100 | $96.03 | $9.6K | Form 4 |
| 2026-06-24 | MEHMEL ROBERT F | Officer (President and COO) | Open-market sale | 4,626 | $95.45 | $441.6K | Form 4 |
| 2026-06-17 | MEHMEL ROBERT F | Officer (President and COO) | Open-market sale | 547 | $95.37 | $52.2K | Form 4 |
| 2026-06-16 | MEHMEL ROBERT F | Officer (President and COO) | Open-market sale | 97 | $96.25 | $9.3K | Form 4 |
| 2026-06-16 | MEHMEL ROBERT F | Officer (President and COO) | Open-market sale | 2,921 | $95.36 | $278.5K | Form 4 |
| 2026-06-15 | MEHMEL ROBERT F | Officer (President and COO) | Open-market sale | 3,272 | $95.40 | $312.1K | Form 4 |
| 2026-06-12 | MEHMEL ROBERT F | Officer (President and COO) | Open-market sale | 5,501 | $95.18 | $523.6K | Form 4 |
| 2026-06-12 | KRAMER RONALD J | Director, Officer (Chairman of the Board and CEO) | Open-market sale | 48,971 | $94.62 | $4.63M | Form 4 |
| 2026-06-12 | KRAMER RONALD J | Director, Officer (Chairman of the Board and CEO) | Open-market sale | 51,029 | $95.21 | $4.86M | Form 4 |
| 2026-06-11 | Harris Brian G | Officer (EVP, Chief Financial Officer) | Open-market sale | 7,500 | $95.03 | $712.7K | Form 4 |
| 2026-03-05 | ALPERT HENRY A | Director | Open-market purchase | 1,000 | $79.99 | $80.0K | Form 4 |
| 2026-02-18 | ALPERT HENRY A | Director | Grant / award / vesting | 1,340 | $0.00 | $0 | Form 4 |
| 2026-02-18 | Johnson Lacy M. | Director | Grant / award / vesting | 1,340 | $0.00 | $0 | Form 4 |
| 2026-02-18 | Grabowsky Louis J. | Director | Grant / award / vesting | 1,340 | $0.00 | $0 | Form 4 |
Ask the chat about GFF's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: GRIFFON CORP (GFF).
Last updated 2026-06-30 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.