CIK 0000050725 · Large accelerated filer
GRIFFON CORP
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- GFF
- Exchange
- NYSE
- Industry
- Metal Doors, Sash, Frames, Moldings & Trim
- FY end
- Sep 30
- Incorporated
- DE
- Entity type
- operating
- EIN
- 111893410
- Phone
- 2129575000
- Business address
- 712 FIFTH AVENUE, NEW YORK, NY, 10019
- Former names
- GRIFFON CORP, INSTRUMENT SYSTEMS CORP /DE/
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $833,307
- in 1 filing, $833K under 10b5-1 plans
Net −$833,307. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-08-05 | KRAMER RONALD J Chairman of the Board and CEO | Sale 10b5-1 | −17,322 | $101.58 | $1.8M | 1,754,059 |
| 2026-08-05 | KRAMER RONALD J Chairman of the Board and CEO | Sale 10b5-1 | −45,240 | $102.63 | $4.6M | 1,708,819 |
| 2026-08-05 | KRAMER RONALD J Chairman of the Board and CEO | Sale 10b5-1 | −16,402 | $103.37 | $1.7M | 1,692,417 |
| 2026-08-05 | KRAMER RONALD J Chairman of the Board and CEO | Sale 10b5-1 | −8,120 | $104.27 | $847K | 1,684,297 |
| 2026-08-05 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −617 | $98.68 | $61K | 785,283 |
| 2026-08-05 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −2,283 | $99.67 | $228K | 783,000 |
| 2026-08-05 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −3,527 | $100.46 | $354K | 779,473 |
| 2026-08-05 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −2,790 | $101.44 | $283K | 776,683 |
| 2026-08-05 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −5,341 | $102.59 | $548K | 771,342 |
| 2026-08-05 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −5,434 | $103.53 | $563K | 765,908 |
| 2026-08-05 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −2,217 | $104.12 | $231K | 763,691 |
| 2026-06-30 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −4,166 | $97.76 | $407K | 785,900 |
| 2026-06-30 | Harris Brian G EVP, Chief Financial Officer | Sale 10b5-1 | −6,183 | $98.01 | $606K | 144,966 |
| 2026-06-26 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −230 | $95.52 | $22K | 790,122 |
| 2026-06-26 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −52 | $96.14 | $5K | 790,070 |
| 2026-06-26 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −4 | $97.50 | $390 | 790,066 |
| 2026-06-25 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −5,149 | $95.62 | $492K | 793,076 |
| 2026-06-25 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −1,534 | $96.41 | $148K | 791,542 |
| 2026-06-25 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −1,190 | $97.27 | $116K | 790,352 |
| 2026-06-24 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −4,626 | $95.45 | $442K | 798,325 |
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