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 |
|---|---|---|---|---|---|---|
| 2026-11-05 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −6,918 | $107.56 | $744K | 716,114 |
| 2026-11-05 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −825 | $108.13 | $89K | 715,289 |
| 2026-08-11 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −3,240 | $107.16 | $347K | 723,032 |
| 2026-08-10 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −3,638 | $104.08 | $379K | 729,273 |
| 2026-08-10 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −2,913 | $104.64 | $305K | 726,360 |
| 2026-08-10 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −88 | $105.21 | $9K | 726,272 |
| 2026-08-07 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −1,911 | $106.60 | $204K | 746,928 |
| 2026-08-07 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −13,464 | $107.43 | $1.4M | 733,464 |
| 2026-08-07 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −553 | $108.09 | $60K | 732,911 |
| 2026-08-06 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −158 | $102.03 | $16K | 763,533 |
| 2026-08-06 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −211 | $103.52 | $22K | 763,322 |
| 2026-08-06 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −5,476 | $104.56 | $573K | 757,846 |
| 2026-08-06 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −6,933 | $105.46 | $731K | 750,913 |
| 2026-08-06 | MEHMEL ROBERT F President and COO | Sale 10b5-1 | −2,074 | $106.27 | $220K | 748,839 |
| 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 |
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