GFF
Griffon Corporation
NYSE · Industrials · Conglomerates · US
$99.68
+1.97%0
Insider buys (3m)
47
Insider sells (3m)
-$32.8M
Net value (3m)
+16.0%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Aug 14, 2026 | Sullivan Kevin F · director | Sale | 3,500 | $106 |
| Aug 14, 2026 | TURNBULL CHERYL L · director | Sale | 3,000 | $106 |
| Aug 13, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 3,240 | $107 |
| Aug 11, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 2,913 | $105 |
| Aug 11, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 13,464 | $107 |
| Aug 11, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 1,911 | $107 |
| Aug 11, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 3,638 | $104 |
| Aug 11, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 553 | $108 |
| Aug 11, 2026 | Harris Brian G · officer: EVP, Chief Financial Officer | Sale | 5,267 | $107 |
| Aug 11, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 88 | $105 |
| Aug 7, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 5,476 | $105 |
| Aug 7, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 2,074 | $106 |
| Aug 7, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 3,527 | $100 |
| Aug 7, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 617 | $99 |
| Aug 7, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 2,283 | $100 |
| Aug 7, 2026 | KRAMER RONALD J · director, officer: Chairman of the Board and CEO | Sale | 17,322 | $102 |
| Aug 7, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 158 | $102 |
| Aug 7, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 211 | $104 |
| Aug 7, 2026 | Harris Brian G · officer: EVP, Chief Financial Officer | Sale | 2,233 | $104 |
| Aug 7, 2026 | KRAMER RONALD J · director, officer: Chairman of the Board and CEO | Sale | 8,120 | $104 |
| Aug 7, 2026 | Harris Brian G · officer: EVP, Chief Financial Officer | Sale | 8,817 | $103 |
| Aug 7, 2026 | KRAMER RONALD J · director, officer: Chairman of the Board and CEO | Sale | 12,916 | $100 |
| Aug 7, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 6,933 | $105 |
| Aug 7, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 5,341 | $103 |
| Aug 7, 2026 | KRAMER RONALD J · director, officer: Chairman of the Board and CEO | Sale | 16,402 | $103 |
| Aug 7, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 2,790 | $101 |
| Aug 7, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 2,217 | $104 |
| Aug 7, 2026 | KRAMER RONALD J · director, officer: Chairman of the Board and CEO | Sale | 45,240 | $103 |
| Aug 7, 2026 | MEHMEL ROBERT F · officer: President and COO | Sale | 5,434 | $104 |
| Jul 2, 2026 | Harris Brian G · officer: EVP, Chief Financial Officer | Sale | 6,183 | $98 |
Institutional positioning
13F filings over the trailing two quarters
New 108Increased 250Reduced 240Sold out 43
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 6,055,910 | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 5,962,365 | May 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 3,745,114 | May 8, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 3,730,377 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 1,918,661 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 1,897,115 | Aug 13, 2026 |
| VOSS CAPITAL, LLC | Increased | 1,825,000 | May 15, 2026 |
| FMR LLC | Increased | 1,629,720 | Aug 13, 2026 |
| STATE STREET CORP | Increased | 1,565,340 | Aug 7, 2026 |
| Voss Capital, LP | Reduced | 1,516,857 | Aug 14, 2026 |
| STATE STREET CORP | Reduced | 1,499,356 | May 15, 2026 |
| FULLER & THALER ASSET MANAGEMENT, INC. | Increased | 1,076,994 | Aug 12, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 1,011,360 | May 7, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 1,005,620 | Aug 11, 2026 |
| FULLER & THALER ASSET MANAGEMENT, INC. | Reduced | 1,002,013 | May 14, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Aug 14, 2026