GRIFFON CORP
Total Trades
33
Buys
0
Sells
33
Largest Trade
$1M+
Insiders
14
Institutional Funds
278
Inst. Value
$1M+
Activist Filings
23
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Durborow W. Christopher | Vice President & CAO | SELL | $500K+ | 10K | $91.97 | Feb 18, 2026 |
| Grabowsky Louis J. | Director | SELL | $1M+ | 11K | $93.06 | Feb 17, 2026 |
| Taylor Michelle L | Director | SELL | $100K–$500K | 2K | $92.56 | Feb 17, 2026 |
| Kaplan Seth L. | Sr VP | SELL | $1M+ | 15K | $95.44 | Feb 11, 2026 |
| SIGHT JAMES W | Director | SELL | $100K–$500K | 3K | $96.15 | Feb 11, 2026 |
| Kaplan Seth L. | Sr VP | SELL | $1M+ | 13K | $82.73 | Dec 3, 2024 |
| Harris Brian G | CFO | SELL | $1M+ | 19K | $82.60 | Dec 3, 2024 |
| Renuart Victor Eugene | Director | SELL | $500K+ | 17K | $38.73 | Nov 29, 2024 |
| Sullivan Kevin F | Director | SELL | $500K+ | 9K | $75.50 | Nov 20, 2024 |
| SIGHT JAMES W | Director | SELL | $100K–$500K | 4K | $76.42 | Nov 15, 2024 |
| MEHMEL ROBERT F | President and COO | SELL | $1M+ | 25K | $74.97 | Nov 15, 2024 |
| Coben Jerome L | Director | SELL | $100K–$500K | 2K | $76.34 | Nov 15, 2024 |
| Hegedus Samanta | Director | SELL | $100K–$500K | 3K | $80.49 | Nov 15, 2024 |
| Grabowsky Louis J. | Director | SELL | $500K+ | 11K | $77.02 | Nov 15, 2024 |
| KRAMER RONALD J | Chairman of the Bo… | SELL | $1M+ | 309K | $74.20 | Nov 13, 2024 |
| MEHMEL ROBERT F | President and COO | SELL | $500K+ | 9K | $70.10 | Nov 13, 2024 |
| MEHMEL ROBERT F | President and COO | SELL | $50K–$100K | 912 | $70.06 | Oct 18, 2024 |
| KRAMER RONALD J | Chairman of the Bo… | SELL | $100K–$500K | 7K | $70.06 | Oct 18, 2024 |
| KRAMER RONALD J | Chairman of the Bo… | SELL | $15K–$50K | 300 | $70.07 | Oct 4, 2024 |
| MEHMEL ROBERT F | President and COO | SELL | $100K–$500K | 3K | $70.04 | Oct 1, 2024 |
| KRAMER RONALD J | Chairman of the Bo… | SELL | $1M+ | 19K | $70.02 | Oct 1, 2024 |
| MEHMEL ROBERT F | President and COO | SELL | $100K–$500K | 3K | $70.01 | Sep 25, 2024 |
| KRAMER RONALD J | Chairman of the Bo… | SELL | $1M+ | 20K | $70.01 | Sep 25, 2024 |
| KRAMER RONALD J | Chairman of the Bo… | SELL | $1M+ | 45K | $70.05 | Sep 23, 2024 |
| MEHMEL ROBERT F | President and COO | SELL | $500K+ | 9K | $70.03 | Sep 23, 2024 |
| Sullivan Kevin F | Director | SELL | $500K+ | 12K | $65.00 | Aug 23, 2024 |
| Durborow W. Christopher | Vice President & CAO | SELL | $500K+ | 13K | $66.88 | Jun 13, 2024 |
| KRAMER RONALD J | Chairman of the Bo… | SELL | $1M+ | 100K | $67.07 | Jun 13, 2024 |
| Coben Jerome L | Director | SELL | $100K–$500K | 2K | $69.44 | Feb 27, 2024 |
| Renuart Victor Eugene | Director | SELL | $100K–$500K | 5K | $68.08 | Feb 13, 2024 |
| SIGHT JAMES W | Director | SELL | $100K–$500K | 2K | $67.38 | Feb 9, 2024 |
| TURNBULL CHERYL L | Director | SELL | $100K–$500K | 5K | $67.53 | Feb 9, 2024 |
| ALPERT HENRY A | Director | SELL | $100K–$500K | 2K | $67.22 | Feb 9, 2024 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 278 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Voss Capital, LP | 1.8M | $1M+ | SH |
| STATE STREET CORP | 1.5M | $1M+ | SH |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1.0M | $1M+ | SH |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1.0M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 982K | $1M+ | SH |
| LSV ASSET MANAGEMENT | 867K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 798K | $1M+ | SH |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 755K | $1M+ | SH |
| Point72 Asset Management, L.P. | 659K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 549K | $1M+ | SH |
| GAMCO INVESTORS, INC. ET AL | 512K | $1M+ | SH |
| RAYMOND JAMES FINANCIAL INC | 475K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 460K | $1M+ | SH |
| PRIMECAP MANAGEMENT CO/CA/ | 411K | $1M+ | SH |
| SEGALL BRYANT & HAMILL, LLC | 324K | $1M+ | SH |
| GABELLI FUNDS LLC | 299K | $1M+ | SH |
| GOLDMAN SACHS GROUP INC | 259K | $1M+ | SH |
| JENNISON ASSOCIATES LLC | 253K | $1M+ | SH |
| PRINCIPAL FINANCIAL GROUP INC | 230K | $1M+ | SH |
| LOOMIS SAYLES & CO L P | 220K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Jul 18, 2025
12.3%
5.8M shares
SC 13G/A · Feb 5, 2025
13.4%
6.4M shares
SC 13G/A · Nov 12, 2024
12.6%
6.2M shares
SC 13G/A · Nov 4, 2024
12.6%
6.2M shares
SC 13D/A · Feb 22, 2024
1.0%
523K shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
11.2%
5.9M shares
SC 13G/A · Jan 23, 2024
12.3%
6.4M shares
SC 13D/A · Sep 7, 2023
2.7%
1.5M shares
Dimensional Fund Advisors LP 30-0447847
SC 13G/A · Feb 10, 2023
5.7%
3.3M shares
SC 13G/A · Jan 26, 2023
12.7%
7.2M shares
SC 13G/A · Jan 20, 2023
12.7%
7.2M shares
SC 13D/A · Jan 10, 2023
2.7%
1.5M shares
Gabelli Funds, LLC I.D. No. 13-4044523
SC 13D/A · Jan 10, 2023
1.2%
689K shares
SC 13D/A · Dec 30, 2022
2.7%
1.5M shares
Gabelli Funds, LLC I.D. No. 13-4044523
SC 13D/A · Dec 21, 2022
1.6%
940K shares
Gabelli Funds, LLC I.D. No. 13-4044523
SC 13D/A · Nov 15, 2022
2.3%
1.3M shares
Gabelli Funds, LLC I.D. No. 13-4044523
SC 13D/A · Aug 26, 2022
2.6%
1.5M shares
SC 13D · Aug 15, 2022
2.8%
1.6M shares
Gabelli Funds, LLC I.D. No. 13-4044523
SC 13D/A · May 27, 2022
2.9%
1.6M shares
The Vanguard Group - 23-1945930
SC 13G/A · Apr 8, 2022
10.1%
5.7M shares
SC 13G · Feb 11, 2022
9.1%
5.1M shares
SC 13G/A · Jan 27, 2022
13.3%
7.5M shares
SC 13G/A · Jan 25, 2022
13.3%
7.5M shares