GRIFFON CORP (GFF) Stock
6 of the hedge funds AlphaScala tracks reported GFF in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is Renaissance Technologies's at $49.62M. Company insiders reported 0 open-market buys and 5 sales on SEC Form 4 in the 90 days to Nov 6, 2026.
Which hedge funds own GFF?
From 13F filings| Fund | Shares Held | Position Value | Change vs prior Q |
|---|---|---|---|
| Renaissance Technologies Jim Simons (founder) | 509K | $49.62M | -7% |
| Point72 Steve Cohen | 473K | $46.17M | -19% |
| D.E. Shaw David Shaw | 103K | $10.07M | -60% |
| Millennium Management Israel Englander | 91K | $8.90M | +4% |
| Citadel Ken Griffin | 68K | $6.59M | +8% |
| Marshall Wace | 11K | $1.09M | NEW |
13F holdings as of Jun 30, 2026
Explore all tracked funds →Are GRIFFON CORP insiders buying or selling?
SEC Form 4 filings| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Nov 5, 26 | Mehmel Robert F | President and COO | SELL | 6.9K | $744K |
| Nov 5, 26 | Mehmel Robert F | President and COO | SELL | 825 | $89K |
| Aug 13, 26 | Sullivan Kevin F | Director | SELL | 3.5K | $370K |
| Aug 13, 26 | Turnbull Cheryl L | Director | SELL | 3.0K | $318K |
| Aug 11, 26 | Mehmel Robert F | President and COO | SELL | 3.2K | $347K |
| Aug 10, 26 | Mehmel Robert F | President and COO | SELL | 3.6K | $379K |
| Aug 10, 26 | Mehmel Robert F | President and COO | SELL | 2.9K | $305K |
| Aug 10, 26 | Mehmel Robert F | President and COO | SELL | 88 | $9K |
| Aug 7, 26 | Harris Brian G | EVP, Chief Financial Officer | SELL | 5.3K | $564K |
| Aug 7, 26 | Mehmel Robert F | President and COO | SELL | 1.9K | $204K |
SEC Form 4 filings as of Nov 6, 2026
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Powered by TradingViewWhat does GRIFFON CORP do?
Griffon Corporation is a diverse global manufacturing company that focuses on delivering high-quality products and services across multiple sectors. The primary function of Griffon Corporation is to manage a portfolio of businesses that serve various industries, including home and building products, consumer and professional electronics, and defense electronics. One of its well-known segments, Clopay Building Products, is the largest manufacturer of residential garage doors in North America, which significantly impacts the construction and home improvement industries. Additionally, Griffon's AMES Companies is a leading provider of non-powered landscaping products, further influencing the home and garden sector. The company's Telephonics division is noted for providing advanced electronic systems for defense, aerospace, and civil markets. Griffon Corporation plays a critical role in these sectors by promoting innovation and efficiency. Established in 1959 and headquartered in New York, Griffon Corporation continues to evolve its operations to meet the changing demands of the markets it serves, emphasizing strong customer relationships and sustainable practices.