Griffon Corporation (GFF) ownership: Top institutional holder: BlackRock, Inc. ($433.34M). Insider activity: Net Seller (1 buys, 19 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 5962365.00 | $433.34M | 2026-03-31 |
| VANGUARD GROUP INC | 5855976.00 | $431.29M | 2025-12-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3745114.00 | $272.19M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 1918661.00 | $139.45M | 2026-03-31 |
| Voss Capital, LP | 1825000.00 | $132.64M | 2026-03-31 |
| STATE STREET CORP | 1499356.00 | $108.97M | 2026-03-31 |
| DIMENSIONAL FUND ADVISORS LP | 1011360.00 | $73.50M | 2026-03-31 |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1002013.00 | $72.83M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-11 | |
| Buy | null | 2026-03-05 | |
| Sell | null | 2026-02-18 | |
| Sell | null | 2026-02-18 | |
| Sell | null | 2026-02-18 | |
| Sell | null | 2026-02-18 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.