According to recent filings covering the 90 days ending February 19, 2026, the three most significant insider holders at Griffon are Chairman Of The Board And Ceo Ronald J Kramer (1.88Mn shares), President And Coo Robert F Mehmel (815.29K shares), Evp And Chief Financial Officer Brian G Harris (158.65K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Ronald J Kramer | Chairman Of The Board And Ceo | 1,884,297 | 30 Dec, 2025 |
| Robert F Mehmel | President And Coo | 815,289 | 02 Dec, 2025 |
| Brian G Harris | Evp And Chief Financial Officer | 158,649 | 02 Dec, 2025 |
| Seth L. Kaplan | Sr Vp And Gen. Counsel And Secy | 119,747 | 11 Feb, 2026 |
| Travis W. Cocke | 93,775 | 22 Feb, 2024 | |
| Henry A Alpert | 69,139 | 08 Dec, 2025 | |
| Robert G Harrison | 50,296 | 04 Mar, 2022 | |
| Kevin F Sullivan | 42,762 | 13 Mar, 2025 | |
| Louis J. Grabowsky | 41,670 | 17 Feb, 2026 | |
| W. Christopher Durborow | Vice President & Cao | 39,963 | 02 Dec, 2025 |
| Thomas Brosig | 39,273 | 04 Mar, 2022 | |
| Victor Eugene Renuart | 36,442 | 22 Mar, 2024 | |
| Cheryl L Turnbull | 31,699 | 13 Mar, 2025 | |
| Lacy M. Johnson | 25,103 | 13 Mar, 2025 | |
| Samanta Hegedus | 24,715 | 13 Mar, 2025 | |
| Jerome L Coben | 18,119 | 13 Mar, 2025 | |
| James W Sight | 13,872 | 11 Feb, 2026 | |
| H.C. Charles Diao | 10,673 | 13 Mar, 2025 | |
| Michelle L Taylor | 9,023 | 17 Feb, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 13 Feb, 2026 | Louis J. Grabowsky | Common Stock | D | 11,000 | $93.06 | 41,670 | D | S |
| 12 Feb, 2026 | Michelle L Taylor | Common Stock | D | 1,650 | $92.56 | 9,023 | D | S |
| 09 Feb, 2026 | James W Sight | Common Stock | D | 3,070 | $96.15 | 13,872 | D | S |
| 09 Feb, 2026 | Seth L. Kaplan | Common Stock | D | 400 | $97.46 | 119,747 | D | S |
| 09 Feb, 2026 | Seth L. Kaplan | Common Stock | D | 4,274 | $95.61 | 123,387 | D | S |
| 09 Feb, 2026 | Seth L. Kaplan | Common Stock | D | 3,240 | $96.67 | 120,147 | D | S |
| 09 Feb, 2026 | Seth L. Kaplan | Common Stock | D | 7,086 | $94.67 | 127,661 | D | S |
| 24 Dec, 2025 | Ronald J Kramer | - | - | 1,884,297 | D | |||
| 24 Dec, 2025 | Ronald J Kramer | Common Stock | D | 5,000 | $0.00 | 1,884,297 | D | G |
| 24 Dec, 2025 | Ronald J Kramer | Common Stock | D | 62,785 | $0.00 | 1,889,297 | D | G |
| 22 Dec, 2025 | Seth L. Kaplan | Common Stock | D | 600 | $0.00 | 134,747 | D | G |
| 04 Dec, 2025 | Henry A Alpert | - | - | 69,139 | D | |||
| 04 Dec, 2025 | Henry A Alpert | Common Stock | D | 2,150 | $0.00 | 69,139 | D | G |
| 30 Nov, 2025 | Ronald J Kramer | Common Stock | D | 74,079 | $75.00 | 1,952,082 | D | F |
| 30 Nov, 2025 | Robert F Mehmel | Common Stock | D | 26,928 | $75.00 | 815,289 | D | F |
| 30 Nov, 2025 | Brian G Harris | Common Stock | D | 7,610 | $75.00 | 158,649 | D | F |
| 30 Nov, 2025 | Brian G Harris | - | - | 158,649 | D | |||
| 30 Nov, 2025 | Seth L. Kaplan | Common Stock | D | 8,921 | $75.00 | 135,347 | D | F |
| 30 Nov, 2025 | W. Christopher Durborow | Common Stock | D | 4,343 | $75.00 | 39,963 | D | F |
| 18 Nov, 2025 | Ronald J Kramer | - | - | 2,026,161 | D |