As of April 28, 2026, Hydrofarm Holdings's top three insider holders are Terence Fitch (President, 284.50K shares), William Douglas Toler (Chief Executive Officer, 221.67K shares), Melisa Denis (Director, 153.71K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Terence Fitch | President | 284,500 | 0 | 06 Jun, 2022 |
| William Douglas Toler | Chief Executive Officer | 221,672 | 0 | 08 Jan, 2026 |
| Melisa Denis | - | 153,713 | 0 | 07 Jun, 2023 |
| Susan Peters | - | 153,013 | 0 | 07 Jun, 2023 |
| Patrick Chung | - | 151,013 | 0 | 07 Jun, 2023 |
| Susan Peters | - | 61,348 | 0 | 10 Jun, 2025 |
| Patrick Chung | - | 61,148 | 0 | 10 Jun, 2025 |
| Melisa Denis | - | 58,423 | 0 | 08 Dec, 2025 |
| Bruce John Lindeman | Chief Executive Officer | 56,683 | 0 | 19 Aug, 2025 |
| Richard Christopher Yetter | - | 20,000 | 0 | 01 Oct, 2025 |
| Mark S Parker | President | 19,328 | 0 | 08 Jan, 2026 |
| Kevin Patrick O'Brien | Chief Financial Officer | 13,222 | 0 | 08 Jan, 2026 |
| Erica Ackerman | Cao And Corporate Controller | 7,540 | 0 | 08 Jan, 2026 |
| Joseph D Rumley | Chief Accounting Officer | 5,961 | 0 | 22 Mar, 2022 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 06 Jan, 2026 | Kevin Patrick O'Brien | Common Stock, $0.0001 par value per share | D | 1,150 | $1.51 | 13,222 | D | S |
| 06 Jan, 2026 | William Douglas Toler | Common Stock, $0.0001 par value per share | D | 5,189 | $1.51 | 221,672 | D | F |
| 06 Jan, 2026 | Erica Ackerman | Common Stock, $0.0001 par value per share | D | 687 | $1.51 | 7,540 | D | F |
| 06 Jan, 2026 | Mark S Parker | Common Stock, $0.0001 par value per share | D | 1,672 | $1.51 | 19,328 | D | F |
| 04 Dec, 2025 | Melisa Denis | Common Stock, $0.0001 par value per share | D | 2,875 | $1.88 | 58,543 | D | S |
| 05 Dec, 2025 | Melisa Denis | Common Stock, $0.0001 par value per share | D | 120 | $1.92 | 58,423 | D | S |
| 01 Oct, 2025 | Richard Christopher Yetter | Common Stock, $0.0001 par value per share | A | 20,000 | $0.00 | 20,000 | D | A |
| 18 Aug, 2025 | Kevin Patrick O'Brien | Common Stock, $0.0001 par value per share | D | 48 | $4.51 | 14,372 | D | F |
| 18 Aug, 2025 | William Douglas Toler | Common Stock, $0.0001 par value per share | D | 445 | $4.51 | 226,861 | D | F |
| 18 Aug, 2025 | Bruce John Lindeman | Common Stock, $0.0001 par value per share | D | 496 | $4.51 | 56,683 | D | F |
| 18 Aug, 2025 | Mark S Parker | Common Stock, $0.0001 par value per share | D | 370 | $4.51 | 21,000 | D | F |
| 11 Aug, 2025 | Mark S Parker | Common Stock, $0.0001 par value per share | D | 771 | $4.49 | 21,370 | D | F |
| 11 Aug, 2025 | Erica Ackerman | Common Stock, $0.0001 par value per share | D | 52 | $4.49 | 8,227 | D | F |
| 09 Jun, 2025 | Susan Peters | Common Stock, $0.0001 par value per share | A | 30,000 | $0.00 | 61,348 | D | A |
| 09 Jun, 2025 | Renah Persofsky | Common Stock, $0.0001 par value per share | A | 30,000 | $0.00 | 61,498 | D | A |
| 09 Jun, 2025 | Patrick Chung | Common Stock, $0.0001 par value per share | A | 30,000 | $0.00 | 61,148 | D | A |
| 09 Jun, 2025 | Melisa Denis | Common Stock, $0.0001 par value per share | A | 30,000 | $0.00 | 61,418 | D | A |
| 08 Apr, 2025 | Bruce John Lindeman | Common Stock, $0.0001 par value per share | D | 1,683 | $1.78 | 57,179 | D | F |
| 08 Apr, 2025 | Kevin Patrick O'Brien | Common Stock, $0.0001 par value per share | D | 863 | $1.78 | 14,420 | D | F |
| 08 Apr, 2025 | Mark S Parker | Common Stock, $0.0001 par value per share | D | 1,380 | $1.78 | 22,141 | D | F |