HYFM · Insider Trading
Hydrofarm Holdings Group, Inc. Common Stock
Every open-market purchase and sale reported by HYFM officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-29 | William Douglas Toler | Chief Executive Officer | A | +55,248 | +$50.00K |
| 2026-10-29 | Kevin Patrick O'Brien | Chief Financial Officer | A | +55,248 | +$50.00K |
| 2026-10-29 | Richard Christopher Yetter | Director | A | +138,121 | +$125.00K |
| 2026-10-29 | Mark S Parker | President | Buy | +22,099 | +$20.00K |
| 2026-08-11 | Erica Ackerman | CAO and Corporate Controller | F | −138 | −$221 |
| 2026-08-11 | Mark S Parker | President | F | −740 | −$1.18K |
| 2026-06-25 | Patrick Chung | Director | A | +30,000 | — |
| 2026-06-25 | Renah Persofsky | Director | A | +30,000 | — |
| 2026-06-25 | Richard Christopher Yetter | Director | A | +30,000 | — |
| 2026-06-25 | Melisa Denis | Director | A | +30,000 | — |
| 2026-01-08 | William Douglas Toler | Chief Executive Officer | F | −5,189 | −$7.84K |
| 2026-01-08 | Mark S Parker | President | F | −1,672 | −$2.52K |
| 2026-01-08 | Erica Ackerman | CAO and Corporate Controller | F | −687 | −$1.04K |
| 2026-01-08 | Kevin Patrick O'Brien | Chief Financial Officer | Sell | −1,150 | −$1.74K |
| 2025-12-08 | Melisa Denis | Director | Sell | −2,995 | −$5.64K |
| 2025-10-02 | Richard Christopher Yetter | Director | A | +20,000 | — |
| 2025-08-20 | Mark S Parker | President | F | −370 | −$1.67K |
| 2025-08-20 | Bruce John Lindeman | Chief Executive Officer | F | −496 | −$2.24K |
| 2025-08-20 | William Douglas Toler | Director | F | −445 | −$2.01K |
| 2025-08-20 | Kevin Patrick O'Brien | Chief Financial Officer | F | −48 | −$216 |
| 2025-08-13 | Mark S Parker | President | F | −771 | −$3.46K |
| 2025-08-13 | Erica Ackerman | CAO and Corporate Controller | F | −52 | −$233 |
| 2025-06-10 | Renah Persofsky | Director | A | +30,000 | — |
| 2025-06-10 | Melisa Denis | Director | A | +30,000 | — |
| 2025-06-10 | Patrick Chung | Director | A | +30,000 | — |
| 2025-06-10 | Susan Peters | Director | A | +30,000 | — |
| 2025-04-10 | Bruce John Lindeman | Chief Executive Officer | F | −1,683 | −$3.00K |
| 2025-04-10 | Erica Ackerman | CAO and Corporate Controller | F | −473 | −$842 |
| 2025-04-10 | Mark S Parker | President | F | −1,380 | −$2.46K |
| 2025-04-10 | William Douglas Toler | Director | F | −2,966 | −$5.28K |
| 2025-04-10 | Kevin Patrick O'Brien | Chief Financial Officer | F | −863 | −$1.54K |
| 2025-03-26 | William Douglas Toler | Director | F | −198 | −$564 |
| 2025-03-26 | Kevin Patrick O'Brien | Chief Financial Officer | F | −292 | −$832 |
| 2025-03-04 | Erica Ackerman | CAO and Corporate Controller | A | +1,151 | — |
| 2025-03-04 | William Douglas Toler | Director | A | +10,001 | — |
| 2025-03-04 | Kevin Patrick O'Brien | Chief Financial Officer | A | +2,501 | — |
| 2025-03-04 | Bruce John Lindeman | Chief Executive Officer | A | +3,959 | — |
| 2025-03-04 | Mark S Parker | President | A | +2,751 | — |
| 2025-02-28 | Mark S Parker | President | F | −84 | −$453 |
| 2025-02-28 | Bruce John Lindeman | Chief Executive Officer | F | −160 | −$862 |
| 2025-01-03 | Bruce John Lindeman | Chief Executive Officer | A | +250,000 | — |
| 2025-01-03 | Erica Ackerman | CAO and Corporate Controller | A | +50,000 | — |
| 2025-01-03 | Mark S Parker | President | A | +100,000 | — |
| 2025-01-03 | Kevin Patrick O'Brien | Chief Financial Officer | A | +100,000 | — |
| 2025-01-03 | William Douglas Toler | Director | A | +350,000 | — |
| 2024-11-04 | William Douglas Toler | CEO and Chairman of the Board | F | −21,113 | −$14.29K |
| 2024-11-04 | Mark S Parker | Executive Vice President | F | −138 | −$93 |
| 2024-10-02 | Mark S Parker | Executive Vice President | F | −134 | −$92 |
| 2024-09-04 | Mark S Parker | Executive Vice President | F | −134 | −$58 |
| 2024-08-30 | William Douglas Toler | CEO and Chairman of the Board | Buy | +100,000 | +$49.80K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Richard Christopher Yetter | Director | 493,121 | $343.11K |
| William Douglas Toler | Chief Executive Officer | 276,920 | $192.68K |
| Renah Persofsky | Director | 91,498 | $63.66K |
| Patrick Chung | Director | 91,148 | $63.42K |
| Melisa Denis | Director | 88,423 | $61.52K |
| Kevin Patrick O'Brien | Chief Financial Officer | 68,470 | $47.64K |
| Susan Peters | Director | 61,348 | $42.69K |
| Bruce John Lindeman | Chief Executive Officer | 56,683 | $39.44K |
| Mark S Parker | President | 40,657 | $28.29K |
| Erica Ackerman | CAO and Corporate Controller | 7,402 | $5.15K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the HYFM quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.