Hydrofarm Holdings Group
HYFM · NASDAQ
$0.754−$0.0467 (−5.83%)TodayMarket closed ·
Prev close $0.8007
Who owns HYFM
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 33.1% of HYFM’s shares.
- Bogaczyk (Janusz Michal)9.5%
- Dumont Global LP6.4%
- Toler (William Douglas)4.3%
- Rapoport (Michael)3.6%
- Next 6 largest institutions9.3%
- All other shareholders66.9%
| Holder | Shares | % of shares |
|---|---|---|
| Bogaczyk (Janusz Michal) | 454.00K | 9.54% |
| Dumont Global LP | 305.00K | 6.41% |
| Toler (William Douglas) | 204.17K | 4.29% |
| Rapoport (Michael) | 172.84K | 3.63% |
| Persofsky (Renah A) | 91.50K | 1.92% |
| Chung (Patrick) | 91.15K | 1.91% |
| Denis (Melisa) | 88.42K | 1.86% |
| Renaissance Technologies LLC | 70.36K | 1.48% |
| BlackRock Institutional Trust Company, N.A. | 50.47K | 1.06% |
| Yetter (Richard Christopher) | 50.00K | 1.05% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Extended Market Index Fund | 39.68K | 0.83% |
| Fidelity Extended Market Index Fund | 17.87K | 0.38% |
| Fidelity Total Market Index Fund | 8.30K | 0.17% |
| Fidelity Series Total Market Index Fund | 4.75K | 0.10% |
| Amplify Seymour Cannabis ETF | 2.78K | 0.06% |
Insider trades
Form 4 filings by officers, directors and large holders
Insiders made no open-market buys or sales of HYFM in the last 6 months.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Ackerman Erica | Tax withholding | 138 | $221 |
| PARKER MARK S | Tax withholding | 740 | $1.18K |
| Yetter Richard Christopher | Award | 30.00K | — |
| Chung Patrick | Award | 30.00K | — |
| Persofsky Renah | Award | 30.00K | — |
| Denis Melisa | Award | 30.00K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 437.94K
- Days to cover
- 20.27
- % of shares outstanding
- 9.20%
- Average daily volume
- 21.60K
- Change since last report
- +0.0%
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