HYFM — HYDROFARM HOLDINGS GROUP, INC.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2020-12-10.
Performance
Technicals
Others in Industrials
Measured signals that fired on HYFM
| date | signal | measured base rate |
|---|---|---|
| 2026-04-15 | Short volume far above its own normal short | -0.76% over 21 days · t = -2.79 · n = 5,897 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-08 | PARKER MARK S President | Shares withheld for tax | 740 | 1.60 | 1.2K |
| 2026-08-08 | Ackerman Erica CAO and Corporate Controller | Shares withheld for tax | 138 | 1.60 | 221 |
| 2026-06-23 | Chung Patrick Director | Grant or award | 30.0K | 0.00 | 0 |
| 2026-06-23 | Persofsky Renah Director | Grant or award | 30.0K | 0.00 | 0 |
| 2026-06-23 | Denis Melisa Director | Grant or award | 30.0K | 0.00 | 0 |
| 2026-06-23 | Yetter Richard Christopher Director | Grant or award | 30.0K | 0.00 | 0 |
| 2026-01-06 | Toler William Douglas Chief Executive Officer | Shares withheld for tax | 5.2K | 1.51 | 7.8K |
| 2026-01-06 | PARKER MARK S President | Shares withheld for tax | 1.7K | 1.51 | 2.5K |
| 2026-01-06 | O'Brien Kevin Patrick Chief Financial Officer | Open-market sale | 1.1K | 1.51 | 1.7K |
| 2026-01-06 | Ackerman Erica CAO and Corporate Controller | Shares withheld for tax | 687 | 1.51 | 1.0K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | 73.6K | 72.2K |
| GEODE CAPITAL MANAGEMENT, LLC | 63.8K | 62.6K |
| BlackRock, Inc. | 51.5K | 50.5K |
| VANGUARD CAPITAL MANAGEMENT LLC | 40.5K | 39.7K |
| VANGUARD FIDUCIARY TRUST CO | 18.4K | 18.1K |
| STATE STREET CORP | 16.3K | 16.0K |
| XTX Topco Ltd | 12.0K | 11.8K |
| Tower Research Capital LLC (TRC) | 3.0K | 2.9K |
| JNBA Financial Advisors | 2.0K | 2.0K |
| Vanguard Global Advisers, LLC | 1.3K | 1.3K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 10-Q | 2026-08-14 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-08-14 | 2026-08-14 | on EDGAR ↗ |
| 4 | 2026-08-11 | 2026-08-08 | on EDGAR ↗ |
| 4 | 2026-08-11 | 2026-08-08 | on EDGAR ↗ |
| 8-K | 2026-08-06 | 2026-07-31 | on EDGAR ↗ |
| 8-K | 2026-07-09 | 2026-07-02 | on EDGAR ↗ |
| 8-K | 2026-06-26 | 2026-06-23 | on EDGAR ↗ |
| 4 | 2026-06-25 | 2026-06-23 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Hydrofarm Holdings GAAP EPS of -$2.23, revenue of $23.21M · 2026-08-17
- Hydrofarm Holdings Group, Inc. (HYFM) filed form 8-K · 2026-08-14 · SEC EDGAR
- HYDROFARM HOLDINGS GROUP, INC. (HYFM) filed form 10-Q · 2026-08-14 · SEC EDGAR
- HYDROFARM HOLDINGS GROUP, INC. (HYFM) filed form 8-K · 2026-08-14 · SEC EDGAR
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