HYFM Institutional Ownership & Shareholders
HYDROFARM HOLDINGS GROUP INC (HYFM) is currently held by 22 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $270,769 based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Renaissance Technologies LLC is currently the largest disclosed institutional shareholder of HYFM tracked by InsiderSet, reporting ownership valued at approximately $59,788 in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $48,958.575, representing an estimated loss of -18.11% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 92% of the total disclosed HYFM value among the investors covered in this analysis. Major shareholders include Renaissance Technologies LLC, Blackrock, Inc., Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in HYDROFARM HOLDINGS GROUP INC (HYFM).
This page ranks the largest institutional HYFM shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
22
Total Reported Value
$270,769
Largest Holder
Renaissance Technologies LLC
Largest Position
$59,788
Insider Transactions (90d)
10
Latest Filing Quarter
Q2 2026
New Institutional Positions
30
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Renaissance Technologies LLC | Jim Simons | 0.00% | 70,363 | $59,788 | $48,959 | -$10,829 | -18.11% |
| Blackrock, Inc. | 0.00% | 50,465 | $42,880 | $35,114 | -$7,766 | -18.11% | |
| Vanguard Capital Management Llc | 0.00% | 39,683 | $33,731 | $27,611 | -$6,120 | -18.14% | |
| Geode Capital Management, Llc | 0.00% | 33,658 | $28,608 | $23,419 | -$5,189 | -18.14% | |
| Citadel Advisors Llc | 0.00% | 23,985 | $20,380 | $16,689 | -$3,691 | -18.11% | |
| Vanguard Fiduciary Trust Co | 0.00% | 18,082 | $15,370 | $12,581 | -$2,789 | -18.14% | |
| State Street Corp | 0.00% | 16,015 | $13,608 | $11,143 | -$2,465 | -18.11% | |
| Prentice Capital Management, Lp | 0.02% | 14,736 | $12,521 | $10,253 | -$2,268 | -18.11% | |
| Virtu Financial Llc | 0.00% | 14,696 | $12,000 | $10,225 | -$1,775 | -14.79% | |
| Compass Ion Advisors, Llc | 0.00% | 10,753 | $10,323 | $7,482 | -$2,841 | -27.52% | |
| Susquehanna International Group, Llp | 0.00% | 10,613 | $9,018 | $7,385 | -$1,633 | -18.11% | |
| Tower Research Capital Llc (Trc) | 0.00% | 5,439 | $4,622 | $3,784 | -$838 | -18.12% | |
| Ubs Group Ag | 0.00% | 4,331 | $3,681 | $3,014 | -$667 | -18.13% | |
| Jnba Financial Advisors | 0.00% | 2,000 | $1,700 | $1,392 | -$308 | -18.14% | |
| Vanguard Global Advisers, Llc | 0.00% | 1,269 | $1,079 | $883 | -$196 | -18.17% | |
| Osaic Holdings, Inc. | 0.00% | 503 | $426 | $350 | -$76 | -17.84% | |
| North Star Investment Management Corp. | 0.00% | 370 | $355 | $257 | -$98 | -27.48% | |
| Group One Trading Llc | 0.00% | 338 | $287 | $235 | -$52 | -18.06% | |
| Bnp Paribas Financial Markets | 0.00% | 198 | $168 | $138 | -$30 | -18.00% | |
| Hurley Capital, Llc | 0.00% | 103 | $88 | $72 | -$16 | -18.56% | |
| Morgan Stanley | 0.00% | 90 | $77 | $63 | -$14 | -18.67% | |
| Jones Financial Companies Lllp | 0.00% | 75 | $59 | $52 | -$7 | -11.55% |
Frequently asked questions about HYFM
Who are the largest institutional holders of HYFM?
The largest institutional holders of HYFM reported in the latest SEC Form 13F filings include Renaissance Technologies LLC, Blackrock, Inc., Vanguard Capital Management Llc, Geode Capital Management, Llc, and Citadel Advisors Llc. InsiderSet ranks institutional holders by their latest reported HYFM position.
What is HYFM institutional ownership?
This page tracks HYFM positions reported by institutional investment managers through SEC Form 13F. HYDROFARM HOLDINGS GROUP INC (HYFM) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own HYFM?
InsiderSet currently tracks 22 institutional managers reporting HYFM holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of HYFM shareholders.
How much HYFM stock do institutions own?
Institutional investment managers disclosed approximately $270,769 in HYFM holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was HYFM institutional ownership last updated?
The latest HYFM institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional HYFM holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its HYFM position after the reporting date.
Are institutions buying or selling HYFM?
Institutional buying and selling can be analyzed by comparing HYFM positions across consecutive 13F reporting periods. InsiderSet's HYFM Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View HYFM ownership changes.
How has HYFM institutional ownership changed over time?
InsiderSet tracks HYFM institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.