Hydrofarm Holdings Group, Inc. (HYFM) Institutional Ownership

Ownership Summary

Hydrofarm Holdings Group, Inc. (NASDAQ:HYFM) has 22 institutional investors that have filed 13F reports for the period ending December 2025.

• Their combined ownership stood at 9.2% of outstanding shares in December 2025, down from 14.3% in September 2025.
• They decreased total shares held in Hydrofarm Holdings by -11.42% from the prior quarter, while the number of investors in HYFM decreased 54.17% year over year.
• Of these 22 holders, 5 added to their stakes in Hydrofarm Holdings, 9 trimmed positions, and 8 made no changes.
• Altogether, these fund groups held 429.6K shares in HYFM by December 2025, down by 55.38K shares quarter on quarter, and down 6.83Mn shares year over year.
• As of December 31, 2025, VANGUARD GROUP INC held the largest stake in Hydrofarm Holdings with 123.59K shares, accounting for 2.65% of total shares outstanding.
• The most significant purchases of HYFM for the quarter ending December 2025 came from DRW Securities, LLC (28.09K), JANE STREET GROUP, LLC (22.72K), Tower Research Capital LLC (TRC) (3.33K), OSAIC HOLDINGS, INC. (181), Royal Bank Of Canada (8).
• Top sellers of HYFM stock for the quarter ending December 2025 included VANGUARD GROUP INC (64.03K), UBS Group AG (38.24K), Prentice Capital Management, LP (2.98K), Morgan Stanley (1.79K), RENAISSANCE TECHNOLOGIES LLC (1.3K).
• Per Business Quant, the top 10 investors in HYFM for the quarter ending December 2025 include VANGUARD GROUP INC (123.59K), RENAISSANCE TECHNOLOGIES LLC (72.46K), BlackRock, Inc. (50.46K), GEODE CAPITAL MANAGEMENT, LLC (47.6K), Prentice Capital Management, LP (45.47K), DRW Securities, LLC (38.84K), JANE STREET GROUP, LLC (22.72K), State Street Corp (16.02K), UBS Group AG (4.92K), Tower Research Capital LLC (TRC) (3.56K).