Hydrofarm Holdings Group, Inc. (HYFM) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

4,594,643Shares Outstanding

107,441Shares held by institutions

$151,492Value of institutional holdings

25.81%Institutional ownership %

-32.34%Shares Changed QoQ

78No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Recent 13F filings as of December 2025 show that 22 institutional investors hold a position in Hydrofarm Holdings Group, Inc. (NASDAQ:HYFM).

Institutional ownership in Hydrofarm Holdings edged down to 9.2% in December 2025, compared to 14.3% in September 2025.
In percentage terms, this reflects as a holdings change of -11.39% quarter on quarter, and a decrease of 54.17% year over year.
Among the 22 institutional holders of Hydrofarm Holdings, 5 added to their stakes while 9 trimmed their positions and 8 held steady.
The aggregate institutional position in Hydrofarm Holdings now stands at 429.60K shares as of December 2025, after investors decreased their holdings (down by 55.24K shares quarter on quarter which is down 292.15K shares year over year).
VANGUARD GROUP INC's holding of 123.59K shares as of December 31, 2025 makes it the primary institutional investor in Hydrofarm Holdings, owning 2.65% of the stock.
Among the most significant buyers of Hydrofarm Holdings during December 2025 were 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).
Leading sellers of Hydrofarm Holdings stock in December 2025 included VANGUARD GROUP INC (64.03K), UBS Group AG (38.23K), Prentice Capital Management, LP (2.98K), MORGAN STANLEY (1.79K), RENAISSANCE TECHNOLOGIES LLC (1.30K).
The top 10 institutional holders of Hydrofarm Holdings for the quarter ending December 2025 included VANGUARD GROUP INC (123.59K), RENAISSANCE TECHNOLOGIES LLC (72.46K), BlackRock, Inc. (50.47K), GEODE CAPITAL MANAGEMENT, LLC (47.60K), 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).

22 Institutional Holders

107,441 Total Shares Held

Rows:

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Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	123,586	-64,030	-34.13%	$186,615.00
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	72,463	-1,300	-1.76%	$109,419.00
BlackRock, Inc.	31 Dec, 2025	50,465	0	0.00%	$76,202.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	47,597	0	0.00%	$71,886.00
Prentice Capital Management, LP	31 Dec, 2025	45,469	-2,980	-6.15%	$68,658.00
DRW Securities, LLC	31 Dec, 2025	38,840	28,093	261.40%	$58,648.00
JANE STREET GROUP, LLC	31 Dec, 2025	22,716	22,716	0.00%	$34,301.00
STATE STREET CORP	31 Dec, 2025	16,015	0	0.00%	$24,183.00
UBS Group AG	31 Dec, 2025	4,925	-38,235	-88.59%	$7,437.00
Tower Research Capital LLC (TRC)	31 Dec, 2025	3,563	3,330	1,429.18%	$5,380.00
JNBA Financial Advisors	31 Dec, 2025	2,000	0	0.00%	$3,020.00
North Star Investment Management Corp.	31 Dec, 2025	370	0	0.00%	$559.00
GROUP ONE TRADING LLC	31 Dec, 2025	338	-10	-2.87%	$510.00
WELLS FARGO & COMPANY/MN	31 Dec, 2025	300	-1,122	-78.90%	$453.00
MORGAN STANLEY	31 Dec, 2025	261	-1,786	-87.25%	$394.00
OSAIC HOLDINGS, INC.	31 Dec, 2025	251	181	258.57%	$378.00
BNP PARIBAS FINANCIAL MARKETS	31 Dec, 2025	205	-6	-2.84%	$310.00
Hurley Capital, LLC	31 Dec, 2025	103	0	0.00%	$156.00
JONES FINANCIAL COMPANIES LLLP	31 Dec, 2025	77	0	0.00%	$116.00
BANK OF AMERICA CORP /DE/	31 Dec, 2025	41	-100	-70.92%	$62.00

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