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HYFM HYDROFARM HLDGS GROUP INC

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COM (common), issuer CIK 1695295

18 managers (20 13F filers) reported a position in HYFM shares at 2026-03-31, 279,360 shares in all. 2 filers opened a position and 5 filers sold out during the quarter.

Managers
18
13F filers
20
New
2
Added
2
Reduced
6
Sold out
5
Shares held by filers
279,360

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
RENAISSANCE TECHNOLOGIES LLC72,163$73.6K<0.01%-30013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC62,586$63.8K<0.01%+14,98913F-HRTimelineGroup
VANGUARD GROUP INCgroup of 3 filers holding59,034$60.2KnewTimeline
BlackRock, Inc.in group BlackRock, Inc.50,465$51.5K<0.01%013F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP16,015$16.3K<0.01%013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd11,784$12K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,911$2.97K<0.01%-65213F-HRTimelineGroup
JNBA Financial Advisors2,000$2.04K<0.01%013F-HRTimeline
UBS Group AGin group UBS Group AG962$981<0.01%-3,96313F-HRTimelineGroup
North Star Investment Management Corp.370$377<0.01%013F-HRTimeline
GROUP ONE TRADING LLC338$345<0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS228$233<0.01%+2313F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.221$224<0.01%-3013F-HRTimelineGroup
Hurley Capital, LLC103$105<0.01%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY90$92<0.01%-17113F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP75$76<0.01%-213F-HRTimelineGroup
Advisory Services Network, LLC7$7<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA8$00%013F-HRTimelineGroupValue filed as zero, left out of ratios.