HYFM: HYDROFARM HOLDINGS GROUP, INC. insider trading, 5% holders and institutional ownership

From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.

Insider trading

1 open-market buys totaling $20K and 0 sales totaling - in the last 180 days.

Insider buys

ScoreTickerCompanyInsiderRoleTrade dateValueHolding +Cluster
38HYFMHYDROFARM HOLDINGS GROUP, INC.Parker Mark SPresident2026-10-27$20K119%

Institutional ownership (Q2 2026)

22 institutions reported holding $245K of HYDROFARM HOLDINGS GROUP, INC. on Form 13F (20 the quarter before). 4 opened a new position and 2 sold out. Shares held by institutions: +3%.

Largest holdersSharesValue
RENAISSANCE TECHNOLOGIES LLC70,363$60K
BlackRock, Inc.50,465$43K
VANGUARD CAPITAL MANAGEMENT LLC39,683$34K
GEODE CAPITAL MANAGEMENT, LLC33,658$29K
CITADEL ADVISORS LLC23,985$20K
VANGUARD FIDUCIARY TRUST CO18,082$15K
STATE STREET CORP16,015$14K
Compass Ion Advisors, LLC10,753$9K
SUSQUEHANNA INTERNATIONAL GROUP, LLP10,613$9K
Tower Research Capital LLC (TRC)5,439$5K

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