HYDROFARM HOLDINGS GROUP, INC. - Common Stock, $0.0001 par value per share (HYFM)

Q: What does CUSIP 44888K407 represent in this 13F holders report?

CUSIP 44888K407 is the security identifier for HYFM - HYDROFARM HOLDINGS GROUP, INC. - Common Stock, $0.0001 par value per share used to aggregate holder disclosures.

Q: How many institutions held HYFM - HYDROFARM HOLDINGS GROUP, INC. - Common Stock, $0.0001 par value per share in Q2 2025?

24 institutional investors reported HYFM - HYDROFARM HOLDINGS GROUP, INC. - Common Stock, $0.0001 par value per share for Q2 2025. Use the holders table for investor-level position and value details.

CUSIP: 44888K407

Q2 2025 13F Holders as of 30 Jun 2025

Security type / class: Equity / Common Stock, $0.0001 par value per share
Total 13F shares: 597,144
Total 13F value: $2,233,355
Share change: +32,564
SEC-reported price per share: $3.74
Number of holders: 24
Value change: +$122,054
Number of buys: 5
Number of sells: 6
Shares outstanding: 13,509,657

Security key

44888K407

Report period

Q2 2025

Institutions

Top holders

HYFM full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2025 HYDROFARM HOLDINGS GROUP, INC. SEC filings HYDROFARM HOLDINGS GROUP, INC. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 44888K407

Newer quarter: Q3 2025

Recent filing periods:

Q3 2026 Q2 2026 Q1 2026 Q4 2025 Q3 2025

Ownership snapshot

Top reported holders of HYFM - HYDROFARM HOLDINGS GROUP, INC. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Bogaczyk Janusz Michal

Disclosed value leader

Michael Rapp

Comparable rows

3/15

Latest evidence

09 Jun 2025

13D/G 3/4/5 13F Lead comparable stake: 9.8% 12 rows are not safely comparable across share classes. 13D/G row: Bogaczyk Janusz Michal Showing 1-6 of 15 holder rows.

Quick read

Bogaczyk Janusz Michal leads the comparable SEC ownership view at 9.8%.

3 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Bogaczyk Janusz Michal's linked filing trail.

Comparable ownership Top 3

Bogaczyk Janusz Michal 9.8%

Dumont Master Fund LP 7.1%

Michael Rapp 3.7%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Bogaczyk Janusz Michal	13D/G 13D/G	9.8% Reported 13D/G · 21 Mar 2025	$858,060 454,000 shares	+$76,602	21 Mar 2025
Dumont Master Fund LP	13D/G Dumont Global LP 13D/G	7.1% Reported 13D/G · 12 Feb 2025	$618,030 327,000 shares	$0	12 Feb 2025
Michael Rapp	13D/G Michael Rapoport 13D/G	3.7% Reported 13D/G · 31 Dec 2024	$3,266,665 1,728,394 shares	$0	31 Dec 2024
Susan Peters	3/4/5 Director 3/4/5	— mixed-class rows	$483,598 374,824 shares mixed-class rows	—	09 Jun 2025
VANGUARD GROUP INC	13F Company 13F	— denominator unverified	$354,594 187,616 shares	—	31 Mar 2025
Terence Fitch	3/4/5 President 3/4/5	— denominator unverified	$273,120 284,500 shares	—	04 Jun 2022

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q2 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

597,144

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q2 2025 vs Q2 2026 Across Filers

Q2 2026 holders

Q2 2025 holders

Holder diff

Investor	Q2 2026 Shares	Q2 2025 Shares	Share Diff	Share Chg %	Q2 2026 value	Q2 2025 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend