HYFM · Hydrofarm Holdings Group, Inc. · Holdings

$0.82 +0.09 (+12.08%) At close · Nov 6 Q2 2025 earnings call transcript

Market Cap

$3.51M

4.82M

Volume · Nov 6 184.32K Avg daily vol (3M) 363.29K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of HYFM: 13F, 13D and 13G, insiders and funds →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 24

Total Value: $288,665

Total Shares: 331,747

Institutional Ownership Trend

24 quarters

Holder Concentration

Across 23 13F filers

Top Holder

22.1%

of institutional value

Top 5

68.7%

of institutional value

Top 10

92.0%

of institutional value

HHI

1,196

Broadly held

Who Holds HYFM

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 23 filers, like-for-like change -2.2%; actively managed books +15.9%; index-like books -15.5%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	57.2%	8	+2.3%	2	0
Adviser	0.1%	1	0.0%	0	0
Bank	6.4%	3	+19.8%	0	0
Broker-dealer	0.1%	1	0.0%	0	0
Non-US	0.1%	1	-13.2%	0	0
Holding company	16.1%	3	+0.6%	0	0
Unknown	20.0%	6	-18.8%	2	2

Style	Share	Filers	Change	New	Exited
Index-like	49.7%	6	-15.5%	0	0
Systematic-like	29.8%	3	+12.3%	1	1
Concentrated	13.3%	6	-11.1%	2	0
Diversified active	7.2%	8	+280.4%	1	1
Not measured	0.0%	0	—	0	0
Unknown	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	35.9%	11	-13.6%	1	1
Medium turnover	1.4%	2	+280.6%	0	0
High turnover	44.1%	7	+5.7%	3	1
Unknown	18.6%	3	0.0%	0	0
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	23.2%	4	+4.1%	1	1
Medium horizon	20.6%	3	-32.0%	0	0
Long horizon	56.1%	15	+13.2%	3	1
Unknown	0.1%	1	0.0%	0	0
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	4.7%	2	-67.4%	0	0
$1B to $10B	10.6%	6	+93.0%	2	2
$10B to $100B	22.3%	2	-2.1%	0	0
$100B or more	62.5%	13	+4.8%	2	0
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Individuals and high net worth	4.0%	3	+511.3%	1	0
Pooled investment vehicles	30.1%	3	+30.2%	1	0
Registered funds and BDCs	23.1%	2	-28.3%	0	0
Unknown	42.8%	15	-7.5%	2	2

Private funds	Share	Filers	Change	New	Exited
Hedge funds	29.7%	2	+30.7%	1	0
No private funds	27.5%	6	-17.2%	1	0
Other private funds	0.0%	0	—	0	0
Private equity funds	0.0%	0	—	0	0
Real estate funds	0.0%	0	—	0	0
Unknown	42.8%	15	-7.5%	2	2

Location	Share	Filers	Change	New	Exited
United States	98.6%	21	+0.4%	4	1
Outside the US	1.4%	2	-66.0%	0	1

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Conviction and Crowding

23 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

0.000% of filers hold it in their top 10

Mar 31, 2026: 0

Holders above 5%

median weight 0.000%

Mar 31, 2026: 0

Crowding

2.94%

of shares outstanding, 11th percentile

Mar 31, 2026: 2.78%

Private-fund advisers

1.98%

of shares outstanding

Institutional ownership

6.67%

8.45% of the estimated free float

Top 10 holders

92.0%

of 13F shares, Herfindahl 0.120

Active holders

+15.9%

like-for-like share change of active filers

5% stakes on record

1 13D, 2 13G (0 institutional, 2 passive, 0 exempt)

How long holders have held it value-weighted 11.3 quarters

Under 1 year 37.5% 1 to 3 years 16.0% 3 years or more 46.5% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost

$67.63

estimated per share

Mar 31, 2026: $79.87

Quarter-end price

$0.85

implied by 13F values

Estimated gain or loss

-98.7%

price against the estimated cost

Estimated at a loss

100.0%

of costed 13F value

Estimated cost covers 51.7% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shareholder Targets

13F filers that own its peers but not HYFM, quarter ended Jun 30, 2026

HYFM has no holder-overlap peers, so these filers hold the largest Industrials stocks: SPCX, CAT, GE, GEV, RTX, UNP, ETN, BA, DE, PH, VRT, HWM, PWR, TT, LMT, CMI, GD, JCI, WM, TDG. 6,176 filers in all.

#	Filer	In peers	Of book	Largest peers
1	FMR LLC Holding company, Diversified active	$144,746,930,054 20 held	6.29%	SPCX, GEV, GE
2	Alphabet Inc. Unknown, Concentrated	$94,176,237,970 1 held	95.1%	SPCX
3	Valor Management LLC Adviser, Concentrated	$86,013,406,595 1 held	99.8%	SPCX
4	VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active	$83,375,688,063 20 held	3.76%	CAT, GE, VRT
5	JPMORGAN CHASE & CO Bank, Diversified active	$74,141,867,585 20 held	4.30%	CAT, GEV, ETN
6	BANK OF AMERICA CORP /DE/ Bank, Diversified active	$50,842,182,391 20 held	3.28%	CAT, ETN, RTX
7	Capital World Investors Adviser, Diversified active	$49,191,955,588 15 held	5.83%	UNP, DE, BA
8	VY Capital Management Co. Ltd. Exempt adviser, Concentrated	$46,441,712,890 1 held	98.9%	SPCX
9	Capital Research Global Investors Adviser, Diversified active	$42,021,126,393 13 held	5.87%	GE, RTX, UNP
10	PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser, Diversified active	$40,466,618,460 20 held	4.06%	GE, CAT, DE

Fund Ownership of HYFM by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 1.91% of shares outstanding.

Fund type	Of shares outstanding	Change	Shares	Funds
Index funds	1.09%	+0.25 pp	52,575	4
Index ETFs	0.82%	0.00 pp	39,683	1
Active ETFs	0.06%	-0.01 pp	2,781	1
Active funds	0.00%	0.00 pp	46	1
Unclassified	0.00%	0.00 pp	0	0
All registered funds	1.97%	+0.25 pp	95,085	7

How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 7 Adviser 1 Bank 5 Broker-dealer 1 Non-US 1 Holding company 3 Unknown 6

Showing 24 of 24

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

RENAISSANCE TECHNOLOGIES LLC

$59,808

20.72%

70,363

GEODE CAPITAL MANAGEMENT, LLC

$46,199

16.00%

48,125

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	7,660	$7,353	15.9%	Defined
Held directly	40,465	$38,846	84.1%	Defined

BlackRock, Inc.

$42,895

14.86%

50,465

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BlackRock Institutional Trust Company, N.A.	50,465	$42,895	100.0%	Sole

VANGUARD CAPITAL MANAGEMENT LLC

$33,730

11.68%

39,683

CITADEL ADVISORS LLC

$20,387

7.06%

23,985

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	23,985	$20,387	100.0%	Defined

VANGUARD FIDUCIARY TRUST CO

$15,369

5.32%

18,082

STATE STREET CORP

$13,612

4.72%

16,015

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS TRUST COMPANY	16,015	$13,612	100.0%	Defined

Prentice Capital Management, LP

$12,525

4.34%

14,736

Virtu Financial LLC

$12,491

4.33%

14,696

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	14,696	$12,491	100.0%	Defined

Compass Ion Advisors, LLC

$10,322

3.58%

10,753

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$9,021

3.13%

10,613

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
G1 EXECUTION SERVICES, LLC	10,613	$9,021	100.0%	Other

Tower Research Capital LLC (TRC)

$4,623

1.60%

5,439

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	5,439	$4,623	100.0%	Defined

UBS Group AG

$3,680

1.27%

4,331

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	292	$248	6.7%	Defined
UBS AG	2,128	$1,808	49.1%	Defined
UBS Switzerland AG	13	$11	0.3%	Defined
UBS Securities LLC	1,898	$1,613	43.8%	Defined

CITIGROUP INC

$1,445

0.50%

1,506

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	1,506	$1,445	100.0%	Defined

Vanguard Global Advisers, LLC

$1,078

0.37%

1,269

OSAIC HOLDINGS, INC.

$427

0.15%

503

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	503	$427	100.0%	Defined

North Star Investment Management Corp.

$355

0.12%

370

GROUP ONE TRADING LLC

$287

0.10%

338

BNP PARIBAS ARBITRAGE, SA

$168

0.06%

198

Hurley Capital, LLC

$98

0.03%

103

MORGAN STANLEY

$75

0.03%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	9	$7	9.3%	Defined
MORGAN STANLEY SMITH BARNEY LLC	81	$68	90.7%	Defined

JONES FINANCIAL COMPANIES LLLP

$63

0.02%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	75	$63	100.0%	Sole

ROYAL BANK OF CANADA

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Dominion Securities Inc.	8	$6	100.0%	Defined

BARCLAYS PLC

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS CAPITAL INC.	1	$1	100.0%	Defined

Key facts CIK 1695295 CUSIP 44888K407 13F (30d) 14 filings 7 filers Visit website Investor relations