Logo
Login
$HYFM
$0.83 +$0.04 (4.56%) Close

Ownership

13F as of Q2 2026 · 4.8M shares outstanding

Who owns HYFM?

By type of holder
Institutions 6.4% Insiders 5.6% Everyone else 88.1%
Concentration Top 10 holders own 27.6%
Dumont Global LP 6.3% · Dumont Master Fund LP 6.3%
Institutional ownership
6.4%
-0.4 pts vs last qtr
Institutional holders
22
+1 vs last qtr
Net shares bought
−17.7K
by institutions in Q2 2026
New / sold out
3 / 2
positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026
  • Citadel Advisors LLC NEW +24.0K
  • Virtu Financial LLC NEW +14.7K

Sign up to see all 5.

Biggest sellers in Q2 2026
  • Prentice Capital Management, LP −30.7K
  • Geode Capital Management, LLC −28.9K

Sign up to see all 5.

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Hydrofarm Holdings Group Inc in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2019–FY2025
+124.7%
+14.44% a year
Each share's claim on the business
−55.5%
shrank without buying or selling a share
Spent on buybacks vs paid in stock
— vs $31.1M
over 7 fiscal years
Diluted shares, split-adjusted
2.0M3.4M4.7M2019: 2.1M shares'192020: 2.1M shares'202021: 4.3M shares'212022: 4.5M shares'222023: 4.6M shares'232024: 4.6M shares'242025: 4.6M shares'25
Buybacks Stock-based comp
$0$4.4M$8.9M2019 buybacks: $02019 stock comp: $208.0K'192020 buybacks: $02020 stock comp: $8.9M'202021 buybacks: $02021 stock comp: $5.0M'212022 buybacks: $02022 stock comp: $8.4M'222023 buybacks: $02023 stock comp: $5.1M'232024 buybacks: $02024 stock comp: $2.4M'242025 buybacks: $02025 stock comp: $1.2M'25

How patient are the owners?

Institutional shares by how long they've been held
5+ years56% 3–5 years28% 1–3 years0% Under 1 year16%
Quarterly turnover
19.8%
of institutional shares changed hands
Top 10 managers, median time held
5 years

Super Investors

Investment managers reporting HYFM on Form 13F
RT
Renaissance Technologies LLC
Shares
70.4K
% of company
1.46%
Change vs last qtr
−1.8K (−2.5%)
Held since
2021
GC
Geode Capital Management, LLC
Shares
33.7K
% of company
0.70%
Change vs last qtr
−28.9K (−46.2%)
Held since
≤2021

22 more super investors behind a free account

See every manager holding Hydrofarm Holdings Group Inc, how their position has changed, and how long they've held it.

Sign up free

Institutional Funds

Mutual funds and ETFs reporting HYFM on Form N-PORT; together they hold 1.8% of the company
VE
Vanguard Extended Market Index Fund
Vanguard Index Funds
Position value
$33.7K
% of company
0.82%
% of the fund
0.00%
As of
June 30, 2026
FE
Fidelity Extended Market Index Fund
Fidelity Concord Street Trust
Position value
$25K
% of company
0.57%
% of the fund
0.00%
As of
August 31, 2026

4 more funds behind a free account

See every fund holding Hydrofarm Holdings Group Inc and how much of the fund the position is.

Sign up free

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G
DG
Dumont Global LP
5%+ holder13D · 6.6%
Shares
305.0K
% of company
6.33%
Change vs last qtr
—
Held since
—
DM
Dumont Master Fund LP
5%+ holder13D · 6.6%
Shares
305.0K
% of company
6.33%
Change vs last qtr
—
Held since
—

7 more holders behind a free account

See every insider and 5%+ holder of Hydrofarm Holdings Group Inc.

Sign up free

Create Account

Sign up for free to unlock this feature.

Already have an account? Sign in

Premium Feature

This feature requires a premium subscription to unlock unlimited historical data and advanced analysis tools.

Premium includes:

  • Unlimited historical financial data
  • Advanced analytics and insights
  • Priority support
View Pricing Plans