Ken Griffin
HYFM icon

Ken Griffin’s Hydrofarm Holdings HYFM Stock Holding History

Ken Griffin’s Portfolio HYFM Stock Details HYFM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q1 		– Sell
-1,050
Closed -$6.09K – 14945
2024
Q4 		$6.09K Buy
+1,050
New +$6.86K ﹤0.01% 13820
2024
Q1 		– Sell
-2,770
Closed -$25.4K – 14948
2023
Q4 		$25.4K Sell
2,770
-160
-5% -$1.54K ﹤0.01% 12408
2023
Q3 		$35.7K Sell
2,930
-140
-5% -$1.56K ﹤0.01% 12137
2023
Q2 		$24K Sell
3,070
-820
-21% -$9.8K ﹤0.01% 12571
2023
Q1 		$67.3K Sell
3,890
-520
-12% -$9.2K ﹤0.01% 11791
2022
Q4 		$68.4K Sell
4,410
-2,230
-34% -$51K ﹤0.01% 11735
2022
Q3 		$129K Sell
6,640
-1,270
-16% -$40.8K ﹤0.01% 10860
2022
Q2 		$275K Buy
7,910
+1,150
+17% +$93.6K ﹤0.01% 9985
2022
Q1 		$1.02M Sell
6,760
-10,160
-60% -$1.9M ﹤0.01% 7636
2021
Q4 		$4.79M Sell
16,920
-7,330
-30% -$2.49M ﹤0.01% 4361
2021
Q3 		$9.18M Buy
24,250
+6,200
+34% +$3.01M ﹤0.01% 3217
2021
Q2 		$10.7M Buy
18,050
+13,000
+257% +$7.65M ﹤0.01% 2975
2021
Q1 		$3.05M Buy
+5,050
New +$3.54M ﹤0.01% 5412

Other funds holding HYFM

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
PCM
Prentice Capital Management Greenwich, Connecticut $45.7M AUM 2.65% 1-Year Est. Return
DS
DRW Securities Chicago, Illinois $7.21B AUM 20.54% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
TRCT
Tower Research Capital (TRC) New York $4.08B AUM 58.77% 1-Year Est. Return

Ken Griffin's HYFM Position: Q4 2025 in Review

Ken Griffin sold out of Hydrofarm Holdings (HYFM) in Q4 2025, closing a stake of 18,079 shares — an estimated $59.5K sold.

Ken Griffin first reported a position in HYFM in Q4 2020 and held it in 10 quarters. The position peaked at $16.9M in Q2 2021. 22 funds tracked by Wall St. Rank hold HYFM as of Q4 2025.

  • Ken Griffin reported no remaining Hydrofarm Holdings position as of Q4 2025 after selling out during the quarter.
  • Ken Griffin sold 18,079 Hydrofarm Holdings shares in Q4 2025, an estimated $59.5K.
  • Ken Griffin first reported a position in Hydrofarm Holdings in Q4 2020 and held it in 10 quarters.
  • Ken Griffin's Hydrofarm Holdings position peaked at $16.9M in Q2 2021.
  • 22 funds tracked by Wall St. Rank held Hydrofarm Holdings as of Q4 2025.

Based on Citadel Advisors's 13F filing for Q4 2025, filed 17 Feb 2026.