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
-50
Closed -$290 – 14946
2024
Q4 		$290 Buy
+50
New +$327 ﹤0.01% 14353
2024
Q1 		– Sell
-290
Closed -$2.66K – 14949
2023
Q4 		$2.66K Sell
290
-440
-60% -$4.24K ﹤0.01% 13672
2023
Q3 		$8.91K Buy
730
+120
+20% +$1.34K ﹤0.01% 13156
2023
Q2 		$4.77K Sell
610
-340
-36% -$4.06K ﹤0.01% 13569
2023
Q1 		$16.4K Sell
950
-2,400
-72% -$42.5K ﹤0.01% 13203
2022
Q4 		$51.9K Sell
3,350
-2,020
-38% -$46.2K ﹤0.01% 12087
2022
Q3 		$104K Sell
5,370
-460
-8% -$14.8K ﹤0.01% 11053
2022
Q2 		$203K Sell
5,830
-5,780
-50% -$470K ﹤0.01% 10660
2022
Q1 		$1.76M Sell
11,610
-22,030
-65% -$4.11M ﹤0.01% 6376
2021
Q4 		$9.52M Buy
33,640
+4,210
+14% +$1.43M ﹤0.01% 3158
2021
Q3 		$11.1M Buy
29,430
+21,400
+267% +$10.4M ﹤0.01% 2897
2021
Q2 		$4.75M Buy
8,030
+3,660
+84% +$2.15M ﹤0.01% 4559
2021
Q1 		$2.64M Buy
+4,370
New +$3.07M ﹤0.01% 5748

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.