CSS
ALDX icon

Cubist Systematic Strategies’s Aldeyra Therapeutics ALDX Stock Holding History

Cubist Systematic Strategies’s Portfolio ALDX Stock Details ALDX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		$529K Buy
101,375
+71,408
+238% +$372K ﹤0.01% 2254
2025
Q2 		$115K Buy
+29,967
New +$77.5K ﹤0.01% 2697
2024
Q1 		– Sell
-12,138
Closed -$42.6K – 3658
2023
Q4 		$42.6K Sell
12,138
-2,795
-19% -$8.63K ﹤0.01% 3285
2023
Q3 		$99.8K Buy
+14,933
New +$111K ﹤0.01% 2941
2023
Q2 		– Sell
-5,757
Closed -$57.2K – 3434
2023
Q1 		$57.2K Buy
+5,757
New +$40.7K ﹤0.01% 3547
2022
Q4 		– Sell
-116,285
Closed -$621K – 4208
2022
Q3 		$621K Buy
116,285
+23,988
+26% +$144K ﹤0.01% 2998
2022
Q2 		$368K Buy
92,297
+78,312
+560% +$269K ﹤0.01% 3292
2022
Q1 		$62K Sell
13,985
-70,357
-83% -$280K ﹤0.01% 3338
2021
Q4 		$337K Buy
84,342
+41,090
+95% +$313K ﹤0.01% 2719
2021
Q3 		$380K Sell
43,252
-77,597
-64% -$712K ﹤0.01% 2211
2021
Q2 		$1.37M Buy
120,849
+37,732
+45% +$454K 0.02% 1354
2021
Q1 		$987K Buy
83,117
+58,860
+243% +$678K 0.01% 1549
2020
Q4 		$166K Buy
24,257
+23,102
+2,000% +$162K ﹤0.01% 2310
2020
Q3 		$9K Buy
+1,155
New +$7.46K ﹤0.01% 2436
2020
Q1 		– Sell
-15,150
Closed -$88K – 2139
2019
Q4 		$88K Buy
+15,150
New +$87.5K ﹤0.01% 2211
2019
Q3 		– Sell
-5,072
Closed -$30K – 2192
2019
Q2 		$30K Buy
+5,072
New +$38.2K ﹤0.01% 2364

Other funds holding ALDX

KCM
Knoll Capital Management Miami, Florida $180M AUM 66.11% 1-Year Est. Return
PA
Perceptive Advisors New York $5.12B AUM 314.02% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
AAP
Ardsley Advisory Partners Stamford, Connecticut $960M AUM 207.76% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
KCM
Kingdon Capital Management New York $911M AUM 51.11% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
KCM
Kennedy Capital Management St Louis, Missouri $4.72B AUM 36.69% 1-Year Est. Return

Cubist Systematic Strategies's ALDX Position: Q3 2025 in Review

Cubist Systematic Strategies increased its Aldeyra Therapeutics (ALDX) stake by 238% in Q3 2025, buying an estimated $372K and bringing the position to 101,375 shares worth $529K. The position accounts for ﹤0.01% of the portfolio, ranked #2254.

Cubist Systematic Strategies first reported a position in ALDX in Q2 2019 and has held it in 16 quarters since. The position peaked at $1.37M in Q2 2021. 130 funds tracked by Wall St. Rank hold ALDX as of Q3 2025.

  • Cubist Systematic Strategies held 101,375 shares of Aldeyra Therapeutics worth $529K as of Q3 2025.
  • Cubist Systematic Strategies bought 71,408 Aldeyra Therapeutics shares in Q3 2025, an estimated $372K.
  • Aldeyra Therapeutics made up ﹤0.01% of Cubist Systematic Strategies's portfolio in Q3 2025, its #2254 holding.
  • Cubist Systematic Strategies first reported a position in Aldeyra Therapeutics in Q2 2019 and has held it in 16 quarters since.
  • Cubist Systematic Strategies's Aldeyra Therapeutics position peaked at $1.37M in Q2 2021.
  • 130 funds tracked by Wall St. Rank held Aldeyra Therapeutics as of Q3 2025.

Based on Cubist Systematic Strategies's 13F filing for Q3 2025, filed 14 Nov 2025.