Dimensional Fund Advisors
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Dimensional Fund Advisors’s Aldeyra Therapeutics ALDX Stock Holding History

Dimensional Fund Advisors’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
2026
Q1 		$1.05M Buy
624,170
+11,912
+2% +$52.2K ﹤0.01% 2833
2025
Q4 		$3.17M Sell
612,258
-36,113
-6% -$186K ﹤0.01% 2638
2025
Q3 		$3.38M Sell
648,371
-70,342
-10% -$367K ﹤0.01% 2639
2025
Q2 		$2.75M Buy
718,713
+48,863
+7% +$126K ﹤0.01% 2677
2025
Q1 		$3.85M Sell
669,850
-65,913
-9% -$390K ﹤0.01% 2571
2024
Q4 		$3.67M Buy
735,763
+131,722
+22% +$676K ﹤0.01% 2626
2024
Q3 		$3.26M Sell
604,041
-68,016
-10% -$324K ﹤0.01% 2661
2024
Q2 		$2.22M Sell
672,057
-210,153
-24% -$823K ﹤0.01% 2736
2024
Q1 		$2.88M Sell
882,210
-156,442
-15% -$515K ﹤0.01% 2701
2023
Q4 		$3.65M Sell
1,038,652
-166,372
-14% -$513K ﹤0.01% 2645
2023
Q3 		$8.05M Buy
1,205,024
+79,379
+7% +$589K ﹤0.01% 2365
2023
Q2 		$9.44M Buy
1,125,645
+2,737
+0.2% +$27K ﹤0.01% 2287
2023
Q1 		$11.1M Buy
1,122,908
+232,676
+26% +$1.64M ﹤0.01% 2181
2022
Q4 		$6.2K Buy
890,232
+210,219
+31% +$1.2M ﹤0.01% 2382
2022
Q3 		$3.63M Buy
680,013
+597,093
+720% +$3.58M ﹤0.01% 2532
2022
Q2 		$331K Sell
82,920
-84,699
-51% -$291K ﹤0.01% 3161
2022
Q1 		$745K Sell
167,619
-91,999
-35% -$366K ﹤0.01% 3059
2021
Q4 		$1.04M Sell
259,618
-11,766
-4% -$89.7K ﹤0.01% 3025
2021
Q3 		$2.38M Hold
271,384
– – ﹤0.01% 2809
2021
Q2 		$3.08M Sell
271,384
-3,451
-1% -$41.5K ﹤0.01% 2740
2021
Q1 		$3.27M Buy
274,835
+6,803
+3% +$78.3K ﹤0.01% 2709
2020
Q4 		$1.84M Buy
268,032
+40,190
+18% +$282K ﹤0.01% 2831
2020
Q3 		$1.69M Buy
227,842
+18,265
+9% +$118K ﹤0.01% 2790
2020
Q2 		$874K Buy
209,577
+14,650
+8% +$53.5K ﹤0.01% 2975
2020
Q1 		$481K Sell
194,927
-45,196
-19% -$203K ﹤0.01% 3059
2019
Q4 		$1.4M Buy
240,123
+41,739
+21% +$241K ﹤0.01% 2944
2019
Q3 		$1.04M Buy
198,384
+27,847
+16% +$150K ﹤0.01% 3008
2019
Q2 		$1.02M Buy
+170,537
New +$1.28M ﹤0.01% 3040
2019
Q1 		– Sell
-40,875
Closed -$339K – 3446
2018
Q4 		$339K Sell
40,875
-49,036
-55% -$502K ﹤0.01% 3206
2018
Q3 		$1.24M Buy
89,911
+27,482
+44% +$223K ﹤0.01% 3025
2018
Q2 		$496K Hold
62,429
– – ﹤0.01% 3130
2018
Q1 		$468K Buy
62,429
+11,506
+23% +$87.3K ﹤0.01% 3116
2017
Q4 		$346K Buy
+50,923
New +$335K ﹤0.01% 3149

Other funds holding ALDX

KCM
Knoll Capital Management Miami, Florida $180M AUM 66.11% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
KCM
Kingdon Capital Management New York $911M AUM 51.11% 1-Year Est. Return
6CM
683 Capital Management New York $1.92B AUM 85.52% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Dimensional Fund Advisors's ALDX Position: Q1 2026 in Review

Dimensional Fund Advisors increased its Aldeyra Therapeutics (ALDX) stake by 1.9% in Q1 2026, buying an estimated $52.2K and bringing the position to 624,170 shares worth $1.05M. The position accounts for ﹤0.01% of the portfolio, ranked #2833.

Dimensional Fund Advisors first reported a position in ALDX in Q4 2017 and has held it in 33 quarters since. The position peaked at $11.1M in Q1 2023. 126 funds tracked by Wall St. Rank hold ALDX as of Q1 2026.

  • Dimensional Fund Advisors held 624,170 shares of Aldeyra Therapeutics worth $1.05M as of Q1 2026.
  • Dimensional Fund Advisors bought 11,912 Aldeyra Therapeutics shares in Q1 2026, an estimated $52.2K.
  • Aldeyra Therapeutics made up ﹤0.01% of Dimensional Fund Advisors's portfolio in Q1 2026, its #2833 holding.
  • Dimensional Fund Advisors first reported a position in Aldeyra Therapeutics in Q4 2017 and has held it in 33 quarters since.
  • Dimensional Fund Advisors's Aldeyra Therapeutics position peaked at $11.1M in Q1 2023.
  • 126 funds tracked by Wall St. Rank held Aldeyra Therapeutics as of Q1 2026.

Based on Dimensional Fund Advisors's 13F filing for Q1 2026, filed 7 May 2026.