Jim Simons Aldeyra Therapeutics, Inc. Transaction History

Renaissance Technologies LLC

$70.6 Billion
Q2 2025

A detailed history of Jim Simons (Renaissance Technologies LLC) transactions in Aldeyra Therapeutics, Inc. stock. As of the latest transaction made, Renaissance Technologies LLC holds 112,800 shares of ALDX stock, worth $604,608. This represents 0.0% of its overall portfolio holdings.

Number of Shares

112,800

Previous 116,600 3.26%

Holding current value

$604,608

Previous $670,000 35.52%

% of portfolio

0.0%

Previous 0.0%

23 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 13, 2025	SELL	$1.42 - $5.48 $5,396 - $20,824	-3,800 Reduced 3.26%	112,800 $432,000
Q1 2025 May 14, 2025	SELL	$4.7 - $6.98 $237,350 - $352,490	-50,500 Reduced 30.22%	116,600 $670,000
Q4 2024 Feb 13, 2025	BUY	$4.21 - $5.9 $251,337 - $352,230	59,700 Added 55.59%	167,100 $833,000
Q3 2024 Nov 13, 2024	SELL	$3.19 - $6.32 $1.26 Million - $2.5 Million	-395,900 Reduced 78.66%	107,400 $578,000
Q2 2024 Aug 09, 2024	SELL	$3.25 - $4.72 $729,267 - $1.06 Million	-224,390 Reduced 30.84%	503,300 $1.67 Million
Q1 2024 May 13, 2024	BUY	$2.77 - $4.22 $1.18 Million - $1.8 Million	427,690 Added 142.56%	727,690 $2.38 Million
Q4 2023 Feb 13, 2024	BUY	$1.47 - $6.06 $114,954 - $473,891	78,200 Added 35.26%	300,000 $1.05 Million
Q3 2023 Nov 14, 2023	SELL	$6.11 - $8.16 $510,527 - $681,816	-83,556 Reduced 27.36%	221,800 $1.48 Million
Q2 2023 Aug 11, 2023	BUY	$7.11 - $11.89 $412,067 - $689,096	57,956 Added 23.43%	305,356 $2.56 Million
Q1 2023 May 12, 2023	BUY	$5.77 - $9.93 $195,603 - $336,627	33,900 Added 15.88%	247,400 $2.46 Million
Q4 2022 Feb 13, 2023	SELL	$5.08 - $7.09 $837,184 - $1.17 Million	-164,800 Reduced 43.56%	213,500 $1.49 Million
Q3 2022 Nov 14, 2022	SELL	$3.8 - $7.74 $516,040 - $1.05 Million	-135,800 Reduced 26.42%	378,300 $2.02 Million
Q2 2022 Aug 12, 2022	BUY	$2.43 - $4.85 $1.25 Million - $2.49 Million	514,100 New	514,100 $2.05 Million
Q1 2021 May 13, 2021	SELL	$6.53 - $14.42 $351,314 - $775,796	-53,800 Closed	0 $0
Q4 2020 Feb 10, 2021	BUY	$6.31 - $8.13 $339,478 - $437,394	53,800 New	53,800 $369,000
Q3 2020 Nov 13, 2020	SELL	$4.0 - $7.53 $318,472 - $599,523	-79,618 Closed	0 $0
Q2 2020 Aug 13, 2020	SELL	$1.97 - $5.05 $1.02 Million - $2.61 Million	-516,782 Reduced 86.65%	79,618 $332,000
Q1 2020 May 14, 2020	BUY	$1.62 - $6.4 $837,864 - $3.31 Million	517,200 Added 653.03%	596,400 $1.47 Million
Q4 2019 Feb 13, 2020	BUY	$4.73 - $7.98 $374,616 - $632,016	79,200 New	79,200 $460,000
Q3 2019 Nov 13, 2019	SELL	$4.41 - $6.12 $397,782 - $552,024	-90,200 Closed	0 $0
Q2 2019 Aug 12, 2019	BUY	$6.0 - $9.0 $541,200 - $811,800	90,200 New	90,200 $541,000
Q1 2019 May 14, 2019	SELL	$7.14 - $9.85 $85,680 - $118,200	-12,000 Closed	0 $0
Q4 2018 Feb 13, 2019	BUY	$7.26 - $13.29 $87,120 - $159,480	12,000 New	12,000 $100,000

Others Institutions Holding ALDX

# of Institutions

135

Shares Held

34.9M

Call Options Held

244K

Put Options Held

51.6K

View Full List

About Aldeyra Therapeutics, Inc.

Ticker ALDX
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Shares Outstandng 58,323,100
Market Cap $313M
Description
Aldeyra Therapeutics, Inc., a biotechnology company, develops and commercializes medicines for immune-mediated ocular and systemic diseases. The company's lead product candidate is reproxalap, a reactive aldehyde species (RASP)modulator, which is in Phase III clinical trial for the treatment of dry eye diseases and allergic conjunctivitis. It al...

More about ALDX

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