AQR reports 6.22% stake in Aldeyra Therapeutics

AQR Capital Management, LLC and its parent AQR Capital Management Holdings, LLC report beneficial ownership of Aldeyra Therapeutics, Inc. common stock.

Rhea-AI Filing Summary

AQR Capital Management, LLC and its parent AQR Capital Management Holdings, LLC report beneficial ownership of Aldeyra Therapeutics, Inc. common stock. They state beneficial ownership of 3,751,558 shares of common stock, representing 6.22% of the outstanding class.

Both entities report shared voting power over 3,381,606 shares and shared dispositive power over 3,751,558 shares, with no sole voting or dispositive power. AQR Capital Management, LLC is described as a wholly owned subsidiary of AQR Capital Management Holdings, LLC.

Key Figures

Beneficially owned shares: 3,751,558 shares Percent of class: 6.22% Shared voting power: 3,381,606 shares +1 more

4 metrics

Beneficially owned shares 3,751,558 shares Common stock beneficially owned by AQR Capital entities

Percent of class 6.22% Percentage of Aldeyra common stock class reported as owned

Shared voting power 3,381,606 shares Shares over which AQR reports shared power to vote

Shared dispositive power 3,751,558 shares Shares over which AQR reports shared power to dispose

Key Terms

beneficially owned, shared voting power, shared dispositive power, dispositive power, +1 more

5 terms

beneficially owned financial

"Amount beneficially owned: 3,751,558"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

shared voting power financial

"Shared Voting Power 3,381,606.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"Shared Dispositive Power 3,751,558.00"

dispositive power financial

"Sole Dispositive Power 0.00"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

parent holding company financial

"If a parent holding company has filed this schedule"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What percentage of Aldeyra Therapeutics (ALDX) does AQR Capital report owning?

AQR Capital Management, LLC and its parent report beneficial ownership of 6.22% of Aldeyra Therapeutics’ common stock, corresponding to 3,751,558 shares as disclosed in the ownership section.

How many Aldeyra Therapeutics (ALDX) shares does AQR Capital beneficially own?

AQR Capital entities report beneficial ownership of 3,751,558 shares of Aldeyra Therapeutics common stock, which they state represents 6.22% of the class of outstanding common shares.

What voting power does AQR Capital have over Aldeyra Therapeutics (ALDX) shares?

AQR Capital reports shared voting power over 3,381,606 shares of Aldeyra Therapeutics and no sole voting power, indicating that voting authority over those shares is exercised jointly with others.

What dispositive power does AQR Capital report for its Aldeyra Therapeutics (ALDX) holdings?

AQR Capital states it has shared dispositive power over 3,751,558 shares and no sole dispositive power, meaning decisions to sell or otherwise dispose of these shares are held jointly with other parties.

How are AQR Capital Management, LLC and AQR Capital Management Holdings, LLC related in the ALDX ownership filing?

The filing states that AQR Capital Management, LLC is a wholly owned subsidiary of AQR Capital Management Holdings, LLC, and both entities jointly report the same 3,751,558 Aldeyra shares of beneficial ownership.

Where is Aldeyra Therapeutics (ALDX) headquartered according to this ownership report?

Aldeyra Therapeutics’ principal executive offices are listed at 131 Hartwell Avenue, Suite 320, Lexington, Massachusetts 02421, providing the company’s primary business address in this ownership disclosure.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/12/2026 - 10:49 AM Accepted by SEC EDGAR 08/12/2026 - 10:48 AM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Aldeyra Therapeutics, Inc.

(Name of Issuer)

Common Stock, $0.001 par value per share

(Title of Class of Securities)

01438T106

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 01438T106

1

Names of Reporting Persons

AQR Capital Management, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 3,381,606.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,751,558.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,751,558.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.22 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): 01438T106

1

Names of Reporting Persons

AQR Capital Management Holdings, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 3,381,606.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,751,558.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,751,558.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.22 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Aldeyra Therapeutics, Inc.
(b)	Address of issuer's principal executive offices: 131 HARTWELL AVENUE, SUITE 320, LEXINGTON, MASSACHUSETTS 02421
Item 2.
(a)	Name of person filing: AQR Capital Management, LLC AQR Capital Management Holdings, LLC
(b)	Address or principal business office or, if none, residence: ONE GREENWICH PLAZA SUITE 130 Greenwich, Connecticut 06830
(c)	Citizenship: AQR Capital Management, LLC - UNITED STATES AQR Capital Management Holdings, LLC - UNITED STATES
(d)	Title of class of securities: Common Stock, $0.001 par value per share
(e)	CUSIP Number(s): 01438T106
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 3,751,558
(b)	Percent of class: 6.22 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: AQR Capital Management, LLC - 0 AQR Capital Management Holdings, LLC - 0
	(ii) Shared power to vote or to direct the vote: AQR Capital Management, LLC - 3,381,606 AQR Capital Management Holdings, LLC - 3,381,606
	(iii) Sole power to dispose or to direct the disposition of: AQR Capital Management, LLC - 0 AQR Capital Management Holdings, LLC - 0
	(iv) Shared power to dispose or to direct the disposition of: AQR Capital Management, LLC - 3,751,558 AQR Capital Management Holdings, LLC - 3,751,558
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Item 2(a) above.
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

AQR Capital Management, LLC

Signature:	Henry Parkin
Name/Title:	Authorized Signatory
Date:	08/12/2026

AQR Capital Management Holdings, LLC

Signature:	Henry Parkin
Name/Title:	Authorized Signatory
Date:	08/12/2026

Exhibit Information

AQR Capital Management Holdings, LLC and AQR Capital Management, LLC hereby agree that this Schedule 13G is filed on behalf of each of the parties. AQR Capital Management, LLC is a wholly owned subsidiary of AQR Capital Management Holdings, LLC.