[Form 4] Aldeyra Therapeutics, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Aldeyra Therapeutics director Neal Walker received two new stock option grants. On the grant date, he was awarded options for 3,318 and 70,000 shares of common stock at an exercise price of $1.72 per share. Each grant becomes fully exercisable one year after grant, contingent on his continued Board and Compensation Committee service.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Walker Neal

Role null

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	70,000	$0.00	--
Grant/Award	Stock Option (Right to Buy)	3,318	$0.00	--

Holdings After Transaction: Stock Option (Right to Buy) — 70,000 shares (Direct, null)

Footnotes (1)

1. Exercisable with respect to 100% of the shares on the one-year anniversary of the grant date, provided that the Reporting Person provides continuous service as a member of the Board of Directors of the Issuer through the applicable vesting date. Exercisable with respect to 100% of the shares on the one-year anniversary of the grant date, provided that the Reporting Person provides continuous service as a member of the Compensation Committee of the Board of Directors of the Issuer through the applicable vesting date.

Key Figures

Option grant size 1: 3,318 options Option grant size 2: 70,000 options Exercise price: $1.72 per share +2 more

5 metrics

Option grant size 1 3,318 options Stock Option (Right to Buy) grant to Neal Walker

Option grant size 2 70,000 options Stock Option (Right to Buy) grant to Neal Walker

Exercise price $1.72 per share Exercise price for both option grants

Expiration date June 8, 2036 Expiration for both option grants

Vesting schedule 100% after one year Requires continuous Board or committee service

Key Terms

Stock Option (Right to Buy), exercise price, Board of Directors, Compensation Committee, +1 more

5 terms

Stock Option (Right to Buy) financial

"security_title: Stock Option (Right to Buy)"

exercise price financial

"conversion_or_exercise_price: 1.7200"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

Board of Directors financial

"service as a member of the Board of Directors of the Issuer"

The Board of Directors is a group of people chosen by a company's owners to help make big decisions and oversee how the company is run. They act like a team of advisors or managers, making sure the company stays on track and meets its goals. Their choices can influence the company's success and how it grows.

Compensation Committee financial

"service as a member of the Compensation Committee of the Board of Directors"

A compensation committee is a group within a company's leadership responsible for setting and reviewing how much top executives and employees are paid, including salaries, bonuses, and benefits. It matters to investors because fair and effective pay decisions can influence a company's performance, leadership motivation, and overall governance, helping ensure that the company’s management is aligned with shareholders’ interests.

vesting date financial

"through the applicable vesting date"

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Walker Neal

(Last) (First) (Middle)

C/O ALDEYRA THERAPEUTICS, INC.

131 HARTWELL AVENUE

(Street)

LEXINGTON MASSACHUSETTS 02421

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Aldeyra Therapeutics, Inc. [ ALDX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/09/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$1.72	06/09/2026		A		70,000		(1)	06/08/2036	Common Stock	70,000	$0	70,000	D
Stock Option (Right to Buy)	$1.72	06/09/2026		A		3,318		(2)	06/08/2036	Common Stock	3,318	$0	3,318	D

Explanation of Responses:

1. Exercisable with respect to 100% of the shares on the one-year anniversary of the grant date, provided that the Reporting Person provides continuous service as a member of the Board of Directors of the Issuer through the applicable vesting date.

2. Exercisable with respect to 100% of the shares on the one-year anniversary of the grant date, provided that the Reporting Person provides continuous service as a member of the Compensation Committee of the Board of Directors of the Issuer through the applicable vesting date.

	/s/ Neal Walker	06/11/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)