William D. Clark - 09 Jun 2026 Form 4 Insider Report for Aldeyra Therapeutics, Inc. (ALDX)

Reporting relationship: Director
Issuer ticker: ALDX
Reported as of: 09 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 11 Jun 2026, 16:23:47 UTC
Prior SEC filing: 24 Nov 2025
Next SEC filing: 15 Oct 2026
Source filing: View source filing
Reporting owner signature: /s/ William D Clark

Filing notes and source

Key filing fact

William D. Clark filed Form 4 for Aldeyra Therapeutics, Inc. (ALDX) on 11 Jun 2026.

Key facts

This page summarizes William D. Clark's Form 4 filing for Aldeyra Therapeutics, Inc. (ALDX).
2 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 11 Jun 2026, 16:23.

Change

Previous filing in this sequence was filed on 24 Nov 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001355415 Primary reporting owner

Clark William D

Relationship: Director
Address: C/O ALDEYRA THERAPEUTICS, INC., 131 HARTWELL AVENUE, LEXINGTON
Signature: /s/ William D Clark
Signature date: 11 Jun 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ALDX transaction Derivative

Stock Option (Right to Buy)

Award

Transaction value
Shares: +70,000
Change %
Price: $0.000000^*
Shares after: 70,000
Date: 09 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 70,000
Exercise price: $1.72
Footnotes: F1

ALDX transaction Derivative

Stock Option (Right to Buy)

Award

Transaction value
Shares: +2,323
Change %
Price: $0.000000^*
Shares after: 2,323
Date: 09 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,323
Exercise price: $1.72
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

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.

Footnote F2

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 Nominating/Corporate Governance Committee of the Board of Directors of the Issuer through the applicable vesting date.