<SEC-DOCUMENT>0001836354-25-000003.txt : 20250812
<SEC-HEADER>0001836354-25-000003.hdr.sgml : 20250812
<ACCEPTANCE-DATETIME>20250812175037
ACCESSION NUMBER:		0001836354-25-000003
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250812
DATE AS OF CHANGE:		20250812

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Aldeyra Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001341235
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-36332
		FILM NUMBER:		251208242

	BUSINESS ADDRESS:	
		STREET 1:		131 HARTWELL AVENUE
		STREET 2:		SUITE 320
		CITY:			LEXINGTON
		STATE:			MA
		ZIP:			02421
		BUSINESS PHONE:		781-761-4904

	MAIL ADDRESS:	
		STREET 1:		131 HARTWELL AVENUE
		STREET 2:		SUITE 320
		CITY:			LEXINGTON
		STATE:			MA
		ZIP:			02421

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Aldexa Therapeutics, Inc.
		DATE OF NAME CHANGE:	20130102

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Neuron Systems Inc
		DATE OF NAME CHANGE:	20051012

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Machatha Stephen
		CENTRAL INDEX KEY:			0001836354
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		131 HARTWELL AVENUE
		STREET 2:		SUITE 320
		CITY:			LEXINGTON
		STATE:			MA
		ZIP:			02421
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001836354</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001341235</issuerCik>
      <issuerName>Aldeyra Therapeutics, Inc.</issuerName>
      <secFileNumber>001-36332</secFileNumber>
      <issuerAddress>
        <com:street1>131 HARTWELL AVENUE</com:street1>
        <com:street2>SUITE 320</com:street2>
        <com:city>LEXINGTON</com:city>
        <com:stateOrCountry>MA</com:stateOrCountry>
        <com:zipCode>02421</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>781-761-4904</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Machatha Stephen</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Morgan Stanley Smith Barney LLC</name>
        <address>
          <com:street1>1 New York Plaza, 8th Floor</com:street1>
          <com:city>New York</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10004</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>22074</noOfUnitsSold>
      <aggregateMarketValue>116109.24</aggregateMarketValue>
      <noOfUnitsOutstanding>59895588</noOfUnitsOutstanding>
      <approxSaleDate>08/12/2025</approxSaleDate>
      <securitiesExchangeName>Nasdaq</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>07/15/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Unit Grant</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>46401</amountOfSecuritiesAcquired>
      <paymentDate>07/15/2022</paymentDate>
      <natureOfPayment>Services rendered</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>08/12/2025</noticeDate>
      <signature>/s/ Stephen Machatha</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
