<SEC-DOCUMENT>0000950170-24-028300.txt : 20240307
<SEC-HEADER>0000950170-24-028300.hdr.sgml : 20240307
<ACCEPTANCE-DATETIME>20240307201636
ACCESSION NUMBER:		0000950170-24-028300
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240307
DATE AS OF CHANGE:		20240307

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Dyne Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001818794
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				364883909
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-39509
		FILM NUMBER:		24732050

	BUSINESS ADDRESS:	
		STREET 1:		1560 TRAPELO ROAD
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
		BUSINESS PHONE:		(781) 786-8230

	MAIL ADDRESS:	
		STREET 1:		1560 TRAPELO ROAD
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			McNeill Jonathan
		CENTRAL INDEX KEY:			0001824673
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		C/O DYNE THERAPEUTICS, INC.
		STREET 2:		830 WINTER STREET
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
</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:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<headerData>
<submissionType>144</submissionType>
<filerInfo>
<filer>
<filerCredentials>
<cik>0001824673</cik>
<ccc>XXXXXXXX</ccc>
</filerCredentials>
</filer>
<liveTestFlag>LIVE</liveTestFlag>
</filerInfo>
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<formData>
<issuerInfo>
<issuerCik>0001818794</issuerCik>
<issuerName>Dyne Therapeutics, Inc.</issuerName>
<secFileNumber>001-39509</secFileNumber>
<issuerAddress>
<street1 xmlns="http://www.sec.gov/edgar/common">1560 Trapelo Road</street1>
<city xmlns="http://www.sec.gov/edgar/common">Waltham</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">MA</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">02451</zipCode>
</issuerAddress>
<issuerContactPhone>(781)-786-8230</issuerContactPhone>
<nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Jonathan McNeill</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
<relationshipsToIssuer>
<relationshipToIssuer>Officer</relationshipToIssuer>
</relationshipsToIssuer>
</issuerInfo>
<securitiesInformation>
<securitiesClassTitle>Common Stock</securitiesClassTitle>
<brokerOrMarketmakerDetails>
<name>E*Trade Financial Corporation</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">3 Edison Drive</street1>
<city xmlns="http://www.sec.gov/edgar/common">Alpharaetta</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">GA</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">30005</zipCode>
</address>
</brokerOrMarketmakerDetails>
<noOfUnitsSold>2434</noOfUnitsSold>
<aggregateMarketValue>62921</aggregateMarketValue>
<noOfUnitsOutstanding>81958068</noOfUnitsOutstanding>
<approxSaleDate>03/07/2024</approxSaleDate>
<securitiesExchangeName>NASDAQ</securitiesExchangeName>
</securitiesInformation>
<securitiesToBeSold>
<securitiesClassTitle>Common Stock</securitiesClassTitle>
<acquiredDate>02/15/2024</acquiredDate>
<natureOfAcquisitionTransaction>Shares acquired upon vesting of restricted stock units granted pursuant to issuer's 2020 stock incentive plan</natureOfAcquisitionTransaction>
<nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
<isGiftTransaction>N</isGiftTransaction>
<amountOfSecuritiesAcquired>2434</amountOfSecuritiesAcquired>
<paymentDate>02/15/2024</paymentDate>
<natureOfPayment>Equity compensation</natureOfPayment>
</securitiesToBeSold>
<nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Jonathan McNeill</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">1560 Trapelo Road</street1>
<city xmlns="http://www.sec.gov/edgar/common">Waltham</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">MA</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">02451</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common Stock</securitiesClassTitle>
<saleDate>12/11/2023</saleDate>
<amountOfSecuritiesSold>1245</amountOfSecuritiesSold>
<grossProceeds>13346</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Jonathan McNeill</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">1560 Trapelo Road</street1>
<city xmlns="http://www.sec.gov/edgar/common">Waltham</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">MA</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">02451</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common Stock</securitiesClassTitle>
<saleDate>01/02/2024</saleDate>
<amountOfSecuritiesSold>11900</amountOfSecuritiesSold>
<grossProceeds>155890</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Jonathan McNeill</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">1560 Trapelo Road</street1>
<city xmlns="http://www.sec.gov/edgar/common">Waltham</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">MA</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">02451</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common Stock</securitiesClassTitle>
<saleDate>01/03/2024</saleDate>
<amountOfSecuritiesSold>17991</amountOfSecuritiesSold>
<grossProceeds>337048</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Jonathan McNeill</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">1560 Trapelo Road</street1>
<city xmlns="http://www.sec.gov/edgar/common">Waltham</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">MA</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">02451</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common Stock</securitiesClassTitle>
<saleDate>01/04/2024</saleDate>
<amountOfSecuritiesSold>2009</amountOfSecuritiesSold>
<grossProceeds>36246</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Jonathan McNeill</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">1560 Trapelo Road</street1>
<city xmlns="http://www.sec.gov/edgar/common">Waltham</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">MA</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">02451</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common Stock</securitiesClassTitle>
<saleDate>01/26/2024</saleDate>
<amountOfSecuritiesSold>20000</amountOfSecuritiesSold>
<grossProceeds>490502</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Jonathan McNeill</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">1560 Trapelo Road</street1>
<city xmlns="http://www.sec.gov/edgar/common">Waltham</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">MA</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">02451</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common Stock</securitiesClassTitle>
<saleDate>02/29/2024</saleDate>
<amountOfSecuritiesSold>4268</amountOfSecuritiesSold>
<grossProceeds>117382</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Jonathan McNeill</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">1560 Trapelo Road</street1>
<city xmlns="http://www.sec.gov/edgar/common">Waltham</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">MA</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">02451</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common Stock</securitiesClassTitle>
<saleDate>03/01/2024</saleDate>
<amountOfSecuritiesSold>24260</amountOfSecuritiesSold>
<grossProceeds>694497</grossProceeds>
</securitiesSoldInPast3Months>
<remarks>Sale represents shares automatically sold by the Reporting Person to satisfy tax withholding obligations in connection with the vesting of restricted stock units granted to the Reporting Person on November 15, 2023.</remarks>
<noticeSignature>
<noticeDate>03/07/2024</noticeDate>
<signature>/s/ Richard Scalzo, Attorney-in-Fact</signature>
</noticeSignature>
</formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
