<SEC-DOCUMENT>0001604019-25-000003.txt : 20250709
<SEC-HEADER>0001604019-25-000003.hdr.sgml : 20250709
<ACCEPTANCE-DATETIME>20250709161819
ACCESSION NUMBER:		0001604019-25-000003
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250707
FILED AS OF DATE:		20250709
DATE AS OF CHANGE:		20250709

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bonstein Sara
		CENTRAL INDEX KEY:			0001604019
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-30739
		FILM NUMBER:		251113808

	MAIL ADDRESS:	
		STREET 1:		700 US HIGHWAY 202/206
		CITY:			BRUDGEWATER
		STATE:			NJ
		ZIP:			08807

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INSMED Inc
		CENTRAL INDEX KEY:			0001104506
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				541972729
		STATE OF INCORPORATION:			VA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		700 US HIGHWAY 202/206
		CITY:			BRIDGEWATER
		STATE:			NJ
		ZIP:			08807
		BUSINESS PHONE:		908-977-9900

	MAIL ADDRESS:	
		STREET 1:		700 US HIGHWAY 202/206
		CITY:			BRIDGEWATER
		STATE:			NJ
		ZIP:			08807

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INSMED INC
		DATE OF NAME CHANGE:	20000128
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>FORM 4
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    <footnotes>
        <footnote id="F1">This transaction was effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on March 5, 2025, in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.</footnote>
        <footnote id="F2">Includes 357 shares acquired through the Company's 2018 Employee Stock Purchase Plan.</footnote>
        <footnote id="F3">This is the weighted average sales price representing 35,583 shares sold at prices ranging from $95.01 to $96.00 per share. The Reporting Person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer the number of shares sold at each price within the price range upon request.</footnote>
        <footnote id="F4">This is the weighted average sales price representing 22,181 shares sold at prices ranging from $96.01 to $96.95 per share. The Reporting Person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer the number of shares sold at each price within the price range upon request.</footnote>
        <footnote id="F5">The options become exercisable based on the following vesting schedule: 25% vest on the first anniversary of the grant date and an additional 12.5% vest on each sixth month anniversary date thereafter through the fourth anniversary of the date of grant.</footnote>
        <footnote id="F6">The options became exercisable based on the following vesting schedule: 25% vested on the first anniversary of the grant date and an additional 12.5% vested on each sixth month anniversary date thereafter through the fourth anniversary of the date of grant. All options are currently exercisable.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Sara Bonstein, by Michael A. Smith as Attorney-in-fact</signatureName>
        <signatureDate>2025-07-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
