<SEC-DOCUMENT>0001193125-26-308133.txt : 20260717
<SEC-HEADER>0001193125-26-308133.hdr.sgml : 20260717
<ACCEPTANCE-DATETIME>20260717214459
ACCESSION NUMBER:		0001193125-26-308133
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260715
FILED AS OF DATE:		20260717
DATE AS OF CHANGE:		20260717

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Castagna Michael
		CENTRAL INDEX KEY:			0001674282
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50865
		FILM NUMBER:		261185022

	MAIL ADDRESS:	
		STREET 1:		25134 RYE CANYON LOOP
		STREET 2:		SUITE 300
		CITY:			VALENCIA
		STATE:			CA
		ZIP:			91355

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MANNKIND CORP
		CENTRAL INDEX KEY:			0000899460
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				133607736
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1 CASPER STREET
		CITY:			DANBURY
		STATE:			CT
		ZIP:			06810
		BUSINESS PHONE:		818-661-5000

	MAIL ADDRESS:	
		STREET 1:		1 CASPER STREET
		CITY:			DANBURY
		STATE:			CT
		ZIP:			06810
</SEC-HEADER>
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    <footnotes>
        <footnote id="F1">A previously reported restricted stock unit award granted on May 25, 2023 vested on July 15, 2026 upon the achievement of performance objectives established by MannKind's compensation committee at the time of the approval of the award. Specifically, (i) the closing price of MannKind's common stock on June 30, 2026 was not less than the closing price on May 25, 2023 and (ii) MannKind's total shareholder return (TSR) over the period from May 23, 2023 to June 30, 2026 was at the 41.5th percentile of the TSR of the Russell 3000 Pharmaceutical &amp; Biotechnology Index over the same period. As a result, the performance objective was achieved at 83% of target, resulting in a total share delivery of 350,260 shares. The acquisition of 422,000 shares pursuant to the restricted stock award was reported in Table II of the Form 4 filed by the Reporting Person on May 26, 2023. The remaining 71,740 shares were forfeited in accordance with the performance vesting criteria.</footnote>
        <footnote id="F2">Includes 4,409 shares acquired under the Issuer's Employee Stock Purchase Plan on June 30, 2026.</footnote>
        <footnote id="F3">Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 incident to the vesting of previously reported restricted stock units.</footnote>
        <footnote id="F4">Each restricted stock unit represents a contingent right to receive one share of MNKD common stock.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Michael Castagna</signatureName>
        <signatureDate>2026-07-17</signatureDate>
    </ownerSignature>
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</SEC-DOCUMENT>
