Insider filing · MNKD
Michael Castagna
Chief Executive Officer
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MannKind Corporation
MNKD · Healthcare · 17 filings in 24 months
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Michael Castagna sold $601K of MannKind (MNKD)
Executed Dec 2 2025, disclosed Dec 4 2025, 2 days later.
Value, as filed
$601K
107,920 sh × $5.57
Executed
Dec 2 2025
the trade date, as filed
Disclosed
Dec 4 2025
2 days after the trade
Return, 21 sessionsiFrom the disclosed entry session; derived
–
purchases only
Returns are measured on stock purchases only.
The filer
MCMichael Castagna (Chief Executive Officer) filed 4 Form 4 reports in the trailing twelve months (1 purchase, 3 sales), most often in MannKind Corporation (MNKD). Across 1 priced purchase filing, the average 21-session return was -4.0% from execution and -4.0% from disclosure (delay-adjusted; derived). The largest single filing was $601K of MNKD (107,920 sh × $5.57, as filed), executed Dec 2 2025.
The name
MNKDHealthcare · MannKind Corporation, a biopharmaceutical company, focuses on the provision of various solutions for transforming chronic disease care
More Healthcare filings→ Insider filings, newest first→ View the original filing at www.sec.gov→Other filings by Michael Castagna in MNKD
MNKDPURCHASE
MannKind Corporation
$259K100,000 sh × $2.59
Exec Mar 10
Filed Mar 10 · 9:30 PM ET MNKDSALE MannKind Corporation $395K
65,804 sh × $6.01
Exec Dec 17 2025
Filed Dec 19 2025 · 5:30 PM ET MNKDSALE MannKind Corporation $253K
42,116 sh across 2 lots
Exec Dec 12 2025
Filed Dec 16 2025 · 5:30 PM ET