Michael Castagna - 10 Mar 2026 Form 4 Insider Report for MANNKIND CORP (MNKD)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: MNKD
Reported as of: 10 Mar 2026
Net transaction value: +$259,000
SEC form: 4
Accepted by SEC: 10 Mar 2026, 21:30:02 UTC
Prior SEC filing: 02 Mar 2026
Next SEC filing: 25 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Michael Castagna

Key filing fact

Michael Castagna filed Form 4 for MANNKIND CORP (MNKD) on 10 Mar 2026.

Key facts

This page summarizes Michael Castagna's Form 4 filing for MANNKIND CORP (MNKD).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 10 Mar 2026, 21:30.

Change

Previous filing in this sequence was filed on 02 Mar 2026.
Current net transaction value: +$259,000.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001674282 Primary reporting owner

Castagna Michael

Relationship: Chief Executive Officer, Director
Address: 1 CASPER STREET, DANBURY
Signature: /s/ Michael Castagna
Signature date: 10 Mar 2026

This filing has been restated. Open the amended filing.

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MNKD transaction

Common Stock, $0.01 Par Value

Purchase

Transaction value: $259,000
Shares: +100,000
Change %: +4%
Price: $2.59
Shares after: 2,575,911
Date: 10 Mar 2026
Ownership: Direct
Footnotes: F1

MNKD holding

Common Stock $0.01 Par Value

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,500
Date: 10 Mar 2026
Ownership: By Spouse

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The weighted average purchase price of the reported transaction was $2.59 based on a range of prices between $2.58 and $2.60. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares purchased at each separate price will be provided.