James Samuel Shannon - 20 May 2026 Form 4 Insider Report for MANNKIND CORP (MNKD)

Reporting relationship: Director
Issuer ticker: MNKD
Reported as of: 20 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 22 May 2026, 20:50:21 UTC
Prior SEC filing: 30 Mar 2026
Next SEC filing: 12 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ James S Shannon

Key filing fact

James Samuel Shannon filed Form 4 for MANNKIND CORP (MNKD) on 22 May 2026.

Key facts

This page summarizes James Samuel Shannon's Form 4 filing for MANNKIND CORP (MNKD).
2 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 22 May 2026, 20:50.

Change

Previous filing in this sequence was filed on 30 Mar 2026.
Current net transaction value: $0.

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 0001485417 Primary reporting owner

Shannon James Samuel

Relationship: Director
Address: 1 CASPER STREET, DANBURY
Signature: /s/ James S Shannon
Signature date: 22 May 2026

Reported non-derivative transactions

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

MNKD holding

Common Stock $0.01 Par Value

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 36,458
Date: 20 May 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MNKD transaction Derivative

Restricted Stock Unit

Award

Transaction value
Shares: +82,781
Change %
Price: $0.000000^*
Shares after: 82,781
Date: 20 May 2026
Ownership: Direct
Underlying class: Common Stock, $0.01 Par Value
Underlying amount: 82,781
Exercise price
Footnotes: F2, F3

MNKD transaction Derivative

Restricted Stock Unit

Award

Transaction value
Shares: +16,556
Change %
Price: $0.000000^*
Shares after: 16,556
Date: 20 May 2026
Ownership: Direct
Underlying class: Common Stock, $0.01 Par Value
Underlying amount: 16,556
Exercise price
Footnotes: F2, F4

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

28,177 shares representing stock options were inadvertently included in Table I holdings on prior filings.

Footnote F2

Each restricted stock unit represents a contingent right to receive one share of MNKD common stock.

Footnote F3

Restricted stock unit vested on May 20, 2026, but the shares will not be delivered until there is a separation of service from the board of directors of MannKind Corporation.

Footnote F4

Award granted in lieu of annual cash retainer payment for non-employee directors. Restricted stock unit shall vest immediately, but the shares shall not be delivered until there is a separation of service from the board of directors of MannKind Corporation.