Christopher B. Prentiss - 15 Jul 2026 Form 4 Insider Report for MANNKIND CORP (MNKD)

Reporting relationship: Chief Financial Officer
Issuer ticker: MNKD
Reported as of: 15 Jul 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 17 Jul 2026, 21:47:48 UTC
Prior SEC filing: 24 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Christopher Prentiss

Key filing fact

Christopher B. Prentiss filed Form 4 for MANNKIND CORP (MNKD) on 17 Jul 2026.

Key facts

This page summarizes Christopher B. Prentiss's Form 4 filing for MANNKIND CORP (MNKD).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 17 Jul 2026, 21:47.

Change

Previous filing in this sequence was filed on 24 Apr 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 0001717583 Primary reporting owner

Prentiss Christopher B

Relationship: Chief Financial Officer
Address: 1 CASPER STREET, DANBURY
Signature: /s/ Christopher Prentiss
Signature date: 17 Jul 2026

Reported non-derivative transactions

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

MNKD transaction

Common Stock, $0.01 Par Value

Tax liability

Transaction value
Shares: -11,572
Change %: -3.4%
Price: $4.09^*
Shares after: 329,343
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1, F2

MNKD transaction

Common Stock, $0.01 Par Value

Tax liability

Transaction value
Shares: -10,675
Change %: -3.2%
Price: $4.09^*
Shares after: 318,668
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

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 F2

Includes 1,991 shares acquired under the Issuer's Employee Stock Purchase Plan on June 30, 2026.