David Thomson - Dec 2, 2025 Form 4 Insider Report for MANNKIND CORP (MNKD)

Signature
/s/ David Thomson
Stock symbol
MNKD
Transactions as of
Dec 2, 2025
Transactions value $
-$146,347
Form type
4
Date filed
12/4/2025, 07:27 PM
Previous filing
Jul 17, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Thomson David EVP Genl Counsel & Secretary 1 CASPER STREET, DANBURY /s/ David Thomson 2025-12-04 0001297976

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MNKD Common Stock, $0.01 Par Value Options Exercise $273K +60K +7.13% $4.55 902K Dec 2, 2025 Direct
transaction MNKD Common Stock, $0.01 Par Value Options Exercise $404K +87.8K +9.73% $4.60 989K Dec 2, 2025 Direct
transaction MNKD Common Stock, $0.01 Par Value Sale -$823K -148K -14.93% $5.57 842K Dec 2, 2025 Direct F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction MNKD Employee Stock Option (Right to Buy) Options Exercise $0 -20K -100% $0.00 0 Dec 2, 2025 Common Stock, $0.01 Par Value 20K $4.55 Direct
transaction MNKD Employee Stock Option (Right to Buy) Options Exercise $0 -20K -100% $0.00 0 Dec 2, 2025 Common Stock, $0.01 Par Value 20K $4.55 Direct
transaction MNKD Employee Stock Option (Right to Buy) Options Exercise $0 -20K -100% $0.00 0 Dec 2, 2025 Common Stock, $0.01 Par Value 20K $4.55 Direct
transaction MNKD Employee Stock Option (Right to Buy) Options Exercise $0 -87.8K -100% $0.00 0 Dec 2, 2025 Common Stock, $0.01 Par Value 87.8K $4.60 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 Transaction occurred pursuant to Rule 10b5-1 Plan established August 27, 2025.
F2 The weighted average sales price of the reported transaction was $5.57 based on a range of prices between $5.50 and $5.63. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided.