MannKind (MNKD) HR chief adds 33,898 shares under stock purchase plan

Rhea-AI Filing Summary

MANNKIND CORP Chief People & Workpl Officer Stuart A. Tross reported acquiring 33,898 shares of common stock at $2.95 per share. The shares were purchased through the company’s Market Price Stock Purchase Plan, which was approved by the Board of Directors on May 20, 2026. Following this transaction, he directly owns 1,026,122 common shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Tross Stuart A

Role Chief People & Workpl Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, $0.01 Par Value	33,898	$2.95	$100K

Holdings After Transaction: Common Stock, $0.01 Par Value — 1,026,122 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares acquired: 33,898 shares Purchase price: $2.95 per share Shares owned after transaction: 1,026,122 shares +2 more

5 metrics

Shares acquired 33,898 shares Common Stock, transaction on May 20, 2026

Purchase price $2.95 per share Market Price Stock Purchase Plan

Shares owned after transaction 1,026,122 shares Direct ownership following Form 4 transaction

Transaction type Grant, award, or other acquisition (Code A) Non-derivative Form 4 transaction

Acquisition count in filing 1 transaction Form 4 transaction summary

Key Terms

Market Price Stock Purchase Plan, Form 4, non-derivative, Grant, award, or other acquisition

4 terms

Market Price Stock Purchase Plan financial

"The securities were purchased through the Issuer's Market Price Stock Purchase Plan effective May 29, 2018."

Form 4 regulatory

"INSIDER FILING DATA (Form 4): { "issuerName": "MANNKIND CORP""

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

non-derivative financial

""transaction_type": "non-derivative","

Grant, award, or other acquisition financial

""transaction_code_description": "Grant, award, or other acquisition","

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

Tross Stuart A

(Last) (First) (Middle)

1 CASPER STREET

(Street)

DANBURY CONNECTICUT 06810

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MANNKIND CORP [ MNKD ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief People & Workpl Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/20/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, $0.01 Par Value	05/20/2026		A(1)		33,898	A	$2.95	1,026,122	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The securities were purchased through the Issuer's Market Price Stock Purchase Plan effective May 29, 2018. The purchase was approved by the Company's Board of Directors on May 20, 2026.

	/s/ Stuart A. Tross	05/22/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did MannKind (MNKD) report for Stuart A. Tross?

MannKind reported that Chief People & Workpl Officer Stuart A. Tross acquired 33,898 shares of common stock. The acquisition was recorded on a Form 4 as a grant or award-type transaction, not an open-market trade, and increased his directly held stake.

At what price did Stuart A. Tross acquire MannKind (MNKD) shares?

Stuart A. Tross acquired 33,898 MannKind common shares at $2.95 per share. This price is specified in the Form 4 filing and ties to the company’s Market Price Stock Purchase Plan used for the purchase.

How many MannKind (MNKD) shares does Stuart A. Tross own after this transaction?

After the reported acquisition, Stuart A. Tross directly owns 1,026,122 shares of MannKind common stock. This total reflects his holdings following the 33,898-share grant or purchase disclosed in the Form 4 filing.

Was the MannKind (MNKD) insider share purchase part of a stock plan?

Yes. The 33,898 shares were purchased through MannKind’s Market Price Stock Purchase Plan effective May 29, 2018. The company’s Board of Directors approved this specific purchase on May 20, 2026, according to the footnote disclosure.

What does the transaction code 'A' mean in this MannKind (MNKD) Form 4?

The Form 4 uses transaction code “A,” which denotes a grant, award, or other acquisition. In this case, it reflects shares acquired through the Market Price Stock Purchase Plan rather than an ordinary open-market buy or sell transaction.