MannKind director receives 99,337 RSUs in equity awards

Shannon James Samuel reported acquisition or exercise transactions in this Form 4 filing.

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Form Type

Rhea-AI Filing Summary

Shannon James Samuel reported acquisition or exercise transactions in this Form 4 filing.

MannKind Corporation director James Samuel Shannon reported new equity awards and updated his share holdings. The filing shows he holds 36,458 shares of MannKind common stock directly. He also received two grants of restricted stock units (RSUs) tied to MannKind common stock.

One RSU grant covers 16,556 units that vested on May 20, 2026, but the underlying shares will only be delivered after he separates from service on MannKind’s board. A second grant of 82,781 RSUs was awarded in lieu of an annual cash retainer for non‑employee directors and vests immediately, with share delivery also deferred until board service ends. Each RSU represents the right to receive one share of MannKind common stock.

Insider Trade Summary

Grant/Award: 99,337 shares

Grant/Award 3 txns

Insider Shannon James Samuel

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Unit	82,781	$0.00	$0.00
Grant/Award	Restricted Stock Unit	16,556	$0.00	$0.00
holding	Common Stock $0.01 Par Value	--	--	--

Holdings After Transaction: Restricted Stock Unit — 99,337 contracts (Direct); Common Stock $0.01 Par Value — 36,458 shares (Direct)

Footnotes (4)

F1. 28,177 shares representing stock options were inadvertently included in Table I holdings on prior filings.
F2. Each restricted stock unit represents a contingent right to receive one share of MNKD common stock.
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.
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.

Key Figures

Common shares held: 36,458 shares RSU grant 1: 16,556 units RSU grant 2: 82,781 units +3 more

6 metrics

Common shares held 36,458 shares Direct MannKind common stock holdings reported

RSU grant 1 16,556 units Restricted stock units vested on May 20, 2026

RSU grant 2 82,781 units Restricted stock units granted in lieu of annual cash retainer

Total RSU awards 99,337 units Sum of reported restricted stock unit grants

Prior options misclassified 28,177 shares Stock options previously included in Table I holdings by mistake

Acquire transactions 2 transactions RSU grant/award acquisitions in this Form 4

Key Terms

Restricted Stock Unit, contingent right, annual cash retainer, separation of service, +1 more

5 terms

Restricted Stock Unit financial

"The filing reports two transactions labeled as “Restricted Stock Unit” tied to MannKind common stock."

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

contingent right financial

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

annual cash retainer financial

"Award granted in lieu of annual cash retainer payment for non-employee directors."

separation of service financial

"Shares will not be delivered until there is a separation of service from the board of directors."

non-employee directors financial

"Award granted in lieu of annual cash retainer payment for non-employee directors."

Non-employee directors are board members who do not work for the company as salaried employees and usually do not hold day-to-day management roles. They act like outside referees or independent coaches, providing oversight, asking tough questions, and protecting shareholders’ interests; investors care because these directors help ensure management is accountable, reduce conflicts of interest, and influence decisions that affect company strategy and long-term value.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider activity did MannKind (MNKD) director James Samuel Shannon report?

James Samuel Shannon reported equity awards and updated holdings. He holds 36,458 MannKind common shares and received two restricted stock unit grants totaling 99,337 units that convert into common stock, with delivery deferred until his service on the board ends.

How many MannKind (MNKD) restricted stock units did James Samuel Shannon receive?

He received 16,556 restricted stock units in one grant and 82,781 units in another, totaling 99,337. Each unit represents a right to receive one MNKD common share, subject to vesting and deferred delivery conditions described in the disclosure.

What are the vesting terms of James Samuel Shannon’s MannKind (MNKD) RSU awards?

One RSU award of 16,556 units vested on May 20, 2026, while an 82,781‑unit award vests immediately. For both grants, MannKind will not deliver the underlying common shares until Shannon experiences a separation of service from the company’s board.

Why did MannKind (MNKD) grant 82,781 RSUs to director James Samuel Shannon?

The 82,781 restricted stock units were granted instead of MannKind’s annual cash retainer for non‑employee directors. The award vests immediately, but the underlying common shares will only be delivered once Shannon is no longer serving on MannKind’s board of directors.

What does each MannKind (MNKD) restricted stock unit represent in this filing?

Each restricted stock unit in Shannon’s awards represents a contingent right to receive one share of MannKind common stock. The actual shares are issued only after vesting and, in this case, upon his separation of service from the MannKind board.

Did the MannKind (MNKD) filing mention any corrections to prior director holdings?

Yes. The disclosure notes that 28,177 shares representing stock options had been inadvertently included in Table I holdings in prior filings. This clarification helps distinguish between option positions and actual MannKind common stock holdings previously reported.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 05/22/2026 - 08:50 PM

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^*

Shannon James Samuel

(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)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock $0.01 Par Value								36,458⁽¹⁾	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Unit	⁽²⁾	05/20/2026		A⁽³⁾		82,781		⁽³⁾	⁽³⁾	Common Stock, $0.01 Par Value	82,781	$0	82,781	D
Restricted Stock Unit	⁽²⁾	05/20/2026		A		16,556		⁽⁴⁾	⁽⁴⁾	Common Stock, $0.01 Par Value	16,556	$0	16,556	D

Explanation of Responses:

1. 28,177 shares representing stock options were inadvertently included in Table I holdings on prior filings.

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

3. 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.

4. 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.

	/s/ James S Shannon	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)

Source: View Original Filing on SEC EDGAR