MannKind director receives 99,337 RSUs as compensation

MannKind Corporation director Anthony C. Hooper reported equity-based compensation in the form of restricted stock units (RSUs).

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Form Type

Rhea-AI Filing Summary

MannKind Corporation director Anthony C. Hooper reported equity-based compensation in the form of restricted stock units (RSUs). On May 20, 2026, he received an award of 16,556 RSUs, each representing a contingent right to one share of MannKind common stock, which vested that day but will only be delivered after he separates from the board.

On the same date, he also received a second grant of 82,781 RSUs in lieu of his annual cash retainer as a non-employee director. This award vests immediately, with share delivery likewise deferred until his separation from board service. These are compensation-related acquisitions, not open-market purchases or sales of MannKind shares.

Insider Trade Summary

Grant/Award: 99,337 shares

Grant/Award 2 txns

Insider HOOPER ANTHONY C

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

Holdings After Transaction: Restricted Stock Unit — 99,337 contracts (Direct)

Footnotes (3)

F1. Each restricted stock unit represents a contingent right to receive one share of MNKD common stock.
F2. 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.
F3. 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

RSU award 1 size: 16,556 RSUs RSU award 2 size: 82,781 RSUs Total RSUs granted: 99,337 RSUs +4 more

7 metrics

RSU award 1 size 16,556 RSUs Award vested on May 20, 2026; shares deliverable at board separation

RSU award 2 size 82,781 RSUs Granted in lieu of annual cash retainer; vests immediately, settles at board separation

Total RSUs granted 99,337 RSUs Combined size of both MannKind director awards on May 20, 2026

Exercise price per RSU $0.00 per unit Restricted stock unit grants recorded with zero exercise price

Derivative transactions count 2 transactions Both coded as grant, award, or other acquisition (Code A)

Post-transaction RSU holding 1 16,556 RSUs Total RSUs following smaller award transaction

Post-transaction RSU holding 2 82,781 RSUs Total RSUs following larger award transaction

Key Terms

Restricted Stock Unit, contingent right, separation of service from the board of directors, annual cash retainer payment, +1 more

5 terms

Restricted Stock Unit financial

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

separation of service from the board of directors regulatory

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

annual cash retainer payment financial

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

non-employee directors regulatory

"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 transactions did MNKD director Anthony C. Hooper report?

Anthony C. Hooper reported receiving two restricted stock unit awards as director compensation, totaling 99,337 RSUs, each representing a contingent right to receive one share of MannKind common stock, rather than any open-market purchases or sales.

How many restricted stock units did Anthony C. Hooper receive from MannKind (MNKD)?

Anthony C. Hooper received 16,556 restricted stock units in one award and 82,781 restricted stock units in another, for a combined total of 99,337 RSUs, each convertible into one share of MannKind common stock under the award terms.

Were Anthony C. Hooper’s MNKD transactions open-market buys or sells?

No, the reported MannKind transactions were not open-market buys or sells. They were grants of restricted stock units as compensation, recorded under a grant or award acquisition code, with no cash price per share listed in the filing.

When do Anthony C. Hooper’s MannKind restricted stock units vest and settle?

One RSU award vested on May 20, 2026, while another vests immediately. However, the underlying MannKind shares for both awards will not be delivered until there is a separation of service from the company’s board of directors.

Why did Anthony C. Hooper receive an 82,781‑unit RSU award from MannKind?

The 82,781‑unit restricted stock award was granted in lieu of Anthony C. Hooper’s annual cash retainer as a non-employee director of MannKind, effectively substituting equity-based compensation for the cash payment normally provided for board service.

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 - 08:51 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^*

HOOPER ANTHONY C

(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)

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	⁽¹⁾	05/20/2026		A⁽²⁾		82,781		⁽²⁾	⁽²⁾	Common Stock, $0.01 Par Value	82,781	$0	82,781	D
Restricted Stock Unit	⁽¹⁾	05/20/2026		A		16,556		⁽³⁾	⁽³⁾	Common Stock, $0.01 Par Value	16,556	$0	16,556	D

Explanation of Responses:

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

2. 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.

3. 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/ Anthony Hooper	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