MannKind (MNKD) EVP receives new performance RSU and option awards

Rhea-AI Filing Summary

MannKind Corp EVP and General Counsel David Thomson reported equity awards, not open-market trades. He received 221,000 performance-based restricted stock units, each representing a contingent right to one share of common stock.

The performance units vest on January 15, 2029, with payout tied to MannKind’s total shareholder return versus the Russell 3000 Pharmaceutical & Biotechnology Index from April 1, 2026 to December 31, 2028. Payout ranges from 0% to 300% of the 221,000-target based on percentile rankings.

Thomson was also granted stock options for 217,000 shares at an exercise price of $2.44 per share, vesting 25% on March 23, 2027 and then 1/16 quarterly through March 23, 2031.

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

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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^*

Thomson David

(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)
	EVP Genl Counsel & Secretary

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/23/2026

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

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
Performance Restricted Stock Unit	(1)	03/23/2026		A		221,000		(2)	(2)	Common Stock, $0.01 Par Value	221,000	$0	221,000	D
Employee Stock Option (right to buy)	$2.44	03/23/2026		A		217,000		03/23/2027(3)	03/23/2036	Common Stock, $0.01 Par Value	217,000	$0	217,000	D

Explanation of Responses:

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

2. The performance-based restricted stock unit will vest on January 15, 2029. The number of shares delivered on the vesting date, as a percentage of the target specified [in Box 5 above], is determined by the percentile ranking of MannKind total shareholder return (TSR) over the period from April 1, 2026 until December 31, 2028 relative to the TSR of the Russell 3000 Pharmaceutical & Biotechnology Index over the measurement period, as follows: less than 25th percentile=0% of target, 25th percentile=50% of target, 50th percentile=100% of target, 75th percentile=200% percent of target, 90th percentile or higher=300% maximum. Payout values will be interpolated between the percentile rankings above.

3. 25% vesting on March 23, 2027 and thereafter 1/16th quarterly.

	/s/ David Thomson	03/25/2026
	** 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 equity awards did MannKind (MNKD) executive David Thomson receive?

David Thomson received 221,000 performance-based restricted stock units and 217,000 stock options. The RSUs can settle one share each, while the options allow purchases at $2.44 per share, subject to vesting and performance conditions described in the filing.

How do David Thomson’s MannKind (MNKD) performance RSUs vest and pay out?

The performance RSUs vest on January 15, 2029, with payout based on total shareholder return. Relative performance versus the Russell 3000 Pharmaceutical & Biotechnology Index can yield from 0% to 300% of the 221,000-unit target, interpolated between specified percentile thresholds.

What are the terms of David Thomson’s MannKind (MNKD) stock option grant?

Thomson received options on 217,000 MannKind shares at a $2.44 exercise price. Vesting occurs 25% on March 23, 2027, with the remaining 75% vesting in equal 1/16 quarterly installments until March 23, 2031, assuming continued eligibility.

Does the MannKind (MNKD) Form 4 show David Thomson buying or selling shares?

The Form 4 reports equity grants, not market trades. It shows performance-based RSU and stock option awards classified as acquisitions (grant or award), with no open-market purchases or sales reported in this specific filing for David Thomson.

What performance period applies to David Thomson’s MannKind (MNKD) TSR-based RSUs?

The RSU payout depends on MannKind’s total shareholder return from April 1, 2026 through December 31, 2028. Performance is measured against the Russell 3000 Pharmaceutical & Biotechnology Index to determine the percentage, from 0% to 300%, of the 221,000-target delivered.