MannKind director sells 39,051 shares under plan

MannKind Corp director Steven B. Binder reported selling 39,051 shares of common stock on 2026-08-07 in an open-market transaction under a pre-established Rule 10b5-1 trading plan.

Rhea-AI Filing Summary

MannKind Corp director Steven B. Binder reported selling 39,051 shares of common stock on 2026-08-07 in an open-market transaction under a pre-established Rule 10b5-1 trading plan. The weighted average sale price was $4.06 per share, and Binder now directly holds 785,867 shares of MannKind common stock.

Insider Trade Summary 10b5-1

Net Seller: 39,051 shares

Net Sell 1 txn

Insider Binder Steven B.

Role Director

Sold 39,051 shs ($159K)

Type	Security	Shares	Price	Value
Sale	Common Stock, $0.01 Par Value F2, F1	39,051	$4.06	$159K

Holdings After Transaction: Common Stock, $0.01 Par Value — 785,867 shares (Direct)

Footnotes (2)

1. F1. Transaction occurred pursuant to Rule 10B5-1 Plan established December 2, 2025.
2. F2. The weighted average sales price of the reported transaction was $4.06 based on a range of prices between $3.86 and $4.13. 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.

Key Figures

Shares sold: 39,051 shares Weighted average sale price: $4.06 per share Price range: $3.86 – $4.13 per share +3 more

6 metrics

Shares sold 39,051 shares Common stock sale on 2026-08-07

Weighted average sale price $4.06 per share Based on prices between $3.86 and $4.13

Price range $3.86 – $4.13 per share Range of prices for reported sale

Shares owned after transaction 785,867 shares Director’s direct holdings following sale

Net shares sold 39,051 shares Net-sell direction in transaction summary

10b5-1 plan date December 2, 2025 Date the Rule 10b5-1 Plan was established

Key Terms

Rule 10b5-1 Plan, weighted average sales price, open market or private transaction, net-sell

4 terms

Rule 10b5-1 Plan regulatory

"Transaction occurred pursuant to Rule 10B5-1 Plan established December 2, 2025."

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

weighted average sales price financial

"The weighted average sales price of the reported transaction was $4.06 based"

open market or private transaction market

"transaction code description Sale in open market or private transaction"

net-sell financial

"transactionSummary shows netBuySellDirection net-sell"

FAQ

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

What insider transaction did MannKind (MNKD) director Steven B. Binder report?

Steven B. Binder reported a sale of 39,051 MannKind common shares on 2026-08-07. The transaction was executed as an open-market or private sale under a Rule 10b5-1 trading plan.

At what price did Steven B. Binder sell MNKD shares in this Form 4?

The reported weighted average sales price was $4.06 per share, based on a price range between $3.86 and $4.13. Detailed per-trade pricing is available upon request to the issuer or SEC staff.

How many MannKind (MNKD) shares does Steven B. Binder hold after this transaction?

After the reported sale, Steven B. Binder directly holds 785,867 shares of MannKind common stock. This figure reflects his post-transaction direct ownership as disclosed in the Form 4 filing.

Was the MNKD insider sale by Steven B. Binder under a Rule 10b5-1 plan?

Yes. The filing states the transaction occurred pursuant to a Rule 10b5-1 Plan established on December 2, 2025. Such plans pre-arrange trading terms, reducing the informational value of the sale’s timing.

How many MNKD shares in total did Steven B. Binder sell in this Form 4?

The Form 4 reports that Steven B. Binder sold 39,051 shares of MannKind common stock. The transaction summary shows net activity of 39,051 shares sold and characterizes the filing as a net-sell event.

Does the MannKind (MNKD) Form 4 show any option exercises or derivative trades?

No. The filing only reports a single non-derivative stock sale of 39,051 shares. The derivativeSummary section is empty, and the transaction summary shows no option exercises or derivative transactions.

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

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Available on EDGAR 08/10/2026 - 08:45 PM Accepted by SEC EDGAR 08/10/2026 - 08:44 PM Learn about SEC filing dates

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).

X

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^*

Binder Steven B.

(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)
08/07/2026

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	08/07/2026		S		39,051	D(1)	$4.06(2)	785,867	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. Transaction occurred pursuant to Rule 10B5-1 Plan established December 2, 2025.

2. The weighted average sales price of the reported transaction was $4.06 based on a range of prices between $3.86 and $4.13. 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.

	/s/ Steven B. Binder	08/10/2026
	** 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)