Form 4: MannKind Executive Sells Shares After Option Exercise

David Thomson, EVP General Counsel & Secretary of MannKind Corp, exercised stock options and subsequently sold 147,780 shares under a Rule 10b5-1 plan.

Summary

• David Thomson, EVP General Counsel & Secretary of MannKind Corp (MNKD), engaged in transactions involving the company's common stock on December 2, 2025.
• Thomson exercised employee stock options to acquire a total of 147,780 shares.
• These options were exercised at prices of $4.55 for 60,000 shares and $4.60 for 87,780 shares.
• Immediately following the exercise, Thomson sold all 147,780 shares of common stock.
• The shares were sold at a weighted average price of $5.57, with prices ranging from $5.50 to $5.63.
• The transactions were conducted pursuant to a Rule 10b5-1 plan established on August 27, 2025.
• Following these transactions, Thomson's direct beneficial ownership of common stock remained at 841,719 shares, indicating a 'cashless exercise' or 'exercise and sell' strategy where the number of shares acquired equals the number sold.
• All derivative securities (employee stock options) involved in these transactions are now fully exercised and no longer beneficially owned.

Sentiment

Score: 5

Explanation: Neutral for the company as it's a routine insider transaction under a 10b5-1 plan, indicating a pre-planned event rather than a reaction to new company news. Positive for the insider due to realized gains.

Positives

• The executive realized a profit from exercising stock options and selling the shares at a higher market price.
• The transaction was conducted under a pre-arranged Rule 10b5-1 plan, indicating a planned rather than opportunistic sale.

Negatives

• The executive reduced their direct holdings of common stock by selling all shares acquired through option exercise.

Future Outlook

This Form 4 filing does not contain any forward-looking statements or guidance regarding the company's future performance or outlook.

Management Comments

• The weighted average sales price of the reported transaction was $5.57 based on a range of prices between $5.50 and $5.63.
• 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.

Industry Context

This filing reports an individual executive's stock transactions and does not provide information relevant to broader industry trends or competitive analysis.

Corporate Governance

Stakeholder Impact

• Shareholders: May view the executive's sale as a routine liquidity event under a pre-arranged plan, potentially having a minor impact on sentiment. The net beneficial ownership of common stock held directly by the executive did not change as a result of these transactions.
• Executive (David Thomson): Realized a financial gain from the exercise of stock options and subsequent sale of shares.

Next Steps

• The company or reporting person may be required to provide full information regarding the number of shares sold at each separate price upon request by the SEC staff, the Issuer, or any security holder of the Issuer.

Key Dates

Keywords

MannKind Corp, MNKD, Insider Trading, Form 4, Stock Options, Executive Compensation, Rule 10b5-1, Share Sale, David Thomson