Form 4: Insmed Inc. CEO William Lewis Sells Shares to Cover Tax Obligations

Insmed Inc. CEO William Lewis sold shares of common stock on May 13th and 14th, 2025, to satisfy tax withholding obligations and broker fees related to the vesting of Restricted Stock Units.

Summary

• William Lewis, the Chair and CEO of Insmed Inc., sold shares of the company's common stock on May 13th and 14th, 2025.
• The sales were executed to cover tax withholding obligations upon the vesting of Restricted Stock Units and to pay related broker fees.
• On May 13th, 2025, Lewis sold 9,743 shares at a weighted average price of $66.4, with prices ranging from $66.02 to $67.00 per share.
• An additional 7,699 shares were sold on May 13th, 2025, at a weighted average price of $67.7, with prices ranging from $67.11 to $67.81 per share.
• On May 14th, 2025, Lewis sold 3,771 shares at $65.61 per share.
• Following these transactions, Lewis directly owns 312,973 shares of Insmed Inc. common stock.
• Lewis also indirectly owns 233,924 shares through the Katie Procter Dynasty Trust and 50,500 shares through the William Lewis Family Legacy Trust.

Sentiment

Score: 5

Explanation: The document describes routine stock sales to cover tax obligations, which is neither particularly positive nor negative. It's a neutral event in the context of executive compensation.

Industry Context

Sales of shares by company executives are a common occurrence, often related to compensation and tax planning. The market typically views these sales in the context of the executive's overall holdings and the company's performance.

Stakeholder Impact

• The stock sales could have a minor, temporary impact on the stock price, but are unlikely to significantly affect long-term shareholders.
• Employees holding stock options or RSUs may be interested in the stock price fluctuations.

Key Dates

Keywords

Insmed Inc, William Lewis, stock sale, Form 4, tax obligations, restricted stock units, beneficial ownership