Form 4: Disc Medicine CEO Exercises Stock Options

Disc Medicine, Inc. CEO John D. Quisel exercised stock options to acquire 12,300 shares of common stock at $1.01 per share.

Summary

• John D. Quisel, Chief Executive Officer and Director of Disc Medicine, Inc. (IRON), engaged in an insider transaction.
• On December 19, 2025, Quisel exercised stock options to acquire 12,300 shares of common stock.
• The exercise price for these shares was $1.01 per share.
• Following this transaction, Quisel directly beneficially owns 184,128 shares of common stock.
• The exercised options were fully vested and exercisable as of the transaction date.
• After the exercise, Quisel directly beneficially owns 186,120 derivative securities (stock options).

Sentiment

Score: 6

Explanation: The filing reports a routine insider transaction where the CEO exercised vested stock options, increasing direct share ownership. This is generally viewed as neutral to slightly positive, indicating continued insider alignment with shareholder interests.

Positives

• The CEO's exercise of stock options increases his direct ownership in the company, potentially signaling confidence in future performance.
• The exercise price of $1.01 per share is significantly lower than current market prices, indicating a substantial in-the-money value for the options.

Future Outlook

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

Industry Context

This is a routine insider transaction and does not provide specific insights into broader industry trends or competitive landscape.

Stakeholder Impact

• Shareholders may view the increase in direct insider ownership as a positive signal of management's commitment and belief in the company's value.

Key Dates

Keywords

Disc Medicine, IRON, John D. Quisel, CEO, Director, Stock Option Exercise, Insider Transaction, Equity Acquisition, Common Stock