Atlas Venture Fund X, LP's Sale of Disc Medicine, Inc. Common Stock

Atlas Venture Fund X, LP has filed a Form 144 with the SEC, indicating its intention to sell 1,425 shares of Disc Medicine, Inc. common stock. The shares were acquired on May 1, 2020, through a private placement. The filing also details the sale of a significant number of shares over the past three months, with transactions occurring on multiple dates between July 18, 2025, and October 15, 2025. The aggregate market value of the shares to be sold is approximately $109,696.50. The sales were facilitated by Merrill Lynch, and the shares are listed on the Nasdaq. This filing highlights the ongoing divestment of Atlas Venture Fund X, LP's holdings in Disc Medicine, Inc.