FMR LLC and Abigail P. Johnson filed an amended beneficial ownership statement with the SEC on November 4, 2026, disclosing aggregate holdings of 8,615,432 shares of common stock in Climb Bio Inc., representing 15.0% of the class as of September 30, 2026.

Key Highlights

  • Aggregate beneficial ownership: FMR LLC and Abigail P. Johnson each reported beneficial ownership of 8,615,432 shares of Climb Bio Inc. common stock (CUSIP 28658R106).
  • Percent of class: The 8,615,432 shares represent 15.0% of Climb Bio's outstanding common stock.
  • Sole voting power for FMR LLC: FMR LLC reported sole voting power over 8,615,203 shares, with 0 shares subject to shared voting power.
  • Sole dispositive power: FMR LLC holds sole dispositive power over all 8,615,432 shares; Abigail P. Johnson also reported sole dispositive power over the same 8,615,432 shares.
  • Event date: The triggering event for the amendment is dated September 30, 2026.
  • Third-party interests: According to the filing, one or more other persons hold the right to receive dividends or sale proceeds from the common stock, though no single other person's interest exceeds 5% of the total outstanding shares.

FMR LLC's Amended Position in Climb Bio Inc.

According to the amended filing, FMR LLC, a Delaware-incorporated holding company based at 245 Summer Street, Boston, Massachusetts, disclosed its beneficial ownership position in Climb Bio Inc., a biopharmaceutical company headquartered at 20 William Street, Suite 145, Wellesley Hills, Massachusetts 02481. The filing was submitted as Amendment No. 1 and reflects ownership as of the September 30, 2026 event date. FMR LLC is identified in the filing as a parent holding company or control person, and the filing references an attached Exhibit 99 identifying the relevant subsidiaries through which the shares are held.

The filing also covers Abigail P. Johnson, who reported 0 shares under sole or shared voting power but disclosed sole dispositive power over the same 8,615,432 shares. Both FMR LLC and Johnson certified, as required, that the securities "were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer." The statement was signed by Stephanie J. Brown under separate powers of attorney granted by FMR LLC and Abigail P. Johnson, effective January 3, 2023 and January 26, 2023, respectively.

The filing notes that no single outside party holds more than 5% of Climb Bio's total outstanding common stock through any right to receive dividends or sale proceeds, though such interests exist in the aggregate. Climb Bio Inc. trades on NASDAQ under the symbol CLYM, as reflected in the filing's issuer identification.

What Was Disclosed

FMR LLC and Abigail P. Johnson jointly filed an amended beneficial ownership report disclosing aggregate holdings of 8,615,432 shares, equal to 15.0% of Climb Bio Inc. common stock, based on a September 30, 2026 event date.