BlackRock, Inc. filed a Schedule 13G with the SEC on October 27, 2026, disclosing beneficial ownership of 5,339,458 shares of Shattuck Labs, Inc. common stock as of September 30, 2026.

Key Highlights

  • Aggregate beneficial ownership: BlackRock, Inc. reported beneficial ownership of 5,339,458 shares of Shattuck Labs, Inc. common stock.
  • Percent of class: The reported stake represents 5.3% of Shattuck Labs' outstanding common shares.
  • Sole voting power: BlackRock reported sole voting power over 5,221,737 shares, with 0 shares subject to shared voting power.
  • Sole dispositive power: BlackRock reported sole dispositive power over all 5,339,458 shares, with 0 shares subject to shared dispositive power.
  • Reporting person type: BlackRock is classified as a parent holding company (type "HC") incorporated in Delaware.
  • Event date: The filing was triggered by an event dated September 30, 2026, and signed by Managing Director Spencer Fleming on October 27, 2026.

BlackRock's Reported Position in Shattuck Labs Common Stock

According to the Schedule 13G filing, BlackRock, Inc., headquartered at 50 Hudson Yards, New York, NY 10001, disclosed beneficial ownership of 5,339,458 shares of common stock (CUSIP 82024L103) of Shattuck Labs, Inc., whose principal executive offices are located at 500 W. 5th Street, Suite 1200, Austin, TX 78701. The filing states that the position equals 5.3% of the issuer's outstanding class of common shares.

The filing notes that the reported securities are beneficially owned, or deemed to be beneficially owned, by certain business units of BlackRock, Inc. and its subsidiaries and affiliates, described in the filing as the "Reporting Business Units," consistent with SEC Release No. 34-39538 (January 12, 1998). The filing specifies that it "does not include securities, if any, beneficially owned by other business units whose beneficial ownership of securities are disaggregated from that of the Reporting Business Units in accordance with such release."

Regarding the interest of third parties, the filing states: "Various persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the common stock of SHATTUCK LABS, INC." and that "No one person's interest in the common stock of SHATTUCK LABS, INC. is more than five percent of the total outstanding common shares." The filing's certification states the securities "were acquired and are held in the ordinary course of business" and not for the purpose of changing or influencing control of the issuer. Subsidiary information is referenced in Exhibit 99 attached to the filing.

What Was Disclosed

BlackRock, Inc. filed a Schedule 13G reporting beneficial ownership of 5,339,458 shares, or 5.3%, of Shattuck Labs, Inc. common stock as of September 30, 2026, with sole voting power over 5,221,737 shares and sole dispositive power over all reported shares.