ARK Investment Management LLC and Catherine D. Wood filed Amendment No. 12 to Schedule 13G with the SEC on November 13, 2026, disclosing aggregate beneficial ownership of 20,508,004 shares of Cerus Corporation common stock as of September 30, 2026.

Key Highlights

  • Aggregate beneficial ownership: ARK Investment Management LLC and Catherine D. Wood each reported beneficial ownership of 20,508,004 shares of Cerus Corp common stock.
  • Percent of class: The 20,508,004 shares represent 10.18% of Cerus Corp's outstanding common stock, according to the filing.
  • ARK sole dispositive power: ARK Investment Management LLC holds sole power to dispose of all 20,508,004 shares reported.
  • ARK sole voting power: ARK holds sole voting power over 19,250,797 shares, with shared voting power over an additional 237,139 shares.
  • Notable client interest: The filing states that ARK Innovation ETF, a series of a Delaware statutory trust, is the only ARK client with an interest in the reported securities exceeding 5 percent.
  • Event date: The date of the event requiring this filing is September 30, 2026.

ARK and Wood Report 10.18% Stake in Cerus Corp as of September 30, 2026

According to the filing, ARK Investment Management LLC, organized in Delaware, and Catherine D. Wood, a United States citizen and ARK's Chief Executive Officer and Chief Investment Officer, jointly filed Amendment No. 12 to Schedule 13G regarding their holdings in Cerus Corp (CUSIP 157085101). Both filers share the same address at 200 Central Avenue, St. Petersburg, FL 33701. The event triggering the filing occurred on September 30, 2026, and the statement was signed and dated November 13, 2026.

The filing reports that ARK holds sole voting power over 19,250,797 shares and shared voting power over 237,139 shares, for a total voting interest of 19,487,936 shares with shared voting attributed to Catherine D. Wood. ARK holds sole dispositive power over the full 20,508,004 shares, while Catherine D. Wood reports shared dispositive power over that same aggregate amount and zero sole dispositive power. The aggregate beneficial ownership reported by both persons is 20,508,004 shares, equal to 10.18% of the class.

The filing discloses under Item 6 that "no client of ARK Investment Management LLC currently has an interest in the securities reported herein in excess of 5 percent except ARK Innovation ETF, a series of a Delaware statutory trust." The filers certify 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."

What Was Disclosed

ARK Investment Management LLC and Catherine D. Wood filed Amendment No. 12 to Schedule 13G disclosing aggregate beneficial ownership of 20,508,004 shares, or 10.18%, of Cerus Corp common stock as of September 30, 2026, with ARK holding full sole dispositive power over those shares.