ARK Investment Management LLC and Catherine D. Wood filed an amended beneficial ownership statement with the SEC on November 6, 2026, disclosing a combined holding of 8,607,836 shares of Tempus AI, Inc. common stock, representing 4.91 percent of the class as of October 31, 2026.

Key Highlights

  • Combined beneficial ownership: ARK Investment Management LLC and Catherine D. Wood together beneficially own 8,607,836 shares of Tempus AI, Inc. common stock.
  • Percent of class: The aggregate position represents 4.91% of the outstanding common stock, placing ownership at 5 percent or less of the class.
  • ARK sole voting power: ARK holds sole voting power over 8,161,270 shares, with shared voting power over an additional 124,106 shares.
  • Catherine D. Wood voting: Wood holds shared voting power over 8,285,376 shares and shared dispositive power over all 8,607,836 shares, with no sole voting or dispositive power reported.
  • Triggering event date: The event requiring this filing occurred on October 31, 2026, according to the filing.
  • Filing signatories: The statement was signed by Kathleen Fontano, Chief Compliance Officer of ARK, and Catherine D. Wood, in her capacity as Chief Executive Officer and Chief Investment Officer, both dated November 6, 2026.

ARK and Wood Disclose Ownership Below 5 Percent in Tempus AI

According to the amended filing, ARK Investment Management LLC, a Delaware-organized investment adviser, and Catherine D. Wood jointly reported beneficial ownership of 8,607,836 shares of common stock in Tempus AI, Inc. (NASDAQ:TEM), an artificial intelligence company in the healthcare and life sciences sector headquartered at 600 West Chicago Avenue, Suite 510, Chicago, IL 60654. The filing identifies ARK as the reporting entity with sole dispositive power over all 8,607,836 shares, while Wood holds shared dispositive power over the same aggregate amount.

The filing notes under Item 5 that the reported position constitutes "ownership of 5 percent or less of a class," reflecting that the 4.91 percent figure falls below the 5 percent threshold. ARK is classified as an investment adviser (type "IA") in the filing, while Wood is classified as a holding company and individual (type "HC, IN"). Both parties certified, as stated in the filing, 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 amended statement covers common stock with CUSIP number 88023B103. ARK's shared voting power is reported as 124,106 shares, and Wood's shared voting power covers 8,285,376 shares, with both figures contributing to the same aggregate beneficial ownership total. No shared dispositive power is attributed to ARK, and no sole voting or dispositive power is attributed to Wood individually, according to the filing.

What Was Disclosed

ARK Investment Management LLC and Catherine D. Wood disclosed, in an amended beneficial ownership filing dated November 6, 2026, that they jointly hold 8,607,836 shares of Tempus AI, Inc. common stock, equal to 4.91 percent of the class, as of October 31, 2026.