T. Rowe Price Investment Management Increases Stake in Personalis, Inc. to 4.5%

On April 8, 2026, T. Rowe Price Investment Management, Inc. filed a Schedule 13G/A with the SEC, reporting an increased position in Personalis, Inc. (PSNL). As of the event date on March 31, 2026, the firm beneficially owns 4,758,091 shares of common stock, representing 4.5% of the company. This is a significant increase from the previously reported 1,938,037 shares. The filing indicates that T. Rowe Price Investment Management, Inc. holds sole voting and dispositive power over all 4,758,091 shares. The securities were acquired in the ordinary course of business and not for the purpose of changing or influencing the control of the issuer. Despite the increase in share count, the reporting person has checked the box indicating that they now own 5% or less of the class of securities, which is consistent with the reported 4.5% ownership stake. The firm is a registered investment adviser based in Baltimore, Maryland.