Millennium Management Reports New 5.2% Stake in Cytek Biosciences, Inc. (CTKB)

On April 9, 2026, Millennium Management LLC, Millennium Group Management LLC, and Israel A. Englander filed a Schedule 13G disclosing a new passive ownership stake in Cytek Biosciences, Inc. (CTKB). The filers reported beneficial ownership of 6,638,827 shares of Common Stock, representing 5.2% of the company's outstanding shares. This filing marks an increase from a previously reported 0.0% position, crossing the 5% regulatory threshold on the event date of April 2, 2026. The shares are held by various entities under the shared voting and investment control of Millennium Management, its managing member Millennium Group Management, and Israel Englander as the sole voting trustee. The filing was made under Rule 13d-1(c), certifying that the securities were acquired in the ordinary course of business and not with the intent to influence or change the control of the issuer. The principal executive offices of Cytek Biosciences are located in Fremont, California.