Cytek Biosciences, Inc.

CTKB

Exchange: Nasdaq
Industry: Laboratory Analytical Instruments
SEC CIK: 0001831915

SEC filings (opens in a new tab)

No open-market purchases or sales by Cytek Biosciences, Inc. insiders were filed in the last 90 days; 154 institutions reported holding it in 13F filings for Q2 2026, worth $361.0M in total; HHLR Advisors (Hillhouse) is the only superinvestor holding it.

Q1 2024 vs. Q4 2023

How the institutions holding Cytek Biosciences, Inc. changed between Q4 2023 and Q1 2024.

All holders in Q1 2024 All holders in Q4 2023

13F holders of CTKB: Q4 2023 compared with Q1 2024
Measure	Q4 2023	Q1 2024	Change
Holders	105	125	+20
Shares	78.9M	80.6M	+1.66M (+2.1%)
Value	$719.9M	$540.9M	−$179.0M (−24.9%)

New holders (24)

Institutions that held Cytek Biosciences, Inc. at the end of Q1 2024 but not at the end of Q4 2023.

Institutions new to CTKB in Q1 2024
Institution	Shares	Value	% of portfolio
Divisadero Street Capital Management, LP	487,550	$3.27M	0.77%
First Trust Advisors LP	244,289	$1.64M	0.00%
Sherbrooke Park Advisers LLC	85,834	$575.9K	0.11%
Marshall Wace, LLP	68,591	$460.2K	0.00%
Versor Investments LP	46,900	$314.7K	0.06%
Millennium Management LLC	26,645	$178.8K	0.00%
Cornerstone Investment Partners, LLC	25,454	$170.8K	0.01%
XTX Topco Ltd	19,844	$133.2K	0.02%
Dynamic Technology Lab Private Ltd	16,946	$114.0K	0.01%
Squarepoint Ops LLC	16,822	$112.9K	0.00%
Prelude Capital Management, LLC	15,800	$106.0K	0.01%
Graham Capital Management, L.P.	15,379	$103.2K	0.00%
Quadrature Capital Ltd	15,260	$102.2K	0.00%
Oxford Asset Management LLP	13,726	$92.1K	0.10%
HSBC Holdings PLC	13,460	$90.3K	0.00%
Two Sigma Investments, LP	13,211	$88.6K	0.00%
Dark Forest Capital Management LP	11,387	$76.4K	0.01%
Royce & Associates LP	11,350	$76.2K	0.00%
Quest Partners LLC	9,708	$65.1K	0.01%
Catalyst Funds Management Pty Ltd	300	$2.01K	0.00%
CIBC Private Wealth Group, LLC	154	$1.03K	0.00%
Umb Bank N A	52	$349	0.00%
Nelson, Van Denburg & Campbell Wealth Management Group, LLC	24	$161	0.00%
Rothschild Investment LLC	20	$134	0.00%

Sold out (4)

Institutions that held Cytek Biosciences, Inc. at the end of Q4 2023 and filed for Q1 2024 without it.

Institutions that sold out of CTKB in Q1 2024
Institution	Shares, Q4 2023	Value, Q4 2023
Zevenbergen Capital Investments LLC	42,300	$385.8K
EntryPoint Capital, LLC	9,567	$87.3K
Valley National Advisers Inc	120	$1.00K
Allworth Financial LP	41	$374