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.

Q2 2022 vs. Q1 2022

How the institutions holding Cytek Biosciences, Inc. changed between Q1 2022 and Q2 2022.

All holders in Q2 2022 All holders in Q1 2022

13F holders of CTKB: Q1 2022 compared with Q2 2022
Measure	Q1 2022	Of which not filed for Q2 2022	Q2 2022	Change
Holders	74	2	85	+13
Shares	47.7M	52.3K	52.9M	+5.21M (+10.9%)
Value	$514.5M	$564.0K	$567.8M	+$53.8M (+10.5%)

2 institutions that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so the changes leave them out.

New holders (27)

Institutions that held Cytek Biosciences, Inc. at the end of Q2 2022 but not at the end of Q1 2022.

Institutions new to CTKB in Q2 2022
Institution	Shares	Value	% of portfolio
Blue Water Life Science Advisors, LLC	2,100,000	$22.5M	12.24%
RTW Investments, LP	916,838	$9.84M	0.25%
Ameriprise Financial Inc	276,202	$2.96M	0.00%
Swiss National Bank	158,100	$1.70M	0.00%
Gsa Capital Partners LLP	73,743	$791.0K	0.12%
UBS Asset Management Americas Inc	63,957	$686.3K	0.00%
Marshall Wace, LLP	54,096	$582.0K	0.00%
Credit Suisse AG	45,511	$489.0K	0.00%
Voya Investment Management LLC	42,877	$460.0K	0.00%
Man Group plc	–	$440.0K	0.00%
Mirae Asset Global Investments Co., Ltd.	32,960	$354.0K	0.00%
SG Americas Securities, LLC	30,790	$330.0K	0.00%
Allianz Asset Management GmbH	30,415	$326.0K	0.00%
Algert Global LLC	21,270	$228.0K	0.02%
Cornerstone Investment Partners, LLC	18,440	$198.0K	0.01%
Arizona State Retirement System	18,190	$195.0K	0.00%
State Board of Administration of Florida Retirement System	16,320	$175.0K	0.00%
State of Wisconsin Investment Board	16,191	$174.0K	0.00%
Price T Rowe Associates Inc	10,895	$117.0K	0.00%
Teacher Retirement System of Texas	10,603	$114.0K	0.00%
Zurcher Kantonalbank (Zurich Cantonalbank)	8,967	$96.0K	0.00%
Lazard Asset Management LLC	6,555	$70.0K	0.00%
Nisa Investment Advisors, LLC	1,700	$18.0K	0.00%
UBS Group AG	63	$1.00K	0.00%
Ellevest, Inc.	112	$1.00K	0.00%
Crewe Advisors LLC	77	$1.00K	0.00%
Advisor Group Holdings, Inc.	20	$0	0.00%

Sold out (14)

Institutions that held Cytek Biosciences, Inc. at the end of Q1 2022 and filed for Q2 2022 without it.

Institutions that sold out of CTKB in Q2 2022
Institution	Shares, Q1 2022	Value, Q1 2022
Two Sigma Investments, LP	524,421	$5.65M
Soleus Capital Management, L.P.	180,000	$1.94M
Healthcare of Ontario Pension Plan Trust Fund	126,800	$1.37M
Walleye Capital LLC	97,852	$1.05M
Two Sigma Advisers, LP	95,000	$1.02M
Wellington Management Group LLP	41,617	$449.0K
Paloma Partners Management Co	40,751	$439.0K
Jump Financial, LLC	34,854	$376.0K
Engineers Gate Manager LP	32,799	$354.0K
ExodusPoint Capital Management, LP	27,049	$292.0K
Susquehanna International Group, LLP	23,590	$254.0K
Graham Capital Management, L.P.	19,884	$214.0K
Point72 Hong Kong Ltd	12,250	$132.0K
Tradewinds Capital Management, LLC	2	$0

Not filed for Q2 2022 yet (2)

Institutions that held Cytek Biosciences, Inc. at the end of Q1 2022 and haven't filed a 13F for Q2 2022. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding CTKB in Q1 2022 that haven't filed for Q2 2022
Institution	Shares, Q1 2022	Value, Q1 2022
Parametric Portfolio Associates LLC	37,111	$400.0K
Amalgamated Financial Corp.	15,225	$164.0K