Institutional shares held 72.5 Million
13.2K calls
31.2K puts
Total value of holdings $395M
$71K calls
$170K puts
Market Cap $734M
134,627,008 Shares Out.
Institutional ownership 53.83%
# of Institutions 121


Latest Institutional Activity in CTKB

Top Purchases

Q1 2024
Wellington Management Group LLP Shares Held: 1.35M ($7.38M)
Q1 2024
Divisadero Street Capital Management, LP Shares Held: 488K ($2.66M)
Q1 2024
Voloridge Investment Management, LLC Shares Held: 508K ($2.77M)
Q1 2024
Dimensional Fund Advisors LP Shares Held: 1.38M ($7.5M)
Q1 2024
First Trust Advisors LP Shares Held: 244K ($1.33M)

Top Sells

Q1 2024
Black Rock Inc. Shares Held: 17.4M ($95M)
Q1 2024
Jane Street Group, LLC Shares Held: 46.1K ($251K)
Q1 2024
Barclays PLC Shares Held: 107K ($581K)
Q1 2024
Jpmorgan Chase & CO Shares Held: 85.4K ($465K)
Q1 2024
Northern Trust Corp Shares Held: 1.13M ($6.16M)

About CTKB

Cytek Biosciences, Inc., a cell analysis solutions company, provides cell analysis tools that facilitates scientific advances in biomedical research and clinical applications. It offers aurora and northern lights systems, which are spectrum flow cytometers that delivers cell analysis by utilizing the fluorescence signatures from multiple lasers to distinguish fluorescent tags on single cells; and aurora cell sorter system, which leverages full spectrum profiling technology to further broaden potential applications across cell analysis. The company also provides reagents and kits, including cFluor reagents, which are fluorochrome conjugated antibodies used to identify cells of interest for analysis on its instruments, as well as 25-color immunoprofiling assay that provides turnkey solutions for identifying major human immune subpopulations for TBNK cells, monocytes, dendritic cells, and basophils. In addition, it offers automated micro-sampling system and automated sample loader system, which are automated plate loaders to integrate seamlessly into the aurora and northern lights systems; SpectroFlo software that provides intuitive workflow from quality control to data analysis for aurora and northern lights systems; and customer support tools. The company serves pharmaceutical and biopharma companies, academic research centers, and clinical research organizations. It distributes its products through direct sales force and support organizations in North America, Europe, China, and the Asia-Pacific region; and through distributors or sales agents in European, Latin American, the Middle Eastern, and the Asia-Pacific countries. The company was formerly known as Cytoville, Inc. and changed its name to Cytek Biosciences, Inc. in August 2015. Cytek Biosciences, Inc. was founded in 1992 and is headquartered in Fremont, California.


Insider Transactions at CTKB

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
227K Shares
From 9 Insiders
Exercise of conversion of derivative security 224K shares
Open market or private sale 3K shares
Sell / Disposition
4.39M Shares
From 13 Insiders
Payment of exercise price or tax liability 76.2K shares
Bona fide gift 3.99M shares
Open market or private sale 320K shares

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