Institutional shares held 72.6 Million
1K calls
0 puts
Total value of holdings $265M
$3K calls
$0 puts
Market Cap $498M
134,627,008 Shares Out.
Institutional ownership 53.89%
# of Institutions 152


Latest Institutional Activity in CTKB

Top Purchases

Q1 2025
Sg Americas Securities, LLC Shares Held: 26.3K ($97.2K)
Q1 2025
Summit Global Investments Shares Held: 54.9K ($203K)
Q1 2025
Wealth Enhancement Advisory Services, LLC Shares Held: 15.7K ($58.1K)
Q1 2025
Farther Finance Advisors, LLC Shares Held: 3.24K ($12K)
Q1 2025
Rhumbline Advisers Shares Held: 296K ($1.1M)

Top Sells

Q1 2025
Gamma Investing LLC Shares Held: 718 ($2.66K)
Q1 2025
State Of Alaska, Department Of Revenue Shares Held: 57.8K ($214K)
Q1 2025
North Crest Asset Manangement, LLC Shares Held: 30.8K ($114K)
Q1 2025
Fifth Third Bancorp Shares Held: 837 ($3.1K)
Q1 2025
Yousif Capital Management, LLC Shares Held: 31.2K ($115K)

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
335K Shares
From 7 Insiders
Exercise of conversion of derivative security 335K shares
Sell / Disposition
298K Shares
From 7 Insiders
Payment of exercise price or tax liability 98.4K shares
Bona fide gift 200K shares

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