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Who owns Cytek Biosciences (CTKB) stock

144 funds reported Cytek Biosciences (CTKB) shares in their latest 13F filings, worth $394M in all. The largest holder is BlackRock ($42.4M). Last quarter 66 funds added to their stakes and 88 cut them.

Largest holders of CTKB (13F)Largest holders of CTKB (13F)BlackRock$42.4MMillennium Management LLC$41.4MVanguard Group$37.8MBoston Partners$33.9MHhlr Advisors$29.5MTopline Capital Management, LLC$27.8MVanguard Capital Management LLC$21.9MGeode Capital Management, LLC$13.6MDimensional Fund Advisors LP$11.6MState Street$11.4M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock9,578,643$42.4Mdecrease2026-06-30
Millennium Management LLC9,338,010$41.4Mincrease2026-06-30
Vanguard Group7,475,477$37.8Mincrease2025-12-31
Boston Partners7,660,943$33.9Mincrease2026-06-30
Hhlr Advisors6,657,030$29.5Munchanged2026-06-30
Topline Capital Management, LLC6,283,450$27.8Mdecrease2026-06-30
Vanguard Capital Management LLC4,939,597$21.9Mincrease2026-06-30
Geode Capital Management, LLC3,059,573$13.6Mincrease2026-06-30
Dimensional Fund Advisors LP2,616,257$11.6Mdecrease2026-06-30
State Street2,566,121$11.4Mdecrease2026-06-30
Goldman Sachs Group2,167,515$9.6Mdecrease2026-06-30
Royce & Associates LP2,081,579$9.2Mincrease2026-06-30
Russell Investments Group1,511,315$6.7Mincrease2026-06-30
Acadian Asset Management LLC1,376,048$6.1Mincrease2026-06-30
Bank of America1,315,332$5.8Mincrease2026-06-30

Cytek Biosciences' latest quarter

Cytek Biosciences, Q3 2026: revenue $53.2M (+2% year over year), operating margin -15.8%, net loss $6.1M, operating cash flow −$4.5M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most CTKB stock?

By the latest 13F filings: BlackRock ($42.4M); Millennium Management LLC ($41.4M); Vanguard Group ($37.8M); Boston Partners ($33.9M); Hhlr Advisors ($29.5M).

What is the short interest in CTKB?

4,409,745 shares were sold short at the 2026-10-15 settlement, -15.45% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.