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Cytek Biosciences, Inc. (CTKB) research

Cytek Biosciences, Inc.
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Life Sciences Tools & Services
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$4.62
As of
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You are seeing 5 of 26 signals recorded on CTKB since 2026-05-16.

The five above all landed on 2026-09-06. The other 21 were recorded on 5 other days. 15 of the 26 are institutional flow rows, which arrive in batches on filing days.

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Largest reported share positions in CTKB (2026Q2)

Manager / securityMarket value% portfolioQoQ
MILLENNIUM MANAGEMENT LLCCUSIP 23285D109 · 2026Q2$41.4M0.01%,
CITADEL ADVISORS LLCCUSIP 23285D109 · 2026Q2$3.2M0.00%,
D. E. Shaw & Co., Inc.CUSIP 23285D109 · 2026Q2$3M0.00%,
RENAISSANCE TECHNOLOGIES LLCCUSIP 23285D109 · 2026Q2$2.9M0.00%,
Point72 Asset Management, L.P.CUSIP 23285D109 · 2026Q2$1.9M0.00%,
TWO SIGMA INVESTMENTS, LPCUSIP 23285D109 · 2026Q2$745K0.00%,

Quarterly SEC Form 13F disclosures from the managers Kresmion tracks, not a complete ownership ranking. Non-option holdings only; reported put and call positions are excluded. Different securities are labeled by CUSIP. Values are reporting-period snapshots, not current position values. Filings can arrive up to 45 days after quarter-end.

Recent SEC filings, CTKB

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