CTKB — CYTEK BIOSCIENCES INC

Ownership history in Boston Partners  ·  2 quarters on record

This page tracks every 13F SEC filing in which Boston Partners reported a position in CYTEK BIOSCIENCES INC (CTKB). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.03% (2025 Q4)
Avg. % of fund
0.01%
First filed
2025 Q3
Last filed
2025 Q4
Quarters held
2
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 ADDED 5,008,309 +4,971,126 +13369.4% 0.03% $25.3M $5.05
2025 Q3 INITIATED 37,183 — — 0.00% $129K $3.47
% of Fund (quarterly)    CTKB price (monthly, adj. close)

Other funds also holding CTKB

As of 2025 Q4 — sorted by position size

Topline Capital Management, LLC 3.4% HHLR ADVISORS, LTD. 3Y 7Y 1.08% BROWN CAPITAL MANAGEMENT LLC 3Y 7Y 0.86% Numerai GP LLC 3Y 0.11% ROYCE & ASSOCIATES LP 3Y 7Y 0.09% Dynamic Technology Lab Private Ltd 3Y 7Y 0.05% PDT Partners, LLC 3Y 7Y 0.03% AXQ CAPITAL, LP 3Y 0.02% MILLENNIUM MANAGEMENT LLC 3Y 7Y 0.01% HRT FINANCIAL LP 3Y 7Y 0.01%
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