§ LIFE SCIENCES TOOLS & SERVICES
USD · Life Sciences Tools & ServicesCTKB
CYTEK BIOSCIENCES INC
USDSector · Life Sciences Tools & Services
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
77 increased/new, 64 decreased/exited (13F)
AC 13F Analysis
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| BlackRock, Inc. | 17.0M | 0.0% | −1% |
| Topline Capital Management, LLC | 7.1M | 5.1% | −5% |
| HHLR ADVISORS, LTD. | 6.7M | 1.7% | ±0% |
| Millennium Management | 6.3M | 0.0% | +32% |
| Boston Partners | 5.8M | 0.0% | +16% |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.8M | n/a | n/a |
◇ AC INTELLIGENCE
Top institutional owners for CTKB as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER30.1% · 0 holders
OTHER27.3% · 95 holders
PASSIVE / INDEX17.0% · 9 holders
DEALER / BANK9.1% · 21 holders
TACTICAL / MACRO5.5% · 3 holders
DEEP VALUE4.5% · 1 holder
QUALITY / COMPOUNDER4.3% · 13 holders
INCOME / DEFENSIVE1.2% · 16 holders
SYSTEMATIC / QUANT0.8% · 6 holders
ACTIVIST0.2% · 1 holder
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for CTKB in the last 180 days.
§ 08 · COVERAGE · OUR RECENT NOTES
No notes mention CTKB yet.