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CYTEK BIOSCIENCES INC (CTKB)

Name: CYTEK BIOSCIENCES INC (CTKB) — Institutional ownership, SEC filings and insider activity
Creator: Sightfile
License: https://www.sec.gov/privacy#dissemination

Institutional ownership, SEC filings and insider activity

Sector: Healthcare & Pharma · SEC CIK 0001831915 · EDGAR filings · Updated 2026-07-15

CYTEK BIOSCIENCES INC (CTKB) has reported institutional ownership of 65.9%, with 165 institutional managers holding positions valued at $371.8M per the latest 13F reporting period.

Institutional ownership

65.9%

Institutional managers

165

Reported 13F value

$371.8M

Insider activity

149 trans.

$97.3K net buying

Latest updates

2026-07-15 — Current report (8-K) filed
2026-07-08 — SCHEDULE 13G/A filed
2026-06-30 — Initial insider ownership filed (Form 3)
2026-06-25 — Current report (8-K) filed
2026-06-16 — Insider transaction reported (Form 4)
2026-06-16 — Current report (8-K) filed

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, CYTEK BIOSCIENCES INC has 165 institutional holders and institutional ownership of 65.9%.

Insider activity

Insiders reported 149 transactions (1 buys, 0 sells) across 11 reporting insiders, with a net reported value of $97.3K.

Related companies

ABSCI CORPORATION (ABSI) · ASSEMBLY BIOSCIENCES INC (ASMB) · X4 PHARMACEUTICALS INC (XFOR) · NATURES SUNSHINE PRODS INC (NATR) · SHATTUCK LABS INC (STTK) · EMERGENT BIOSOLUTIONS INC (EBS)

See full history, cross-references and alerts on Sightfile

Sightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-15.