CTKB Cytek Biosciences, Inc.

NEUTRAL Impact: 2/10 3
Horizon immediate Filed Jun 12, 2026 Processed 2d 11h ago SEC 0001181190-26-000004
Form 3 — initial insider ownership statement

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Executive Summary

Glenn P. Muir filed a Form 3 initial statement of beneficial ownership with Cytek Biosciences, Inc., indicating he has become a director or officer of the company. The filing is a routine administrative requirement for new insiders and contains no financial data or trading activity.

Actionable Insight

This is a standard Form 3 filing with no trading or financial data. Monitor future Form 4 filings for any open-market purchases or sales by Muir, which would provide actionable signals. No immediate trading action warranted.

Key Facts

  • Glenn P. Muir filed a Form 3 initial statement of beneficial ownership on June 12, 2026, with a period of report of June 10, 2026.
  • The filing includes a Power of Attorney authorizing multiple individuals to execute Section 16 filings on Muir's behalf.
  • No beneficial ownership amounts or securities transactions are disclosed in the filing.

Financial Impact

No financial impact; the filing is a routine insider onboarding form with no monetary figures.

Risk Factors

  • No material risks identified from this filing alone.

Market Snapshot

Exchange
Nasdaq
Sector
Laboratory Analytical Instruments
Analyst Consensus
70% bullish (10 analysts)

Documents Analyzed

This report is based on 4 SEC documents filed with EDGAR.

DocumentAccession Number
3 Filing (Primary)0001181190-26-000004
Document: 0001181190-26-000004-index-headers.html0001181190-26-000004
Document: 0001181190-26-000004-index.html0001181190-26-000004
Document: 0001181190-26-000004.txt0001181190-26-000004
4 reports for CTKB
Performance horizon
Filters
Rows
Reports for CTKB — sortable, filterable
Type Now
Jun 12, 2026
2d ago
3
NEUTRAL ★ 2/10
$3.97 awaiting T+1awaiting T+1$3.96 (−0.13%)
Jun 11, 2026
3d ago
Institutional Cluster
BEARISH ★ 5/10
$4.00 awaiting T+1awaiting T+1$3.96 (+0.88%)
Jun 2, 2026
12d ago
8-K
NEUTRAL ★ 3/10
$4.05 $4.33▲ +6.91%▲ +6.51%$3.96 (−2.22%)
Apr 28, 2026
6w ago
DEFA14A
NEUTRAL ★ 2/10
$4.44 $4.56▲ +2.70%▲ +1.68%$3.96 (−10.81%)
Showing 4 of 4

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