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Buy Day today: Neutral (51) Mixed market breadth · no major macro event

Insider Trading

Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.

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A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).
Ticker Insider Title Date Transaction Price ($) Shares Value ($) SEC Form 4
CTKB McCombe William D. Chief Financial Officer 08/18/2026 Steuer-Abgabe 4.67 5,401 25,223 Form 4
CTKB McCombe William D. Chief Financial Officer 08/18/2026 Optionsausübung 16,049 Form 4
CTKB McCombe William D. Chief Financial Officer 08/18/2026 Steuer-Abgabe 4.67 4,392 20,511 Form 4
CTKB McCombe William D. Chief Financial Officer 08/18/2026 Optionsausübung 13,051 Form 4
CTKB McCombe William D. Chief Financial Officer 08/18/2026 Steuer-Abgabe 4.67 2,111 9,858 Form 4
CTKB McCombe William D. Chief Financial Officer 08/18/2026 Optionsausübung 6,320 Form 4
CTKB Yan Ming CHIEF TECHNOLOGY OFFICER 08/18/2026 Steuer-Abgabe 4.67 3,463 16,172 Form 4
CTKB Yan Ming CHIEF TECHNOLOGY OFFICER 08/18/2026 Optionsausübung 14,220 Form 4
CTKB Yan Ming CHIEF TECHNOLOGY OFFICER 08/18/2026 Steuer-Abgabe 4.67 1,501 7,010 Form 4
CTKB Yan Ming CHIEF TECHNOLOGY OFFICER 08/18/2026 Optionsausübung 6,162 Form 4
CTKB Yan Ming CHIEF TECHNOLOGY OFFICER 08/18/2026 Steuer-Abgabe 4.67 1,346 6,286 Form 4
CTKB Yan Ming CHIEF TECHNOLOGY OFFICER 08/18/2026 Optionsausübung 5,525 Form 4
CTKB Yan Ming CHIEF TECHNOLOGY OFFICER 08/18/2026 Steuer-Abgabe 4.67 1,778 8,303 Form 4
CTKB Yan Ming CHIEF TECHNOLOGY OFFICER 08/18/2026 Optionsausübung 7,363 Form 4
CTKB Jiang Wenbin PRESIDENT AND CEO 08/18/2026 Steuer-Abgabe 4.67 20,956 97,865 Form 4
CTKB Jiang Wenbin PRESIDENT AND CEO 08/18/2026 Optionsausübung 57,212 Form 4
CTKB Jiang Wenbin PRESIDENT AND CEO 08/18/2026 Steuer-Abgabe 4.67 7,062 32,980 Form 4
CTKB Jiang Wenbin PRESIDENT AND CEO 08/18/2026 Optionsausübung 29,002 Form 4
CTKB Jiang Wenbin PRESIDENT AND CEO 08/18/2026 Steuer-Abgabe 4.67 5,382 25,134 Form 4
CTKB Jiang Wenbin PRESIDENT AND CEO 08/18/2026 Optionsausübung 22,100 Form 4
CTKB Jiang Wenbin PRESIDENT AND CEO 08/18/2026 Steuer-Abgabe 4.67 2,869 13,398 Form 4
CTKB Jiang Wenbin PRESIDENT AND CEO 08/18/2026 Optionsausübung 11,781 Form 4
CTKB Holder Michael Director 08/18/2026 Optionsausübung 2,181 Form 4
CTKB Chin Richard Director 08/18/2026 Optionsausübung 6,107 Form 4
CTKB Muir Glenn P Director 08/18/2026 Optionsausübung 3,086 Form 4

A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).

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