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$CTKB
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$CTKB SEC Filings

Filed On Filing
29 Sep 2026 8-K: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

Section 1. Registered Office. The registered office of the corporation in the State of Delaware shall be in the City of Dover, County of Kent.

02 Sep 2026 144
24 Aug 2026 8-K: Regulation FD Disclosure; Other Events
20 Aug 2026 Form 4: Jiang Wenbin, Director

Received 120,095 shares by exercise or conversion · Gave up 36,269 shares to cover exercise price or tax ($169K)

20 Aug 2026 Form 4: McCombe William D., Chief Financial Officer

Received 35,420 shares by exercise or conversion · Gave up 11,904 shares to cover exercise price or tax ($55.6K)

20 Aug 2026 Form 4: Muir Glenn P, Director

Received 3,086 shares by exercise or conversion

20 Aug 2026 Form 4: Holder Michael, Director

Received 2,181 shares by exercise or conversion

20 Aug 2026 Form 4: Chin Richard, Director

Received 6,107 shares by exercise or conversion

20 Aug 2026 Form 4: Yan Ming, Director

Received 33,270 shares by exercise or conversion · Gave up 8,088 shares to cover exercise price or tax ($37.8K)

12 Aug 2026 Form 4: Feuchtwang Ilan, Chief Legal Officer, Secretary

Granted 241,416 Restricted Stock Units · Granted 127,118 Employee Stock Option (right to buy)

06 Aug 2026 SCHEDULE 13G/A
05 Aug 2026 10-Q
05 Aug 2026 8-K: Results of Operations and Financial Condition
04 Aug 2026 SCHEDULE 13G
15 Jul 2026 8-K: Departure/Election of Directors or Officers; Compensation
08 Jul 2026 SCHEDULE 13G/A
30 Jun 2026 Form 3: Feuchtwang Ilan, Chief Legal Officer, Secretary

No securities owned

25 Jun 2026 8-K: Departure/Election of Directors or Officers; Compensation
16 Jun 2026 Form 4: Yan Ming, Director

Gave 135,892 shares as a gift

16 Jun 2026 8-K: Submission of Matters to a Vote of Security Holders

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