CTKB Insider Trading

CTKB · full profile →Last filing Jun 12, 2026
Mixed · 180d
Open-Market Buys (180d)
$0
0 insiders
Open-Market Sells (180d)
$0
0 insiders
Net Insider Flow
$0
open market, 180d
Reporting Insiders
0
0 P/S transactions
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Build on these Form 4 transactions

The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.

Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
Jun 12, 2026Yan MingCHIEF TECHNOLOGY OFFICER, DirectorGift(G)136K$0
Jun 10, 2026Chin RichardDirectorGrant(A)33K$0
Jun 10, 2026Chin RichardDirectorGrant(A)18K$0
Jun 10, 2026Imper VeraDirectorOption exercise(M)44K
Jun 10, 2026Imper VeraDirectorGrant(A)33K$0
Jun 10, 2026Imper VeraDirectorGrant(A)18K$0
Jun 10, 2026Imper VeraDirectorOption exercise(M)44K$0
Jun 10, 2026Ball JackDirectorOption exercise(M)44K
Jun 10, 2026Ball JackDirectorOption exercise(M)44K$0
Jun 10, 2026Muir Glenn PDirectorGrant(A)56K$0
Jun 10, 2026Muir Glenn PDirectorGrant(A)30K$0
Jun 10, 2026Neff Deborah JDirectorOption exercise(M)44K
Jun 10, 2026Neff Deborah JDirectorGrant(A)33K$0
Jun 10, 2026Neff Deborah JDirectorGrant(A)18K$0
Jun 10, 2026Neff Deborah JDirectorOption exercise(M)44K$0
Jun 10, 2026Holder MichaelDirectorOption exercise(M)44K
Jun 10, 2026Holder MichaelDirectorGrant(A)33K$0
Jun 10, 2026Holder MichaelDirectorGrant(A)18K$0
Jun 10, 2026Holder MichaelDirectorOption exercise(M)44K$0
May 18, 2026Chin RichardDirectorOption exercise(M)6K
May 18, 2026Chin RichardDirectorOption exercise(M)6K$0
May 18, 2026McCombe William D.Chief Financial OfficerOption exercise(M)6K
May 18, 2026McCombe William D.Chief Financial OfficerTax withholding(F)2K$3.55$8K
May 18, 2026McCombe William D.Chief Financial OfficerOption exercise(M)9K
May 18, 2026McCombe William D.Chief Financial OfficerTax withholding(F)3K$3.55$11K
May 18, 2026McCombe William D.Chief Financial OfficerOption exercise(M)11K
May 18, 2026McCombe William D.Chief Financial OfficerTax withholding(F)4K$3.55$14K
May 18, 2026McCombe William D.Chief Financial OfficerOption exercise(M)6K$0
May 18, 2026McCombe William D.Chief Financial OfficerOption exercise(M)9K$0
May 18, 2026Busque PhilippeSVP, GLOBAL SALES AND SERVICESOption exercise(M)1K
May 18, 2026Busque PhilippeSVP, GLOBAL SALES AND SERVICESTax withholding(F)263$3.55$934
May 18, 2026Busque PhilippeSVP, GLOBAL SALES AND SERVICESOption exercise(M)1K
May 18, 2026Busque PhilippeSVP, GLOBAL SALES AND SERVICESTax withholding(F)378$3.55$1K
May 18, 2026Busque PhilippeSVP, GLOBAL SALES AND SERVICESOption exercise(M)2K
May 18, 2026Busque PhilippeSVP, GLOBAL SALES AND SERVICESTax withholding(F)620$3.55$2K
May 18, 2026Busque PhilippeSVP, GLOBAL SALES AND SERVICESOption exercise(M)6K
May 18, 2026Busque PhilippeSVP, GLOBAL SALES AND SERVICESTax withholding(F)1K$3.55$5K
May 18, 2026Busque PhilippeSVP, GLOBAL SALES AND SERVICESOption exercise(M)1K$0
May 18, 2026Barnett ValerieCHIEF LEGAL OFFICEROption exercise(M)2K
May 18, 2026Barnett ValerieCHIEF LEGAL OFFICERTax withholding(F)881$3.55$3K
May 18, 2026Barnett ValerieCHIEF LEGAL OFFICEROption exercise(M)5K
May 18, 2026Barnett ValerieCHIEF LEGAL OFFICERTax withholding(F)2K$3.55$7K
May 18, 2026Barnett ValerieCHIEF LEGAL OFFICEROption exercise(M)7K
May 18, 2026Barnett ValerieCHIEF LEGAL OFFICERTax withholding(F)3K$3.55$9K
May 18, 2026Barnett ValerieCHIEF LEGAL OFFICEROption exercise(M)9K
May 18, 2026Barnett ValerieCHIEF LEGAL OFFICERTax withholding(F)3K$3.55$12K
May 18, 2026Barnett ValerieCHIEF LEGAL OFFICEROption exercise(M)2K$0
May 18, 2026Barnett ValerieCHIEF LEGAL OFFICEROption exercise(M)5K$0
May 18, 2026Barnett ValerieCHIEF LEGAL OFFICEROption exercise(M)7K$0
May 18, 2026Barnett ValerieCHIEF LEGAL OFFICEROption exercise(M)9K$0
May 18, 2026Busque PhilippeSVP, GLOBAL SALES AND SERVICESOption exercise(M)1K$0
May 18, 2026Busque PhilippeSVP, GLOBAL SALES AND SERVICESOption exercise(M)2K$0
May 18, 2026Busque PhilippeSVP, GLOBAL SALES AND SERVICESOption exercise(M)6K$0
May 18, 2026Holder MichaelDirectorOption exercise(M)1K
May 18, 2026Holder MichaelDirectorOption exercise(M)1K$0
May 18, 2026Jiang WenbinPRESIDENT AND CEO, DirectorOption exercise(M)8K
May 18, 2026Jiang WenbinPRESIDENT AND CEO, DirectorTax withholding(F)2K$3.55$7K
May 18, 2026Jiang WenbinPRESIDENT AND CEO, DirectorOption exercise(M)15K
May 18, 2026Jiang WenbinPRESIDENT AND CEO, DirectorTax withholding(F)4K$3.55$13K
May 18, 2026Jiang WenbinPRESIDENT AND CEO, DirectorOption exercise(M)19K
May 18, 2026Jiang WenbinPRESIDENT AND CEO, DirectorTax withholding(F)5K$3.55$18K
May 18, 2026Jiang WenbinPRESIDENT AND CEO, DirectorOption exercise(M)38K
May 18, 2026Jiang WenbinPRESIDENT AND CEO, DirectorTax withholding(F)15K$3.55$53K
May 18, 2026Jiang WenbinPRESIDENT AND CEO, DirectorOption exercise(M)8K$0
May 18, 2026Jiang WenbinPRESIDENT AND CEO, DirectorOption exercise(M)15K$0
May 18, 2026Jiang WenbinPRESIDENT AND CEO, DirectorOption exercise(M)19K$0
May 18, 2026Jiang WenbinPRESIDENT AND CEO, DirectorOption exercise(M)38K$0
May 18, 2026Yan MingCHIEF TECHNOLOGY OFFICER, DirectorOption exercise(M)5K
May 18, 2026Yan MingCHIEF TECHNOLOGY OFFICER, DirectorTax withholding(F)1K$3.55$4K
May 18, 2026Yan MingCHIEF TECHNOLOGY OFFICER, DirectorOption exercise(M)4K
May 18, 2026Yan MingCHIEF TECHNOLOGY OFFICER, DirectorTax withholding(F)919$3.55$3K
May 18, 2026Yan MingCHIEF TECHNOLOGY OFFICER, DirectorOption exercise(M)4K
May 18, 2026Yan MingCHIEF TECHNOLOGY OFFICER, DirectorTax withholding(F)1K$3.55$4K
May 18, 2026Yan MingCHIEF TECHNOLOGY OFFICER, DirectorOption exercise(M)9K
May 18, 2026Yan MingCHIEF TECHNOLOGY OFFICER, DirectorTax withholding(F)2K$3.55$8K
May 18, 2026Yan MingCHIEF TECHNOLOGY OFFICER, DirectorOption exercise(M)5K$0
May 18, 2026Yan MingCHIEF TECHNOLOGY OFFICER, DirectorOption exercise(M)4K$0
May 18, 2026Yan MingCHIEF TECHNOLOGY OFFICER, DirectorOption exercise(M)4K$0
May 18, 2026Yan MingCHIEF TECHNOLOGY OFFICER, DirectorOption exercise(M)9K$0
May 18, 2026McCombe William D.Chief Financial OfficerOption exercise(M)11K$0
Mar 13, 2026Yan MingCHIEF TECHNOLOGY OFFICER, DirectorGift(G)1.2M$0
Mar 10, 2026Chin RichardDirectorOption exercise(M)6K
Mar 10, 2026Chin RichardDirectorOption exercise(M)6K$0
Mar 10, 2026Holder MichaelDirectorOption exercise(M)3K
Mar 10, 2026Holder MichaelDirectorOption exercise(M)3K$0
Mar 10, 2026Jiang WenbinPRESIDENT AND CEO, DirectorOption exercise(M)16K
Mar 10, 2026Jiang WenbinPRESIDENT AND CEO, DirectorTax withholding(F)4K$4.23$16K
Mar 10, 2026Jiang WenbinPRESIDENT AND CEO, DirectorTax withholding(F)9K$4.23$40K
Mar 10, 2026Jiang WenbinPRESIDENT AND CEO, DirectorOption exercise(M)39K
Mar 10, 2026Jiang WenbinPRESIDENT AND CEO, DirectorOption exercise(M)29K
Mar 10, 2026Jiang WenbinPRESIDENT AND CEO, DirectorTax withholding(F)8K$4.23$33K
Mar 10, 2026Jiang WenbinPRESIDENT AND CEO, DirectorGrant(A)915K$0
Mar 10, 2026Jiang WenbinPRESIDENT AND CEO, DirectorOption exercise(M)29K$0
Mar 10, 2026Jiang WenbinPRESIDENT AND CEO, DirectorOption exercise(M)39K$0
Mar 10, 2026Jiang WenbinPRESIDENT AND CEO, DirectorGrant(A)486K$0
Mar 10, 2026Jiang WenbinPRESIDENT AND CEO, DirectorOption exercise(M)16K$0
Mar 10, 2026Barnett ValerieCHIEF LEGAL OFFICEROption exercise(M)5K
Mar 10, 2026Barnett ValerieCHIEF LEGAL OFFICERTax withholding(F)2K$4.23$7K
Mar 10, 2026Barnett ValerieCHIEF LEGAL OFFICERTax withholding(F)6K$4.23$24K
Mar 10, 2026Barnett ValerieCHIEF LEGAL OFFICEROption exercise(M)15K

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Coverage: Form 4 filings indexed 2021-03-292026-07-14. Earlier history is backfilling; this window widens as it deepens.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).