Jiang Wenbin

Insider

PRESIDENT AND CEO

Trades at: CTKB

30D 90D 1Y

No open-market buys or sells in this period. The transactions below are grants, option exercises and gifts, which carry no market price.

Net buy / sell volume (all companies)

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions

Show open-market only

CTKB Exercise·M
May 18, 26

PRESIDENT AND CEO

$0

38.1K sh

Own +5%
CTKB Exercise·M
May 18, 26

PRESIDENT AND CEO

$0

19.3K sh

Own +6%
CTKB Exercise·M
May 18, 26

PRESIDENT AND CEO

$0

14.7K sh

Own +10%
CTKB Exercise·M
May 18, 26

PRESIDENT AND CEO

$0

7.9K sh

Own +25%
CTKB Other·F
May 18, 26

PRESIDENT AND CEO

$53.3K

15.0K sh · $3.55

Own -0%
CTKB Exercise·M
May 18, 26

PRESIDENT AND CEO

—

38.1K sh

Own +1%
CTKB Other·F
May 18, 26

PRESIDENT AND CEO

$17.9K

5.0K sh · $3.55

Own -0%
CTKB Exercise·M
May 18, 26

PRESIDENT AND CEO

—

19.3K sh

Own +0%
CTKB Other·F
May 18, 26

PRESIDENT AND CEO

$12.7K

3.6K sh · $3.55

Own -0%
CTKB Exercise·M
May 18, 26

PRESIDENT AND CEO

—

14.7K sh

Own +0%
CTKB Other·F
May 18, 26

PRESIDENT AND CEO

$6.8K

1.9K sh · $3.55

Own -0%
CTKB Exercise·M
May 18, 26

PRESIDENT AND CEO

—

7.9K sh

Own +0%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
May 18, 2026	CTKB	PRESIDENT AND CEO	Exercise M	38.1K	+5%	—	$0
May 18, 2026	CTKB	PRESIDENT AND CEO	Exercise M	19.3K	+6%	—	$0
May 18, 2026	CTKB	PRESIDENT AND CEO	Exercise M	14.7K	+10%	—	$0
May 18, 2026	CTKB	PRESIDENT AND CEO	Exercise M	7.9K	+25%	—	$0
May 18, 2026	CTKB	PRESIDENT AND CEO	Other F	15.0K	-0%	$3.55	$53.3K
May 18, 2026	CTKB	PRESIDENT AND CEO	Exercise M	38.1K	+1%	—	—
May 18, 2026	CTKB	PRESIDENT AND CEO	Other F	5.0K	-0%	$3.55	$17.9K
May 18, 2026	CTKB	PRESIDENT AND CEO	Exercise M	19.3K	+0%	—	—
May 18, 2026	CTKB	PRESIDENT AND CEO	Other F	3.6K	-0%	$3.55	$12.7K
May 18, 2026	CTKB	PRESIDENT AND CEO	Exercise M	14.7K	+0%	—	—
May 18, 2026	CTKB	PRESIDENT AND CEO	Other F	1.9K	-0%	$3.55	$6.8K
May 18, 2026	CTKB	PRESIDENT AND CEO	Exercise M	7.9K	+0%	—	—

About Jiang Wenbin

This profile aggregates every SEC Form 4 insider transaction reported by Jiang Wenbin across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.