Karl Kan Zhang - 19 May 2026 Form 4 Insider Report for CooTek(Cayman)Inc.

Reporting relationship: CTO and Acting CFO, Director
Issuer ticker: N/A
Reported as of: 19 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 19 May 2026, 07:26:55 UTC
Prior SEC filing: 16 Mar 2026
Source filing: View source filing
Reporting owner signature: Karl Kan Zhang

Key filing fact

Karl Kan Zhang filed Form 4 for CooTek(Cayman)Inc. on 19 May 2026.

Key facts

This page summarizes Karl Kan Zhang's Form 4 filing for CooTek(Cayman)Inc..
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 19 May 2026, 07:26.

Change

Previous filing in this sequence was filed on 16 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001765056 Primary reporting owner

ZHANG KAN

Relationship: CTO and Acting CFO, Director
Address: 7F, T3, LANE 360, XINLONG ROAD, MINHANG DISTRICT, SHANGHAI
Signature: Karl Kan Zhang
Signature date: 19 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

No ticker transaction

Class A ordinary shares

Purchase

Transaction value
Shares: +540,786,459
Change %
Price: $0.000000^*
Shares after: 540,786,459
Date: 19 May 2026
Ownership: Direct
Footnotes: F1

No ticker holding

Class A ordinary shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 94,285,750
Date: 19 May 2026
Ownership: Direct

No ticker holding

Class B ordinary shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 246,224,465
Date: 19 May 2026
Ownership: By Kan's Global CoolStuff Investment Inc.
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

No ticker holding Derivative

Options (right to buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 10,000,000
Date: 19 May 2026
Ownership: By Kan's Global CoolStuff Investment Inc.
Underlying class: Class A ordinary shares
Underlying amount: 10,000,000
Exercise price: $0.000200
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Actual price is $0.000037 per share, reported at minimum increment permitted by system.

Footnote F2

Kan's Global CoolStuff Investment Inc. is wholly owned by Kan's Universe Investment Limited, a British Virgin Islands company, which is ultimately owned Kan Zhang.