Canaan Inc. (CAN) renews US$30 million stock buyback program

Rhea-AI Filing Summary

Canaan Inc. filed a report as a foreign private issuer indicating that it has renewed a US$30 million stock buyback program, described in Exhibit 99.1 as “Canaan Inc. Renews Its US$30 Million Share Buyback Program.” This program authorizes the company to repurchase its own shares using that amount.

The filing confirms that Canaan submits its annual reports on Form 20-F and lists its principal executive offices in Singapore. The report is signed by Chairman and Chief Executive Officer Nangeng Zhang, formalizing the disclosure for investors.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE

SECURITIES EXCHANGE ACT OF 1934

For the month of December 2025

Commission File Number: 001-39127

Canaan Inc.

28 Ayer Rajah Crescent

#06-08

Singapore 139959

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F x            Form 40-F ¨

EXHIBITS

Exhibit No.	Description
Exhibit 99.1	Canaan Inc. Renews Its US$30 Million Share Buyback Program

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Canaan Inc.
	By:	/s/ Nangeng Zhang
	Name:	Nangeng Zhang
	Title:	Chairman and Chief Executive Officer

Date: December 17, 2025

FAQ

What did Canaan Inc. disclose in its December 2025 Form 6-K for CAN?

Canaan Inc. disclosed that it has renewed a US$30 million stock buyback program, identified in Exhibit 99.1 as “Canaan Inc. Renews Its US$30 Million Share Buyback Program.”

How large is Canaan Inc.'s renewed share buyback program (CAN)?

The renewed share buyback program for Canaan Inc. is described as a US$30 million stock repurchase program.

What type of SEC annual report does Canaan Inc. (CAN) file?

Canaan Inc. indicates that it files its annual reports under Form 20-F, consistent with its status as a foreign private issuer.

Where are the principal executive offices of Canaan Inc. (CAN) located?

Canaan Inc.’s principal executive offices are located at 28 Ayer Rajah Crescent, #06-08, Singapore 139959.

Who signed the December 2025 SEC report for Canaan Inc. (CAN)?

The report was signed on behalf of Canaan Inc. by Nangeng Zhang, who is the company’s Chairman and Chief Executive Officer.