1934 Act Registration No. 1-14700

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Hsinchu 300-096, Taiwan
Republic of China

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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  o

Indicate by check mark if the registrant is submitting the Form 6-K in papers as permitted by Regulation S-T Rule 101(b)(1):o

("TSMC"; NYSE: TSM)

Indicate by check mark if the registrant is submitting the Form 6-K in papers as permitted by Regulation S-T Rule 101(b)(7):o This is to report 1) the changes in the shareholdings of TSMC board of directors, executive officers and shareholders who own more than 10% of total outstanding common shares of TSMC; 2) the changes in the pledge of TSMC common shares by TSMC board of directors, executive officers and shareholders who own more than 10% of total outstanding common shares of TSMC; 3) the acquisition and disposition of assets by TSMC and its subsidiaries; 4) the capital appropriations approved by TSMC board of directors; 5) the unsecured bonds issued by TSMC and its subsidiaries and 6) the cancellation of TSMC common shares for the month of May 2025.

1.The changes in the shareholdings of TSMC board of directors, executive officers and shareholders who own more than 10% of total outstanding common shares of TSMC:

Title

Name

Number of shares held as of

Changes

4/30/2025

5/31/2025

Senior Vice President

Wei-Jen Lo

1,399,178

1,394,178

(5,000)

Vice President

Jonathan Lee

457,134

458,368

1,234

Note: Shareholdings include shares held by the related parties.

2.The changes in the pledge of TSMC common shares by TSMC board of directors, executive officers and shareholders who own more than 10% of total outstanding common shares of TSMC: Inapplicable.

3.The acquisition and disposition of assets by TSMC and its subsidiaries:

Fixed-income investment: NT$16.3 billion of acquisition and NT$0.4 billion of disposition.

4.The capital appropriations approved by TSMC board of directors:
(1) Machinery equipment for advanced technology capacity: US$9,590 million.
(2) Machinery equipment for advanced packaging, mature and/or specialty technology capacity: US$308 million.
(3) Real estate and capitalized leased assets: US$5,350 million.

5.The unsecured bonds issued by TSMC and its subsidiaries: Inapplicable.

6.The cancellation of TSMC common shares:
The TSMC board of directors approved the cancellation of 117,721 TSMC common shares of reclaimed employee restricted stock awards and the associated paid-in capital reduction of NT$1,177,210 and set May 13, 2025 as the record date for the paid-in capital reduction.