[6-K] TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Current Report (Foreign Issuer)

Rhea-AI Filing Summary

TSMC filed a Form 6-K summarizing September 2025 corporate actions. The company reported routine insider shareholding changes and balance sheet moves. Chairman & CEO C.C. Wei’s holdings increased by 391,875 shares to 7,917,270, with additional increases across several senior executives.

TSMC recorded fixed-income activity comprising NT$16.6 billion of acquisitions and NT$1.0 billion of dispositions. The company also issued unsecured bonds: Tranche A for NT$13.8 billion at 1.66%, maturing in September 2030 with bullet repayment and annual interest; and Tranche B for NT$4.0 billion at 1.73%, maturing in September 2035.

TSMC reported no new pledges of common shares by directors or major shareholders, no board-approved capital appropriations, and no cancellations of common shares during the month.

Insights

Credit and capital markets analyst

Modest debt raise and fixed-income allocations; neutral impact.

TSMC listed unsecured bond issuances totaling NT$17.8 billion across two tranches with low coupons of 1.66% and 1.73%. Tranche A matures in September 2030 and Tranche B in September 2035, both with bullet repayment and annual interest. This aligns with conservative funding at attractive rates.

The filing also notes fixed-income portfolio moves: acquisitions of NT$16.6 billion and dispositions of NT$1.0 billion. These are typical treasury actions and suggest ongoing cash management without signaling strategy shifts in the excerpt.

Insider shareholding increases, including the CEO’s 391,875-share rise to 7,917,270, are disclosed for transparency. No pledges, capital appropriations, or share cancellations were reported for the month.

1934 Act Registration No. 1-14700

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 October 2025

(Commission File Number: 001-14700)

_____________________________

Taiwan Semiconductor Manufacturing Company Limited

(Translation of Registrant’s Name Into English)

_____________________________

No. 8, Li-Hsin Road 6

Hsinchu Science Park

Hsinchu 300-096, Taiwan
Republic of China

(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  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

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

SIGNATURES

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.

Taiwan Semiconductor Manufacturing Company Limited

Date:   October 23, 2025

By

/s/ Wendell Huang

Wendell Huang

Senior Vice President and Chief Financial Officer

Taiwan Semiconductor Manufacturing Company Limited

("TSMC"; NYSE: TSM)

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 September 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
						8/31/2025			9/30/2025
Chairman & Chief Executive Officer			C.C. Wei			7,525,395			7,917,270			391,875
Executive Vice President and Co-Chief Operating Officer			Y.P. Chyn			9,235,883			9,297,633			61,750
Executive Vice President and Co-Chief Operating Officer			Y.J. Mii			1,127,898			1,189,648			61,750
Senior Vice President and Deputy Co-Chief Operating Officer / Chief Information Security Officer			Cliff Hou			619,846			658,796			38,950
Senior Vice President and Deputy Co-Chief Operating Officer			Kevin Zhang			226,304			265,254			38,950
Senior Vice President			Lora Ho			6,600,183			6,629,133			28,950
Senior Vice President, General Counsel and Corporate Governance Officer			Sylvia Fang			1,230,474			1,269,424			38,950
Senior Vice President and Chief Financial Officer			Wendell Huang			1,731,719			1,770,669			38,950
Vice President			Y.L. Wang			1,432,347			1,457,047			24,700
Vice President			T.S. Chang			252,064			276,764			24,700
Vice President			Michael Wu			763,597			788,297			24,700
Vice President			Min Cao			476,775			501,475			24,700
Vice President			Y.H. Liaw			851,369			867,044			15,675
Vice President			Simon Jang			404,194			419,869			15,675
Vice President			C.S. Yoo			2,827,761			2,843,436			15,675
Vice President			Jun He			78,434			94,109			15,675
Vice President			Geoffrey Yeap			148,994			173,694			24,700

Title			Name			Number of shares held as of						Changes
						8/31/2025			9/30/2025
Vice President and Chief Information Officer			Chris Horng-Dar Lin			101,499			117,174			15,675
Vice President			Jonathan Lee			460,225			485,261			25,036
Vice President			Arthur Chuang			4,646,620			4,662,295			15,675
Vice President			L.C. Lu			245,031			260,706			15,675
Vice President			K.C. Hsu			147,239			162,914			15,675
Vice President			Ray Chuang			315,200			330,875			15,675

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: None.

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

Fixed-income investment: NT$16.6 billion of acquisition and NT$1.0 billion of disposition.

4.The capital appropriations approved by TSMC board of directors: None.

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

Issuance

Tranche

Issuance Period

Total Amount (in billions)

Coupon Rate

Repayment and Interest Payment

114-4

A

September 2025 ~ September 2030

NT$13.8

1.66%

Bullet repayment; interest payable annually

B

September 2025 ~ September 2035

NT$4.0

1.73%

6.The cancellation of TSMC common shares: None.

FAQ

What did TSM (TSMC) report in its latest 6-K?

TSMC disclosed insider shareholding changes, fixed-income investments (NT$16.6B buys, NT$1.0B sales), and unsecured bond issuances in September 2025.

How much fixed-income did TSMC buy and sell in September 2025?

TSMC acquired NT$16.6 billion and disposed of NT$1.0 billion in fixed-income instruments.

What are the terms of TSMC’s new unsecured bonds?

Tranche A: NT$13.8B at 1.66%, maturing September 2030, bullet repayment; Tranche B: NT$4.0B at 1.73%, maturing September 2035, annual interest.

Did TSMC report any share pledges or cancellations?

No. The company reported no new pledges by directors or major shareholders and no cancellations of common shares.

Were there any board-approved capital appropriations at TSMC?

No. The filing states there were no capital appropriations approved by the board in September 2025.

Which TSMC executive showed a notable change in holdings?

Chairman & CEO C.C. Wei’s holdings increased by 391,875 shares to 7,917,270.