ASML HOLDING NV (ASML)

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

Indicate by check mark if the registrant is submitting the Form 6-K on paper as permitted by Regulation S-T Rule 101(b)(7): ¨

EXHIBITS 99.1 AND 99.3 TO THIS REPORT ON FORM 6-K ARE INCORPORATED BY REFERENCE IN THE REGISTRATION STATEMENT ON FORM S-8 (FILE NO. 333-203390), THE REGISTRATION STATEMENT ON FORM S-8 (FILE NO. 333-219442), THE REGISTRATION STATEMENT ON FORM S-8 (FILE NO. 333-227464) AND THE REGISTRATION STATEMENT ON FORM S-8 (FILE NO. 333-291580) OF ASML HOLDING N.V. AND IN THE OUTSTANDING PROSPECTUSES CONTAINED IN SUCH REGISTRATION STATEMENTS.

99.1 “ASML reports €11.7 billion total net sales and €5.0 billion net income in Q3 2026. Full-year 2026 total net sales expected to be between €44 billion and €45 billion, with a gross margin around 56%", press release dated October 14, 2026

99.2 “ASML reports €11.7 billion total net sales and €5.0 billion net income in Q3 2026. Full-year 2026 total net sales expected to be between €44 billion and €45 billion, with a gross margin around 56%", presentation dated October 14, 2026

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

Indicate by check mark if the registrant is submitting the Form 6-K on paper as permitted by Regulation S-T Rule 101(b)(7): ¨

EXHIBITS 99.1, 99.3 AND 99.4 TO THIS REPORT ON FORM 6-K ARE INCORPORATED BY REFERENCE IN THE REGISTRATION STATEMENT ON FORM S-8 (FILE NO. 333-203390), THE REGISTRATION STATEMENT ON FORM S-8 (FILE NO. 333-219442), THE REGISTRATION STATEMENT ON FORM S-8 (FILE NO. 333-227464) AND THE REGISTRATION STATEMENT ON FORM S-8 (FILE NO. 333-291580) OF ASML HOLDING N.V. AND IN THE OUTSTANDING PROSPECTUSES CONTAINED IN SUCH REGISTRATION STATEMENTS.

99.1 “ASML reports €9.3 billion total net sales and €2.9 billion net income in Q2 2026. ASML increases outlook, expects 2026 total net sales to be between €43 billion and €45 billion, with a gross margin between 54% and 56%", press release dated July 15, 2026

99.2 “ASML reports €9.3 billion total net sales and €2.9 billion net income in Q2 2026. ASML increases outlook, expects 2026 total net sales to be between €43 billion and €45 billion, with a gross margin between 54% and 56%", presentation dated July 15, 2026

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

Indicate by check mark if the registrant is submitting the Form 6-K on paper as permitted by Regulation S-T Rule 101(b)(7): ¨

EXHIBIT 99.1 TO THIS REPORT ON FORM 6-K IS INCORPORATED BY REFERENCE IN THE REGISTRATION STATEMENT ON FORM S-8 (FILE NO. 333-203390), THE REGISTRATION STATEMENT ON FORM S-8 (FILE NO. 333-219442), THE REGISTRATION STATEMENT ON FORM S-8 (FILE NO. 333-227464) AND THE REGISTRATION STATEMENT ON FORM S-8 (FILE NO. 333-291580) OF ASML HOLDING N.V. AND IN THE OUTSTANDING PROSPECTUSES CONTAINED IN SUCH REGISTRATION STATEMENTS.

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.