APH: 10-Q financial filing

AMPHENOL CORPORATION_September 30, 2026 Table of Contents ​ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ​ FORM 10-Q (Mark One) ​ ​ ​ ​ ☒ ​ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ​ ​ ​ ​ ​ For the quarterly period ended September 30, 2026 ​ OR ​ ​ ​ ☐ ​ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ​ For the transition period from to ​ Commission file number: 1-10879 ​ AMPHENOL CORPORATION (Exact name of Registrant as specified in its charter) ​ ​ Delaware 22-2785165 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) ​ 358 Hall Avenue Wallingford , Connecticut 06492 (Address of principal executive offices) (Zip Code) ​ 203 - 265-8900 (Registrant’s telephone number, including area code) ​ Securities registered pursuant to Section 12(b) of the Act: ​ ​ ​ ​ ​ ​ ​ Title of each class Trading Symbol(s) Name of each exchange on which registered Class A Common Stock, $0.001 par value APH New York Stock Exchange 3.375% Senior Notes due 2029 APH29B New York Stock Exchange 3.125% Senior Notes due 2032 APH32 New York Stock Exchange 3.875% Senior Notes due 2034 APH34A New York Stock Exchange ​ Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ⌧ No ◻ ​ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.40