APH / Amphenol Corporation - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

Amphenol Corporation
US ˙ NYSE ˙ US0320951017

Mga Batayang Estadistika
LEI 549300D3L3G0R4U4VT04
CIK 820313
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Amphenol Corporation
SEC Filings (Chronological Order)
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August 25, 2025 EX-10.2

364-DAY TERM LOAN CREDIT AGREEMENT dated as of August 22, 2025 AMPHENOL CORPORATION, as the Borrower THE SUBSIDIARIES PARTY HERETO, as Subsidiary Guarantors The Lenders Party Hereto, JPMORGAN CHASE BANK, N.A., as Administrative Agent BNP PARIBAS SECU

Exhibit 10.2 Execution Version 364-DAY TERM LOAN CREDIT AGREEMENT dated as of August 22, 2025 among AMPHENOL CORPORATION, as the Borrower THE SUBSIDIARIES PARTY HERETO, as Subsidiary Guarantors The Lenders Party Hereto, and JPMORGAN CHASE BANK, N.A., as Administrative Agent BNP PARIBAS SECURITIES CORP. and MIZUHO BANK, LTD., as Co-Syndication Agents and BANK OF AMERICA, N.A., BARCLAYS BANK PLC, CI

August 25, 2025 EX-10.1

THREE-YEAR TERM LOAN CREDIT AGREEMENT dated as of August 22, 2025 AMPHENOL CORPORATION, as the Borrower THE SUBSIDIARIES PARTY HERETO, as Subsidiary Guarantors The Lenders Party Hereto, JPMORGAN CHASE BANK, N.A., as Administrative Agent BNP PARIBAS S

Exhibit 10.1 Execution Version THREE-YEAR TERM LOAN CREDIT AGREEMENT dated as of August 22, 2025 among AMPHENOL CORPORATION, as the Borrower THE SUBSIDIARIES PARTY HERETO, as Subsidiary Guarantors The Lenders Party Hereto, and JPMORGAN CHASE BANK, N.A., as Administrative Agent BNP PARIBAS SECURITIES CORP. and MIZUHO BANK, LTD., as Co-Syndication Agents and BANK OF AMERICA, N.A., BARCLAYS BANK PLC,

August 25, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 22, 2025 AMPHENOL CORPORAT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 22, 2025 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File

August 4, 2025 EX-99.1

AMPHENOL CORPORATION TO ACQUIRE CONNECTIVITY AND CABLE SOLUTIONS BUSINESS FROM COMMSCOPE

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL CORPORATION TO ACQUIRE CONNECTIVITY AND CABLE SOLUTIONS BUSINESS FROM COMMSCOPE Transaction highlights: · To acquire CommScope’s Connectivity and Cable Solutions business for $10.5 billion in cash · Adds significant fiber optic interconnect capabilities for the IT datacom a

August 4, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2025 AMPHENOL CORPORATI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2025 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File

July 25, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

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 June 30, 2025 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-

July 23, 2025 8-K

UNITED STATES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 23, 2025 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File N

July 23, 2025 EX-99.1

AMPHENOL REPORTS RECORD SECOND QUARTER 2025 RESULTS

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL REPORTS RECORD SECOND QUARTER 2025 RESULTS Second Quarter 2025 Highlights: ● Sales of $5.7 billion, up 57% in U.S. dollars and 41% organically compared to the second quarter of 2024 ● GAAP Diluted EPS of $0.86, up 110% compared to prior year ● Adjusted Diluted EPS of $0.81,

June 16, 2025 EX-4.2

Officers’ Certificate, dated June 16, 2025, establishing the 3.125% Senior Notes due 2032, pursuant to the Indenture (filed as Exhibit 4.2 to the Form 8-K filed on June 16, 2025).*

Exhibit 4.2 AMPHENOL CORPORATION OFFICERS’ CERTIFICATE Pursuant to Section 2.2 of the Indenture Reference is made to the Indenture (the “Indenture”), dated as of March 16, 2023, between Amphenol Corporation, a Delaware corporation (the “Company”), and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”). Capitalized terms used but not otherwise defined herein shall have the re

June 16, 2025 EX-4.3

Form of Global Note for the Notes

Exhibit 4.3 THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE COMMON DEPOSITARY OR A NOMINEE OF THE COMMON DEPOSITARY. THIS NOTE IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE COMMON DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND MAY NOT BE TRANSF

June 16, 2025 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 16, 2025 AMPHENOL CORPORATION (Exact name of registrant as specified in charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Numbe

June 16, 2025 8-A12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 AMPHENOL CORPORATION (Exact Name of Registrant as

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 AMPHENOL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 1-10879 22-2785165 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I.

June 12, 2025 EX-4.3

Form of Global Note for the Notes

Exhibit 4.3 THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITARY OR A NOMINEE OF THE DEPOSITARY. THIS NOTE IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND MAY NOT BE TRANSFERRED EXCEPT AS A WHO

June 12, 2025 EX-1.1

Underwriting Agreement, dated June 11, 2025, by and between the Company and BNP PARIBAS, Citigroup Global Markets Limited, Commerzbank Aktiengesellschaft, Barclays Bank PLC, HSBC Bank plc, Mizuho International plc, The Toronto-Dominion Bank, Goldman Sachs & Co. LLC, J.P. Morgan Securities plc, ING Bank N.V. Belgian Branch, Siebert Williams Shank & Co., LLC, Standard Chartered Bank and U.S. Bancorp Investments, Inc., relating to the offer and sale of €600,000,000 aggregate principal amount of the Euro Notes.

Exhibit 1.1 AMPHENOL CORPORATION €600,000,000 3.125% Senior Notes due 2032 UNDERWRITING AGREEMENT June 11, 2025 Underwriting Agreement June 11, 2025 BNP PARIBAS CITIGROUP GLOBAL MARKETS LIMITED COMMERZBANK AKTIENGESELLSCHAFT BARCLAYS BANK PLC HSBC BANK PLC MIZUHO INTERNATIONAL PLC THE TORONTO-DOMINION BANK GOLDMAN SACHS & CO. LLC J.P. MORGAN SECURITIES PLC ING BANK N.V. BELGIAN BRANCH SIEBERT WILL

June 12, 2025 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 12, 2025 AMPHENOL CORPORATION (Exact name of registrant as specified in charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Numbe

June 12, 2025 EX-4.2

Officers’ Certificate, dated June 12, 2025, establishing the 4.375% Senior Notes due 2028, pursuant to the Indenture (filed as Exhibit 4.2 to the Form 8-K filed on June 12, 2025).*

Exhibit 4.2 AMPHENOL CORPORATION OFFICERS’ CERTIFICATE Pursuant to Section 2.2 of the Indenture Reference is made to the Indenture (the “Indenture”), dated as of March 16, 2023, between Amphenol Corporation, a Delaware corporation (the “Company”), and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”). Capitalized terms used but not otherwise defined herein shall have the re

June 12, 2025 EX-99.1

AMPHENOL CORPORATION ANNOUNCES PRICING OF EURO-DENOMINATED SENIOR NOTES OFFERING

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL CORPORATION ANNOUNCES PRICING OF EURO-DENOMINATED SENIOR NOTES OFFERING Wallingford, Connecticut, June 11, 2025. Amphenol Corporation (NYSE: APH) (the “Company”) announced today the pricing of its offering of €600 million aggregate principal amount of senior notes due 2032

June 12, 2025 424B5

AMPHENOL CORPORATION €600,000,000 3.125% Senior Notes due 2032

TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(5)  Registration No. 333-270605 PROSPECTUS SUPPLEMENT (To Prospectus dated March 16, 2023) AMPHENOL CORPORATION €600,000,000 3.125% Senior Notes due 2032 We are offering €600,000,000 aggregate principal amount of our 3.125% Senior Notes due 2032 (the “notes”). We will pay interest on the notes annually on June 16 of each year, beginning on June 16,

June 12, 2025 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) June 11, 2025 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Nu

June 12, 2025 EX-FILING FEES

Table 1: Newly Registered and Carry Forward Securities

Calculation of Filing Fee Tables S-3 AMPHENOL CORP /DE/ Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Debt 3.

June 11, 2025 FWP

AMPHENOL CORPORATION Final Term Sheet June 11, 2025

Filed Pursuant to Rule 433 Registration Statement No. 333- 270605 June 11, 2025 AMPHENOL CORPORATION Final Term Sheet June 11, 2025 Issuer: Amphenol Corporation (the “Company”) Legal Entity Identifier (LEI) Code: 549300D3L3G0R4U4VT04 Expected Ratings (Moody’s / S&P)*: A3 / A- (Stable / Stable) Trade Date: June 11, 2025 Settlement Date**: June 16, 2025 (T+3) 3.125% Senior Notes due 2032 Principal A

June 11, 2025 424B3

SUBJECT TO COMPLETION PRELIMINARY PROSPECTUS SUPPLEMENT DATED JUNE 11, 2025

TABLE OF CONTENTS The information in this preliminary prospectus supplement is not complete and may be changed.

June 10, 2025 EX-99.1

AMPHENOL CORPORATION ANNOUNCES PRICING OF USD-DENOMINATED SENIOR NOTES OFFERING

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL CORPORATION ANNOUNCES PRICING OF USD-DENOMINATED SENIOR NOTES OFFERING Wallingford, Connecticut, June 9, 2025. Amphenol Corporation (NYSE: APH) (the “Company”) announced today the pricing of its offering of $750 million aggregate principal amount of senior notes due 2028 (t

June 10, 2025 424B5

AMPHENOL CORPORATION $750,000,000 4.375% Senior Notes due 2028

TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(5)  Registration No. 333-270605 PROSPECTUS SUPPLEMENT (To Prospectus dated March 16, 2023) AMPHENOL CORPORATION $750,000,000 4.375% Senior Notes due 2028 We are offering $750,000,000 aggregate principal amount of our 4.375% Senior Notes due 2028 (the “notes”). We will pay interest on the notes semi-annually on June 12 and December 12 of each year, b

June 10, 2025 EX-1.1

Underwriting Agreement, dated June 9, 2025, by and between the Company and Citigroup Global Markets Inc., Mizuho Securities USA LLC and TD Securities (USA) LLC, as representatives of the several Underwriters named in Schedule A thereto, relating to the offer and sale of $750,000,000 aggregate principal amount of the USD Notes.

Exhibit 1.1 AMPHENOL CORPORATION $750,000,000 4.375% Senior Notes due 2028 UNDERWRITING AGREEMENT June 9, 2025 Underwriting Agreement June 9, 2025 CITIGROUP GLOBAL MARKETS INC. MIZUHO SECURITIES USA LLC TD SECURITIES (USA) LLC As Representatives of the several Underwriters named in Schedule A hereto c/o Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013 c/o Mizuho Securiti

June 10, 2025 EX-FILING FEES

Table 1: Newly Registered and Carry Forward Securities

Calculation of Filing Fee Tables S-3 AMPHENOL CORP /DE/ Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Debt 4.

June 10, 2025 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) June 9, 2025 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Num

June 9, 2025 424B3

SUBJECT TO COMPLETION PRELIMINARY PROSPECTUS SUPPLEMENT DATED JUNE 9, 2025

TABLE OF CONTENTS The information in this preliminary prospectus supplement is not complete and may be changed.

June 9, 2025 FWP

AMPHENOL CORPORATION Final Term Sheet June 9, 2025

Filed Pursuant to Rule 433 Registration Statement No. 333- 270605 June 9, 2025 AMPHENOL CORPORATION Final Term Sheet June 9, 2025 Issuer: Amphenol Corporation (the “Company”) Expected Ratings (Moody’s / S&P)*: A3 / A- (Stable / Stable) Trade Date: June 9, 2025 Settlement Date**: June 12, 2025 (T+3) 4.375% Senior Notes due 2028 Principal Amount: $750,000,000 (the “Notes”) Maturity Date: June 12, 20

May 30, 2025 EX-1.01

Exhibit 1.01 - Conflict Minerals Report as required by Items 1.01 and 1.02 of this Form SD.

Exhibit 1.01 Amphenol Corporation Conflict Minerals Report For The Year Ended December 31, 2024 This report (this “Conflict Minerals Report”) for the year ended December 31, 2024 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended, and Form SD (collectively, the “Rule”). The Rule was adopted by the Securities and Exchange Commission (the “SEC”) to implement

May 30, 2025 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form SD SPECIALIZED DISCLOSURE REPORT Amphenol Corporation (Exact Name of Registrant as Specified in Charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorpor

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form SD SPECIALIZED DISCLOSURE REPORT Amphenol Corporation (Exact Name of Registrant as Specified in Charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) 358 Hall Avenue, Wallingford, Connecticut 06492 (Address of Princ

May 16, 2025 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2025 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Nu

May 16, 2025 EX-3.1

Certificate of Amendment to the Restated Certificate of Incorporation of Amphenol Corporation

Exhibit 3.1 CERTIFICATE OF AMENDMENT TO THE RESTATED CERTIFICATE OF INCORPORATION OF AMPHENOL CORPORATION Amphenol Corporation, a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware, does hereby certify: 1. The name of the Corporation is Amphenol Corporation (hereinafter, the “Corporation”). 2. Article FOURTH of the Corporation’s Restated

May 14, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2025 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Num

April 25, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

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 March 31, 2025 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

April 23, 2025 EX-99.1

AMPHENOL REPORTS RECORD FIRST QUARTER 2025 RESULTS

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL REPORTS RECORD FIRST QUARTER 2025 RESULTS First Quarter 2025 Highlights: ● Record Sales of $4.8 billion, up 48% in U.S. dollars and 33% organically compared to the first quarter of 2024 ● GAAP Diluted EPS of $0.58, up 32% compared to prior year ● Record Adjusted Diluted EPS

April 23, 2025 8-K

UNITED STATES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 23, 2025 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File

April 4, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

April 4, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

March 19, 2025 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

February 7, 2025 EX-19.1

Amphenol Corporation Insider Trading Compliance Policy.**

Exhibit 19.1 AMPHENOL CORPORATION Insider Trading Compliance Policy Amphenol Corporation (together with its subsidiaries, the “Company”) seeks to promote a culture that encourages ethical conduct and a commitment to compliance with the law. We require our personnel to comply at all times with federal law governing insider trading. This policy sets forth procedures designed to provide reasonable as

February 7, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2024 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: 1-1087

February 7, 2025 EX-10.29

Amendment to The Amphenol Corporation Employee Savings/401(K) Plan Adoption Agreement, effective January 1, 2025, dated November 21, 2024 (filed as Exhibit 10.29 to the December 31, 2024 Form 10-K).†*

Exhibit 10.29 AMENDMENT EXECUTION PAGE Plan Name:Amphenol Corporation Employee Savings/401(k) Plan (the “Plan”) Employer:Amphenol Corporation [Note: These execution pages are to be completed in the event the Employer modifies any prior election(s) or makes a new election(s) in this Adoption Agreement. Attach the amended page(s) of the Adoption Agreement to these execution pages.] The following sec

February 7, 2025 EX-10.24

2025 Amphenol Corporation Management Incentive Plan (filed as Exhibit 10.24 to the December 31, 2024 Form 10-K).†*

Exhibit 10.24 2025 AMPHENOL MANAGEMENT INCENTIVE PLAN I. Purpose The purpose of the 2025 Management Incentive Plan (the “2025 Incentive Plan”) is to reward eligible key management personnel of Amphenol Corporation and affiliated operations with performance-based cash bonus payments provided certain goals are achieved. II. Eligibility Generally, participation includes senior management positions, c

February 7, 2025 EX-21.1

Subsidiaries of the Company.**

Exhibit 21.1 Amphenol Corporation Listing of Subsidiaries as of December 31, 2024 State or other Jurisdiction Name of Subsidiary of Incorporation 3395 Walden Avenue Acquisition Corp. New York, U.S.A. Accumetrics, Inc. New York, U.S.A. Add-On Computer Peripherals LLC California, U.S.A. Airmar EMEA EURL France Airmar Technology Corp. New Hampshire, U.S.A. Aither Groupe France All Sensors Corporation

February 7, 2025 EX-10.18

Eleventh Amendment to Pension Plan for Employees of Amphenol Corporation, as amended and restated effective January 1, 2016, dated December 19, 2024 (filed as Exhibit 10.18 to the December 31, 2024 Form 10-K).†*

Exhibit 10.18 ELEVENTH AMENDMENT (2024-FIRST) TO THE PENSION PLAN FOR EMPLOYEES OF AMPHENOL CORPORATION AS AMENDED AND RESTATED EFFECTIVE JANUARY 1, 2016 Pursuant to Section 12.1 of the Pension Plan for Employees of Amphenol Corporation as amended and restated effective January 1, 2016 (the “Plan”), the Plan is hereby amended as follows, effective January 1, 2024: 1. Section 7.5 is amended in its

February 7, 2025 EX-10.19

Twelfth Amendment to Pension Plan for Employees of Amphenol Corporation, as amended and restated effective January 1, 2016, dated December 19, 2024.†**

Exhibit 10.19 TWELFTH AMENDMENT (2024-2nd) TO THE PENSION PLAN FOR EMPLOYEES OF AMPHENOL CORPORATION Pursuant to Section 12.1 of the Pension Plan for Employees of Amphenol Corporation amended and restated effective January 1, 2016 (the "Plan"), the Plan is hereby amended as follows, effective January 1, 2025: 1.Exhibit B (Hourly Employees’) is amended by revising existing Section 4.1(a)(10)(xi) to

February 3, 2025 EX-99.1

AMPHENOL CORPORATION COMPLETES ACQUISITION OF OWN AND DAS BUSINESSES FROM COMMSCOPE

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL CORPORATION COMPLETES ACQUISITION OF OWN AND DAS BUSINESSES FROM COMMSCOPE Wallingford, Connecticut, February 3, 2025. Amphenol Corporation (NYSE: APH) today announced it had completed the acquisition of CommScope’s (NASDAQ: COMM) Outdoor Wireless Networks (OWN) and Distrib

February 3, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 31, 2025 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

January 22, 2025 EX-99.1

AMPHENOL REPORTS RECORD FOURTH QUARTER AND FULL YEAR 2024 RESULTS

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL REPORTS RECORD FOURTH QUARTER AND FULL YEAR 2024 RESULTS Fourth Quarter 2024 Highlights: ● Sales of $4.3 billion, up 30% in U.S. dollars and 20% organically compared to the fourth quarter of 2023 ● GAAP Diluted EPS of $0.59, up 44% compared to prior year ● Adjusted Diluted

January 22, 2025 8-K

UNITED STATES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 22, 2025 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

October 31, 2024 EX-4.5

Form of Global Note for the 2035 Notes

Exhibit 4.5 THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITARY OR A NOMINEE OF THE DEPOSITARY. THIS NOTE IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND MAY NOT BE TRANSFERRED EXCEPT AS A WHO

October 31, 2024 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 31, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Nu

October 31, 2024 EX-4.6

Form of Global Note for the 2054 Notes

Exhibit 4.6 THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITARY OR A NOMINEE OF THE DEPOSITARY. THIS NOTE IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND MAY NOT BE TRANSFERRED EXCEPT AS A WHO

October 31, 2024 EX-4.4

Form of Global Note for the 2027 Notes

Exhibit 4.4 THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITARY OR A NOMINEE OF THE DEPOSITARY. THIS NOTE IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND MAY NOT BE TRANSFERRED EXCEPT AS A WHO

October 31, 2024 EX-4.3

Officer’s Certificate, dated October 31, 2024, establishing the 5.000% Senior Notes due 2035 and 5.375% Senior Notes due 2054, pursuant to the Indenture (filed as Exhibit 4.3 to the Form 8-K filed on October 31, 2024).*

Exhibit 4.3 AMPHENOL CORPORATION OFFICERS’ CERTIFICATE Pursuant to Section 2.2 of the Indenture Reference is made to the Indenture (the “Indenture”), dated as of March 16, 2023, between Amphenol Corporation, a Delaware corporation (the “Company”), and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”). Capitalized terms used but not otherwise defined herein shall have the re

October 29, 2024 EX-1.1

Underwriting Agreement, dated October 28, 2024, by and between the Company and Barclays Capital Inc., BNP Paribas Securities Corp., BofA Securities, Inc. and HSBC Securities (USA) Inc., as representatives of the several Underwriters named in Schedule A thereto, relating to the offer and sale of $250,000,000 aggregate principal amount of the Additional 2027 Notes, $750,000,000 aggregate principal amount of the 2035 Notes and $500,000,000 aggregate principal amount of the 2054 Notes.

Exhibit 1.1 AMPHENOL CORPORATION $250,000,000 5.050% Senior Notes due 2027 $750,000,000 5.000% Senior Notes due 2035 $500,000,000 5.375% Senior Notes due 2054 UNDERWRITING AGREEMENT October 28, 2024 Underwriting Agreement October 28, 2024 BARCLAYS CAPITAL INC. BNP PARIBAS SECURITIES CORP. BOFA SECURITIES, INC. HSBC Securities (USA) Inc. As Representatives of the several Underwriters named in Sched

October 29, 2024 424B5

AMPHENOL CORPORATION $250,000,000 5.050% Senior Notes due 2027 $750,000,000 5.000% Senior Notes due 2035 $500,000,000 5.375% Senior Notes due 2054

424B5 1 tm2426831-2424b5.htm 424B5 TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(5)  Registration No. 333-270605 PROSPECTUS SUPPLEMENT (To Prospectus dated March 16, 2023) AMPHENOL CORPORATION $250,000,000 5.050% Senior Notes due 2027 $750,000,000 5.000% Senior Notes due 2035 $500,000,000 5.375% Senior Notes due 2054 We are offering $250,000,000 aggregate principal amount of our 5.050% Senior N

October 29, 2024 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) October 28, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File

October 29, 2024 EX-99.1

AMPHENOL CORPORATION ANNOUNCES PRICING OF SENIOR NOTES OFFERING

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL CORPORATION ANNOUNCES PRICING OF SENIOR NOTES OFFERING Wallingford, Connecticut, October 28, 2024. Amphenol Corporation (NYSE: APH) announced today the pricing of its offering of $250 million aggregate principal amount of senior notes due 2027 (the “Additional 2027 Notes”),

October 29, 2024 EX-FILING FEES

Table 1: Newly Registered and Carry Forward Securities

Calculation of Filing Fee Tables S-3 AMPHENOL CORP /DE/ Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Debt 5.

October 28, 2024 FWP

AMPHENOL CORPORATION Final Term Sheet October 28, 2024

Filed Pursuant to Rule 433 Registration Statement No. 333- 270605 October 28, 2024 AMPHENOL CORPORATION Final Term Sheet October 28, 2024 Issuer: Amphenol Corporation Expected Ratings (Moody’s / S&P)*: A3 / BBB+ (Stable / Stable) Trade Date: October 28, 2024 Settlement Date**: October 31, 2024 (T+3) 5.050% Senior Notes due 2027 5.000% Senior Notes due 2035 5.375% Senior Notes due 2054 Principal Am

October 28, 2024 424B3

SUBJECT TO COMPLETION, PRELIMINARY PROSPECTUS SUPPLEMENT DATED OCTOBER 28, 2024

TABLE OF CONTENTS The information in this preliminary prospectus supplement is not complete and may be changed.

October 25, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

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, 2024 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 numbe

October 23, 2024 8-K

UNITED STATES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 23, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

October 23, 2024 EX-99.1

AMPHENOL REPORTS RECORD THIRD QUARTER 2024 RESULTS

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL REPORTS RECORD THIRD QUARTER 2024 RESULTS Third Quarter 2024 Highlights: ● Record sales of $4.04 billion, up 26% in U.S. dollars and 15% organically compared to the third quarter of 2023 ● Record GAAP Diluted EPS of $0.48, up 17% compared to prior year ● Record Adjusted Dil

July 26, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

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 June 30, 2024 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-

July 24, 2024 EX-99.1

AMPHENOL REPORTS RECORD SECOND QUARTER 2024 RESULTS AND ANNOUNCES DIVIDEND INCREASE

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL REPORTS RECORD SECOND QUARTER 2024 RESULTS AND ANNOUNCES DIVIDEND INCREASE Second Quarter 2024 Highlights: ● Record sales of $3.61 billion, up 18% in U.S. dollars and 11% organically compared to the second quarter of 2023 ● GAAP Diluted EPS of $0.41, up 11% compared to prio

July 24, 2024 8-K

UNITED STATES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 24, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File N

July 18, 2024 EX-99.1

AMPHENOL CORPORATION TO ACQUIRE MOBILE NETWORKS BUSINESSES FROM COMMSCOPE

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL CORPORATION TO ACQUIRE MOBILE NETWORKS BUSINESSES FROM COMMSCOPE Transaction highlights: · To acquire CommScope’s Outdoor Wireless Networks and Distributed Antenna Systems businesses for $2.1 billion in cash · Adds advanced antenna and associated interconnect products, tech

July 18, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 18, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File N

June 12, 2024 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 11, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File N

May 31, 2024 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form SD SPECIALIZED DISCLOSURE REPORT Amphenol Corporation (Exact Name of Registrant as Specified in Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form SD SPECIALIZED DISCLOSURE REPORT Amphenol Corporation (Exact Name of Registrant as Specified in Charter) Delaware 1-10879 (State of Incorporation) (Commission File Number) 358 Hall Avenue, Wallingford, Connecticut 06492 (Address of Principal Executive Offices) (Zip Code) Lance E. D’Amico 203 265-8900 (Name and telephone n

May 31, 2024 EX-1.01

Exhibit 1.01 - Conflict Minerals Report as required by Items 1.01 and 1.02 of this Form SD.

Exhibit 1.01 Amphenol Corporation Conflict Minerals Report For The Year Ended December 31, 2023 This report (this “Conflict Minerals Report”) for the year ended December 31, 2023 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended, and Form SD (collectively, the “Rule”). The Rule was adopted by the Securities and Exchange Commission (the “SEC”) to implement

May 21, 2024 EX-99.1

AMPHENOL CORPORATION COMPLETES ACQUISITION OF CIT BUSINESS FROM CARLISLE

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL CORPORATION COMPLETES ACQUISITION OF CIT BUSINESS FROM CARLISLE Wallingford, Connecticut, May 21, 2024. Amphenol Corporation (NYSE: APH) today announced it had completed the acquisition of the Carlisle Interconnect Technologies (CIT) business from Carlisle Companies Incorpo

May 21, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 21, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Nu

May 20, 2024 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Nu

May 20, 2024 EX-99.1

AMPHENOL CORPORATION ANNOUNCES TWO-FOR-ONE STOCK SPLIT

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL CORPORATION ANNOUNCES TWO-FOR-ONE STOCK SPLIT Wallingford, Connecticut, May 20, 2024. Amphenol Corporation (NYSE: APH) today announced that its Board of Directors approved a two-for-one stock split to be paid in the form of a stock dividend. Each Amphenol shareholder of rec

May 17, 2024 S-8

As filed with the Securities and Exchange Commission on May 17, 2024.

As filed with the Securities and Exchange Commission on May 17, 2024. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Amphenol Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 22-2785165 (I.R.S. Empl

May 17, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Table Form S-8 (Form Type) Amphenol Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1)(2) Proposed Maximum Offering Price Per Share(3) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Class A Common Stock, par value $0.

May 16, 2024 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Nu

May 16, 2024 EX-3.1

Certificate of Amendment to the Restated Certificate of Incorporation of Amphenol Corporation, dated May 16, 2024 (filed as Exhibit 3.1 to the Form 8-K filed on May 16, 2024).*

Exhibit 3.1 CERTIFICATE OF AMENDMENT TO THE RESTATED CERTIFICATE OF INCORPORATION OF AMPHENOL CORPORATION Amphenol Corporation, a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware, does hereby certify: 1. The name of the Corporation is Amphenol Corporation (hereinafter, the “Corporation”). 2. Article SEVENTH of the Corporation’s Restated

April 26, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

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 March 31, 2024 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

April 24, 2024 EX-99.1

AMPHENOL REPORTS FIRST QUARTER 2024 RESULTS AND ANNOUNCES NEW STOCK REPURCHASE PROGRAM

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL REPORTS FIRST QUARTER 2024 RESULTS AND ANNOUNCES NEW STOCK REPURCHASE PROGRAM First Quarter 2024 Highlights: ● Sales of $3.26 billion, up 9% in U.S. dollars and 6% organically compared to the first quarter of 2023 ● GAAP Diluted EPS of $0.87, up 23% compared to prior year ●

April 24, 2024 8-K

Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 24, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File

April 8, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

April 5, 2024 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) April 5, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Number

April 5, 2024 EX-4.5

Form of Global Note for the 2034 Notes

Exhibit 4.5 THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITARY OR A NOMINEE OF THE DEPOSITARY. THIS NOTE IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND MAY NOT BE TRANSFERRED EXCEPT AS A WHO

April 5, 2024 EX-4.4

Form of Global Note for the 2029 Notes

Exhibit 4.4 THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITARY OR A NOMINEE OF THE DEPOSITARY. THIS NOTE IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND MAY NOT BE TRANSFERRED EXCEPT AS A WHO

April 5, 2024 EX-4.2

Officer’s Certificate, dated April 5, 2024, establishing the 5.050% Senior Notes due 2027, 5.050% Senior Notes due 2029, and 5.250% Senior Notes due 2034, pursuant to the Indenture (filed as Exhibit 4.2 to the Form 8-K filed on April 5, 2024).*

Exhibit 4.2 AMPHENOL CORPORATION OFFICERS’ CERTIFICATE Pursuant to Section 2.2 of the Indenture Reference is made to the Indenture (the “Indenture”), dated as of March 16, 2023, between Amphenol Corporation, a Delaware corporation (the “Company”), and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”). Capitalized terms used but not otherwise defined herein shall have the re

April 5, 2024 EX-4.3

Form of Global Note for the 2027 Notes

Exhibit 4.3 THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITARY OR A NOMINEE OF THE DEPOSITARY. THIS NOTE IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND MAY NOT BE TRANSFERRED EXCEPT AS A WHO

April 4, 2024 EX-FILING FEES

Calculation of Filing Fee Table (Form Type) Amphenol Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Table 424(b)(5) (Form Type) Amphenol Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Fees to be Paid Debt 5.

April 4, 2024 424B5

AMPHENOL CORPORATION $450,000,000 5.050% Senior Notes due 2027 $450,000,000 5.050% Senior Notes due 2029 $600,000,000 5.250% Senior Notes due 2034

TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(5)  Registration No. 333-270605 PROSPECTUS SUPPLEMENT (To Prospectus dated March 16, 2023) AMPHENOL CORPORATION $450,000,000 5.050% Senior Notes due 2027 $450,000,000 5.050% Senior Notes due 2029 $600,000,000 5.250% Senior Notes due 2034 We are offering $450,000,000 aggregate principal amount of our 5.050% Senior Notes due 2027 (the “2027 notes”), $

April 3, 2024 EX-99.1

AMPHENOL CORPORATION ANNOUNCES PRICING OF SENIOR NOTES OFFERING

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL CORPORATION ANNOUNCES PRICING OF SENIOR NOTES OFFERING Wallingford, Connecticut, April 2, 2024. Amphenol Corporation (NYSE: APH) announced today the pricing of its offering of $450 million aggregate principal amount of senior notes due 2027 (the “2027 Notes”), $450 million

April 3, 2024 EX-1.1

Underwriting Agreement, dated April 2, 2024, by and between the Company and BofA Securities, Inc., Citigroup Global Markets Inc., J.P. Morgan Securities LLC and TD Securities (USA) LLC, as representatives of the several Underwriters named in Schedule A thereto, relating to the offer and sale of $450,000,000 aggregate principal amount of the 2027 Notes, $450,000,000 aggregate principal amount of the 2029 Notes and $600,000,000 aggregate principal amount of the 2034 Notes.

Exhibit 1.1 AMPHENOL CORPORATION    $450,000,000 5.050% Senior Notes due 2027 $450,000,000 5.050% Senior Notes due 2029 $600,000,000 5.250% Senior Notes due 2034 UNDERWRITING AGREEMENT April 2, 2024    Underwriting Agreement    April 2, 2024    BOFA SECURITIES, INC. CITIGROUP GLOBAL MARKETS INC. J.P. MORGAN SECURITIES LLC TD Securities (USA) LLC As Representatives of the several Underwriters named

April 3, 2024 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) April 2, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Nu

April 2, 2024 FWP

AMPHENOL CORPORATION Final Term Sheet April 2, 2024

Filed Pursuant to Rule 433 Registration Statement No. 333- 270605 April 2, 2024 AMPHENOL CORPORATION Final Term Sheet April 2, 2024 Issuer: Amphenol Corporation Expected Ratings (Moody’s / S&P)*: A3 / BBB+ (Stable / Stable) Trade Date: April 2, 2024 Settlement Date**: April 5, 2024 (T+3) 5.050% Senior Notes due 2027 5.050% Senior Notes due 2029 5.250% Senior Notes due 2034 Principal Amount: $450,0

April 2, 2024 424B3

SUBJECT TO COMPLETION, PRELIMINARY PROSPECTUS SUPPLEMENT DATED APRIL 2, 2024

TABLE OF CONTENTS The information in this preliminary prospectus supplement is not complete and may be changed.

March 25, 2024 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

March 22, 2024 EX-10.1

Third Amended and Restated Credit Agreement, dated March 21, 2024, among the Company, certain subsidiaries of the Company, a syndicate of financial institutions and JPMorgan Chase Bank, N.A., acting as the administrative agent (filed as Exhibit 10.1 to the Form 8-K filed on March 22, 2024).*

Exhibit 10.1 EXECUTION VERSION THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of March 21, 2024 among AMPHENOL CORPORATION, as Parent Borrower and a Guarantor AMPHENOL EAST ASIA LIMITED 安費諾(東亞)有限公司, as Hong Kong Borrower and AMPHENOL TECHNOLOGIES HOLDING GMBH, as German Borrower and AMPHENOL BENELUX B.V., as Dutch Borrower and AMPHENOL LIMITED, as UK Borrower and THE OTHER SUBSIDIARIES PARTY

March 22, 2024 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 21, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File

February 13, 2024 SC 13G/A

APH / Amphenol Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0282-amphenolcorporationcl.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 15)* Name of issuer: Amphenol Corporation Class A Title of Class of Securities: Common Stock CUSIP Number: 032095101 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate

February 7, 2024 EX-97.1

Amphenol Corporation Policy for Recovery of Erroneously Awarded Compensation.**

Exhibit 97.1 AMPHENOL CORPORATION POLICY FOR RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION Amphenol Corporation (the “Company”) has adopted this Policy for Recovery of Erroneously Awarded Compensation (the “Policy”), effective as of October 2, 2023 (the “Effective Date”). Capitalized terms used in this Policy but not otherwise defined herein are defined in Section 11. 1. Persons Subject to Policy T

February 7, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2023 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: 1-1087

February 7, 2024 EX-10.28

Amendment to The Amphenol Corporation Employee Savings/401(K) Plan Adoption Agreement, effective January 1, 2024, dated November 30, 2023 (filed as Exhibit 10.28 to the December 31, 2023 Form 10-K).†*

Exhibit 10.28 ADOPTION AGREEMENT ARTICLE 1 PROFIT SHARING/401(K) PLAN 1.01 PLAN INFORMATION (a) Name of Plan: This is the Amphenol Corporation Employee Savings/401(k) Plan (the “Plan”) Pre-Approved Defined Contribution Plan – 06/30/2020 PS Plan 85085-1701083461AA 2020 FMR LLC All rights reserved. 1 AMENDMENT EXECUTION PAGE Plan Name:Amphenol Corporation Employee Savings/401(k) Plan (the “Plan”) Em

February 7, 2024 EX-4.11

Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 (filed as Exhibit 4.11 to the December 31, 2023 Form 10-K).*

Exhibit 4.11 Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 The following description of the capital stock of Amphenol Corporation (the “Company,” “us” or “we”) is a summary and does not purport to be complete. It is subject to and qualified in its entirety by reference to the Company’s Restated Certificate of Incorporation (the

February 7, 2024 EX-10.24

2024 Amphenol Corporation Management Incentive Plan (filed as Exhibit 10.24 to the December 31, 2023 Form 10-K).†*

Exhibit 10.24 2024 AMPHENOL MANAGEMENT INCENTIVE PLAN I. Purpose The purpose of the 2024 Management Incentive Plan (the “2024 Incentive Plan”) is to reward eligible key management personnel of Amphenol Corporation and affiliated operations with performance-based cash bonus payments provided certain goals are achieved. II. Eligibility Generally, participation includes senior management positions, c

February 7, 2024 EX-21.1

Subsidiaries of the Company.**

Exhibit 21.1 Amphenol Corporation Listing of Subsidiaries as of December 31, 2023 State or other Jurisdiction Name of Subsidiary of Incorporation 3395 Walden Avenue Acquisition Corp. New York, U.S.A. Accumetrics, Inc. New York, U.S.A. Add-On Computer Peripherals LLC California, U.S.A. Airmar EMEA EURL France Airmar Technology Corporation New Hampshire, U.S.A. Aither Groupe France All Sensors Corpo

January 30, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 30, 2024 AMPHENOL CORPORA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 30, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

January 30, 2024 EX-99.1

AMPHENOL CORPORATION TO ACQUIRE CIT BUSINESS FROM CARLISLE

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL CORPORATION TO ACQUIRE CIT BUSINESS FROM CARLISLE Transaction highlights: · To acquire Carlisle Interconnect Technologies for $2.0 billion in cash · Adds leading capabilities in harsh environment interconnect solutions · Broad product portfolio highly complementary to Amphe

January 24, 2024 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 24, 2024 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

January 24, 2024 EX-99.1

AMPHENOL REPORTS FOURTH QUARTER AND FULL YEAR 2023 RESULTS

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL REPORTS FOURTH QUARTER AND FULL YEAR 2023 RESULTS Fourth Quarter 2023 Highlights: ● Record Sales of $3.33 billion, up 3% in U.S. dollars and down 1% organically compared to the fourth quarter of 2022 ● GAAP Diluted EPS of $0.83, up 1% compared to prior year ● Record Adjuste

October 27, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

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, 2023 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 numbe

October 27, 2023 EX-10.17

Tenth Amendment to Pension Plan for Employees of Amphenol Corporation as amended and restated effective January 1, 2016, dated August 28, 2023 (filed as Exhibit 10.17 to the September 30, 2023 Form 10-Q).†*

Exhibit 10.17 TENTH AMENDMENT (2023-FIRST) TO THE PENSION PLAN FOR EMPLOYEES OF AMPHENOL CORPORATION AS AMENDED AND RESTATED EFFECTIVE JANUARY 1, 2016 Pursuant to Section 12.1 of the Pension Plan for Employees of Amphenol Corporation as amended and restated effective January 1, 2016 (the “Plan”), the Plan is hereby amended as follows, effective September 1, 2023: 1. Section 7.1(b) is amended in it

October 25, 2023 EX-99.1

AMPHENOL REPORTS THIRD QUARTER 2023 RESULTS AND ANNOUNCES DIVIDEND INCREASE

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL REPORTS THIRD QUARTER 2023 RESULTS AND ANNOUNCES DIVIDEND INCREASE Third Quarter 2023 Highlights: ● Sales of $3.199 billion, down 3% in U.S. dollars and 5% organically compared to the third quarter of 2022 ● GAAP Diluted EPS of $0.83, up 4% compared to prior year ● Adjusted

October 25, 2023 8-K

Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 25, 2023 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

October 6, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 6, 2023 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File

August 4, 2023 EX-3.1

Amphenol Corporation, Fifth Amended and Restated By-laws dated August 3, 2023 (filed as Exhibit 3.1 to the Form 8-K filed on August 4, 2023).*

Exhibit 3.1 AMPHENOL CORPORATION FIFTH AMENDED AND RESTATED BY-LAWS (as of August 3, 2023) Article I MEETINGS OF STOCKHOLDERS Section 1.                Place of Meeting and Notice. Meetings of the stockholders of the Corporation shall be held at such place either within or without the State of Delaware as the Board of Directors may determine. Section 2.                 Section 2.1.         Annual

August 4, 2023 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2023 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File

August 3, 2023 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2023 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File

July 28, 2023 EX-10.22

Amphenol Corporation Form of Director Phantom Stock Award Agreement (filed as Exhibit 10.22 to the June 30, 2023 Form 10-Q).†*

Exhibit 10.22 AMPHENOL CORPORATION NOTICE OF CASH AWARD You have been granted the following Cash Award (the “Cash Award”), which Cash Award has a value equal to the value of a number of shares (“Related Shares”) of common stock (the “Common Stock”) of AMPHENOL CORPORATION (“Amphenol”) as set forth in this Notice of Cash Award: Date of Grant: Name of Recipient: Total Number of Related Shares: Vesti

July 28, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

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 June 30, 2023 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-

July 26, 2023 8-K

UNITED STATES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 26, 2023 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File N

July 26, 2023 EX-99.1

AMPHENOL REPORTS SECOND QUARTER 2023 RESULTS

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL REPORTS SECOND QUARTER 2023 RESULTS Second Quarter 2023 Highlights: ● Sales of $3.054 billion, down 3% in U.S. dollars and 4% organically compared to the second quarter of 2022 ● GAAP Diluted EPS of $0.74, down 3% compared to prior year ● Adjusted Diluted EPS of $0.72, down

May 31, 2023 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form SD SPECIALIZED DISCLOSURE REPORT Amphenol Corporation (Exact Name of Registrant as Specified in Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form SD SPECIALIZED DISCLOSURE REPORT Amphenol Corporation (Exact Name of Registrant as Specified in Charter) Delaware 1-10879 22-2785165 (State of Incorporation) (Commission File Number) (IRS Employer Identification No.) 358 Hall Avenue, Wallingford, Connecticut 06492 (Address of Principal Executive Offices) (Zip Code) Lance

May 31, 2023 EX-1.01

Exhibit 1.01 - Conflict Minerals Report as required by Items 1.01 and 1.02 of this Form.

U.S. Securities and Exchange Commission You’ve Exceeded the SEC’s Traffic Limit Your request rate has exceeded the SEC’s maximum allowable requests per second. Your access to SEC.gov will be limited for 10 minutes. Current guidelines limit each user to a total of no more than 10 requests per second, regardless of the number of machines used to submit requests. To ensure that SEC.gov remains

May 19, 2023 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 18, 2023 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Nu

April 28, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

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 March 31, 2023 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

April 26, 2023 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 26, 2023 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File

April 26, 2023 EX-99

AMPHENOL REPORTS FIRST QUARTER 2023 RESULTS

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL REPORTS FIRST QUARTER 2023 RESULTS First Quarter 2023 Highlights: ● Sales of $2.974 billion, up 1% in U.S. dollars and organically compared to the first quarter of 2022 ● GAAP Diluted EPS of $0.71, up 4% compared to prior year ● Adjusted Diluted EPS of $0.69, up 3% compared

April 10, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defi

March 30, 2023 EX-4.3

Form of Global Note

Exhibit 4.3 THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITARY OR A NOMINEE OF THE DEPOSITARY. THIS NOTE IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND MAY NOT BE TRANSFERRED EXCEPT AS A WHO

March 30, 2023 EX-4.2

Officer’s Certificate, dated March 30, 2023, establishing the 4.750% Senior Notes due 2026 pursuant to the Indenture (filed as Exhibit 4.2 to the Form 8-K filed on March 30, 2023).*

Exhibit 4.2 AMPHENOL CORPORATION OFFICERS’ CERTIFICATE Pursuant to Section 2.2 of the Indenture Reference is made to the Indenture (the “Indenture”), dated as of March 16, 2023, between Amphenol Corporation, a Delaware corporation (the “Company”), and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”). Capitalized terms used but not otherwise defined herein shall have the re

March 30, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of report (Date of earliest event reported) March 30, 2023 AMPHENOL CORPORATIO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of report (Date of earliest event reported) March 30, 2023 AMPHENOL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 1-10879 22-2785165 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

March 28, 2023 424B5

$350,000,000 AMPHENOL CORPORATION 4.750% Senior Notes due 2026

TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(5)  Registration No. 333-270605 PROSPECTUS SUPPLEMENT (To Prospectus dated March 16, 2023) $350,000,000 AMPHENOL CORPORATION 4.750% Senior Notes due 2026 We are offering $350,000,000 aggregate principal amount of our 4.750% Senior Notes due 2026 (the “notes”). We will pay interest on the notes semi-annually on March 30 and September 30 of each year,

March 28, 2023 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of report (Date of earliest event reported) March 27, 2023 AMPHENOL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 1-10879 22-2785165 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

March 28, 2023 EX-99.1

AMPHENOL CORPORATION ANNOUNCES PRICING OF $350,000,000 OF SENIOR NOTES

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL CORPORATION ANNOUNCES PRICING OF $350,000,000 OF SENIOR NOTES Wallingford, Connecticut, March 28, 2023. Amphenol Corporation (NYSE: APH) announced today the pricing of its offering of $350,000,000 aggregate principal amount of senior notes due 2026 (the “Notes”). The Notes

March 28, 2023 EX-FILING FEES

You’ve Exceeded the SEC’s Traffic Limit

Exhibit 107 Calculation of Filing Fee Table 424(b)(5) (Form Type) Amphenol Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Fees to be Paid Debt 4.

March 28, 2023 EX-1.1

Underwriting Agreement, dated March 27, 2023, by and between the Company and BNP Paribas Securities Corp., BofA Securities, Inc. and J.P. Morgan Securities LLC, as representatives of the several Underwriters named in Schedule A thereto, relating to the offer and sale of $350,000,000 aggregate principal amount of the Notes.

Exhibit 1.1 AMPHENOL CORPORATION $350,000,000 4.750% Senior Notes due 2026 UNDERWRITING AGREEMENT March 27, 2023 Underwriting Agreement March 27, 2023 BNP PARIBAS SECURITIES CORP. BOFA SECURITIES, INC. J.P. MORGAN SECURITIES LLC As Representatives of the several Underwriters named in Schedule A hereto c/o BNP Paribas Securities Corp. 787 Seventh Avenue, 3rd Floor New York, New York 10019 c/o BofA

March 27, 2023 424B3

SUBJECT TO COMPLETION, PRELIMINARY PROSPECTUS SUPPLEMENT DATED MARCH 27, 2023

TABLE OF CONTENTS The information in this preliminary prospectus supplement is not complete and may be changed.

March 27, 2023 FWP

AMPHENOL CORPORATION Final Term Sheet March 27, 2023

Filed Pursuant to Rule 433 Registration Statement No. 333- 270605 March 27, 2023 AMPHENOL CORPORATION Final Term Sheet March 27, 2023 Issuer: Amphenol Corporation Expected Ratings (Moody’s / S&P)*: A3 / BBB+ (Stable / Stable) Trade Date: March 27, 2023 Settlement Date**: March 30, 2023 (T+3) Principal Amount: $350,000,000 Maturity Date: March 30, 2026 Coupon (Interest Rate): 4.750% Price to Public

March 16, 2023 EX-4.1

Indenture, dated as of March 16, 2023, between Amphenol Corporation and U.S. Bank Trust Company, National Association, as trustee (filed as Exhibit 4.1 to the Company’s Registration Statement on Form S-3 filed on March 16, 2023).*

Exhibit 4.1 INDENTURE, dated as of March 16, 2023, between AMPHENOL CORPORATION and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee CONTENTS Page Article I DEFINITIONS AND INCORPORATION BY REFERENCE 5 Section 1.1 Definitions 5 Section 1.2 Incorporation by Reference of Trust Indenture Act 10 Section 1.3 Rules of Construction 11 Article II THE SECURITIES 11 Section 2.1 Issuable in Series 1

March 16, 2023 EX-25.1

Form T-1, Statement of Eligibility under the Trust Indenture Act of 1939, as amended, of U.S. Bank Trust Company, National Association, as Trustee under the Indenture for the Senior Debt Securities*

Exhibit 25.1 securities and exchange commission Washington, D.C. 20549 FORM T-1 Statement of Eligibility Under The Trust Indenture Act of 1939 of a Corporation Designated to Act as Trustee Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) ¨ U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 91-1821036 I.R.S. E

March 16, 2023 S-3ASR

As filed with the Securities and Exchange Commission on March 16, 2023

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on March 16, 2023 Registration No.

March 16, 2023 EX-FILING FEES

Filing Fee table*

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Amphenol Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Ca

February 9, 2023 SC 13G/A

APH / Amphenol Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0256-amphenolcorpclassa.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 14)* Name of issuer: Amphenol Corp. Class A Title of Class of Securities: Common Stock CUSIP Number: 032095101 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to de

February 8, 2023 EX-4.09

Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 (filed as Exhibit 4.9 to the December 31, 2022 Form 10-K).*

Exhibit 4.9 Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 The following description of the capital stock of Amphenol Corporation (the “Company,” “us” or “we”) is a summary and does not purport to be complete. It is subject to and qualified in its entirety by reference to the Company’s Restated Certificate of Incorporation (the “

February 8, 2023 EX-10.16

Ninth Amendment to Pension Plan for Employees of Amphenol Corporation as amended and restated effective January 1, 2016, dated December 1, 2022 (filed as Exhibit 10.16 to the December 31, 2022 Form 10-K).†*

Exhibit 10.16 NINTH AMENDMENT (2022-FIRST) TO THE PENSION PLAN FOR EMPLOYEES OF AMPHENOL CORPORATION AS AMENDED AND RESTATED EFFECTIVE JANUARY 1, 2016 Pursuant to Section 12.1 of the Pension Plan for Employees of Amphenol Corporation as amended and restated effective January 1, 2016 (the "Plan"), the Plan is hereby amended as follows, effective January 1, 2023: 1.Exhibit D (Chatham Cable) is amend

February 8, 2023 EX-10.22

2023 Amphenol Corporation Management Incentive Plan (filed as Exhibit 10.22 to the December 31, 2022 Form 10-K).†*

Exhibit 10.22 2023 AMPHENOL MANAGEMENT INCENTIVE PLAN I. Purpose The purpose of the 2023 Management Incentive Plan (the “2023 Incentive Plan”) is to reward eligible key management personnel of Amphenol Corporation and affiliated operations with performance-based cash bonus payments provided certain goals are achieved. II. Eligibility Generally, participation includes senior management positions, c

February 8, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2022 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: 1-1087

February 8, 2023 EX-21.1

Subsidiaries of the Company.**

Exhibit 21.1 Amphenol Corporation Listing of Subsidiaries as of December 31, 2022 State or other Jurisdiction Name of Subsidiary of Incorporation 3395 Walden Avenue Acquisition Corp. New York, U.S.A. Accumetrics, Inc. New York, U.S.A. Add-On Computer Peripherals LLC California, U.S.A. All Sensors Corporation California, U.S.A. All Systems Broadband, Inc. California, U.S.A. Alturna Connect N.V. Net

February 8, 2023 EX-10.25

Amendment to The Amphenol Corporation Employee Savings/401(K) Plan Adoption Agreement, effective January 1, 2023, dated December 19, 2022 (filed as Exhibit 10.25 to the December 31, 2022 Form 10-K).†*

Exhibit 10.25 ADOPTION AGREEMENT ARTICLE 1 PROFIT SHARING/401(K) PLAN 1.01 PLAN INFORMATION (g) Plan Status: (4)þPlan Merger Effective Dates. Certain plan(s) were merged into the Plan on or after the date specified in Subsection 1.01(g)(1) above. Please complete the appropriate subsection(s) of the Plan Mergers Addendum. Pre-Approved Defined Contribution Plan – 06/30/2020 PS Plan 85085-1671095574A

January 25, 2023 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 25, 2023 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

January 25, 2023 EX-99.1

AMPHENOL REPORTS FOURTH QUARTER AND FULL YEAR 2022 RESULTS

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL REPORTS FOURTH QUARTER AND FULL YEAR 2022 RESULTS Fourth Quarter 2022 Highlights: • Sales of $3.239 billion, up 7% in U.S. dollars and 8% organically compared to the fourth quarter of 2021 • GAAP Diluted EPS of $0.82, up 14% compared to prior year • Adjusted Diluted EPS of

January 12, 2023 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 12, 2023 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

January 12, 2023 EX-99.1

PRAHLAD SINGH APPOINTED TO BOARD OF DIRECTORS OF AMPHENOL CORPORATION

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 PRAHLAD SINGH APPOINTED TO BOARD OF DIRECTORS OF AMPHENOL CORPORATION Wallingford, Connecticut. January 12, 2023. Amphenol Corporation (NYSE: APH) today announced that Prahlad Singh, PhD has been appointed to Amphenol’s board of directors. With his appointment, the size of the compa

October 28, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 26, 2022 EX-99.1

AMPHENOL REPORTS RECORD THIRD QUARTER 2022 RESULTS AND ANNOUNCES DIVIDEND INCREASE

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL REPORTS RECORD THIRD QUARTER 2022 RESULTS AND ANNOUNCES DIVIDEND INCREASE Third Quarter 2022 Highlights: ● Record sales of $3.295 billion, up 17% in U.S. dollars and 18% organically compared to the third quarter of 2021 ● Record GAAP and Adjusted Diluted EPS of $0.80, up 19

October 26, 2022 8-K

UNITED STATES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 26, 2022 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

October 12, 2022 CORRESP

* * *

Amphenol Amphenol Corporation World Headquarters 358 Hall Avenue Wallingford, CT 06492 U.

July 29, 2022 EX-10.23

The Amphenol Corporation Employee Savings/401(K) Plan Adoption Agreement as amended and restated effective April 5, 2022, dated April 18, 2022 (filed as Exhibit 10.23 to the June 30, 2022 Form 10-Q).†*

Exhibit 10.23 ? ? PRE-APPROVED DEFINED CONTRIBUTION PLAN (PROFIT SHARING/401(K) PLAN) A FIDELITY PRE-APPROVED PLAN Adoption Agreement No. 001 For use With Fidelity Basic Plan Document No. 17 FMR LLC and its affiliates do not provide tax or legal advice. Nothing herein or in any attachments hereto should be construed, or relied upon, as tax or legal advice. IRS CIRCULAR 230 DISCLOSURE: To the exten

July 29, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

July 27, 2022 EX-99.1

AMPHENOL REPORTS SECOND QUARTER 2022 RECORD RESULTS

Exhibit 99.1 ? ? ? ? Amphenol News Release ? World Headquarters ? 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 ? ? ? AMPHENOL REPORTS SECOND QUARTER 2022 RECORD RESULTS ? Second Quarter 2022 Highlights: ? ? Record sales of $3.137 billion, up 18% in U.S. dollars and organically compared to the second quarter 2021 ? Record GAAP diluted EPS of $0.76, up 29% compared to prior year ?

July 27, 2022 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? FORM 8-K ? CURRENT REPORT ? Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ? Date of Report (Date of earliest event reported): July 27, 2022 ? AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) ? Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commi

May 31, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form SD SPECIALIZED DISCLOSURE REPORT Amphenol Corporation (Exact Name of Registrant as Specified in Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form SD SPECIALIZED DISCLOSURE REPORT Amphenol Corporation (Exact Name of Registrant as Specified in Charter) Delaware 1-10879 22-2785165 (State of Incorporation) (Commission File Number) (IRS Employer Identification No.) 358 Hall Avenue, Wallingford, Connecticut 06492 (Address of Principal Executive Offices) (Zip Code) Lance

May 31, 2022 EX-1.01

Exhibit 1.01 - Conflict Minerals Report as required by Items 1.01 and 1.02 of this Form.

Exhibit 1.01 Amphenol Corporation Conflict Minerals Report For The Year Ended December 31, 2021 This report (this ?Conflict Minerals Report?) for the year ended December 31, 2021 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended, and Form SD (collectively, the ?Rule?). The Rule was adopted by the Securities and Exchange Commission (the ?SEC?) to implement

May 19, 2022 8-K/A

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 18, 2022 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation)

May 18, 2022 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 18, 2022 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Nu

April 29, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 27, 2022 EX-99.1

AMPHENOL REPORTS FIRST QUARTER 2022 RESULTS

Exhibit 99.1 ? ? ? ? Amphenol News Release ? World Headquarters ? 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 ? ? ? AMPHENOL REPORTS FIRST QUARTER 2022 RESULTS ? First Quarter 2022 Highlights: ? ? Sales of $2.952 billion, up 24% in U.S. dollars and 17% organically compared to the first quarter 2021 ? GAAP diluted EPS of $0.68, up 28% compared to prior year ? Adjusted Diluted EPS

April 27, 2022 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? FORM 8-K ? CURRENT REPORT ? Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ? Date of Report (Date of earliest event reported): April 27, 2022 ? AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) ? Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Comm

April 22, 2022 PX14A6G

Amphenol Corporation (APH)

Amphenol Corporation (APH) Shareholder Alert Voluntary submission by John Chevedden, POB 2673, Redondo Beach, CA 90278 Amphenol Shareholder since 2011 Please Vote For Proposal 4 ? Special Shareholder Meeting Improvement Perhaps the most important point regarding Proposal 4 is management clarification of whether only Amphenol record holders can now call for a special shareholder meeting ? thereby excluding shareholders who own their stock trough a stock broker.

April 21, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of report (Date of earliest event reported) April 19, 2022 AMPHENOL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 1-10879 22-2785165 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

April 21, 2022 EX-10.1

Term Loan Credit Agreement, dated as of April 19, 2022, among the Company, certain subsidiaries of the Company, a syndicate of financial institutions and BNP Paribas, acting as the administrative agent (filed as Exhibit 10.1 to the Form 8-K filed on April 21, 2022).*

Exhibit 10.1 Execution Version TERM LOAN CREDIT AGREEMENT dated as of April 19, 2022 among AMPHENOL CORPORATION, as the Borrower THE SUBSIDIARIES PARTY HERETO, as Subsidiary Guarantors The Lenders Party Hereto, and BNP PARIBAS, as Administrative Agent BNP PARIBAS SECURITIES CORP. and BOFA SECURITIES, INC. as Joint Lead Arrangers and Joint Book Runners TABLE OF CONTENTS Section Page ARTICLE I DEFIN

April 11, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? ?

February 9, 2022 EX-10.28

Amendment to The Amphenol Corporation Employee Savings/401(K) Plan Adoption Agreement, effective January 1, 2022, dated November 17, 2021.†**

DocuSign Envelope ID: 6A1D9318-3C32-4D88-BF8C-E8CC91EC8763 Exhibit 10.28 AMENDMENT EXECUTION PAGE ? Plan Name:Amphenol Corporation Employee Savings/401(k) Plan (the "Plan") Employer:Amphenol Corporation ? [Note: These execution pages are to be completed in the event the Employer modifies any prior election(s) or makes a new election(s) in this Adoption Agreement. Attach the amended page(s) of the

February 9, 2022 EX-3.2

Amphenol Corporation, Fourth Amended and Restated By-laws dated February 7, 2022 (filed as Exhibit 3.2 to the December 31, 2021 Form 10-K).*

Exhibit 3.2 ? AMPHENOL CORPORATION ? FOURTH AMENDED AND RESTATED BY-LAWS ? (as of February 7, 2022) ? ARTICLE I ? MEETINGS OF STOCKHOLDERS ? Section 1. Place of Meeting and Notice. Meetings of the stockholders of the Corporation shall be held at such place either within or without the State of Delaware as the Board of Directors may determine. Section 2. Section 2.1. Annual Meetings. Annual meeting

February 9, 2022 EX-21.1

Subsidiaries of the Company.**

Exhibit 21.1 ? Amphenol Corporation Listing of Subsidiaries as of December 31, 2021 ? ? ? ? ? ? ? ? State / Country of ? Name of Subsidiary Incorporation ? ? ? ? 3395 Walden Avenue Acquisition Corp. ? New York, U.S.A. ? Accumetrics, Inc. ? New York, U.S.A. ? Add-On Computer Peripherals LLC ? California, U.S.A. ? All Sensors Corporation ? California, U.S.A. ? All Systems Broadband, Inc. ? Californi

February 9, 2022 EX-10.21

2022 Amphenol Corporation Management Incentive Plan (filed as Exhibit 10.21 to the December 31, 2021 Form 10-K).†*

Exhibit 10.21 ? 2022 AMPHENOL MANAGEMENT INCENTIVE PLAN ? ? I. Purpose ? The purpose of the 2022 Management Incentive Plan (the ?2022 Incentive Plan?) is to reward eligible key management personnel of Amphenol Corporation and affiliated operations with performance-based cash bonus payments provided certain individual, unit and/or Company goals are achieved. ? II. Eligibility ? Participating key ma

February 9, 2022 EX-10.15

Eighth Amendment to Pension Plan for Employees of Amphenol Corporation as amended and restated effective January 1, 2016, dated December 9, 2021 (filed as Exhibit 10.15 to the December 31, 2021 Form 10-K).†*

? Exhibit 10.15 ? EIGHTH AMENDMENT (2021-1) TO THE PENSION PLAN FOR EMPLOYEES OF AMPHENOL CORPORATION ? ? Pursuant to Section 12.1 of the Pension Plan for Employees of Amphenol Corporation amended and restated effective January 1, 2016 (the "Plan"), the Plan is hereby amended as follows, effective January 1, 2021: ? 1.Exhibit B (Hourly Employees?) is amended by revising existing Section 4.1(a)(10)

February 9, 2022 EX-10.27

Amendment to The Amphenol Corporation Employee Savings/401(K) Plan Adoption Agreement, effective November 29, 2021, dated November 12, 2021.†**

Exhibit 10.27 ADOPTION AGREEMENT ARTICLE 1 PROFIT SHARING/401(k) PLAN ? 1.01 PLAN INFORMATION ? (a) Name of Plan: ? This is the Amphenol Corporation Employee Savings/401(k) Plan (the ?Plan?) ? (b) Type of Plan: ? (1)?401(k) Only ? (2)?401(k) and Profit Sharing ? (3)?Profit Sharing Only ? (c)Administrator Name (if not the Employer): ? (d)Plan Year End (month/day):12/31 ? (e)Three Digit Plan Number:

February 9, 2022 EX-4.9

Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 (filed as Exhibit 4.9 to the December 31, 2021 Form 10-K).*

Exhibit 4.9 ? ? Description of the Registrant?s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 ? The following description of the capital stock of Amphenol Corporation (the ?Company,? ?us? or ?we?) is a summary and does not purport to be complete. It is subject to and qualified in its entirety by reference to the Company?s Restated Certificate of Incorporation

February 9, 2022 SC 13G/A

APH / Amphenol Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 13)* Name of issuer: Amphenol Corp. Class A Title of Class of Securities: Common Stock CUSIP Number: 032095101 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is file

February 9, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

January 26, 2022 EX-99.1

AMPHENOL REPORTS RECORD FOURTH QUARTER AND FULL YEAR 2021 RESULTS

Exhibit 99.1 ? ? ? ? Amphenol News Release ? World Headquarters ? 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 ? ? ? AMPHENOL REPORTS RECORD FOURTH QUARTER AND FULL YEAR 2021 RESULTS ? Fourth Quarter 2021 Highlights: ? ? Record sales of $3.027 billion, up 25% in U.S. dollars and 18% organically compared to the fourth quarter 2020 ? Record GAAP diluted EPS of $0.72, up 26% compare

January 26, 2022 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? FORM 8-K ? CURRENT REPORT ? Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ? Date of Report (Date of earliest event reported): January 26, 2022 ? AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) ? Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Co

December 10, 2021 EX-10.1

Second Amended and Restated Credit Agreement, dated November 30, 2021, among the Company, certain subsidiaries of the Company, a syndicate of financial institutions and JPMorgan Chase Bank, N.A., acting as the administrative agent (filed as Exhibit 10.1 to the Form 8-K filed on December 10, 2021).*

Exhibit 10.1 Execution Version SECOND AMENDED AND RESTATED CREDIT AGREEMENT dated as of November 30, 2021 among AMPHENOL CORPORATION, as Parent Borrower and a Guarantor AMPHENOL EAST ASIA LIMITED, as Hong Kong Borrower and AMPHENOL TECHNOLOGIES HOLDING GMBH, as German Borrower and AMPHENOL BENELUX B.V., as Dutch Borrower and AMPHENOL LIMITED, as UK Borrower and THE OTHER SUBSIDIARIES PARTY HERETO,

December 10, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of report (Date of earliest event reported) November 30, 2021 AMPHENOL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 1-10879 22-2785165 (State or Other Jurisdiction of Incorporation) (Commission File Nu

December 6, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 1, 2021 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

December 6, 2021 EX-99.1

AMPHENOL CORPORATION ANNOUNCES ACQUISITION OF HALO TECHNOLOGY AND CLOSING OF SALE OF MTS TEST & SIMULATION BUSINESS

Exhibit 99.1 ? Amphenol News Release ? World Headquarters ? 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 ? ? AMPHENOL CORPORATION ANNOUNCES ACQUISITION OF HALO TECHNOLOGY AND CLOSING OF SALE OF MTS TEST & SIMULATION BUSINESS ? ? Wallingford, Connecticut. December 1, 2021. Amphenol Corporation (NYSE: APH) today announced that it has acquired Halo Technology Limited for approximate

November 8, 2021 S-8

As filed with the Securities and Exchange Commission on November 8, 2021.

S-8 1 tm2131771d1s8.htm FORM S-8 As filed with the Securities and Exchange Commission on November 8, 2021. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-2785165 (State or other jurisdiction of (I.R.S

October 29, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 27, 2021 EX-99.1

AMPHENOL REPORTS RECORD THIRD QUARTER 2021 RESULTS AND ANNOUNCES DIVIDEND INCREASE

Exhibit 99.1 ? ? ? ? Amphenol News Release ? World Headquarters ? 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 ? ? ? AMPHENOL REPORTS RECORD THIRD QUARTER 2021 RESULTS AND ANNOUNCES DIVIDEND INCREASE ? Third Quarter 2021 Highlights1: ? ? Record sales of $2.818 billion, up 21% in U.S. dollars and 13% organically2 compared to the third quarter 2020 ? Record GAAP diluted EPS of $0.6

October 27, 2021 8-K

Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? FORM 8-K ? CURRENT REPORT ? Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ? Date of Report (Date of earliest event reported): October 27, 2021 ? AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) ? Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Co

September 14, 2021 EX-4.2

Officer’s Certificate, dated September 14, 2021, establishing the 2.200% Senior Notes due 2031 pursuant to the Indenture (filed as Exhibit 4.2 to the Form 8-K filed on September 14, 2021).*

Exhibit 4.2 Amphenol Corporation OFFICERS? CERTIFICATE Pursuant to Section 2.2 of the Indenture Reference is made to the Indenture (the ?Indenture?), dated as of November 5, 2009, between Amphenol Corporation, a Delaware corporation (the ?Company?), and The Bank of New York Mellon, as trustee (the ?Trustee?). Capitalized terms used but not otherwise defined herein shall have the respective meaning

September 14, 2021 EX-4.3

Form of Global Note

Exhibit 4.3 Form of Note THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITARY OR A NOMINEE OF THE DEPOSITARY. THIS NOTE IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND MAY NOT BE TRANSFERRED EX

September 14, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of report (Date of earliest event reported) September 14, 2021 AMPHENOL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 1-10879 22-2785165 (State or Other Jurisdiction of Incorporation) (Commission File N

September 9, 2021 EX-1.1

Underwriting Agreement, dated September 7, 2021, by and between the Company and Citigroup Global Markets Inc., MUFG Securities Americas Inc. and TD Securities (USA) LLC, as representatives of the several Underwriters named in Schedule A thereto, relating to the offer and sale of $750,000,000 aggregate principal amount of the Notes.

Exhibit 1.1 AMPHENOL CORPORATION $750,000,000 2.200% Senior Notes due 2031 UNDERWRITING AGREEMENT September 7, 2021 Underwriting Agreement September 7, 2021 Citigroup Global Markets Inc. MUFG Securities Americas Inc. TD SEcurities (usa) llc As Representatives of the several Underwriters named in Schedule A hereto c/o Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013 c/o M

September 9, 2021 EX-99.1

AMPHENOL CORPORATION ANNOUNCES PRICING OF $750,000,000 OF SENIOR NOTES

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL CORPORATION ANNOUNCES PRICING OF $750,000,000 OF SENIOR NOTES Wallingford, Connecticut, September 7, 2021. Amphenol Corporation (NYSE: APH) (the ?Company?) announced today the pricing of its offering of $750,000,000 aggregate principal amount of senior notes due 2031 (the ?

September 9, 2021 424B5

CALCULATION OF REGISTRATION FEE

TABLE OF CONTENTS CALCULATION OF REGISTRATION FEE ? ? Title of Each Class of Securities to be Registered ? ? ? Amount to be Registered ? ? ? Maximum Offering Price per Security ? ? ? Maximum Aggregate Offering Price ? ? ? Amount of Registration Fee(1) ? 2.

September 9, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of report (Date of earliest event reported) September 7, 2021 AMPHENOL CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 1-10879 22-2785165 (State or Other Jurisdiction of Incorporation) (Commission File Nu

September 8, 2021 FWP

AMPHENOL CORPORATION Final Term Sheet September 7, 2021

Filed Pursuant to Rule 433 Registration Statement No. 333- 237221 September 7, 2021 AMPHENOL CORPORATION Final Term Sheet September 7, 2021 Issuer: Amphenol Corporation Expected Ratings (Moody?s / S&P)*: Baa1 / BBB+ Trade Date: September 7, 2021 Settlement Date**: September 14, 2021 (T+5) Principal Amount: $750,000,000 Maturity Date: September 15, 2031 Coupon (Interest Rate): 2.200% Price to Publi

September 8, 2021 424B3

SUBJECT TO COMPLETION, PRELIMINARY PROSPECTUS SUPPLEMENT DATED SEPTEMBER 7, 2021

TABLE OF CONTENTS The information in this preliminary prospectus supplement is not complete and may be changed.

September 7, 2021 424B3

SUBJECT TO COMPLETION, PRELIMINARY PROSPECTUS SUPPLEMENT DATED SEPTEMBER 7, 2021

TABLE OF CONTENTS The information in this preliminary prospectus supplement is not complete and may be changed.

July 30, 2021 EX-3.1

Restated Certificate of Incorporation of Amphenol Corporation, dated May 19, 2021 (filed as Exhibit 3.1 to the June 30, 2021 Form 10-Q).*

EXHIBIT 3.1 RESTATED CERTIFICATE OF INCORPORATION OF AMPHENOL CORPORATION ? AMPHENOL CORPORATION, a corporation organized and existing under the General Corporation Law of the State of Delaware, DOES HEREBY CERTIFY: 1.The name of the Corporation is Amphenol Corporation (hereinafter the ?Corporation?). The date of filing of its original certificate of incorporation with the Secretary of State of th

July 30, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

July 29, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? FORM 8-K ? CURRENT REPORT ? Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ? Date of Report (Date of earliest event reported): July 27, 2021 ? AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) ? Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commi

July 29, 2021 EX-99.1

NANCY ALTOBELLO APPOINTED TO BOARD OF DIRECTORS OF AMPHENOL CORPORATION

Exhibit 99.1 ? Amphenol News Release ? World Headquarters ? 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 ? ? NANCY ALTOBELLO APPOINTED TO BOARD OF DIRECTORS OF AMPHENOL CORPORATION ? ? Wallingford, Connecticut. July 27, 2021. Amphenol Corporation (NYSE: APH) today announced that Nancy Altobello has been appointed to Amphenol?s board of directors. With her appointment, the size of

July 28, 2021 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? FORM 8-K ? CURRENT REPORT ? Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ? Date of Report (Date of earliest event reported): July 28, 2021 ? AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) ? Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commi

July 28, 2021 EX-99.1

AMPHENOL REPORTS SECOND QUARTER 2021 RECORD RESULTS

EX-99.1 2 aph-20210728xex99d1.htm EX-99.1 Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL REPORTS SECOND QUARTER 2021 RECORD RESULTS Second Quarter 2021 Highlights1: ● Record sales of $2.654 billion, up 34% in U.S. dollars and 22% organically2 compared to the second quarter 2020 ● GAAP diluted EPS of $0.59, up 40% compar

June 1, 2021 EX-1.01

Exhibit 1.01 - Conflict Minerals Report as required by Items 1.01 and 1.02 of this Form.

Exhibit 1.01 Amphenol Corporation Conflict Minerals Report For The Year Ended December 31, 2020 This report (this “Conflict Minerals Report”) for the year ended December 31, 2020 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended, and Form SD (collectively, the “Rule”). The Rule was adopted by the Securities and Exchange Commission (the “SEC”) to implement

June 1, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form SD SPECIALIZED DISCLOSURE REPORT Amphenol Corporation (Exact Name of Registrant as Specified in Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form SD SPECIALIZED DISCLOSURE REPORT Amphenol Corporation (Exact Name of Registrant as Specified in Charter) Delaware 1-10879 22-2785165 (State of Incorporation) (Commission File Number) (IRS Employer Identification No.) 358 Hall Avenue, Wallingford, Connecticut 06492 (Address of Principal Executive Offices) (Zip Code) Lance

May 19, 2021 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 19, 2021 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Nu

April 30, 2021 EX-10.25

Amendment to The Amphenol Corporation Employee Savings/401(K) Plan Adoption Agreement, effective March 1, 2021, dated February 22, 2021 (filed as Exhibit 10.25 to the March 31, 2021 10-Q).†*

DocuSign Envelope ID: 632B740E-D373-41CB-A78B-D169837462A7 Exhibit 10.25 ADOPTION AGREEMENT ARTICLE 1 PROFIT SHARING/401(k) PLAN ? 1.01PLAN INFORMATION (a)Name of Plan: This is the Amphenol Corporation Employee Savings/401(k) Plan (the "Plan") (b)Type of Plan: (1)?401(k) Only (2)?401(k) and Profit Sharing (3)?Profit Sharing Only (c)Administrator Name (if not the Employer): (d)Plan Year End (month/

April 30, 2021 10-Q

Quarterly Report -

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 28, 2021 EX-99.1

AMPHENOL REPORTS FIRST QUARTER 2021 RESULTS AND ANNOUNCES NEW STOCK REPURCHASE PROGRAM

Exhibit 99.1 ? ? ? ? Amphenol News Release ? World Headquarters ? 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 ? ? AMPHENOL REPORTS FIRST QUARTER 2021 RESULTS AND ANNOUNCES NEW STOCK REPURCHASE PROGRAM ? First Quarter 2021 Highlights: ? Sales of $2.377 billion, up 28% in U.S. dollars and 23% organically1 compared to the first quarter 2020 ? GAAP diluted EPS of $0.53, up 33% compa

April 28, 2021 8-K

Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? FORM 8-K ? CURRENT REPORT ? Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ? Date of Report (Date of earliest event reported): April 28, 2021 ? AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) ? Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Comm

April 12, 2021 DEF 14A

Amended and Restated 2017 Stock Purchase and Option Plan for Key Employees of Amphenol and Subsidiaries (filed as Annex A to the Company’s Definitive Proxy Statement on Schedule 14A for its 2021 Annual Meeting of Stockholders, filed on April 12, 2021).†*

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 7, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 7, 2021 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File N

April 7, 2021 EX-99.1

AMPHENOL COMPLETES ACQUISITION OF MTS SYSTEMS

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL COMPLETES ACQUISITION OF MTS SYSTEMS Wallingford, Connecticut. April 7, 2021. Amphenol Corporation (NYSE: APH), a leading global provider of high-technology interconnect, antenna and sensor solutions, today announced that it has completed its acquisition of MTS Systems Corp

April 2, 2021 PRE 14A

- PRE 14A

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 12, 2021 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? FORM 8-K ? CURRENT REPORT ? Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ? Date of Report (Date of earliest event reported): March 12, 2021 ? AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) ? Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Comm

February 10, 2021 EX-21.1

Subsidiaries of the Company.**

Exhibit 21.1 Amphenol Corporation Listing of Subsidiaries as of December 31, 2020 State / Country of Name of Subsidiary Incorporation All Sensors Corporation California, U.S.A. All Systems Broadband, Inc. California, U.S.A. American Conec Corporation North Carolina, U.S.A. Amphenol Adronics, Inc. Delaware, U.S.A. Amphenol Advanced Sensors Germany GmbH Germany Amphenol Advanced Sensors Puerto Rico,

February 10, 2021 EX-4.10

Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 (filed as Exhibit 4.10 to the December 31, 2020 10-K).*

Exhibit 4.10 Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 The following description of the capital stock of Amphenol Corporation (the “Company,” “us” or “we”) is a summary and does not purport to be complete. It is subject to and qualified in its entirety by reference to the Company’s Restated Certificate of Incorporation (the

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 12)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 12)* Name of issuer: Amphenol Corp. Class A Title of Class of Securities: Common Stock CUSIP Number: 032095101 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is file

February 10, 2021 EX-10.20

2021 Amphenol Corporation Management Incentive Plan (filed as Exhibit 10.20 to the December 31, 2020 10-K).†*

Exhibit 10.20 2021 AMPHENOL MANAGEMENT INCENTIVE PLAN I. Purpose The purpose of the 2021 Management Incentive Plan (the “2021 Incentive Plan”) is to reward eligible key employees of Amphenol Corporation and affiliated operations with performance-based cash bonus payments provided certain individual, operating unit and/or Company goals are achieved. II. Eligibility Key management personnel and targ

February 10, 2021 EX-10.24

Amendment to The Amphenol Corporation Employee Savings/401(K) Plan Adoption Agreement, effective January 1, 2021, dated October 8, 2020 (filed as Exhibit 10.24 to the December 31, 2020 10-K).†*

DocuSign Envelope ID: 8FB21A2D-C6EC-4CA4-A788-084420689F12 Exhibit 10.24 AMENDMENT EXECUTION PAGE Plan Name:Amphenol Corporation Employee Savings/401(k) Plan (the "Plan") Employer:Amphenol Corporation [Note: These execution pages are to be completed in the event the Employer modifies any prior election(s) or makes a new election(s) in this Adoption Agreement. Attach the amended page(s) of the Adop

February 10, 2021 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2020 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: 1-1087

February 8, 2021 S-8 POS

- S-8 POS

As filed with the Securities and Exchange Commission on February 8, 2021 Registration No.

February 8, 2021 S-8 POS

- S-8 POS

As filed with the Securities and Exchange Commission on February 8, 2021 Registration No.

February 4, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 3, 2021 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

January 27, 2021 8-K

Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 27, 2021 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

January 27, 2021 EX-99.1

AMPHENOL REPORTS RECORD FOURTH QUARTER 2020 RESULTS AND ANNOUNCES 2-FOR-1 STOCK SPLIT

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 AMPHENOL REPORTS RECORD FOURTH QUARTER 2020 RESULTS AND ANNOUNCES 2-FOR-1 STOCK SPLIT Fourth Quarter 2020 Highlights: ● Record sales of $2.426 billion, up 13% in U.S. dollars and 11% organically compared to the fourth quarter 2019 ● Record GAAP diluted EPS of $1.15, up 12% compared

January 19, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 19, 2021 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

January 19, 2021 EX-99.1

ITW TO ACQUIRE MTS TEST & SIMULATION BUSINESS FROM AMPHENOL

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 ITW TO ACQUIRE MTS TEST & SIMULATION BUSINESS FROM AMPHENOL Glenview, Illinois and Wallingford, Connecticut. January 19, 2021. Illinois Tool Works Inc. (NYSE: ITW), a global multi-industrial manufacturing leader, and Amphenol Corporation (NYSE: APH), a leading global provider of hig

December 9, 2020 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 8, 2020 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

December 9, 2020 EX-99.1

AMPHENOL CORPORATION TO ACQUIRE MTS SYSTEMS

Exhibit 99.1 News Release World Headquarters 358 Hall Avenue 14000 Technology Drive Wallingford, CT 06492 Eden Prairie, MN 55344-2290 Telephone (203) 265-8900 Telephone (952) 937-4000 FOR IMMEDIATE RELEASE AMPHENOL CORPORATION TO ACQUIRE MTS SYSTEMS Wallingford, Connecticut and Eden Prairie, Minn. December 9, 2020. Amphenol Corporation (NYSE: APH) (“Amphenol”), a leading global provider of high-te

October 23, 2020 10-Q

Quarterly Report - 10-Q

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, 2020 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 numbe

October 21, 2020 8-K

Results of Operations and Financial Condition, Other Events - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 21, 2020 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission Fil

October 21, 2020 EX-99.1

THIRD QUARTER 2020 RECORD RESULTS AND DIVIDEND INCREASE REPORTED BY AMPHENOL CORPORATION

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 FOR IMMEDIATE RELEASE For Further Information: Craig A. Lampo Senior Vice President and Chief Financial Officer 203-265-8625 www.amphenol.com THIRD QUARTER 2020 RECORD RESULTS AND DIVIDEND INCREASE REPORTED BY AMPHENOL CORPORATION Wallingford, Connecticut. October 21, 2020. Amphenol

September 18, 2020 CORRESP

* * *

Amphenol Amphenol Corporation World Headquarters 358 Hall Avenue Wallingford, CT 06492, U.

July 29, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2020 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File N

July 29, 2020 EX-99.1

RITA LANE APPOINTED TO BOARD OF DIRECTORS OF AMPHENOL CORPORATION

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 FOR IMMEDIATE RELEASE For Further Information: Craig A. Lampo Senior Vice President and Chief Financial Officer 203-265-8625 www.amphenol.com RITA LANE APPOINTED TO BOARD OF DIRECTORS OF AMPHENOL CORPORATION Wallingford, Connecticut. July 29, 2020. Amphenol Corporation (NYSE: APH) t

July 24, 2020 10-Q

Quarterly Report - 10-Q

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 June 30, 2020 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-

July 22, 2020 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 22, 2020 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File N

July 22, 2020 EX-99.1

SECOND QUARTER 2020 RESULTS REPORTED BY AMPHENOL CORPORATION

Exhibit 99.1 Amphenol News Release World Headquarters 358 Hall Avenue Wallingford, CT 06492 Telephone (203) 265-8900 FOR IMMEDIATE RELEASE For Further Information: Craig A. Lampo Senior Vice President and Chief Financial Officer 203-265-8625 www.amphenol.com SECOND QUARTER 2020 RESULTS REPORTED BY AMPHENOL CORPORATION Wallingford, Connecticut. July 22, 2020. Amphenol Corporation (NYSE: APH) report

June 1, 2020 SD

- FORM SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form SD SPECIALIZED DISCLOSURE REPORT Amphenol Corporation (Exact Name of Registrant as Specified in Charter) Delaware 1-10879 22-2785165 (State of Incorporation) (Commission File Number) (IRS Employer Identification No.) 358 Hall Avenue, Wallingford, Connecticut 06492 (Address of Principal Executive Offices) (Zip Code) Lance

June 1, 2020 EX-1.01

Exhibit 1.01 - Conflict Minerals Report as required by Items 1.01 and 1.02 of this Form.

Exhibit 1.01 Amphenol Corporation Conflict Minerals Report For The Year Ended December 31, 2019 This report (this “Conflict Minerals Report”) for the year ended December 31, 2019 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended, and Form SD (collectively, the “Rule”). The Rule was adopted by the Securities and Exchange Commission (the “SEC”) to implement

May 26, 2020 CORRESP

* * *

Amphenol Amphenol Corporation World Headquarters 358 Hall Avenue Wallingford, CT 06492, U.

May 21, 2020 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2020 AMPHENOL CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-10879 22-2785165 (State or other jurisdiction of incorporation) (Commission File Nu

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