1 unchanged sentence
Trading Arrangements
−Removed: During the three months ended September 30, 2025, no director or officer of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or “ no n-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408 of Regulation S-K.
+Added: During the three months ended March 31, 2026, no director or officer of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or “ no n-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408 of Regulation S-K.
Restated Certificate of Incorporation of Amphenol Corporation, dated May 19, 2021 (filed as Exhibit 3.1 to the June 30, 2021 Form 10-Q).*
3 unchanged sentences
Indenture, dated as of November 5, 2009, between Amphenol Corporation and The Bank of New York Mellon, as trustee (filed as Exhibit 4.1 to the Form 8-K filed on November 5, 2009).*
−Removed: Indenture, dated as of October 8, 2018, between Amphenol Technologies Holding GmbH, Amphenol Corporation and The Bank of New York Mellon, as trustee (filed as Exhibit 4.1 to the Form 8-K filed on October 9, 2018).*
−Removed: Indenture, dated as of May 4, 2020, between Amphenol Technologies Holding GmbH, Amphenol Corporation and The Bank of New York Mellon, as trustee (filed as Exhibit 4.1 to the Form 8-K filed on May 5, 2020).*
−Removed: Indenture, dated as of March 16, 2023, between Amphenol Corporation and U.S.
+Added: Indenture, dated as of October 8, 2018, among Amphenol Technologies Holding GmbH, Amphenol Corporation and The Bank of New York Mellon, as trustee (filed as Exhibit 4.1 to the Form 8-K filed on October 9, 2018).*
+Added: Indenture, dated as of May 4, 2020, among Amphenol Technologies Holding GmbH, Amphenol Corporation and The Bank of New York Mellon, as trustee (filed as Exhibit 4.1 to the Form 8-K filed on May 5, 2020).*
+Added: Indenture, dated as of March 16, 2023, among 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).*
−Removed: Officer’s Certificate, dated April 5, 2017, establishing both the 2.200% Senior Notes due 2020 and the 3.200% Senior Notes due 2024 pursuant to the Indenture (filed as Exhibit 4.2 to the Form 8-K filed on April 5, 2017).*
+Added: Indenture, dated as of March 30, 2026, among Amphenol Technologies Holding GmbH, Amphenol Corporation, and U.S.
+Added: Bank Trust Company, National Association, as trustee (filed as Exhibit 4.1 to the Form 8-K filed on March 30, 2026).*
Officer’s Certificate, dated January 9, 2019, establishing the 4.350% Senior Notes due 2029 pursuant to the Indenture (filed as Exhibit 4.2 to the Form 8-K filed on January 10, 2019).*
Officer’s Certificate, dated September 10, 2019, establishing the 2.800% Senior Notes due 2030 pursuant to the Indenture (filed as Exhibit 4.2 to the Form 8-K filed on September 10, 2019).*
−Removed: Officer’s Certificate, dated February 20, 2020, establishing the 2.050% Senior Notes due 2025 pursuant to the Indenture (filed as Exhibit 4.2 to the Form 8-K filed on February 20, 2020).*
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).*
4 unchanged sentences
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).*
+Added: Officers’ Certificate, dated November 10, 2025, establishing the Floating Rate Senior Notes due 2027, 3.800% Senior Notes due 2027, 3.900% Senior Notes due 2028, 4.125% Senior Notes due 2030, 4.400% Senior Notes due 2033, 4.625% Senior Notes due 2036 and 5.300% Senior Notes due 2055, pursuant to the Indenture (filed as Exhibit 4.2 to the Form 8-K filed on November 10, 2025).*
+Added: Officers’ Certificate, dated March 30, 2026, establishing the 3.625% Senior Notes due 2031, pursuant to the Indenture (filed as Exhibit 4.2 to the Form 8-K filed on March 30, 2026).*
Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 (filed as Exhibit 4.14 to the December 31, 2025 Form 10-K).*
18 unchanged sentences
Twelfth Amendment to Pension Plan for Employees of Amphenol Corporation, as amended and restated effective January 1, 2016, dated December 19, 2024 (filed as Exhibit 10.19 to the December 31, 2024 Form 10-K).†*
+Added: Thirteenth Amendment to Pension Plan for Employees of Amphenol Corporation, as amended and restated effective January 1, 2016, dated December 22, 2025 (filed as Exhibit 10.20 to the December 31, 2025 Form 10-K).†*
+Added: Fourteenth Amendment to Pension Plan for Employees of Amphenol Corporation, as amended and restated effective January 1, 2016, dated December 22, 2025 (filed as Exhibit 10.21 to the December 31, 2025 Form 10-K).†*
Amended and Restated Amphenol Corporation Supplemental Employee Retirement Plan (filed as Exhibit 10.24 to the December 31, 2008 Form 10-K).†*
8 unchanged sentences
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).†*
+Added: Amendment to The Amphenol Corporation Employee Savings/401(K) Plan Adoption Agreement, effective January 1, 2026, dated December 23, 2025 (filed as Exhibit 10.32 to the December 31, 2025 Form 10-K).†*
Amended and Restated Amphenol Corporation Supplemental Defined Contribution Plan (filed as Exhibit 10.30 to the September 30, 2011 Form 10-Q).†*
1 unchanged sentence
Amphenol Corporation Supplemental Defined Contribution Plan, as amended effective January 1, 2019 (filed as Exhibit 10.28 to the December 31, 2018 Form 10-K).†*
−Removed: Commercial Paper Program form of Dealer Agreement dated as of August 29, 2014 between the Company, Citibank Global Markets and JP Morgan Securities LLC (filed as Exhibit 10.1 to the Form 8-K filed on September 5, 2014).*
−Removed: Commercial Paper Program Dealer Agreement dated as of July 10, 2018 between Amphenol Technologies Holding GmbH (as issuer), Amphenol Corporation (as guarantor), Barclays Bank PLC (as Arranger), and Barclays Bank PLC and Commerzbank Aktiengesellschaft (as Original Dealers) (filed as Exhibit 10.1 to the Form 8-K filed on July 11, 2018).*
+Added: Commercial Paper Program form of Dealer Agreement dated as of August 29, 2014 among the Company, Citibank Global Markets and JP Morgan Securities LLC (filed as Exhibit 10.1 to the Form 8-K filed on September 5, 2014).*
+Added: Commercial Paper Program Dealer Agreement dated as of July 10, 2018 among Amphenol Technologies Holding GmbH (as issuer), Amphenol Corporation (as guarantor), Barclays Bank PLC (as Arranger), and Barclays Bank PLC and Commerzbank Aktiengesellschaft (as Original Dealers) (filed as Exhibit 10.1 to the Form 8-K filed on July 11, 2018).*
Three-Year Term Loan Credit Agreement dated August 22, 2025, 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 August 25, 2025).*˄
21 unchanged sentences
AMPHENOL CORPORATION
−Removed: Senior Vice President and Chief Financial Officer
+Added: Executive Vice President and Chief Financial Officer
(Authorized Signatory
and Principal Financial Officer)
−Removed: October 24, 2025
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.