APH

Date Exercisable: 20% per year over a five year period commencing on the first anniversary of date of grant.

Stock awards granted pursuant to the terms of the 2024 Restricted Stock Plan for Directors of Amphenol Corporation.

Stock awards granted pursuant to the terms of the 2024 Restricted Stock Plan for Directors of Amphenol Corporation.

Stock awards granted pursuant to the terms of the 2024 Restricted Stock Plan for Directors of Amphenol Corporation.

Date Exercisable: 20% per year over a five year period commencing on the first anniversary of date of grant.

Date Exercisable: 20% per year over a five year period commencing on the first anniversary of date of grant.

Date Exercisable: 20% per year over a five year period commencing on the first anniversary of date of grant.

Stock awards granted pursuant to the terms of the 2024 Restricted Stock Plan for Directors of Amphenol Corporation.

Stock awards granted pursuant to the terms of the 2024 Restricted Stock Plan for Directors of Amphenol Corporation.

Stock awards granted pursuant to the terms of the 2024 Restricted Stock Plan for Directors of Amphenol Corporation.

Date Exercisable: 20% per year over a five year period commencing on the first anniversary of date of grant.

Stock awards granted pursuant to the terms of the 2024 Restricted Stock Plan for Directors of Amphenol Corporation.

Date Exercisable: 20% per year over a five year period commencing on the first anniversary of date of grant.

Date Exercisable: 20% per year over a five year period commencing on the first anniversary of date of grant.

Date Exercisable: 20% per year over a five year period commencing on the first anniversary of date of grant.

This transaction represents a transfer of shares for estate planning purposes from the Reporting Person to a family trust in exchange for a note.

The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was executed in multiple trades ranging from $143.1550 to $143.2514.

The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was executed in multiple trades ranging from $142.00 to $142.1351.

The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was executed in multiple trades ranging from $143.50 to $146.30.

The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was executed in multiple trades ranging from $149.36 to $150.59.

The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was executed in multiple trades ranging from $149.62 to $150.17.

Includes 41,246 shares transferred from the reporting person's 2024 #2 GRAT since the date of his last Form 4.

Includes 13,169 shares transferred from the reporting person's 2025 #1 GRAT since the date of his last Form 4.

Includes 5,665 shares transferred from the reporting person's 2025 GRAT since the date of his last Form 4.

Includes 25,000 shares transferred to the reporting person's 2026 GRAT since the date of his last Form 4.

The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was executed in multiple trades ranging from $145.295 to $148.77.

The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was executed in multiple trades ranging from $145.2400 to $148.24.

The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was executed in multiple trades at prices ranging from $128.2928 to $128.7052.

Distribution from the reporting person's grantor retained annutity trust for no consideration.

Stock awards granted pursuant to the terms of the 2024 Restricted Stock Plan for Directors of Amphenol Corporation.