AMPHENOL CORP /DE/ (APH) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-04 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: AMPHENOL CORP /DE/ (APH) CIK: 0000820313 --- Reporting Owner --- Name: Lampo Craig A CIK: 0001303827 Role: Officer (EVP& CFO) --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-08-04 | Code: M (Exercise of derivative) Shares: +193,200 | Price: $22.37 Total Value: $4,322,367.00 Shares Owned After: 283,865 | Ownership: D (Direct) Footnotes: [F1] Includes 19,758 shares transferred from the reporting person's 2024 #1 GRAT since the date of his last Form 4. [Transaction #2] Security: Class A Common Stock Date: 2026-08-04 | Code: S (Open market sale) Shares: -193,200 | Price: $167.31 Total Value: $32,324,156.76 Shares Owned After: 90,665 | Ownership: D (Direct) Footnotes: [F2] 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. [F3] This transaction was executed in multiple trades ranging from $166.53 to $168.00. --- Derivative Transactions --- [Transaction #1] Security: Stock Option Date: 2026-08-04 | Code: M (Exercise of derivative) Shares: -193,200 | Price: $0.00 Exercisable: N/A | Expires: 2029-05-23 Shares Owned After: 193,200 | Ownership: D (Direct) --- Holdings --- [Holding #1] Security: Class A Common Stock Ownership: I (Indirect) [Holding #2] Security: Class A Common Stock Ownership: I (Indirect) [Holding #3] Security: Class A Common Stock Ownership: I (Indirect) [Holding #4] Security: Class A Common Stock Ownership: I (Indirect) --- Footnotes (Complete Index) --- F1: Includes 19,758 shares transferred from the reporting person's 2024 #1 GRAT since the date of his last Form 4. F2: 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. F3: This transaction was executed in multiple trades ranging from $166.53 to $168.00. --- Signature --- /s/ /s/ Lance E. D'Amico, POA (2026-08-05)