[Form 4] AMPHENOL CORP /DE/ Insider Trading Activity

Rhea-AI Filing Summary

Amphenol (APH) disclosed insider transactions by its Senior VP & CFO on 11/11/2025. The reporting person exercised 300,000 stock options at $21.995 per share and sold 258,000 Class A shares at a weighted average price of $143.2022. Separately, the Lampo Family Trust exercised 40,076 options at $21.995 and sold 40,076 shares at a weighted average price of $143.5015.

Following these transactions, directly held Class A shares were 167,695. Indirect holdings included 39,884 by the Lampo Family Trust, 58,116 by the Craig A. Lampo 2025 GRAT #1, 74,305 by the 2024 GRAT #1, and 160,000 by the 2024 GRAT #2. Derivative holdings listed 100,000 stock options directly after the reported activity. Prices reflect weighted averages, with trades executed in multiple lots as noted.

Insider Trade Summary

Net Seller: 298,076 shares ($42,697,134)

Net Sell 9 txns

Insider Lampo Craig A

Role SR VP & CFO

Sold 298,076 shs ($42.70M)

Type	Security	Shares	Price	Value
Exercise	Stock Option	300,000	$0.00	--
Exercise	Stock Option	40,076	$0.00	--
Exercise	Class A Common Stock	300,000	$21.995	$6.60M
Sale	Class A Common Stock	258,000	$143.2022	$36.95M
Exercise	Class A Common Stock	40,076	$21.995	$881K
Sale	Class A Common Stock	40,076	$143.5015	$5.75M
holding	Class A Common Stock	--	--	--
holding	Class A Common Stock	--	--	--
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Stock Option — 100,000 shares (Direct); Stock Option — 0 shares (Indirect, By Lampo Family Trust); Class A Common Stock — 425,695 shares (Direct); Class A Common Stock — 79,960 shares (Indirect, By Lampo Family Trust)

Footnotes (1)

1. 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 $142.5000 to $143.8400. This transaction was executed in multiple trades ranging from $143.5000 to $143.5708.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Lampo Craig A

(Last) (First) (Middle)

C/O AMPHENOL CORPORATION

358 HALL AVENUE

(Street)

WALLINGFORD CT 06492

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
AMPHENOL CORP /DE/ [ APH ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SR VP & CFO

3. Date of Earliest Transaction (Month/Day/Year)
11/11/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	11/11/2025		M		300,000	A	$21.995	425,695	D
Class A Common Stock	11/11/2025		S		258,000	D	$143.2022(1)(2)	167,695	D
Class A Common Stock	11/11/2025		M		40,076	A	$21.995	79,960	I	By Lampo Family Trust
Class A Common Stock	11/11/2025		S		40,076	D	$143.5015(1)(3)	39,884	I	By Lampo Family Trust
Class A Common Stock								58,116	I	By Craig A. Lampo 2025 GRAT #1
Class A Common Stock								74,305	I	By Craig A. Lampo 2024 GRAT #1
Class A Common Stock								160,000	I	By Craig A. Lampo 2024 GRAT #2

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option	$21.995	11/11/2025		M			300,000	05/18/2019	05/18/2028	Class A Common Stock	300,000	$0	100,000	D
Stock Option	$21.995	11/11/2025		M			40,076	05/18/2019	05/18/2028	Class A Common Stock	40,076	$0	0	I	By Lampo Family Trust

Explanation of Responses:

1. 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.

2. This transaction was executed in multiple trades ranging from $142.5000 to $143.8400.

3. This transaction was executed in multiple trades ranging from $143.5000 to $143.5708.

	/s/ Lance E. D'Amico, POA	11/13/2025
	** Signature of Reporting Person	Date
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