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

Rhea-AI Filing Summary

Amphenol (APH): On 10/29/2025, Sr. VP, Secretary & General Counsel Lance E. D'Amico exercised stock options for 120,000 Class A shares at $22.5525 (code M) and sold 120,000 shares at a weighted average price of $140.0129 (code S), executed across trades ranging from $139.71 to $140.53.

Following these transactions, he directly owned 76,400 shares and indirectly held 25,000 shares via the Lance E. D'Amico 2025 GRAT #1. The exercised options were from a grant first exercisable on 05/21/2021 and expiring on 05/21/2030; 100,000 stock options remained beneficially owned.

Insider Trade Summary

Net Seller: 120,000 shares ($16,801,548)

Net Sell 4 txns

Insider D'AMICO LANCE E

Role Sr. VP, Secretary & GenCounsel

Sold 120,000 shs ($16.80M)

Type	Security	Shares	Price	Value
Exercise	Stock Option	120,000	$0.00	--
Exercise	Class A Common Stock	120,000	$22.5525	$2.71M
Sale	Class A Common Stock	120,000	$140.0129	$16.80M
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Stock Option — 100,000 shares (Direct); Class A Common Stock — 196,400 shares (Direct); Class A Common Stock — 25,000 shares (Indirect, By Lance E. D'Amico 2025 GRAT #1)

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 $139.71 to $140.53.

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^*

D'AMICO LANCE E

(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, Secretary & GenCounsel

3. Date of Earliest Transaction (Month/Day/Year)
10/29/2025

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	10/29/2025		M		120,000	A	$22.5525	196,400	D
Class A Common Stock	10/29/2025		S		120,000	D	$140.0129(1)(2)	76,400	D
Class A Common Stock								25,000	I	By Lance E. D'Amico 2025 GRAT #1

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	$22.5525	10/29/2025		M			120,000	05/21/2021	05/21/2030	Class A Common Stock	120,000	$0	100,000	D

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 $139.71 to $140.53.

	/s/ Lance E. D'Amico	10/30/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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