[Form 4/A] Amphenol Corporation Amended Insider Trading Activity

Rhea-AI Filing Summary

Amended Form 4 for APH reporting correction to prior insider filing. The filing shows that on 08/18/2025 the reporting person disposed of 76,400 shares of Class A common stock. Following the reported transactions the reporting person beneficially owns 25,000 shares indirectly through a 2025 GRAT #1 and 0 shares indirectly through a 2024 Irrevocable Trust. The amendment states a previously filed Form 4 (filed 08/19/2025) incorrectly reported that the 2024 Irrevocable Trust beneficially owned non-derivative securities; this amendment corrects the beneficial ownership amounts. The form is signed by Lance E. D'Amico and identifies his role as Sr. VP, Secretary & General Counsel of Amphenol Corporation.

Positive

• Amendment filed to correct prior error, improving disclosure accuracy
• Post-transaction beneficial ownership clarified (25,000 shares held indirectly in 2025 GRAT #1)

Negative

• Insider disposed of 76,400 Class A shares on 08/18/2025 (sale reduces direct holdings)
• Prior Form 4 misreported beneficial ownership for the 2024 Irrevocable Trust, indicating a reporting lapse

Insights

Financial Analyst

TL;DR: Amendment corrects prior reporting and discloses an insider disposal of 76,400 shares; impact appears procedural and not immediately material to operations.

The amended Form 4 clarifies beneficial ownership after a sale on 08/18/2025 and removes an erroneous attribution to a 2024 Irrevocable Trust. The direct disposal of 76,400 Class A shares reduces the reporting person's direct stake; however, without price or percentage of outstanding shares the market-cap impact cannot be assessed from this filing alone. The correction improves disclosure accuracy, which is important for governance and market transparency.

Corporate Governance Expert

TL;DR: Correction indicates a prior reporting error; filing the amendment is a positive compliance step but highlights a lapse in initial reporting accuracy.

The amendment explicitly states the initial Form 4 misattributed non-derivative holdings to the 2024 Irrevocable Trust and now provides the corrected post-transaction ownership figures. Timely amendment reduces regulatory risk, but the initial misstatement is a governance concern that investors monitoring insider reporting practices may note. No new derivative instruments or compensatory grants are disclosed.

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
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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)
08/18/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)
08/19/2025

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								76,400(1)	D
Class A Common Stock								25,000	I	By Lance E. D'Amico 2025 GRAT #1
Class A Common Stock								0	I	By Lance E. D'Amico 2024 Irrevocable Trust

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

Explanation of Responses:

1. On August 19, 2025, the Reporting Person filed a Form 4 incorrectly reporting that the Reporting Person's 2024 Irrevocable Trust beneficially owned non-derivative securities. This amendment correctly states the amount of non-derivative securities beneficially owned by the Reporting Person.

	/s/ Lance E. D'Amico	08/26/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did the amended Form 4 for Amphenol (APH) change?

The amendment corrects a prior Form 4 that incorrectly reported the 2024 Irrevocable Trust as owning non-derivative securities and restates the reporting person’s beneficial ownership.

How many shares did the reporting person dispose of and when?

The reporting person disposed of 76,400 shares of Class A common stock on 08/18/2025.

What beneficial ownership remains after the reported transactions?

Following the transactions the reporting person beneficially owns 25,000 shares indirectly via a 2025 GRAT #1 and 0 shares via the 2024 Irrevocable Trust.

Who is the reporting person and what is their role at Amphenol?

The reporting person is Lance E. D'Amico, identified as Sr. VP, Secretary & General Counsel of Amphenol Corporation.

Does the amendment disclose any derivative transactions or new grants?

No. The filing contains only non-derivative security information and an ownership correction; no derivative instruments or new grants are reported.