[Form 4] WESCO INTERNATIONAL INC Insider Trading Activity

Rhea-AI Filing Summary

Laura K. Thompson, a director of Wesco International Inc. (WCC), reported an acquisition on 09/30/2025 of 4.4487 dividend equivalent rights (DERs) related to restricted stock units. The DERs were recorded at a $0 price and the filing shows the reporting person directly beneficially owns 10,328.0781 shares following the transaction. The filing explains each DER represents the economic equivalent of one share and vests on the same schedule as the underlying RSUs. The Form 4 was signed by an attorney-in-fact on 10/02/2025.

Positive

• Director accrued 4.4487 dividend-equivalent rights tied to existing RSUs
• Direct beneficial ownership increased to 10,328.0781 shares following the transaction

Negative

• None.

Insights

Corporate Governance Expert

Director accrued 4.4487 DERs tied to RSUs; holdings now 10,328.0781 shares.

The transaction is recorded as a Code V event, indicating the acquisition is the economic equivalent of dividends on existing restricted stock units rather than a market purchase.

This is an administrative accumulation of dividend-equivalent rights at $0, not a cash purchase or open-market trade; it adjusts the director's deferred compensation tied to equity awards.

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).

1. Name and Address of Reporting Person^*

Thompson Laura K

(Last) (First) (Middle)

225 WEST STATION SQUARE DRIVE

SUITE 700

(Street)

PITTSBURGH PA 15219

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
WESCO INTERNATIONAL INC [ WCC ]

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2025

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
Common Stock	09/30/2025		A		4.4487(1)	A	$0	10,328.0781	D

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. Represents dividend equivalent rights ("DERs") in connection with the Issuer's quarterly dividend and accrued to the Reporting Person on restricted stock units ("RSUs") held by the Reporting Person. Each DER is the economic equivalent of one share of Issuer's common stock and vests on the same schedule as the underlying award.

	/s/ Michele Nelson, as Attorney-in-Fact	10/02/2025
	** 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 Laura K. Thompson report on Form 4 for WCC?

She reported acquisition of 4.4487 dividend equivalent rights (DERs) tied to restricted stock units on 09/30/2025.

How many shares does the reporting person own after the transaction (WCC)?

The filing shows 10,328.0781 shares beneficially owned following the reported transaction.

What is the nature of the reported DERs on the Form 4?

The DERs are the economic equivalent of one share each and vest on the same schedule as the underlying RSUs, per the filing.

Was cash used to acquire the reported securities?

No; the DERs are recorded at a $0 price in the filing, indicating they accrued rather than were purchased.

When was the Form 4 signed and filed?

The signature by an attorney-in-fact is dated 10/02/2025, and the transaction date is 09/30/2025.