[Form 4] WESCO INTERNATIONAL INC Insider Trading Activity

Rhea-AI Filing Summary

Christine Ann Wolf, Executive Vice President & Chief Human Resources Officer of WESCO International, Inc. (WCC), reported an acquisition on 09/30/2025. The Form 4 shows she received 6.7651 dividend equivalent rights tied to restricted stock units at a $0 price, and now beneficially owns 30,195.0462 shares (direct ownership). The filing explains these dividend equivalent rights (DERs) are the economic equivalent of one share and vest on the same schedule as the underlying RSUs. The form was signed by an attorney-in-fact on 10/02/2025.

Positive

• 6.7651 dividend equivalent rights added without cash outlay, reflecting planned compensation mechanics
• Reporting person remains aligned with shareholders with total beneficial ownership of 30,195.0462 shares

Negative

• None.

Insights

Corporate Governance Expert

Officer received DERs tied to existing RSUs, modest incremental ownership.

The report documents a non-cash acquisition of 6.7651 dividend equivalent rights that increase the reporting person's total beneficial ownership to 30,195.0462 shares. This transaction is administrative in nature and arises from compensation plan mechanics rather than an open-market purchase.

This is a routine disclosure reflecting plan-driven vesting; the concrete item to note is the transaction date 09/30/2025.

Executive Compensation Analyst

DERs converted from RSUs create taxable/economic exposure without cash outlay.

The filing states the acquired units are dividend equivalent rights that mirror one share each and vest with the underlying RSUs, indicating these are compensation-related increments rather than performance or market purchases.

Because the price reported is $0, the entry reflects award accruals; monitor vesting schedules tied to these RSUs for future diluted share impacts as of 09/30/2025.

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

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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^*

Wolf Christine Ann

(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)

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

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		6.7651(1)	A	$0	30,195.0462	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 transaction did Christine Ann Wolf report on Form 4 for WCC?

She reported receiving 6.7651 dividend equivalent rights tied to restricted stock units on 09/30/2025.

How many shares does the reporting person beneficially own after the transaction?

The Form 4 reports 30,195.0462 shares beneficially owned following the transaction.

Was there any cash paid for the shares or rights reported?

No. The transaction lists a price of $0, indicating these were accruals of dividend equivalent rights.

What are the dividend equivalent rights (DERs) described in the filing?

The filing explains DERs are the economic equivalent of one share of common stock and vest on the same schedule as the underlying RSUs.

What is the reporting person's role at WESCO (WCC)?

The reporting person is disclosed as EVP & CHRO (Executive Vice President & Chief Human Resources Officer).