WESCO EVP receives small stock-based award

WESCO International executive vice president and general counsel Diane Lazzaris acquired 5.4334 shares of common stock through dividend equivalent rights tied to her existing restricted stock units.

Rhea-AI Filing Summary

WESCO International executive vice president and general counsel Diane Lazzaris acquired 5.4334 shares of common stock through dividend equivalent rights tied to her existing restricted stock units. Each right is economically equal to one share and follows the same vesting schedule as the underlying award. After this grant, she directly holds a total of 29,520.9979 common shares.

Insider Trade Summary

Grant/Award: 5.4334 shares

Grant/Award 1 txn

Insider Lazzaris Diane

Role EVP and General Counsel

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	5.4334	$0.00	$0.00

Holdings After Transaction: Common Stock — 29,520.9979 shares (Direct)

Footnotes (1)

1. F1. 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.

Key Figures

Shares acquired: 5.4334 shares Total holdings after transaction: 29,520.9979 shares Transaction price per share: $0.0000 per share

3 metrics

Shares acquired 5.4334 shares Dividend equivalent rights credited on restricted stock units

Total holdings after transaction 29,520.9979 shares Direct WESCO common stock held by Diane Lazzaris following grant

Transaction price per share $0.0000 per share Compensation-related award, not an open-market purchase

Key Terms

dividend equivalent rights ("DERs"), restricted stock units ("RSUs"), underlying award

3 terms

dividend equivalent rights ("DERs") financial

"Represents dividend equivalent rights ("DERs") in connection with the Issuer's quarterly dividend"

restricted stock units ("RSUs") financial

"accrued to the Reporting Person on restricted stock units ("RSUs") held by the Reporting Person"

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

underlying award financial

"Each DER is the economic equivalent of one share of Issuer's common stock and vests on the same schedule as the underlying award"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did WESCO (WCC) EVP Diane Lazzaris report in this Form 4 filing?

Diane Lazzaris reported acquiring 5.4334 common shares in the form of dividend equivalent rights. These rights accrued on restricted stock units she already holds and mirror the same vesting schedule as the underlying RSU award, slightly increasing her equity stake.

How many WESCO (WCC) shares does Diane Lazzaris hold after this transaction?

After this transaction, Diane Lazzaris directly holds 29,520.9979 shares of WESCO common stock. This total includes the 5.4334 dividend equivalent rights credited in connection with the company’s quarterly dividend on restricted stock units previously granted to her.

What are dividend equivalent rights (DERs) in the WESCO (WCC) Form 4?

Dividend equivalent rights are credits that mirror cash dividends on restricted stock units, expressed as share equivalents. In this filing, each DER is the economic equivalent of one WESCO common share and vests on the same schedule as the underlying restricted stock unit award.

Are the acquired WESCO (WCC) shares in this Form 4 a market purchase?

No, the acquisition is not a market purchase. The 5.4334 shares reflect a grant of dividend equivalent rights tied to existing restricted stock units. They represent compensation-related share equivalents, not open-market buying or selling of WESCO common stock by the executive.

Does this WESCO (WCC) insider transaction indicate a sale of shares?

No, the Form 4 reports an acquisition, not a sale. The transaction code is “A,” indicating a grant or award. Diane Lazzaris received 5.4334 dividend equivalent rights, increasing her direct holdings, with no disposition or sale of WESCO shares reported here.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/02/2026 - 05:27 PM Learn about SEC filing dates

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^*

Lazzaris Diane

(Last) (First) (Middle)

225 WEST STATION SQUARE DRIVE

SUITE 700

(Street)

PITTSBURGH PENNSYLVANIA 15219

(City) (State) (Zip)

UNITED STATES

(Country)

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 and General Counsel

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026

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

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

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

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	03/31/2026		A		5.4334(1)	A	$0	29,520.9979	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	04/02/2026
	** 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.
* Form 4: SEC 1474 (03-26)