# EDGAR Filing Document

**Accession Number:** 0001611129
**File Stem:** 0001209191-23-011431
**Filing Date:** 2023-2
**Character Count:** 6606
**Document Hash:** 271938230abdb44bc7f7c9c872879f0d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001209191-23-011431.hdr.sgml**: 20230221

**ACCESSION NUMBER**: 0001209191-23-011431

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230216

**FILED AS OF DATE**: 20230221

**DATE AS OF CHANGE**: 20230221

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Kulasa Matthew S
- **CENTRAL INDEX KEY:** 0001611129

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-14989
- **FILM NUMBER:** 23650173

**MAIL ADDRESS:**
- **STREET 1:** 100 E. WISCONSIN AVENUE
- **STREET 2:** SUITE 2780
- **CITY:** MILWAUKEE
- **STATE:** WI
- **ZIP:** 53202
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** WESCO INTERNATIONAL INC
- **CENTRAL INDEX KEY:** 0000929008
- **STANDARD INDUSTRIAL CLASSIFICATION:** WHOLESALE-ELECTRICAL APPARATUS & EQUIPMENT, WIRING SUPPLIES [5063]
- **IRS NUMBER:** 251723342
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 225 WEST STATION SQUARE DRIVE
- **STREET 2:** STE 700
- **CITY:** PITTSBURGH
- **STATE:** PA
- **ZIP:** 15219
- **BUSINESS PHONE:** 4124542200

**MAIL ADDRESS:**
- **STREET 1:** 225 WEST STATION SQUARE DRIVE
- **STREET 2:** STE 700
- **CITY:** PITTSBURGH
- **STATE:** PA
- **ZIP:** 15219

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CDW HOLDING CORP
- **DATE OF NAME CHANGE:** 19971217

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>Kulasa Matthew S<br><sub>(Last) (First) (Middle)</sub><br>225 W STATION SQUARE DRIVE<br>SUITE 700<br><sub>(Street)</sub><br>PITTSBURGH, PA 15219<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-16 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_Sr. VP, Corporate Controller_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>WESCO INTERNATIONAL INC [ WCC ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2023-02-16 |  | A |  | 436<sup>(1)</sup> | A | $0.00 | 1705<sup>(2)</sup> | D |  |
| Common Stock | 2023-02-17 |  | F |  | 70<sup>(3)</sup> | D | $168.71 | 1635 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Stock Options (Right to Buy) | $171.96 | 2023-02-16 |  | A |  | 997 |  | <sup>(4)</sup> | <sup>(4)</sup> | Common Stock | 997 | $0.00 | 997 | D |  |

---

### Footnotes:

(1) The Reporting Person received a grant of 436 restricted stock units (RSUs) under the Issuer's long-term incentive plan.  Each RSU represents a contingent right to acquire one share of Issuer's common stock. The RSUs vest in three equal installments beginning on the first anniversary of the date of grant.

(2) The Reporting Person has reported prior awards of RSUs in Table II of Form 4. The total reported in Column 5 includes 436 newly awarded RSUs, 1,090 previously reported RSUs and 179 shares of common stock.

(3) Represents tax withholding on the vesting of RSUs that were granted February 17, 2022.

(4) The stock options become exercisable in three equal annual installments beginning on the first anniversary of the date of grant.

**Signature:** /s/ Michele Nelson, as Attorney-in-Fact  
**Date:** 2023-02-21

### Remarks:

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.**