Diane Lazzaris - 26 Aug 2025 Form 4 Insider Report for WESCO INTERNATIONAL INC (WCC)

Signature
/s/ Michele Nelson, as Attorney-in-Fact
Issuer symbol
WCC
Transactions as of
26 Aug 2025
Net transactions value
-$2,426,134
Form type
4
Filing time
28 Aug 2025, 16:44:08 UTC
Previous filing
02 Jul 2025
Next filing
02 Oct 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Lazzaris Diane EVP and General Counsel 225 WEST STATION SQUARE DRIVE, SUITE 700, PITTSBURGH /s/ Michele Nelson, as Attorney-in-Fact 28 Aug 2025 0001428491

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WCC Common Stock Sale $469,174 -2,077 -3.7% $225.89 53,999 26 Aug 2025 Direct F1
transaction WCC Common Stock Sale $228,055 -1,005 -1.9% $226.92 52,994 26 Aug 2025 Direct F2
transaction WCC Common Stock Sale $17,771 -78 -0.15% $227.83 52,916 26 Aug 2025 Direct F3
transaction WCC Common Stock Options Exercise $542,411 +9,927 +19% $54.64 62,843 27 Aug 2025 Direct
transaction WCC Common Stock Disposed to Issuer $542,530 -2,388 -3.8% $227.19 60,455 27 Aug 2025 Direct
transaction WCC Common Stock Tax liability $744,956 -3,279 -5.4% $227.19 57,176 27 Aug 2025 Direct
transaction WCC Common Stock Sale $522,508 -2,308 -4% $226.39 54,868 28 Aug 2025 Direct F4
transaction WCC Common Stock Sale $443,553 -1,952 -3.6% $227.23 52,916 28 Aug 2025 Direct F5

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction WCC Stock Appreciation Rights Options Exercise $0 -9,927 -100% $0.000000 0 27 Aug 2025 Common Stock 9,927 $54.64 Direct F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents weighted average sale price. These shares were sold in multiple transactions at prices ranging from $225.40 - $226.26. Upon request by the SEC, the Issuer or a stockholder of the Issuer, complete information regarding the number of shares sold at each price within the range will be provided.
F2 Represents weighted average sale price. These shares were sold in multiple transactions at prices ranging from $226.46 - $227.40. Upon request by the SEC, the Issuer or a stockholder of the Issuer, complete information regarding the number of shares sold at each price within the range will be provided.
F3 Represents weighted average sale price. These shares were sold in multiple transactions at prices ranging from $227.81 - $227.85. Upon request by the SEC, the Issuer or a stockholder of the Issuer, complete information regarding the number of shares sold at each price within the range will be provided.
F4 Represents weighted average sale price. These shares were sold in multiple transactions at prices ranging from $225.86 - $226.83. Upon request by the SEC, the Issuer or a stockholder of the Issuer, complete information regarding the number of shares sold at each price within the range will be provided.
F5 Represents weighted average sale price. These shares were sold in multiple transactions at prices ranging from $226.88 - 227.71. Upon request by the SEC, the Issuer or a stockholder of the Issuer, complete information regarding the number of shares sold at each price within the range will be provided.
F6 The Stock Appreciation Rights became exercisable in three (3) equal, annual installments beginning on the first anniversary of the February 13, 2019 grant date.