Daniel J. Castillo - 11 Sep 2026 Form 4 Insider Report for WESCO INTERNATIONAL INC (WCC)

Reporting relationship
EVP & GM, EES
Issuer ticker
WCC
Reported as of
11 Sep 2026
Net transaction value
$0
Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
15 Sep 2026, 17:31:11 UTC
Prior SEC filing
05 Aug 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Michele Nelson, as Attorney-in-Fact

Key filing fact

Daniel J. Castillo filed Form 4 for WESCO INTERNATIONAL INC (WCC) on 15 Sep 2026.

Key facts

  • This page summarizes Daniel J. Castillo's Form 4 filing for WESCO INTERNATIONAL INC (WCC).
  • 1 reported transaction and 0 derivative rows are listed below.
  • Accepted by SEC: 15 Sep 2026, 17:31.

Change

  • Previous filing in this sequence was filed on 05 Aug 2026.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001535412 Primary reporting owner

Castillo Daniel J

Relationship
EVP & GM, EES
Address
225 WEST STATION SQUARE DRIVE, SUITE 700, PITTSBURGH
Signature
/s/ Michele Nelson, as Attorney-in-Fact
Signature date
15 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

WCC transaction

Common Stock

Tax liability

Transaction value
Shares
-1,618
Change %
-9.9%
Price
$356.32*
Shares after
14,687
Date
11 Sep 2026
Ownership
Direct
Footnotes
F1
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Represents tax withholding on the vesting of restricted stock units ("RSUs") that were granted on 09/11/2025.

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