BlackRock Discloses 8.2% Beneficial Ownership in WESCO International

Overview

On October 27, 2026, BlackRock Portfolio Management LLC filed Amendment No. 2 to Schedule 13G regarding its holdings in WESCO INTERNATIONAL INC (WCC). The event date triggering the requirement was September 30, 2026.

Beneficial Ownership Details

• Class of Security: Common Stock (CUSIP: 95082P105)
• Aggregate Number of Shares Beneficially Owned: 3,995,230
• Percent of Class: 8.2%
• Voting Authority:
  • Sole Voting Power: 3,873,778 shares
  • Shared Voting Power: 0 shares
• Dispositive Authority:
  • Sole Dispositive Power: 3,995,230 shares
  • Shared Dispositive Power: 0 shares

Nature of Filing and Market Significance

• Passive Stance: The filing was made pursuant to Rule 13d-1(b) under the Securities Exchange Act of 1934. BlackRock certified that the securities were acquired and are held in the ordinary course of business and not with the purpose or effect of changing or influencing control of the issuer.
• Significance Rating: Low. As a routine amended institutional Schedule 13G filing, this reflects normal portfolio adjustments and ongoing passive indexing/investment activities rather than activist involvement.