Vanguard Group Inc's 13G/A Filing for Koppers Holdings Inc

The Vanguard Group Inc filed an amended Schedule 13G/A with the SEC, disclosing its ownership of 1,539,485 shares of Koppers Holdings Inc's common stock, representing 7.8% of the total outstanding shares. The filing indicates that Vanguard has sole dispositive power over 1,368,407 shares and shared dispositive power over 171,078 shares. The shares are held on behalf of Vanguard's clients, including investment companies and managed accounts, with no single client owning more than 5% of the shares. The filing certifies that the shares were acquired and are held in the ordinary course of business and not for the purpose of influencing the control of the issuer.