BlackRock, Inc. Amends Schedule 13G/A for MKS Instruments Inc.

BlackRock, Inc. has filed an amendment to its Schedule 13G/A for MKS Instruments Inc., reporting ownership of 5,887,663 shares of common stock, representing 8.8% of the total outstanding shares. The filing indicates that BlackRock has sole voting power over 5,669,807 shares and sole dispositive power over all 5,887,663 shares. The amendment reflects a decrease in ownership by 1,428,900 shares compared to the previous filing, a reduction of 19.53%. The value of the holdings has increased by 10.57% to $803,783,752.76. The filing also certifies that the shares were acquired and are held in the ordinary course of business and not for the purpose of influencing control of the issuer.