JPMorgan Chase & Co. Reports Ownership Reduction Below 5% in MKS Inc.

Schedule 13G/A Filing Overview

On September 3, 2026, JPMorgan Chase & Co. filed an amended Schedule 13G (Amendment No. 1) with the SEC regarding its holdings in MKS INC. (CIK: 0001049502).

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Key Highlights

1. Ownership Level Below 5% Threshold:

   • Beneficial Ownership: 2,005,756 shares of Common Stock (no par value).
   • Ownership Percentage: 2.9% of the outstanding shares.
   • Item 5 Certification: JPMorgan Chase & Co. verified that as of August 31, 2026, it has ceased to be the beneficial owner of more than five percent of the class of securities.

2. Voting and Dispositive Breakdown:

   • Sole Voting Power: 1,817,051 shares
   • Shared Voting Power: 4,188 shares
   • Sole Dispositive Power: 2,003,316 shares
   • Shared Dispositive Power: 452 shares

3. Entities Covered:

   • Holdings are held across several subsidiary entities, including J.P. Morgan Securities LLC, J.P. Morgan Investment Management Inc., and JPMorgan Chase Bank, N.A., among others.

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Impact & Significance

• Trading Significance: Low. This is a standard regulatory amendment disclosing that an institutional asset manager has reduced its beneficial ownership below 5% in the ordinary course of business without activist intent.