Williams Companies Files Prospectus Supplement for Resale of Up to 26.87M Shares

Williams Companies, Inc. (NYSE: WMB) – Form 8-K Summary

Overview of the Filing

On September 3, 2026, The Williams Companies, Inc. filed a Current Report on Form 8-K under Item 8.01 (Other Events) and Item 9.01 (Financial Statements and Exhibits).

Key Disclosures

• Resale Prospectus Supplement: Williams filed a prospectus supplement to its effective shelf registration statement on Form S-3 (Registration No. 333-277232).
• Securities Registered: Up to 26,874,496 shares of common stock ($1.00 par value per share) for resale by certain selling securityholders named in the supplement.
• Legal Validity: Davis Polk & Wardwell LLP provided an opinion on the validity of the registered shares (filed as Exhibit 5.1), confirming they are duly authorized, validly issued, fully paid, and non-assessable.

Impact and Market Assessment

This filing represents a procedural step enabling named selling securityholders to resell existing shares in the public market under an existing shelf registration. The company is not issuing new equity for its own account in this transaction, meaning there is no direct cash inflow to the company nor immediate dilution to total shares outstanding.