SEC Filing Summary: National Grid plc (Form 6-K)
Business Context and Reporting Period
This Form 6-K, dated November 25, 2025, serves as a notification of a major interest in National Grid plc (National Grid). The filing discloses a change in shareholding by BlackRock, Inc., triggered by an acquisition or disposal of voting rights that crossed a regulatory threshold on November 24, 2025. The filing is a compliance document under the Disclosure and Transparency Rules and does not contain operational or financial performance data for the company.
Key Financial Metrics
The filing text does not provide any financial metrics regarding National Grid's revenue, profit, cash flow, margins, debt, or liquidity. The document is strictly a regulatory notification of share ownership changes.
Material Changes Versus Prior Period
The material change disclosed is an increase in BlackRock, Inc.'s total voting interest in National Grid:
- Previous Total Interest: 8.12% (comprising 4.87% direct voting rights and 3.25% via financial instruments).
- Current Total Interest: 8.17% (comprising 7.32% direct voting rights and 0.85% via financial instruments).
- Total Voting Rights Held: 406,584,816 shares.
- Change in Composition: While the total percentage increased marginally, the composition shifted significantly. Direct voting rights attached to shares increased from 4.87% to 7.32%, while voting rights through financial instruments decreased from 3.25% to 0.85%.
Guidance, Outlook, and Risks
The filing contains no guidance, outlook, management commentary, or discussion of risks related to National Grid's business operations. The document solely details the chain of controlled undertakings through which BlackRock holds its interest and confirms the notification was made in compliance with regulatory obligations.
Key Facts for Investor Verification
- Shareholder: BlackRock, Inc. (USA) is the person subject to the notification obligation.
- Threshold Date: The threshold was crossed on November 24, 2025.
- Direct Holdings: BlackRock holds 363,408,544 direct voting rights (7.32%).
- Financial Instruments: Holdings include American Depository Receipts (0.10%), Securities Lending (0.72%), and CFDs (0.03%).
- Regulatory Context: This filing is a mandatory disclosure of major holdings and does not reflect a change in National Grid's corporate strategy or financial health.