National Grid has received a notification from BlackRock, Inc. regarding its total interest in National Grid voting ordinary shares. As of November 21, 2023, BlackRock holds a total of 4.42% of voting rights attached to shares and 2.46% of voting rights through financial instruments, resulting in a total of 6.88% of voting rights. The total number of voting rights held by BlackRock in National Grid is 254,618,019. This represents an increase from their previous position of 6.37% of voting rights. The notification also includes details of the financial instruments held by BlackRock, including American Depository Receipts and Securities Lending. The notification provides information on the chain of controlled undertakings through which BlackRock holds its voting rights and financial instruments.