GDV – DEFA14A June 5, 2026 In SEC https://www.sec.gov/Archives/edgar/data/1260729/000182912626006113/0001829126-26-006113-index.htm #GDV Distribution Dates and Amounts Announced for Certain BlackRock Closed-End Funds AM Best Upgrades Issuer Credit Ratings of National Security Fire and Casualty Company and National Security Insurance Company; Upgrades Credit Ratings of Omega One Insurance Company, Inc.