Initial Statement of Beneficial Ownership

This filing is an Initial Statement of Beneficial Ownership (Form 3) for Francis C. Mahoney, reporting ownership of BlackRock ESG Capital Allocation Term Trust (ECAT). Mr. Mahoney, who is a director of the issuer, has no securities owned as of September 8, 2026. The filing is signed by Gladys Chang as Attorney-in-Fact on September 17, 2026.