144 0001756407 XXXXXXXX LIVE 0001799208 Dun & Bradstreet Holdings, Inc. 001-39361 5335 Gate Parkway Jacksonville FL 32256 (904) 648-6350 THL FUND VIII COINVESTMENT PARTNERS, L.P. Affiliate Common Stock Goldman Sachs & Co. LLC

200 West Street New York NY 10282

365626 3524634.64 438959568 11/07/2023 NYSE Common Stock, $0.0001 par value 07/06/2020 Received as a distribution from Star Parent L.P., which acquired shares from the issuer on February 8, 2019 See ???Nature of Acquisition Transaction??? N 363427 07/06/2020 See ???Nature of Acquisition Transaction??? Common Stock, $0.0001 par value 02/15/2022 Acquired as partial consideration from Black Knight, Inc. in exchange for equity interests of Optimal Blue Holdco, LLC See ???Nature of Acquisition Transaction??? N 2199 02/15/2022 See ???Nature of Acquisition Transaction??? Y Aggregate Market Value is as of November 6, 2023 11/07/2023 /s/ Michael McDonnell, Chief Financial Officer, Management Company