X0708 D/A LIVE 0001731994 Deerfield TopCo Corp 55 EAST 52ND STREET, 31ST FLOOR NEW YORK NY NEW YORK 10055 (212) 871-2000 DELAWARE None None Corporation true 2017 Noah Gottdiener 55 East 52nd Street, 31st Floor New York NY NEW YORK 10055 Executive Officer Director Became an officer and director of issuer on 2/13/18. Nic Volpi 55 East 52nd Street, 31st Floor New York NY NEW YORK 10055 Director Became a director of issuer on 10/27/17. Jacob Silverman 55 East 52nd Street, 31st Floor New York NY NEW YORK 10055 Executive Officer Director Became an officer and director of issuer on 2/13/18. Nancy Lewis 55 East 52nd Street, 31st Floor New York NY NEW YORK 10055 Director Became a director of issuer on 2/13/18. Patrick Puzzuoli 55 East 52nd Street, 31st Floor New York NY NEW YORK 10055 Executive Officer Became an officer of issuer on 2/13/18. Brett Marschke 55 East 52nd Street, 31st Floor New York NY NEW YORK 10055 Executive Officer Became an officer of issuer on 2/13/18. Edward Forman 55 East 52nd Street, 31st Floor New York NY NEW YORK 10055 Executive Officer Became an officer of issuer on 2/13/18. Anthony Amitrano 55 East 52nd Street, 31st Floor New York NY NEW YORK 10055 Executive Officer Became an officer of issuer on 4/23/18. Christopher Matteson 55 East 52nd Street, 31st Floor New York NY NEW YORK 10055 Executive Officer Became an officer of issuer on 4/23/18. Thomas H. Lister 55 East 52nd Street, 31st Floor New York NY NEW YORK 10055 Director Became a director of issuer on 3/6/18. Philip Muelder 55 East 52nd Street, 31st Floor New York NY NEW YORK 10055 Director Became a director of issuer on 3/6/18. William McNabb 55 East 52nd Street, 31st Floor New York NY NEW YORK 10055 Director Became a director of issuer in 10/19. Other Decline to Disclose 06b true 0000950172-19-000059 2018-02-13 true true true true Securities offered include restricted shares as well as options and the underlying shares of common stock issuable on vesting and exercise thereof true 20000 105475000 87999000 17476000 Total remaining to be sold includes value of unvested/unexercised options and restricted shares false 226 0 0 0 false Deerfield TopCo Corp /s/ Edward Forman Edward Forman Executive Vice President, General Counsel and Secretary 2020-03-16