X0206 3 2021-11-09 0 0001850316 Ascendant Digital Acquisition Corp. III ACDI 0001875763 Ascendant Sponsor LP III C/O ASCENDANT DIGITAL ACQUISITION CORP. 667 MADISON AVENUE, 5TH FLOOR NEW YORK NY 10065 1 0 1 0 0001876447 Ascendant Sponsor GP III LLC C/O ASCENDANT DIGITAL ACQUISITION CORP. 667 MADISON AVENUE, 5TH FLOOR NEW YORK NY 10065 0 0 1 0 0001805731 Gomberg David C/O ASCENDANT DIGITAL ACQUISITION CORP. 667 MADISON AVENUE, 5TH FLOOR NEW YORK NY 10065 1 1 1 0 President Class B Ordinary Shares Class A Ordinary Shares 7273750 D The Class B ordinary shares are convertible for the Issuer's Class A ordinary shares as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-255349) (the "Registration Statement") and have no expiration date. The Class B ordinary shares beneficially owned by the Reporting Persons include up to 978,750 Class B ordinary shares subject to forfeiture to the Issuer depending on the extent to which the underwriters' over-allotment option is exercised in connection with the Issuer's initial public offering of units, as described in the Registration Statement. Ascendant Sponsor LP III is the record holder of the securities reported herein. Ascendant Sponsor GP III LLC is the sole general partner of Ascendant Sponsor LP III and David Gomberg is the general partner of Ascendant Sponsor GP III LLC. Mr. Gomberg has voting and investment discretion with respect to the securities held of record by Ascendant Sponsor LP III. See Exhibit 99.1 - Joint Filer Information, which is incorporated herein by reference and describes in further detail the relationships of the Reporting Persons to the Issuer. See Exhibits 24.1, 24.2 and 24.3 - Powers of Attorney. /s/ Jordan Leon, Attorney-in-Fact for Ascendant Sponsor LP III 2021-11-09 /s/ Jordan Leon, Attorney-in-Fact for Ascendant Sponsor GP III LLC 2021-11-09 /s/ Jordan Leon, Attorney-in-Fact for David Gomberg 2021-11-09