SCHEDULE A

DIRECTORS AND EXECUTIVE OFFICERS OF THE REPORTING PERSONS

Takeda Pharmaceutical Company Limited

    The name, business address, title and present principal occupation or employment of each of the directors and executive officers of Takeda Pharmaceutical Company Limited (“Takeda”) are set forth below. If no address is given, the business address is 1-1, Nihonbashi-Honcho 2-Chome, Chuo-Ku, Tokyo, M0 103-8668, Japan.


Director
Principal Occupation
Citizenship
Christophe Weber
Representative Director, President and Chief Executive Officer of Takeda
France
Milano Furuta
Director and Chief Financial Officer of Takeda
Japan
Andrew S. Plump, M.D., Ph.D.
Director and President, Research and Development of Takeda
US
Masami Iijima
Counselor of Mitsui & Co., Ltd
Japan
Ian Clark
Former CEO and Director of Genentech Inc.
US
Steven Gillis, Ph.D.
Managing Director at ARCH Venture Partners
US
Emiko Higashi
Managing Director of Tomon Partners, LLC
Japan
John Maraganore, Ph.D.
Former Director and CEO of Alnylam Pharmaceuticals, Inc.
US
Michel Orsinger
Former Member of Global Management Team of Johnson & Johnson
Switzerland
Miki Tsusaka
President of Microsoft Japan Co., Ltd.
Japan
Koji Hatsukawa
Former CEO of PricewaterhouseCoopers Arata
Japan
Jean-Luc Butel
Global Healthcare Advisor, President of K8 Global Pte. Ltd
Singapore
Yoshiaki Fujimori
Senior Executive Advisor of CVC Japan
Japan
Kimberly A. Reed
Former Chairman of the Board of Directors, President, and CEO of Export-Import Bank of the United States
US







Executive Officer
Title - Principal Occupation
Citizenship
Christophe Weber
Representative Director, President and Chief Executive Officer
France
Milano Furuta
Director and Chief Financial Officer
Japan
Andrew S. Plump, M.D., Ph.D.
Director and President, Research and Development
US
Akiko Amakawa
Corporate Strategy Officer & CEO Chief of Staff
Japan
Asuka Miyabashira
President, Japan Pharma Business Unit
Japan
Gabriele Ricci
Chief Data & Technology Officer
Italy
Giles Platford
President, Plasma-Derived Therapies Business Unit
UK
Elaine Shannon
Global Quality Officer
Ireland
Julie Kim
President, US Business Unit, US Country Head and Interim Head of Global Portfolio Division
US
Lauren Duprey
Chief Human Resources Officer
US
Marcello Agosti
Global Business Development Officer
Italy
Mwana Lugogo
Chief Ethics & Compliance Officer
Kenya
Natalie Furney
Global General Counsel
US
Takako Ohyabu
Chief Global Corporate Affairs & Sustainability Officer
Japan
Teresa Bitetti
President, Global Oncology Business Unit
US
Thomas Wozniewski, Ph.D.
Global Manufacturing & Supply Officer
Germany

Takeda Vaccines, Inc.

    The name, business address, title and present principal occupation or employment of each of the directors and executive officers of Takeda Vaccines, Inc. (“Takeda Vaccines”) are set forth below. If no address is given, the business address is 75 Sidney Street, Cambridge, Massachusetts 02139.

Director
Principal Occupation
Citizenship
Derek Wallace
President, Vaccines Business Unit
UK

Executive Officer
Title - Principal Occupation
Citizenship
Derek Wallace
President
UK
Matthew Symonds
Treasurer
US
Jason Baranski
Secretary
US
Paul Sundberg
Max Heuer
Assistant Secretary
Assistant Secretary
US
US
Scott Dessing
Assistant Treasurer
US