X0306 4 2018-12-11 0 0001682852 Moderna, Inc. MRNA 0001035440 SAGAN PAUL C/O MODERNA, INC. 200 TECHNOLOGY SQUARE CAMBRIDGE MA 02139 1 0 0 0 Common Stock 2018-12-11 4 C 0 367776 A 367776 I By: The Paul Sagan Revocable Trust Common Stock 17201 I By: Erwin Park LLC Common Stock 76452 I By: The Chatham Trust Series B Preferred Stock 2018-12-11 4 C 0 367776 D Common Stock 367776 0 I By: The Paul Sagan Revocable Trust The Series B Preferred Stock (the "Preferred Stock") converted into Common Stock based on an applicable conversion ratio of 0.45457 upon the closing of the Issuer's initial public offering on December 11, 2018. The Preferred Stock had no expiration date. Erwin Park LLC is an estate planning vehicle for the Reporting Person's family. The Chatham Trust is an irrevocable family trust for which the Reporting Person serves as a trustee. The Paul Sagan Revocable Trust is a revocable trust for which the Reporting Person serves as a trustee. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. /s/ Jeffrey Cerio, as Attorney-in-Fact 2018-12-13