13G Filing: James E. Flynn and Audentes Therapeutics Inc (BOLD)

Audentes Therapeutics, Inc.

600 California Street, 17^th Floor
San Francisco, CA 94108

James E. Flynn, Deerfield Mgmt, L.P., Deerfield Mgmt III, L.P., Deerfield Management Company, L.P., Deerfield Special Situations
Fund, L.P., Deerfield Partners, L.P., Deerfield International Master Fund, L.P. and Deerfield Private Design Fund III, L.P.

James E. Flynn, Deerfield Mgmt, L.P., Deerfield Mgmt III, L.P., Deerfield Management Company, L.P., Deerfield Special Situations
Fund, L.P., Deerfield Partners, L.P., Deerfield International Master Fund, L.P. and Deerfield Private Design Fund III, L.P.,
780 Third Avenue, 37th Floor, New York, NY 10017

Deerfield Mgmt, L.P., Deerfield Mgmt III, L.P., Deerfield Management Company, L.P., Deerfield Private Design Fund III, L.P.
and Deerfield Special Situations Fund, L.P. and Deerfield Partners, L.P. – Delaware limited partnerships;

Deerfield International
Master Fund, L.P. – British Virgin Islands limited partnership;

James E. Flynn – United States citizen

If This Statement is Filed Pursuant to
Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a:

Broker or dealer registered under Section 15 of the
Exchange Act.

Insurance company as defined in Section 3(a)(19) of
the Exchange Act.

Investment company registered under Section 8 of the
Investment Company Act.