Annex A
WP X BIOLOGICS LLC
By: Warburg Pincus Private Equity
X, L.P., its managing member
By: Warburg Pincus X, L.P., its
general partner
By: Warburg Pincus X GP L.P., its
general partner
By: WPP GP LLC, its general partner
By: Warburg Pincus Partners, L.P.,
its managing member
By: Warburg Pincus Partners GP LLC,
its general partner
By: Warburg Pincus & Co., its
managing member
By: /s/ Robert B. Knauss
--------------------------------
Name: Robert B. Knauss
Title: Partner
WARBURG PINCUS PRIVATE EQUITY X, L.P.
By: Warburg Pincus X, L.P., its
general partner
By: Warburg Pincus X GP L.P., its
general partner
By: WPP GP LLC, its general
partner
By: Warburg Pincus Partners, L.P.,
its managing member
By: Warburg Pincus Partners GP LLC,
its general partner
By: Warburg Pincus & Co., its
managing member
By: /s/ Robert B. Knauss
--------------------------------
Name: Robert B. Knauss
Title: Partner
WARBURG PINCUS X PARTNERS, L.P.
By: Warburg Pincus X, L.P., its
general partner
By: Warburg Pincus X GP L.P., its
general partner
By: WPP GP LLC, its general partner
By: Warburg Pincus Partners, L.P.,
its managing member
By: Warburg Pincus Partners GP LLC,
its general partner
By: Warburg Pincus & Co., its
managing member
By: /s/ Robert B. Knauss
--------------------------------
Name: Robert B. Knauss
Title: Partner
Warburg Pincus X, L.P.
By: Warburg Pincus X GP L.P., its
general partner
By: WPP GP LLC, its general partner
By: Warburg Pincus Partners, L.P.,
its managing member
By: Warburg Pincus Partners GP LLC,
its general partner
By: Warburg Pincus & Co., its
managing member
By: /s/ Robert B. Knauss
--------------------------------
Name: Robert B. Knauss
Title: Partner
Warburg Pincus X GP L.P.
By: WPP GP LLC, its general partner
By: Warburg Pincus Partners, L.P.,
its managing member
By: Warburg Pincus Partners GP LLC,
its general partner
By: Warburg Pincus & Co., its
managing member
By: /s/ Robert B. Knauss
--------------------------------
Name: Robert B. Knauss
Title: Partner
WPP GP LLC
By: Warburg Pincus Partners, L.P.,
its managing member
By: Warburg Pincus Partners GP LLC,
its general partner
By: Warburg Pincus & Co., its
managing member
By: /s/ Robert B. Knauss
--------------------------------
Name: Robert B. Knauss
Title: Partner
Warburg Pincus Partners, L.P.
By: Warburg Pincus Partners GP LLC,
its general partner
By: Warburg Pincus & Co., its
managing member
By: /s/ Robert B. Knauss
--------------------------------
Name: Robert B. Knauss
Title: Partner
Warburg Pincus Partners GP LLC
By: Warburg Pincus & Co., its
managing member
By: /s/ Robert B. Knauss
--------------------------------
Name: Robert B. Knauss
Title: Partner
Warburg Pincus & Co.
By: /s/ Robert B. Knauss
--------------------------------
Name: Robert B. Knauss
Title: Partner
Warburg Pincus LLC
By: /s/ Robert B. Knauss
--------------------------------
Name: Robert B. Knauss
Title: Managing Director
Charles R. Kaye
By: /s/ Robert B. Knauss
--------------------------------
Name: Robert B. Knauss
Title: Attorney-in-fact*
Joseph P. Landy
By: /s/ Robert B. Knauss
--------------------------------
Name: Robert B. Knauss
Title: Attorney-in-fact*
* The Power of Attorney given by each of Mr. Kaye and Mr. Landy was
previously filed with the U.S. Securities & Exchange Commission on
November 26, 2013 as an exhibit to a statement on a Form 4 filed by
Warburg Pincus Private Equity IX, L.P. with respect to Laredo Petroleum,
Inc. (f/k/a Laredo Petroleum Holdings, Inc.) and is hereby incorporated
by reference.
