13D Filing: James E. Flynn and AveXis Inc (AVXS)

CUSIP No.  05366U100

13D/A

Page 12 of 15 Pages

(3)       Deerfield
Special Situations Fund

Sole power to vote or direct the vote:
0

Shared power to vote or direct the vote:
230,585

Sole power to dispose or to direct the
disposition: 0

Shared power to dispose or direct the disposition:
230,585

(4)       Deerfield
Private Design Fund III

Sole power to vote or direct the vote:
0

Shared power to vote or direct the vote:
1,343,202

Sole power to dispose or to direct the
disposition: 0

Shared power to dispose or direct the disposition:
1,343,202

(5)       Deerfield
Partners

Sole power to vote or direct the vote:
0

Shared power to vote or direct the vote:
160,143

Sole power to dispose or to direct the
disposition: 0

Shared power to dispose or direct the disposition:
160,143

(6)       Deerfield
International Master Fund

Sole power to vote or direct the vote:
0

Shared power to vote or direct the vote:
111,286

Sole power to dispose or to direct the
disposition: 0

Shared power to dispose or direct the disposition:
111,286

(7)       Deerfield
Mgmt III

Sole power to vote or direct the vote:
0

Shared power to vote or direct the vote:
1,343,202

Sole power to dispose or to direct the
disposition: 0

Shared power to dispose or direct the disposition:
1,343,202

(8)       Flynn

Sole power to vote or direct the vote:
0

Shared power to vote or direct the vote:
1,857,862

Sole power to dispose or to direct the
disposition: 0

Shared power to dispose or direct the disposition:
1,857,862

Flynn is the sole member of the general
partner of each of Deerfield Mgmt, Deerfield Mgmt III and Deerfield Management. Deerfield Mgmt is the general partner, and Deerfield
Management is the investment advisor, of Deerfield Special Situations Fund, Deerfield Partners and Deerfield International Master
Fund. Deerfield Mgmt III is the general partner, and Deerfield Management is the investment advisor, of Deerfield Private Design
Fund III.