13G Filing: James E. Flynn and Mannkind Corp (MNKD)

MannKind Corporation

25134
Rye Canyon Loop, Suite 300

Valencia, California 91355

James
E. Flynn, Deerfield Mgmt, L.P., Deerfield Management Company, L.P., Deerfield Private Design Fund II, L.P., Deerfield Private
Design International II, L.P.

James E. Flynn, Deerfield Mgmt, L.P., Deerfield
Management Company, L.P., Deerfield Private Design Fund II, L.P., Deerfield Private Design International II, L.P., 780 Third Avenue,
37th Floor, New York, NY 10017

Deerfield
Mgmt, L.P., Deerfield Management Company, L.P., Deerfield Private Design Fund II, L.P. – Delaware limited partnerships;

Deerfield
Private Design International II, L.P. – British Virgin Islands limited partnerships;

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.

An employee benefit plan or endowment fund in accordance
with Rule 13d-1(b)(1)(ii)(F);