EXHIBIT
1
JOINT FILING
AGREEMENT
This Joint Filing
Agreement dated July 14, 2023 is by and between Camber Capital
Management LP, a Delaware limited partnership, and Stephen DuBois,
an individual (the foregoing are collectively referred to herein as
the "Filers"). Each of the Filers may be required to file with the
United States Securities and Exchange Commission a statement on
Schedule 13G with respect to common stock, $0.001 par value of
Inogen, Inc. beneficially owned by them from time to time. Pursuant
to and in accordance with Rule 13(d)(1)(k) promulgated under the
Securities Exchange Act of 1934, as amended, the Filers hereby
agree to file a single statement on Schedule 13D and/or 13G (and
any amendments thereto) on behalf of each of such parties, and
hereby further agree to file this Joint Filing Agreement as an
exhibit to such statement, as required by such rule. This Joint
Filing Agreement may be terminated by any of the Filers upon one
week's prior written notice or such lesser period of notice as the
Filers may mutually agree.
Executed and
delivered as of the date first above written.
CAMBER CAPITAL
MANAGEMENT LP
By: /s/ Sean
George
Sean
George
Chief Financial
Officer
STEPHEN DUBOIS
By: /s/ Stephen
DuBois