13D Filing: Red Mountain Capital and Air Transport Services Group Inc. (ATSG)

Other than shares of Common Stock beneficially owned by RMP, and other than, in the case of Mr. Teets,
shares of Common Stock underlying restricted stock units granted to Mr. Teets in connection with his service on the board of directors of ATSG, none of the Reporting Persons or Mr. Teets may be deemed to beneficially own any shares of
Common Stock.

Each of RMCP LLC, RMP and RMCP GP affirms membership in a group with each other but disclaims membership in a group with
RMCM or Mr. Mesdag. Each of RMCM and Mr. Mesdag disclaims membership in a group with any person.

The filing of this
Schedule 13D shall not be construed as an admission that any Reporting Person is the beneficial owner of any of the shares of Common Stock that such Reporting Person may be deemed to beneficially own. Without limiting the foregoing sentence,
each of RMCM and Mr. Mesdag disclaims beneficial ownership of all shares of Common Stock reported in this Schedule 13D. In addition, the filing of this Schedule 13D shall not be construed as an admission that any partner, member,
director, officer or affiliate of any Reporting Person is the beneficial owner of any of the shares of Common Stock that such partner, member, director, officer or affiliate may be deemed to beneficially own. Without limiting the foregoing sentence,
Mr. Teets disclaims beneficial ownership of all shares of Common Stock reported in this Schedule 13D.

Item 5(c) of this Schedule 13D
is hereby amended to include the following information:

Item 5(e) of this Schedule 13D is hereby amended to include the following information: