Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
MESDAG WILLEM
   2. Issuer Name and Ticker or Trading Symbol
Air Transport Services Group, Inc. [ATSG] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
Please refer to Remarks below
(Last)
(First)
(Middle)
C/O RED MOUNTAIN CAPITAL PARTNERS LLC, 10100 SANTA MONICA BOULEVARD, SUITE 925		 3. Date of Earliest Transaction (Month/Day/Year)
03/10/2017
(Street)

LOS ANGELES, CA 90067		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 03/10/2017   S   343,624 D $ 17.17 (1) 6,983,247 I See footnote 1 and Remarks below (2)
Common Stock 03/13/2017   S   211,557 D $ 16.55 (3) 6,771,690 I See footnote 3 and Remarks below (2)
Common Stock 03/14/2017   S   68,252 D $ 16 (4) 6,703,438 I See footnote 4 and Remarks below (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
MESDAG WILLEM
C/O RED MOUNTAIN CAPITAL PARTNERS LLC
10100 SANTA MONICA BOULEVARD, SUITE 925
LOS ANGELES, CA 90067		       Please refer to Remarks below
RED MOUNTAIN PARTNERS, L.P.
10100 SANTA MONICA BOULEVARD
SUITE 925
LOS ANGELES, CA 90067		     X    
RED MOUNTAIN CAPITAL PARTNERS LLC
10100 SANTA MONICA BOULEVARD
SUITE 925
LOS ANGELES, CA 90067		       Please refer to Remarks below
RMCP GP LLC
10100 SANTA MONICA BOULEVARD
SUITE 925
LOS ANGELES, CA 90067		       Please refer to Remarks below
RED MOUNTAIN CAPITAL MANAGEMENT INC
10100 SANTA MONICA BOULEVARD
SUITE 925
LOS ANGELES, CA 90067		       Please refer to Remarks below

Signatures

 /s/ Willem Mesdag, on behalf of himself and each of the other reporting persons   03/14/2017
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) These shares of Common Stock were sold by Red Mountain Partners, L.P. ("RMP") on the open market. The price reported in Column 4 is a weighted average per share sale price. These shares were sold in multiple transactions at prices ranging from $17.00 to $17.62, inclusive. Each of RMP, RMCP GP LLC ("RMCP GP"), Red Mountain Capital Partners LLC ("RMCP LLC"), Red Mountain Capital Management, Inc. ("RMCM"), and Willem Mesdag undertakes to provide to Air Transport Services Group, Inc. (the "Company"), any securityholder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the price at which these shares were sold.
(2) These shares are held by RMP.
(3) These shares of Common Stock were sold by RMP on the open market. The price reported in Column 4 is a weighted average per share sale price. These shares were sold in multiple transactions at prices ranging from $16.45 to $16.98, inclusive. Each of RMP, RMCP GP, RMCP LLC, RMCM, and Mr. Mesdag undertakes to provide to the Company, any securityholder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the price at which these shares were sold.
(4) These shares of Common Stock were sold by RMP on the open market. The price reported in Column 4 is a weighted average per share sale price. These shares were sold in multiple transactions at prices ranging from $15.85 to $16.15, inclusive. Each of RMP, RMCP GP, RMCP LLC, RMCM, and Mr. Mesdag undertakes to provide to the Company, any securityholder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the price at which these shares were sold.
 
Remarks:
This Form 4 is jointly filed by (i) RMP, (ii) RMCP GP, (iii) RMCP LLC, (iv) RMCM, and (v) Mr. Mesdag. RMCP GP is the general partner of RMP. RMCP LLC is the managing member of RMCP GP. RMCM is the managing member of RMCP LLC. Mr. Mesdag is the president, sole executive officer, sole director and sole shareholder of RMCM. Each of Mr. Mesdag, RMCM, RMCP LLC, and RMCP GP, by virtue of their direct or indirect control of RMP, may be deemed to beneficially own some or all of the securities reported as being held by RMP. Each of the reporting persons hereunder disclaims beneficial ownership of the reported securities except to the extent of its or his pecuniary interest therein. This Form 4 shall not be deemed to be an admission that any reporting person hereunder is the beneficial owner of any of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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