Statement of Changes in Beneficial Ownership (4)

FORM 4 [ X ] 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	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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 (MM/DD/YYYY) 6/6/2017
(Street) LOS ANGELES, CA 90067 (City) (State) (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person _ X _ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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)
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	6/6/2017		S		4377330 ⁽¹⁾	D	$22.42	2326108 ⁽²⁾	I	See footnote 3 and Remarks below ⁽³⁾

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		7. Title and Amount of Securities Underlying Derivative Security (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)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)			11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:
(1)	In connection with a secondary offering of shares of common stock of Air Transport Services Group, Inc. (the "Common Stock") by Red Mountain Partners, L.P. ("RMP") pursuant to an underwriting agreement and prospectus supplement and accompanying prospectus, each dated May 31, 2017 (the "Secondary Offering"), RMP, as selling shareholder, sold 4,377,330 shares of Common Stock to Merrill Lynch, Pierce, Fenner & Smith Incorporated, as underwriter, at a price of $22.42 per share. The Secondary Offering closed on June 6, 2017.
(2)	Each of the reporting persons hereunder ceased to be a beneficial owner of more than 10% of the Common Stock as of June 6, 2017, following the closing of the Secondary Offering.
(3)	These shares are held by RMP.

Remarks:
This Form 4 is jointly filed by (i) RMP, (ii) RMCP GP LLC ("RMCP GP"), (iii) Red Mountain Capital Partners LLC ("RMCP LLC"), (iv) Red Mountain Capital Management, Inc. ("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.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	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		6/6/2017
^** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	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).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.