SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
X	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* EINHORN DAVID (Last) (First) (Middle) 140 EAST 45TH STREET FLOOR 24 (Street) NEW YORK NY 10017 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol REPUBLIC AIRWAYS HOLDINGS INC [ RJET ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 05/12/2010
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person 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. 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, par value $0.001 per share	05/12/2010		S		600	D	$6.21	168,069(1)(2)(3)	I	See Footnote(4)
Common Stock, par value $0.001 per share	05/12/2010		S		22,900	D	$6.21	1,122,405(1)(2)(3)	I	See Footnote(5)
Common Stock, par value $0.001 per share	05/12/2010		S		5,800	D	$6.21	1,560,597(1)(2)(3)	I	See Footnote(6)
Common Stock, par value $0.001 per share								457,327(1)(2)(3)	I	See Footnote(7)
Common Stock, par value $0.001 per share	05/12/2010		S		700	D	$6.21	71,319(1)(2)(3)	I	See Footnote(8)
Common Stock, par value $0.001 per share								33,083(1)(2)(3)	I	See Footnote(9)

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 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: 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

Explanation of Responses:

1. David Einhorn is the senior managing member of Greenlight Capital, L.L.C. ("Greenlight LLC"), DME Advisors GP, LLC ("DME GP") and DME Management GP, LLC ("DME Management GP"), and the president of Greenlight Capital, Inc. ("Greenlight Inc."). DME GP is the general partner of DME Advisors, LP ("DME") and DME Capital Management, LP ("DME CM").

2. One or more of the foregoing entities control the disposition and voting of shares of common stock, par value $0.001 per share (the "Common Stock"), of Republic Airways Holdings Inc. ("Issuer"), owned by one or more of the following entities: Greenlight Capital, L.P. ("Greenlight Fund"), Greenlight Capital Qualified, L.P. ("Greenlight Qualified"), Greenlight Capital Offshore Partners ("Greenlight Offshore"), Greenlight Capital (Gold), LP ("Greenlight Gold"), Greenlight Capital Offshore Master (Gold), Ltd. ("Greenlight Gold Offshore") and an account managed by DME (the "Managed Account," and, together with Greenlight Fund, Greenlight Qualified, Greenlight Offshore, Greenlight Gold, Greenlight Gold Offshore, Greenlight LLC, Greenlight Inc., DME GP, DME, DME Management GP and DME CM, the "Greenlight Parties"), in the respective capacities and quantities further described in the footnotes below.

3. Pursuant to Rule 16a-1 under the Securities Exchange Act of 1934, as amended (the "Act"), Mr. Einhorn and the Greenlight Parties disclaim beneficial ownership of the Common Stock except to the extent of their respective pecuniary interests therein. The filing of this Form 4 shall not be construed as an admission that David Einhorn or any of the Greenlight Parties is or was for the purposes of Section 16(a) of the Act, or otherwise, the beneficial owner of any of the shares of Common Stock owned by Greenlight Fund, Greenlight Qualified, Greenlight Offshore, Greenlight Gold, Greenlight Gold Offshore, or the Managed Account.

4. Greenlight LLC controls the voting and disposition of 168,069 shares of Common Stock through the account of Greenlight Fund, of which Greenlight LLC is the general partner. As the senior managing member of Greenlight LLC, Mr. Einhorn may be deemed to beneficially own the securities held by Greenlight Fund.

5. Greenlight LLC controls the voting and disposition of 1,122,405 shares of Common Stock through the account of Greenlight Qualified, of which Greenlight LLC is the general partner. As the senior managing member of Greenlight LLC, Mr. Einhorn may be deemed to beneficially own the securities held by Greenlight Qualified.

6. Greenlight Inc. controls the voting and disposition of 1,560,597 shares of Common Stock through the account of Greenlight Offshore. Greenlight Inc. is the investment manager of Greenlight Offshore. As the president of Greenlight Inc., Mr. Einhorn may be deemed to beneficially own the shares held by Greenlight Offshore.

7. DME controls the voting and disposition of 457,327 shares of Common Stock through the Managed Account, for which DME serves as the investment manager. As the senior managing member of DME GP, which is the general partner of DME, Mr. Einhorn may be deemed to beneficially own the shares held by the Managed Account.

8. DME Management GP controls the voting and disposition of 71,319 shares of Common Stock through the account of Greenlight Gold, of which DME Management GP is the general partner. As the senior managing member of DME Management GP, Mr. Einhorn may be deemed to beneficially own the securities held by Greenlight Gold.

9. DME CM controls the voting and disposition of 33,083 shares of Common Stock through the account of Greenlight Gold Offshore, of which DME CM is the investment manager. As the senior managing member of DME GP, which is the general partner of DME CM, Mr. Einhorn may be deemed to beneficially own the shares held by Greenlight Gold Offshore.

Remarks:

	/s/ David Einhorn	05/14/2010
	** Signature of Reporting Person	Date
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