CEA Acquisition Corporation Common Stock Certificate

Notice:

The signature to this assignment must correspond with the name as written upon the face of the certificate in every particular, without alteration or enlargement or any change whatever.

Summary

This document is a stock certificate issued by CEA Acquisition Corporation, a Delaware company, certifying ownership of a specified number of fully paid and non-assessable shares of its common stock. The certificate is transferable on the corporation's books upon proper endorsement and is only valid when countersigned by the transfer agent and registered by the registrar. The certificate is subject to the corporation's Certificate of Incorporation and any amendments or board resolutions regarding stock rights. It also outlines procedures for transferring shares and requires signature guarantees for assignments.

EX-4.2 7 a2122010zex-4_2.htm EXHIBIT 4.2
QuickLinks -- Click here to rapidly navigate through this document

Exhibit 4.2

		NUMBER		SHARES
		AC

CEA ACQUISITION CORPORATION

INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

COMMON STOCK

SEE REVERSE FOR
CERTAIN DEFINITIONS

*This Certifies that*		CUSIP

is the owner of

FULLY PAID AND NON-ASSESSABLE SHARES OF THE PAR VALUE OF $.0001 EACH OF THE
COMMON STOCK OF

CEA ACQUISITION CORPORATION

transferable on the books of the Corporation in person or by duly authorized attorney upon surrender of this certificate properly endorsed.
This certificate is not valid unless countersigned by the Transfer Agent and registered by the Registrar.
Witness the seal of the Corporation and the facsimile signatures of its duly authorized officers.

Dated:
	CHAIRMAN		SECRETARY

The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations:

TEN COM—	as tenants in common	UNIF GIFT MIN ACT—		Custodian
TEN ENT—	as tenants by the entireties		(Cust)		(Minor)
JT TEN—	as joint tenants with right of survivorship	under Uniform Gifts to Minors
	and not as tenants in common	Act (State)

Additional Abbreviations may also be used though not in the above list.

CEA Acquisition Corporation

The Corporation will furnish without charge to each stockholder who so requests the powers, designations, preferences and relative, participating, optional or other special rights of each class of stock or series thereof of the Corporation and the qualifications, limitations, or restrictions of such preferences and/or rights. This certificate and the shares represented thereby are issued and shall be held subject to all the provisions of the Certificate of Incorporation and all amendments thereto and resolutions of the Board of Directors providing for the issue of shares of Preferred Stock (copies of which may be obtained from the secretary of the Corporation), to all of which the holder of this certificate by acceptiance hereof assents.

For value received, hereby sell, assign and transfer unto

PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE



(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)


				shares
of the capital stock represented by the within Certificate, and do hereby irrevocably constitute and appoint
				Attorney
to transfer the said stock on the books of the within named Corporation will full power of substitution in the premises.

Signature(s) Guaranteed:
THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15.

QuickLinks

Exhibit 4.2