016570| 003590|127c|restricted||4|057-423 COMMON STOCK PAR VALUE $0.01 COMMON STOCK THIS CERTIFICATE IS TRANSFERABLE IN CANTON, MA, JERSEY CITY, NJ AND NEW YORK, NY Shares Certificate Number ZQ 000000 ENGILITY HOLDINGS, INC. INCORPORATED UNDER THE LAWS ...

by Engility Holdings, Inc.
March 16th, 2015

Exhibit 4.3

LOGO

 

016570| 003590|127C|RESTRICTED||4|057-423

COMMON STOCK

PAR VALUE $0.01

COMMON STOCK

THIS CERTIFICATE IS TRANSFERABLE IN CANTON, MA, JERSEY CITY, NJ AND

NEW YORK, NY

Shares

* * * * 000000 * 000000 ****** ***** ***** **** 000000 000000* **** * * ****** 000000* *

Certificate Number

ZQ 000000

ENGILITY HOLDINGS, INC.

INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample MR **** Mr. Alexander . SAMPLE David Sample **** Mr. Alexander David &Sample MRS **** Mr. Alexander . David SAMPLE Sample **** Mr. Alexander David & Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander MR David . Sample SAMPLE **** Mr. Alexander David Sample & **** Mr . Alexander MRS David Sample . **** SAMPLE Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Sample **** Mr. Sample

**000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**

Shares****000000**Shares****000000**Shares***

CUSIP 29286C 10 7

SEE REVERSE FOR CERTAIN DEFINITIONS

THIS CERTIFIES THAT

**000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**

Shares****000000**Shares****000000**Shares*** *000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**

Shares****000000**Shares****000000**Shares**** 000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**

Shares****000000**Shares****000000**Shares****0 00000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**

Shares****000000**Shares****000000**Shares****00 ***ZERO HUNDRED THOUSAND 0000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**

Shares****000000**Shares****000000**Shares****000 000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**

Shares****000000**Shares****000000**Shares****0000 00**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**

Shares****000000**Shares****000000**Shares****00000 0**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**

Shares****000000**Shares****000000**Shares****000000 **Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**

Shares****000000**Shares****000000**Shares****000000* ZERO HUNDRED AND ZERO*** *Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares

****000000**Shares****000000**Shares****000000** Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares

****000000**Shares****000000**Shares****000000**S

FULLY-PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK OF

Engility Holdings, Inc. (hereinafter called the “Corporation”), transferable on the books of the Corporation in person or by duly authorized attorney, upon surrender of this Certificate properly endorsed. This Certificate and the shares represented hereby, are issued and shall be held subject to all of the provisions of the Articles of Incorporation, as amended, and the By-Laws, as amended, of the Corporation (copies of which are on file with the Corporation and with the Transfer Agent), to all of which each holder, by acceptance hereof, assents. This Certificate is not valid unless countersigned and registered by the Transfer Agent and Registrar.

Witness the facsimile seal of the Corporation and the facsimile signatures of its duly authorized officers.

DATED <<Month Day, Year>>

COUNTERSIGNED AND REGISTERED:

COMPUTERSHARE TRUST COMPANY, N.A.

TRANSFER AGENT AND REGISTRAR,

By

AUTHORIZED SIGNATURE

President

Secretary

PO BOX 43004, Providence, RI 02940-3004

MR A SAMPLE

DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4

CUSIP XXXXXX XX X Holder ID XXXXXXXXXX

Insurance Value 1,000,000.00 Number of Shares 123456

DTC 12345678 123456789012345

Certificate Numbers Num/No. Denom. Total

1234567890/1234567890 1 1 1 1234567890/1234567890 2 2 2 1234567890/1234567890 3 3 3 1234567890/1234567890 4 4 4 1234567890/1234567890 5 5 5 1234567890/1234567890 6 6 6

Total Transaction 7


LOGO

ENGILITY HOLDINGS, INC.

THE CORPORATION WILL FURNISH WITHOUT CHARGE TO EACH SHAREHOLDER WHO SO REQUESTS, A SUMMARY OF THE POWERS, DESIGNATIONS, PREFERENCES AND RELATIVE, PARTICIPATING, OPTIONAL OR OTHER SPECIAL RIGHTS OF EACH CLASS OF STOCK OF THE CORPORATION AND THE QUALIFICATIONS, LIMITATIONS OR RESTRICTIONS OF SUCH PREFERENCES AND RIGHTS, AND THE VARIATIONS IN RIGHTS, PREFERENCES AND LIMITATIONS DETERMINED FOR EACH SERIES, WHICH ARE FIXED BY THE ARTICLES OF INCORPORATION OF THE CORPORATION, AS AMENDED, AND THE RESOLUTIONS OF THE BOARD OF DIRECTORS OF THE CORPORATION, AND THE AUTHORITY OF THE BOARD OF DIRECTORS TO DETERMINE VARIATIONS FOR FUTURE SERIES. SUCH REQUEST MAY BE MADE TO THE OFFICE OF THE SECRETARY OF THE CORPORATION OR TO THE TRANSFER AGENT. THE BOARD OF DIRECTORS MAY REQUIRE THE OWNER OF A LOST OR DESTROYED STOCK CERTIFICATE, OR HIS LEGAL REPRESENTATIVES, TO GIVE THE CORPORATION A BOND TO INDEMNIFY IT AND ITS TRANSFER AGENTS AND REGISTRARS AGAINST ANY CLAIM THAT MAY BE MADE AGAINST THEM ON ACCOUNT OF THE ALLEGED LOSS OR DESTRUCTION OF ANY SUCH CERTIFICATE.

The transfer of the securities represented hereby is subject to significant ownership and transfer restrictions pursuant to Article Eleventh of the Amended and Restated Certificate of Incorporation of the Corporation, as it may be amended from time to time. The Corporation will furnish a copy of its Amended and Restated Certificate of Incorporation to the holder of record of this Certificate without charge upon a written request addressed to the Corporation at its principal place of business.

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 . . . . . . . . . . . . . . .

(Cust) (Minor)

TEN ENT—as tenants by the entireties under Uniform Gifts to Minors Act . . . . . . . . . . . . .

(State)

JT TEN—as joint tenants with right of survivorship UNIF TRF MIN ACT . . . . . . . . . . . . . . ..Custodian (until age. . . ). . . . . . . . . . . and not as tenants in common (Cust) (Minor) under Uniform Transfers to Minors Act. . . . . . . . . .

(State)

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

PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE

For value received,             hereby sell, assign and transfer unto

(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING POSTAL 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 with full power of substitution in the premises.

Dated:             20            Signature(s) Guaranteed: Medallion Guarantee Stamp

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.

Signature:             

Signature:             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.

The IRS requires that we report the cost basis of certain shares acquired after January 1, 2011. If your shares were covered by the legislation and you have sold or transferred the shares and requested a specific cost basis calculation method, we have processed as requested. If you did not specify a cost basis calculation method, we have defaulted to the first in, first out (FIFO) method. Please visit our website or consult your tax advisor if you need additional information about cost basis.

If you do not keep in contact with us or do not have any activity in your account for the time periods specified by state law, your property could become subject to state unclaimed property laws and transferred to the appropriate state.