Sec Form 3 Filing - Topper David Joseph @ Engility Holdings, Inc. - 2018-05-24

FORM 3 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 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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1. Name and Address of Reporting Person Topper David Joseph 2. Issuer Name and Ticker or Trading Symbol Engility Holdings, Inc. [ EGL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O GENERAL ATLANTIC SERVICE COMPANY, LP, 55 EAST 52ND STREET, 32ND FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 05/24/2018 (Street) NEW YORK, NY10055 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 $0.01 per share 8,960,446 I See footnotes ( 1 ) ( 2 )

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Topper David Joseph C/O GENERAL ATLANTIC SERVICE COMPANY, LP 55 EAST 52ND STREET, 32ND FLOOR NEW YORK, NY10055 X X Signatures /s/ David Joseph Topper 05/25/2018 Signature of Reporting Person Date

Explanation of Responses:

( 1 )By Birch Partners, LP ("Birch Partners"). Birch Partners directly holds all of the shares of common stock, par value $0.01 per share, of Engility Holdings, Inc. reported herein (the "Shares"). Birch GP, LLC is the general partner of Birch Partners. The members of Birch GP, LLC are General Atlantic Partners 85, L.P., a Delaware limited partnership ("GAP 85"), and KKR 2006 Fund L.P. The limited partners of Birch Partners include GAP 85, GAP Coinvestments III, LLC, a Delaware limited liability company ("GAPCO III"), GAP Coinvestments IV, LLC, a Delaware limited liability company ("GAPCO IV"), GAP Coinvestments CDA, L.P., a Delaware limited partnership ("GAPCO CDA"), and GAPCO GmbH & Co., KG, a German limited partnership ("KG" and, together with GAP 85, GAPCO III, GAPCO IV and GAPCO CDA, the "GA Funds"), as well as other investors. Collectively, the GA Funds may be deemed to have an indirect beneficial interest in 8,960,446 Shares held by Birch Partners. ( 2 )Mr. Topper is an Operating Partner of General Atlantic LLC ("GA LLC"). GA LLC is the general partner of General Atlantic GenPar, L.P., a Delaware limited partnership, which is the general partner of GAP 85. GA LLC is also the managing member of GAPCO III and GAPCO IV, and the general partner of GAPCO CDA. In addition, the managing directors of GA LLC control the voting and investment decisions of GAPCO Management GmbH, a German corporation, which is the general partner of KG. Mr. Topper disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of such securities for purposes of Section 16 or for any other purposes.

Remarks: The reporting person described in the notes above may be deemed to be a member of a "group" for purposes of the Securities Exchange Act of 1934. The reporting person disclaims beneficial ownership of any securities deemed to be owned by the group that are not directly owned by the reporting person. In addition, the reporting person described in the notes above may be deemed to be a member of a "group" for purposes of the Securities Exchange Act of 1934 with other limited partners of Birch Partners or other members of Birch GP, LLC. This report shall not be deemed an admission that the reporting person is a member of a group or the beneficial owner of any securities not directly owned by the reporting person.

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).

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