SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Fortress Investment Group LLC (Last) (First) (Middle) 1345 AVENUE OF THE AMERICAS 46TH FLOOR (Street) NEW YORK NY 10105 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 10/18/2017	3. Issuer Name and Ticker or Trading Symbol Mosaic Acquisition Corp. [ MOSC ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Class F ordinary shares, par value $0.0001 per share	(1)	(1)	Class A ordinary shares, par value $0.0001 per share	4,297,500	(1)	I	See Explanation of Responses(1)(2)(3)(4)

1. Name and Address of Reporting Person* Fortress Investment Group LLC (Last) (First) (Middle) 1345 AVENUE OF THE AMERICAS 46TH FLOOR (Street) NEW YORK NY 10105 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* FIG Asset Co. LLC (Last) (First) (Middle) 1345 AVENUE OF THE AMERICAS 46TH FLOOR (Street) NEW YORK NY 10105 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Principal Holdings I LP (Last) (First) (Middle) 1345 AVENUE OF THE AMERICAS 46TH FLOOR (Street) NEW YORK NY 10105 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Fortress Mosaic Sponsor LLC (Last) (First) (Middle) 1345 AVENUE OF THE AMERICAS 46TH FLOOR (Street) NEW YORK NY 10105 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. Fortress Mosaic Sponsor LLC ("Sponsor") directly owns 4,297,500 Class F ordinary shares, par value $0.0001 per share (the "Class F Shares"), of Mosaic Acquisition Corp. (the "Issuer"), including 562,500 Class F Shares that are subject to forfeiture if the underwriters of the Issuer's initial public offering do not exercise in full an option granted to it to cover over-allotments. Pursuant to the Amended and Restated Memorandum and Articles of Association of the Issuer, the Class F Shares have no expiration date and (i) are convertible into Class A ordinary shares, par value $0.0001 per share ("Class A Shares"), of the Issuer at any time at the option of the holder on a one-for-one basis and (ii) will automatically convert into Class A Shares at the time of the Issuer's initial business combination on a one-for-one basis, in each case, subject to adjustment.

2. The managing member of the Sponsor is Principal Holdings I LP ("Holdings"), whose general parter is FIG Asset Co. LLC ("FIG"), whose sole member is Fortress Investment Group LLC ("Fortress" and, together with Sponsor, Holdings and FIG, "the Reporting Persons").

3. Because of the relationship among the Reporting Persons, the Reporting Persons may be deemed to beneficially own the securities reported herein to the extent of their respective pecuniary interests. Each Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, if any.

4. Pursuant to Rule 16a-1(a)(4) under the Exchange Act, this filing shall not be deemed an admission that the Reporting Persons are, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owners of any equity securities in excess of their respective pecuniary interests.

Remarks:

Exhibit 99.1 Joint Filer Information, incorporated herein by reference.

	/s/ David N. Brooks, Authorized Signatory, FORTRESS INVESTMENT GROUP LLC	10/18/2017
	/s/ David N. Brooks, Authorized Signatory, FIG ASSET CO. LLC	10/18/2017
	/s/ David N. Brooks, Authorized Signatory, PRINCIPAL HOLDINGS I LP	10/18/2017
	/s/ David N. Brooks, Authorized Signatory, FORTRESS MOSAIC SPONSOR LLC	10/18/2017
	** Signature of Reporting Person	Date
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