FORM 4
[ ] 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 OF SECURITIES
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                      	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	                      	

1. Name and Address of Reporting Person *

Maura David M	2. Issuer Name and Ticker or Trading Symbol

Mosaic Acquisition Corp. [ MOSC ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__X__ Director                    __X__ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
President and CEO	
(Last)         (First)         (Middle)

C/O MOSAIC ACQUISITION CORP., 375 PARK AVENUE	3. Date of Earliest Transaction (MM/DD/YYYY)

1/3/2020		
(Street)

NEW YORK, NY 10152
(City)       (State)       (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)

 	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. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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				
Class A Common Stock 	1/3/2020 	 	P	  	21049 	A	 (1)	322656 	D 	 	

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)	
1. Title of Derivate Security
(Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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	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 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					
Warrants 	$11.5 	1/6/2020 	 	P 	  	200  	  	 (3)	 (3)	Class A Common Stock 	200 	 (2)	$47133.33 	D 	 	

Explanation of Responses:	
(1) 	On January 3, 2020, Mr. Maura acquired, at a weighted average price of $10.2854 per share, 21,049 shares of Class A common stock, par value $0.0001 per share (the "Class A Shares"), of Mosaic Acquisition Corp. (the "Company"). The Class A Shares were purchased in multiple transactions at prices ranging from $10.27 to $10.29, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Class A Shares acquired at each separate price within the range set forth above.	
(2) 	On January 6, 2020, Mr. Maura acquired, at a weighted average price of $0.87975 per warrant, 200 warrants (the "Warrants") of the Company. The Warrants were purchased in multiple transactions at prices ranging from $0.8595 to $0.90, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Warrants acquired at each separate price within the range set forth above.	
(3) 	Each Warrant is exercisable for one Class A Share at an exercise price of $11.50 per Class A Share, subject to certain adjustments. The Warrants may be exercised only during the period commencing 30 days after the first date on which the Company completes a business combination and expiring five years after the completion of the Company's business combination or earlier upon redemption or liquidation.	

Reporting Owners	
Reporting Owner Name / Address	Relationships	
	Director	10% Owner	Officer	Other	
Maura David M
C/O MOSAIC ACQUISITION CORP.
375 PARK AVENUE
NEW YORK, NY 10152	X	X	President and CEO		

Signatures		
/s/ David M. Maura		1/6/2020	
**Signature of Reporting Person		Date

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).	
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).	
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.	
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.