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 *

Dorsey Jack	2. Issuer Name and Ticker or Trading Symbol

Square, Inc. [ SQ ]	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, CEO & Chairman	
(Last)          (First)          (Middle)

1455 MARKET STREET, SUITE 600	3. Date of Earliest Transaction (MM/DD/YYYY)

10/31/2018		
(Street)

SAN FRANCISCO, CA 94103
(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  	10/31/2018  	 	C (1)	  	103035  	A	$0.00  	103035  	I  	See Footnote   (2)	
Class A Common Stock  	10/31/2018  	 	S (3)	  	76184  	D	$71.63   (4)	26851  	I  	See Footnote   (2)	
Class A Common Stock  	10/31/2018  	 	S (3)	  	26851  	D	$72.22   (5)	0  	I  	See Footnote   (2)	

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					
Class B Common Stock   (6)	  (6)	10/31/2018  	 	C   (1)	  	  	103035   	  (6)	  (6)	Class A Common Stock  	103035  	$0.00  	54200026  	I  	See Footnote   (2)	
Class B Common Stock   (6)	  (6)	 	 	   	  	  	  	  (6)	  (6)	Class A Common Stock  	7752826  	 	7752826  	I  	See Footnote   (7)	

Explanation of Responses:	
(1) 	Represents the conversion of Class B Common Stock into Class A Common Stock held of record by the Jack Dorsey Revocable Trust u/a/d 12/8/10 (Dorsey Revocable Trust), for which the Reporting Person serves as Trustee.	
(2) 	The shares are held of record by the Dorsey Revocable Trust.	
(3) 	The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Dorsey Revocable Trust.	
(4) 	The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $71.08 to $72.07 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	
(5) 	The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $72.08 to $72.56 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.	
(6) 	Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.	
(7) 	The shares are held of record by the Jack Dorsey Remainder Trust u/a/d 6/23/10, for which the Reporting Person serves as Trustee.	

Reporting Owners	
Reporting Owner Name / Address	Relationships	
	Director	10% Owner	Officer	Other	
Dorsey Jack
1455 MARKET STREET
SUITE 600
SAN FRANCISCO, CA 94103	X	X	President, CEO & Chairman		

Signatures		
/s/ Shahzia Rahman, Attorney-in-Fact		11/2/2018	
** 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.	
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