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
                                                                                  	OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response... 0.5	
                      	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 *

Elliott Jeffrey Thomas	2. Issuer Name and Ticker or Trading Symbol

EXACT SCIENCES CORP [ EXAS ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
Chief Financial Officer	
(Last)          (First)          (Middle)

C/O EXACT SCIENCES CORP., 441 CHARMANY DRIVE	3. Date of Earliest Transaction (MM/DD/YYYY)

1/2/2019		
(Street)

MADISON, WI 53719
(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				
Common Stock  	10/31/2018  	 	A	  V	755   (1)	A	$13.26  	33211  	D  	 	
Common Stock  	 	 	 	  	 	 	 	781  	I  	Held in 401(K) Plan  	

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					
Performance Share Units   (2)	  (3)	1/2/2019  	 	A  	  	90909   	  	  (4)	  (4)	Common Stock  	90909  	$0.00  	90909  	D  	 	

Explanation of Responses:	
(1) 	Represents shares of common stock purchased through Employee Stock Purchase Plan.	
(2) 	Represents a PSU award granted on July 28, 2016 (the "PSU Award") which covered a three-year performance measurement period ending on December 31, 2018 (the "Performance Period") and was described in the Company's proxy statement filed with the Securities and Exchange Commission on April 28, 2017.	
(3) 	Each Performance Share Unit represents a right to receive one share of common stock.	
(4) 	The PSU Award was subject to certain performance-based vesting requirements tied to the growth in the Company's stock price through the end of the Performance Period as calculated by reference to the 20 trading day trailing average closing price of the Company's common stock (the "Stock Price") as of the last day of the Performance Period compared to such Stock Price as of the beginning of the Performance Period. The Stock Price as of the last day of the Performance Period was $67.25 representing a greater than 760% increase from the $8.85 Stock Price at the beginning of the Performance Period. At target, the PSU Award covered 60,606 PSUs. Because the Stock Price at the end of the Performance Period well exceeded the maximum target Stock Price, the reporting person earned the maximum number of PSUs to which he was entitled under the PSU Award. The PSUs are immediately vested and will settle into shares of Common Stock within 30 days from the date of issuance.	

Reporting Owners	
Reporting Owner Name / Address	Relationships	
	Director	10% Owner	Officer	Other	
Elliott Jeffrey Thomas
C/O EXACT SCIENCES CORP.
441 CHARMANY DRIVE
MADISON, WI 53719			Chief Financial Officer		

Signatures		
/s/ Jeffrey T. Elliott by Mark R. Busch, attorney-in-fact		1/4/2019	
** 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.