SEC Form 4 
FORM 4	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
or Section 30(h) of the Investment Company Act of 1940 	  
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	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).			
1. Name and Address of Reporting Person*
Riggsbee Richard Bryan	

(Last)	(First)	(Middle)	
320 WAKARA WAY	

(Street) 
SALT LAKE CITY	UT	84108	

(City)	(State)	(Zip)	
	2. Issuer Name and Ticker or Trading Symbol 
MYRIAD GENETICS INC [ MYGN ] 	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	
		
	3. Date of Earliest Transaction (Month/Day/Year)
08/01/2019 		
	4. If Amendment, Date of Original Filed (Month/Day/Year)	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. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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	08/01/2019		S(1) 		25,000	D	$41.503 	120,566	D		
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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)	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: 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					
Explanation of Responses:	
1. This transaction was effected pursuant to a Rule 10b5-1 trading plan.	
	By: Nathan A. Smith For: Richard Bryan Riggsbee	08/02/2019	
	** 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 Number.	
POWER OF ATTORNEY

Know all by these presents, that the undersigned
hereby constitutes and appoints each of Benjamin Jackson,
R. Bryan Riggsbee, Nathan A. Smith and Ben Wheeler
of Myriad Genetics, Inc. the Company, and Jonathan
L. Kravetz, Daniel Follansbee,
Page Hubben and Anne Leland of
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.,
signing singly, with full power of substitution,
the undersigned s true
and lawful attorney-in-fact to:

1       execute for and on behalf of the undersigned,
in the undersigned s capacity as an officer,
director and/or 10% shareholder of the Company,
forms and authentication documents for EDGAR Filing Access;

2       do and perform any and all acts for and
on behalf of the undersigned which may be necessary
or desirable to complete and execute any such forms
and authentication documents;

3       execute for and on behalf of the undersigned,
in the undersigned s capacity as an officer, director
and/or 10% shareholder of the Company,
Forms 3, 4 and 5 in accordance with Section
16a of the Securities Exchange Act of 1934,
as amended,
and the rules thereunder;

4       do and perform any and all acts for and on
behalf of the undersigned which may be necessary
or desirable to complete and execute any such
Form 3, 4 or 5 and timely file such form with
the United States Securities and Exchange Commission
and any stock exchange or similar authority; and

5       take any other action of any type whatsoever
in connection with the foregoing which, in the opinion
of such attorney-in-fact, may be of benefit to, in the
best interests of, or legally required by, the undersigned,
it being understood that the documents executed by
such attorney-in-fact, on behalf of the undersigned
pursuant to this Power of Attorney, shall be in such
form and shall contain such terms and conditions
as such attorney-in-fact may approve in such
attorney-in-fact s discretion.

The undersigned hereby grants to each such
attorney-in-fact full power and authority
to do and perform any and every act and
thing whatsoever requisite, necessary, or
proper to be done in the exercise of any
of the rights and powers herein granted,
as fully to all intents and purposes
as the undersigned might or could do if personally
present, with full power of substitution or
revocation, hereby ratifying and confirming all
that such attorney-in-fact, or such attorney-in-facts
substitute or substitutes, shall lawfully do or cause
to be done by virtue of this power
of attorney and the rights and powers herein granted.
The undersigned acknowledges that the foregoing
attorneys-in-fact, in serving in such
capacity at the request of the undersigned,
are not assuming, nor is the Company assuming,
any of the undersigned s responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934,
as amended.

This Power of Attorney shall remain in full force
and effect until the undersigned is no longer
required to file Forms 3, 4 and 5 with respect
to the undersigned s holdings of and transactions
in securities issued by the Company, unless
earlier revoked by the undersigned in a signed
writing delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused
this Power of Attorney to be executed this
12 day of June 2019.

/s/ R. Bryan Riggsbee

R. Bryan Riggsbee