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 *

Mammen Mammen	2. Issuer Name and Ticker or Trading Symbol

VICAL INC [ VICL ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
Sr VP, Clinical Development	
(Last)          (First)          (Middle)

10390 PACIFIC CENTER COURT	3. Date of Earliest Transaction (MM/DD/YYYY)

5/25/2017		
(Street)

SAN DIEGO, CA 92121
(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				

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					
Nonstatutory Stock Option (right to buy)  	$2.36  	5/25/2017  	 	A  	  	10000   	  	5/25/2018   (1)	5/24/2027  	Common Stock  	10000  	$0.00  	10000  	D  	 	

Explanation of Responses:	
(1) 	The right to exercise the above stock option generally vests one-fourth on the first anniversary of the grant, with the remaining rights vesting quarterly over the remaining three years.	

Reporting Owners	
Reporting Owner Name / Address	Relationships	
	Director	10% Owner	Officer	Other	
Mammen Mammen
10390 PACIFIC CENTER COURT
SAN DIEGO, CA 92121			Sr VP, Clinical Development		

Signatures		
Sandy R. Medina (via Power of Attorney)		5/30/2017	
** 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.	

POWER OF ATTORNEY

        "Know all by these present, that the undersigned hereby constitutes and
appoints each of Anthony Ramos "
"and Sandy Medina or either of them signing singly, and 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 more than 10% stockholder of Vical Incorporated (the
""Company""), "
"Forms 3, 4, and 5 in accordance with Section 16(a) of the Securities Exchange
Act of 1934 and the "
rules thereunder;

        -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 Form 3, 4, or 5,
complete and execute "
"any amendment or amendments thereto, and timely file such form with the SEC and
any stock "
exchange or similar authority; and

        -3      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 interest 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-fact's 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.

        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.  "
The undersigned hereby revokes all previous powers of attorney granted with
respect to the undersigned's holdings
of and transactions in securities issued by the Company.

        "IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this "
"25th day of May, 2017."

/s/ MAMMEN MAMMEN
Signature