X0306 4 2016-01-07 0 0000819050 VICAL INC VICL 0001198238 SAMANT VIJAY B 10390 PACIFIC CENTER COURT SAN DIEGO CA 92121 1 1 0 0 President & CEO Common Stock $.01 par value 2016-01-07 4 S 0 75000 0.3612 D 1066563 D Sale of 75,000 shares of common stock to cover withholding taxes on restricted stock units released. The sale was affected by a broker pursuant to instructions set forth in a Rule 10b5-1 plan adopted by the Reporting Person and delivered to the broker on February 25, 2014. Represents a weighted average sales price per share. The prices actually received ranged from $0.35 to $0.39. The Reporting Person has provided to the issuer, and will provide to any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. This balance includes 468,110 unvested shares subject to restricted stock units. Sandy Medina (via Power of Attorney) 2016-01-08