X0306 4 2018-02-09 0 0001308547 Dolby Laboratories, Inc. DLB 0001200469 YEAMAN KEVIN J C/O DOLBY LABORATORIES, INC. 1275 MARKET STREET SAN FRANCISCO CA 94103 1 1 0 0 President and CEO Class A Common Stock 2018-02-09 4 M 0 50000 28.24 A 112895 I By the Kevin and Rachel Yeaman Family Trust dated May 14, 2009 Class A Common Stock 2018-02-09 4 S 0 39904 58.7487 D 72991 I By the Kevin and Rachel Yeaman Family Trust dated May 14, 2009 Class A Common Stock 2018-02-09 4 S 0 7896 59.924 D 65095 I By the Kevin and Rachel Yeaman Family Trust dated May 14, 2009 Class A Common Stock 2018-02-09 4 S 0 2200 60.6487 D 62895 I By the Kevin and Rachel Yeaman Family Trust dated May 14, 2009 Class A Common Stock 2018-02-12 4 M 0 18548 28.24 A 81443 I By the Kevin and Rachel Yeaman Family Trust dated May 14, 2009 Class A Common Stock 2018-02-12 4 S 0 18548 61.4005 D 62895 I By the Kevin and Rachel Yeaman Family Trust dated May 14, 2009 Class A Common Stock 114828 D Employee Stock Option (right to buy) 28.24 2018-02-09 4 M 0 50000 0.00 D 2021-12-15 Class A Common Stock 50000 143824 I By the Kevin and Rachel Yeaman Family Trust, dated May 14, 2009 Employee Stock Option (right to buy) 28.24 2018-02-12 4 M 0 18548 0.00 D 2021-12-15 Class A Common Stock 18548 125276 I By the Kevin and Rachel Yeaman Family Trust, dated May 14, 2009 This transaction was executed in multiple trades at prices ranging from $58.38 to $59.3601. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades at prices ranging from $59.4201 to $60.37. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades at prices ranging from $60.4301 to $60.78. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades at prices ranging from $60.65 to $61.57. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected. Shares held following the reported transactions include 114,828 restricted stock units, which are subject to forfeiture until they vest. This option was granted for a total of 260,605 shares of Class A Common Stock. 1/4 of the total number of shares issuable under the option vested on the first anniversary of December 15, 2011, the vesting commencement date, and the balance of the shares vested in equal monthly installments over the next 36 months thereafter. The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan. /s/ Daniel Rodriguez, Attorney-in-Fact for Kevin Yeaman 2018-02-13