X0508 4 2023-12-15 0 0001308547 Dolby Laboratories, Inc. DLB 0001767009 Nicholson Ryan C/O DOLBY LABORATORIES, INC. 1275 MARKET STREET SAN FRANCISCO CA 94103 0 1 0 0 VP, Corporate Controller 0 Class A Common Stock 2023-12-15 4 A 0 6253 0.00 A 25623 D Class A Common Stock 2023-12-15 4 F 0 1350 88.60 D 24273 D Class A Common Stock 2023-12-16 4 F 0 195 87.49 D 24078 D Award represents a total of 6,253 restricted stock units granted under the terms of the Issuer's 2020 Stock Plan. Under the terms of the restricted stock unit grant agreement, 1/4 of the total number of units shall vest on each anniversary of December 15, 2023. Each unit represents a contingent right to receive one share of the Issuer's Class A Common Stock upon vesting. Shares held following the reported transactions include 19,030 shares of Class A common stock underlying restricted stock units, which are subject to forfeiture until they vest. Shares include 293 shares and 64 shares acquired under the Issuer's Employee Stock Purchase Plan on May 15, 2023 and November 15, 2023, respectively. In accordance with Rule 16b-3, shares reported as disposed of were withheld by the Issuer in a transaction exempt from Section 16(b) and not issued to the reporting person in order to cover withholding taxes incidental to the vesting of restricted stock units. Shares held following the reported transactions include 15,133 shares of Class A common stock underlying restricted stock units, which are subject to forfeiture until they vest. Shares held following the reported transactions include 14,570 shares of Class A common stock underlying restricted stock units, which are subject to forfeiture until they vest. /s/ Daniel Rodriguez, Attorney-in-Fact for Ryan Nicholson 2023-12-19