X0303 4 2008-10-15 0 0001308547 Dolby Laboratories, Inc. DLB 0001315519 Jaffe Martin A C/O DOLBY LABORATORIES, INC. 100 POTRERO AVENUE SAN FRANCISCO CA 94103 0 1 0 0 Exec. V.P., Bus. Affairs Class A Common Stock 2008-10-15 4 C 0 5000 0 A 11000 D Class A Common Stock 2008-10-15 4 S 0 500 28.69 D 10500 D Class A Common Stock 2008-10-15 4 S 0 500 28.72 D 10000 D Class A Common Stock 2008-10-15 4 S 0 500 29.88 D 9500 D Class A Common Stock 2008-10-15 4 S 0 500 29.98 D 9000 D Class A Common Stock 2008-10-15 4 S 0 500 30.4002 D 8500 D Class A Common Stock 2008-10-15 4 S 0 450 30.09 D 8050 D Class A Common Stock 2008-10-15 4 S 0 50 30.10 D 8000 D Class A Common Stock 2008-10-15 4 S 0 200 30.13 D 7800 D Class A Common Stock 2008-10-15 4 S 0 300 30.14 D 7500 D Class A Common Stock 2008-10-15 4 S 0 500 30.20 D 7000 D Class A Common Stock 2008-10-15 4 S 0 100 30.26 D 6900 D Class A Common Stock 2008-10-15 4 S 0 400 30.27 D 6500 D Class A Common Stock 2008-10-15 4 S 0 500 30.65 D 6000 D Employee Stock Option (Right to Buy) 2.08 2008-10-15 4 M 0 5000 0 D 2004-04-21 Class B Common Stock 5000 18500 D Class B Common Stock 0 2008-10-15 4 M 0 5000 2.08 A Class A Common Stock 5000 7750 D Class B Common Stock 0 2008-10-15 4 C 0 5000 0 D Class A Common Stock 5000 2750 D Each share of Class A Common Stock issued upon conversion of one share of Class B Common Stock at the election of the reporting person. Shares held following the reported transactions, but none of the shares reported as sold, include 6,000 restricted stock units, which are subject to forfeiture until they vest. This option was granted for a total of 180,000 shares of Class B Common Stock. 1/4 of the total number of shares issuable under the option vests on each anniversary of April 1, 2004, the vesting commencement date. Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date. ***All of the sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.*** /s/ Alan G. Smith, Attorney-in-fact 2008-10-16