X0202 4 2007-10-01 0 0000109758 ARBITRON INC ARB 0001196539 MORRIS STEPHEN B 142 WEST 57TH STREET NEW YORK NY 10019 1 1 0 0 Chairman, President and CEO Common Stock 2007-10-01 4 M 0 6724 32.86 A 117105 D Common Stock 2007-10-01 4 S 0 224 45.49 D 116881 D Common Stock 2007-10-01 4 S 0 100 45.54 D 116781 D Common Stock 2007-10-01 4 S 0 200 45.59 D 116581 D Common Stock 2007-10-01 4 S 0 100 45.68 D 116481 D Common Stock 2007-10-01 4 S 0 100 45.61 D 116381 D Common Stock 2007-10-01 4 S 0 100 45.66 D 116281 D Common Stock 2007-10-01 4 S 0 100 45.75 D 116181 D Common Stock 2007-10-01 4 S 0 300 45.72 D 115881 D Common Stock 2007-10-01 4 S 0 100 45.76 D 115781 D Common Stock 2007-10-01 4 S 0 300 45.62 D 115481 D Common Stock 2007-10-01 4 S 0 300 45.63 D 115181 D Common Stock 2007-10-01 4 S 0 200 45.71 D 114981 D Common Stock 2007-10-01 4 S 0 100 45.64 D 114881 D Common Stock 2007-10-01 4 S 0 100 45.83 D 114781 D Common Stock 2007-10-01 4 S 0 100 45.91 D 114681 D Common Stock 2007-10-01 4 S 0 100 45.93 D 114581 D Common Stock 2007-10-01 4 S 0 100 45.97 D 114481 D Common Stock 2007-10-01 4 S 0 100 46.08 D 114381 D Common Stock 2007-10-01 4 S 0 100 46.32 D 114281 D Common Stock 2007-10-01 4 S 0 100 46.38 D 114181 D Common Stock 2007-10-01 4 S 0 200 46.40 D 113981 D Common Stock 2007-10-01 4 S 0 100 46.52 D 113881 D Common Stock 2007-10-01 4 S 0 200 46.59 D 113681 D Common Stock 2007-10-01 4 S 0 400 46.37 D 113281 D Common Stock 2007-10-01 4 S 0 300 46.43 D 112981 D Common Stock 2007-10-01 4 S 0 100 46.47 D 112881 D Common Stock 2007-10-01 4 S 0 200 46.57 D 112681 D Common Stock 2007-10-01 4 S 0 100 46.56 D 112581 D Common Stock 2007-10-01 4 S 0 300 46.58 D 112281 D Non-Qualified Stock Option (right to buy) 32.86 2007-10-01 4 M 0 6724 0.00 D 1999-10-21 2008-10-21 Common Stock 6724 6725 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 5, 2006. This filing is one of two Form 4 filings disclosing the transaction taking place on October 1, 2007 for the above reporting person. The amount of securities beneficially owned following all transactions reported on all Form 4 filings is 110,381. /s/ Timothy T. Smith Attorney in Fact for Stephen B. Morris 2007-10-03