ARBITRON INC

CUSIP: 03875Q108 Class: COM

GLENMEDE TRUST CO NA's Holding History (CIK: 0000314949)

Note: Option positions (PUT/CALL) are excluded.

Q4 2007
Shares 4,311 Value ($000) $187 Avg Close — Range —
Q1 2007
Shares 4,311 Value ($000) $202 Avg Close — Range —
Q4 2006
Shares 4,311 Value ($000) $187 Avg Close — Range —