ARBITRON INC

CUSIP: 03875Q108 Class: COM

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q3 2013
Shares 13 Value ($000) $1 Avg Close — Range —
Q2 2013
Shares 2 Value ($000) $0 Avg Close — Range —