ARKANSAS BEST CORP DEL

CUSIP: 040790107 Class: COM

PRINCIPAL FINANCIAL GROUP INC's Holding History (CIK: 0001126328)

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

Q1 2014
Shares 154,204 Value ($000) $5,698 Avg Close — Range —
Q4 2013
Shares 148,085 Value ($000) $4,988 Avg Close — Range —
Q3 2013
Shares 132,332 Value ($000) $3,397 Avg Close — Range —
Q2 2013
Shares 126,225 Value ($000) $2,897 Avg Close — Range —