PRINCIPAL FINANCIAL GROUP

CUSIP: 74251v102 Class: COM

TOCQUEVILLE ASSET MANAGEMENT L.P.'s Holding History (CIK: 0000883961)

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

Q2 2014
Shares 255 Value ($000) $13 Avg Close — Range —
Q1 2014
Shares 247 Value ($000) $11 Avg Close — Range —
Q4 2013
Shares 350 Value ($000) $17 Avg Close — Range —