PRINCIPAL FINANCIAL GROUP IN

Ticker: PFG CUSIP: 74251V102 Class: COM

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q4 2017

Shares 5,582 Value ($000) $394 Avg Close $50.32 Range $46.97 - $52.86

Q3 2017

Shares 5,582 Value ($000) $359 Avg Close $46.64 Range $43.45 - $48.99

Q2 2017

Shares 7,179 Value ($000) $460 Avg Close $45.66 Range $43.33 - $47.82

Q1 2017

Shares 4,034 Value ($000) $255 Avg Close $43.60 Range $40.01 - $46.42

Q4 2016

Shares 4,400 Value ($000) $255 Avg Close $39.76 Range $36.06 - $43.73

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	5,582	$394	$50.32	$46.97 - $52.86
Q3 2017	5,582	$359	$46.64	$43.45 - $48.99
Q2 2017	7,179	$460	$45.66	$43.33 - $47.82
Q1 2017	4,034	$255	$43.60	$40.01 - $46.42
Q4 2016	4,400	$255	$39.76	$36.06 - $43.73