WORKIVA INC

Ticker: WK CUSIP: 98139A105 Class: Common Stock

FIRST NATIONAL BANK SIOUX FALLS's Holding History (CIK: 0001085041)

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

Q3 2016

Shares 4,601 Value ($000) $83 Avg Close $16.21 Range $13.19 - $19.04

Q2 2016

Shares 982 Value ($000) $13 Avg Close $12.68 Range $11.14 - $14.05

Q1 2016

Shares 982 Value ($000) $11 Avg Close $13.18 Range $10.91 - $17.48

Q4 2015

Shares 982 Value ($000) $17 Avg Close $17.27 Range $14.94 - $18.80

Q3 2015

Shares 982 Value ($000) $15 Avg Close $14.45 Range $12.83 - $16.34

Q2 2015

Shares 982 Value ($000) $13 Avg Close $14.02 Range $12.69 - $15.00

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2016	4,601	$83	$16.21	$13.19 - $19.04
Q2 2016	982	$13	$12.68	$11.14 - $14.05
Q1 2016	982	$11	$13.18	$10.91 - $17.48
Q4 2015	982	$17	$17.27	$14.94 - $18.80
Q3 2015	982	$15	$14.45	$12.83 - $16.34
Q2 2015	982	$13	$14.02	$12.69 - $15.00