MDU RES GROUP INC

Ticker: MDU CUSIP: 552690109 Class: COM

EDMOND DE ROTHSCHILD HOLDING S.A.'s Holding History (CIK: 0001649647)

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

Q3 2016

Shares 6,250 Value ($000) $159 Avg Close $6.91 Range $6.46 - $7.47

Q2 2016

Shares 6,250 Value ($000) $150 Avg Close $6.12 Range $5.33 - $6.90

Q1 2016

Shares 6,850 Value ($000) $133 Avg Close $5.02 Range $4.40 - $5.57

Q4 2015

Shares 6,850 Value ($000) $125 Avg Close $5.10 Range $4.59 - $5.49

Q3 2015

Shares 6,850 Value ($000) $118 Avg Close $4.95 Range $4.48 - $5.44

Q2 2015

Shares 7,050 Value ($000) $138 Avg Close $5.79 Range $5.30 - $6.32

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2016	6,250	$159	$6.91	$6.46 - $7.47
Q2 2016	6,250	$150	$6.12	$5.33 - $6.90
Q1 2016	6,850	$133	$5.02	$4.40 - $5.57
Q4 2015	6,850	$125	$5.10	$4.59 - $5.49
Q3 2015	6,850	$118	$4.95	$4.48 - $5.44
Q2 2015	7,050	$138	$5.79	$5.30 - $6.32