MDU RES GROUP INC

Ticker: MDU CUSIP: 552690109 Class: COM

MARTINGALE ASSET MANAGEMENT L P's Holding History (CIK: 0000936944)

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

Q2 2022

Shares 160,156 Value ($000) $4,323 Avg Close $9.15 Range $8.51 - $9.69

Q1 2022

Shares 184,492 Value ($000) $4,918 Avg Close $9.45 Range $8.60 - $10.74

Q4 2021

Shares 218,511 Value ($000) $6,740 Avg Close $9.99 Range $9.15 - $10.63

Q3 2021

Shares 219,468 Value ($000) $6,512 Avg Close $10.53 Range $9.83 - $11.13

Q2 2021

Shares 217,858 Value ($000) $6,828 Avg Close $10.95 Range $10.22 - $11.62

Q1 2021

Shares 231,402 Value ($000) $7,316 Avg Close $9.46 Range $8.38 - $10.66

Q4 2020

Shares 361,398 Value ($000) $9,521 Avg Close $8.05 Range $7.18 - $8.74

Q3 2020

Shares 511,401 Value ($000) $11,507 Avg Close $7.32 Range $6.58 - $8.03

Q2 2020

Shares 712,967 Value ($000) $15,814 Avg Close $7.03 Range $5.94 - $8.01

Q1 2020

Shares 899,565 Value ($000) $19,342 Avg Close $8.83 Range $4.81 - $10.26

Q4 2019

Shares 532,659 Value ($000) $15,826 Avg Close $9.10 Range $8.60 - $9.50

Q3 2019

Shares 468,154 Value ($000) $13,198 Avg Close $8.44 Range $7.93 - $9.12

Q2 2019

Shares 446,371 Value ($000) $11,517 Avg Close $7.99 Range $7.59 - $8.30

Q1 2019

Shares 469,442 Value ($000) $12,127 Avg Close $7.90 Range $7.22 - $8.40

Q4 2018

Shares 404,812 Value ($000) $9,651 Avg Close $7.88 Range $7.03 - $8.27

Q3 2018

Shares 395,113 Value ($000) $10,151 Avg Close $8.58 Range $7.77 - $9.02

Q2 2018

Shares 597,991 Value ($000) $17,151 Avg Close $8.49 Range $8.18 - $8.87

Q1 2018

Shares 577,069 Value ($000) $16,251 Avg Close $8.03 Range $7.29 - $8.53

Q4 2017

Shares 428,670 Value ($000) $11,523 Avg Close $8.04 Range $7.71 - $8.41

Q3 2017

Shares 278,416 Value ($000) $7,225 Avg Close $7.77 Range $7.44 - $8.20

Q2 2017

Shares 265,666 Value ($000) $6,961 Avg Close $7.92 Range $7.51 - $8.25

Q1 2017

Shares 282,966 Value ($000) $7,745 Avg Close $8.03 Range $7.53 - $8.67

Q4 2016

Shares 148,569 Value ($000) $4,275 Avg Close $7.89 Range $7.09 - $8.72

Q3 2016

Shares 268,787 Value ($000) $6,838 Avg Close $6.91 Range $6.46 - $7.47

Q2 2016

Shares 351,597 Value ($000) $8,439 Avg Close $6.12 Range $5.33 - $6.90

Q1 2016

Shares 141,250 Value ($000) $2,749 Avg Close $5.02 Range $4.40 - $5.57

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2022	160,156	$4,323	$9.15	$8.51 - $9.69
Q1 2022	184,492	$4,918	$9.45	$8.60 - $10.74
Q4 2021	218,511	$6,740	$9.99	$9.15 - $10.63
Q3 2021	219,468	$6,512	$10.53	$9.83 - $11.13
Q2 2021	217,858	$6,828	$10.95	$10.22 - $11.62
Q1 2021	231,402	$7,316	$9.46	$8.38 - $10.66
Q4 2020	361,398	$9,521	$8.05	$7.18 - $8.74
Q3 2020	511,401	$11,507	$7.32	$6.58 - $8.03
Q2 2020	712,967	$15,814	$7.03	$5.94 - $8.01
Q1 2020	899,565	$19,342	$8.83	$4.81 - $10.26
Q4 2019	532,659	$15,826	$9.10	$8.60 - $9.50
Q3 2019	468,154	$13,198	$8.44	$7.93 - $9.12
Q2 2019	446,371	$11,517	$7.99	$7.59 - $8.30
Q1 2019	469,442	$12,127	$7.90	$7.22 - $8.40
Q4 2018	404,812	$9,651	$7.88	$7.03 - $8.27
Q3 2018	395,113	$10,151	$8.58	$7.77 - $9.02
Q2 2018	597,991	$17,151	$8.49	$8.18 - $8.87
Q1 2018	577,069	$16,251	$8.03	$7.29 - $8.53
Q4 2017	428,670	$11,523	$8.04	$7.71 - $8.41
Q3 2017	278,416	$7,225	$7.77	$7.44 - $8.20
Q2 2017	265,666	$6,961	$7.92	$7.51 - $8.25
Q1 2017	282,966	$7,745	$8.03	$7.53 - $8.67
Q4 2016	148,569	$4,275	$7.89	$7.09 - $8.72
Q3 2016	268,787	$6,838	$6.91	$6.46 - $7.47
Q2 2016	351,597	$8,439	$6.12	$5.33 - $6.90
Q1 2016	141,250	$2,749	$5.02	$4.40 - $5.57