MDU RES GROUP INC

Ticker: MDU CUSIP: 552690109 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2025
Shares 600 Value ($000) $12 Avg Close $19.57 Range $17.31 - $21.34
Q1 2025
Shares 182 Value ($000) $3 Avg Close $16.76 Range $15.90 - $18.33
Q1 2024
Shares 492 Value ($000) $12 Avg Close $10.98 Range $9.86 - $13.32
Q2 2022
Shares 36 Value ($000) $1 Avg Close $9.15 Range $8.51 - $9.69
Q2 2021
Shares 7,745 Value ($000) $243 Avg Close $10.95 Range $10.22 - $11.62
Q2 2017
Shares 7,100 Value ($000) $186 Avg Close $7.92 Range $7.51 - $8.25
Q1 2017
Shares 7,320 Value ($000) $200 Avg Close $8.03 Range $7.53 - $8.67
Q4 2016
Shares 320 Value ($000) $9 Avg Close $7.89 Range $7.09 - $8.72
Q4 2015
Shares 772 Value ($000) $14 Avg Close $5.10 Range $4.59 - $5.49
Q3 2015
Shares 5,072 Value ($000) $87 Avg Close $4.95 Range $4.48 - $5.44
Q2 2015
Shares 1,872 Value ($000) $37 Avg Close $5.79 Range $5.30 - $6.32
Q3 2014
Shares 652 Value ($000) $18 Avg Close $8.38 Range $7.36 - $9.47
Q2 2014
Shares 2,940 Value ($000) $103 Avg Close $9.15 Range $8.68 - $9.59
Q1 2014
Shares 11,163 Value ($000) $383 Avg Close $8.65 Range $7.84 - $9.29
Q4 2013
Shares 4,963 Value ($000) $152 Avg Close $7.80 Range $7.24 - $8.15
Q2 2013
Shares 5,958 Value ($000) $154 Avg Close $6.58 Range $6.07 - $7.05