Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 28 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Feb. 27, 2026 ECG A 12,011 · · 129,493 Direct +10.22% Acquired (price as of 2026-10-05)
Feb. 27, 2026 ECG F 2,142 $120.87 $258,904 127,351 Direct -1.65% Disposed 1.6% (price as of 2026-10-05)
Feb. 27, 2026 ECG F 9,855 $120.87 $1,191,174 117,496 Direct -7.74% Disposed 1.6% (price as of 2026-10-05)
Feb. 20, 2025 ECG A 16,333 · · 125,877 Direct +14.91% Acquired (price as of 2026-10-05)
Feb. 20, 2025 ECG F 8,395 $46.54 $390,703 117,482 Direct -6.67% Disposed 163.8% (price as of 2026-10-05)
Feb. 15, 2024 MDU A 55,260 · · 281,215 Direct +24.46% Acquired (price as of 2026-10-05)
Feb. 15, 2024 MDU F 12,046 $20.85 $251,159 269,169 Direct -4.28% Disposed 61.0% (price as of 2026-10-05)
May 31, 2023 MDU A 19,064 · · 171,528 Direct +12.50% Acquired (price as of 2026-10-05)
May 31, 2023 MDU A 14,263 · · 185,791 Direct +8.32% Acquired (price as of 2026-10-05)
Feb. 16, 2023 MDU A 30,736 · · 140,161 Direct +28.09% Acquired (price as of 2026-10-05)
Feb. 16, 2023 MDU A 18,371 $31.16 $572,440 158,532 Direct +13.11% Acquired 57.0% (price as of 2026-10-05)
Feb. 16, 2023 MDU F 6,851 $31.16 $213,477 151,681 Direct -4.32% Disposed 57.0% (price as of 2026-10-05)
Feb. 17, 2022 MDU A 6,957 · · 106,482 Direct +6.99% Acquired (price as of 2026-10-05)
Feb. 17, 2022 MDU A 32,656 $27.73 $905,551 104,880 Direct +45.21% Acquired 76.4% (price as of 2026-10-05)
Feb. 17, 2022 MDU F 12,346 $27.73 $342,355 92,534 Direct -11.77% Disposed 76.4% (price as of 2026-10-05)
Feb. 11, 2021 MDU A 6,991 · · 99,525 Direct +7.56% Acquired (price as of 2026-10-05)
Feb. 11, 2021 MDU A 31,176 $27.35 $852,664 74,318 Direct +72.26% Acquired 78.9% (price as of 2026-10-05)
Feb. 11, 2021 MDU A 11,419 $27.35 $312,310 85,738 Direct +15.36% Acquired 78.9% (price as of 2026-10-05)
Feb. 11, 2021 MDU F 3,685 $27.35 $100,785 82,052 Direct -4.30% Disposed 78.9% (price as of 2026-10-05)
Feb. 11, 2021 MDU F 11,791 $27.35 $322,484 70,262 Direct -14.37% Disposed 78.9% (price as of 2026-10-05)
Feb. 13, 2020 MDU A 3,144 $31.63 $99,445 42,491 Direct +7.99% Acquired 54.7% (price as of 2026-10-05)
Feb. 13, 2020 MDU F 900 $31.63 $28,467 41,591 Direct -2.12% Disposed 54.7% (price as of 2026-10-05)
Feb. 14, 2019 MDU F 6,877 $26.25 $180,521 38,188 Direct -15.26% Disposed 86.3% (price as of 2026-10-05)
Feb. 14, 2019 MDU A 27,673 · · 45,065 Direct +159.11% Acquired (price as of 2026-10-05)
Feb. 16, 2018 MDU F 4,557 $27.48 $125,226 17,392 Direct -20.76% Disposed 78.0% (price as of 2026-10-05)
Feb. 16, 2018 MDU A 18,198 · · 21,949 Direct +485.15% Acquired (price as of 2026-10-05)
Feb. 16, 2017 MDU F 1,598 $26.37 $42,139 3,751 Direct -29.87% Disposed 85.5% (price as of 2026-10-05)
Feb. 16, 2017 MDU A 5,349 · · 5,349 Direct · Acquired (price as of 2026-10-05)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Initial ownership (Form 3) 1 holding

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
May 22, 2013 MDU Common Stock - (401-k) [F1] 1,821 Indirect

Compensation (DEF 14A)

08

Matched by name from proxy statements (DEF 14A) — verify against the filing.

MDU

Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2023 $550,000 · · · $605,138 · $131,524 $2,267,545
2022 $530,000 · · · $613,343 · $166,470 $2,170,462
2021 $507,500 · · · $293,462 · $171,822 $1,848,932

ECG

Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2024 $620,833 · · · $892,342 · $128,200 $2,793,546

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.