Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 25 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

25 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
June 14, 2021 MDU S 17,795 $33.04 $587,947 556,526 Indirect -3.10% Disposed 48.1% (price as of 2026-10-02)
June 9, 2021 MDU S 1 $33.50 $34 574,321 Indirect 0.00% Disposed 46.1% (price as of 2026-10-02)
June 8, 2021 MDU S 50,000 $33.51 $1,675,500 574,322 Indirect -8.01% Disposed 46.1% (price as of 2026-10-02)
June 7, 2021 MDU S 75,000 $33.70 $2,527,500 624,322 Indirect -10.72% Disposed 45.2% (price as of 2026-10-02)
June 4, 2021 MDU S 70,678 $33.97 $2,400,932 699,322 Indirect -9.18% Disposed 44.1% (price as of 2026-10-02)
Aug. 24, 2016 MDU S 30,000 $23.44 $703,200 770,000 Indirect -3.75% Disposed 108.8% (price as of 2026-10-02)
Aug. 23, 2016 MDU S 30,000 $23.68 $710,400 800,000 Indirect -3.61% Disposed 106.7% (price as of 2026-10-02)
Aug. 22, 2016 MDU S 30,000 $23.58 $707,400 830,000 Indirect -3.49% Disposed 107.6% (price as of 2026-10-02)
Aug. 19, 2016 MDU S 30,000 $23.40 $702,000 860,000 Indirect -3.37% Disposed 109.2% (price as of 2026-10-02)
Aug. 18, 2016 MDU S 30,000 $23.44 $703,200 890,000 Indirect -3.26% Disposed 108.8% (price as of 2026-10-02)
Aug. 17, 2016 MDU S 30,000 $23.16 $694,800 920,000 Indirect -3.16% Disposed 111.3% (price as of 2026-10-02)
Aug. 16, 2016 MDU S 30,000 $23.14 $694,200 950,000 Indirect -3.06% Disposed 111.5% (price as of 2026-10-02)
Aug. 15, 2016 MDU S 30,000 $23.70 $711,000 980,000 Indirect -2.97% Disposed 106.5% (price as of 2026-10-02)
Aug. 12, 2016 MDU S 30,000 $23.61 $708,300 1,010,000 Indirect -2.88% Disposed 107.3% (price as of 2026-10-02)
Aug. 11, 2016 MDU S 30,000 $23.32 $699,600 1,040,000 Indirect -2.80% Disposed 109.9% (price as of 2026-10-02)
June 18, 2013 MDU S 30,000 $25.47 $764,100 1,070,000 Indirect -2.73% Disposed 92.2% (price as of 2026-10-02)
June 17, 2013 MDU S 30,000 $25.27 $758,100 1,100,000 Indirect -2.65% Disposed 93.7% (price as of 2026-10-02)
June 14, 2013 MDU S 30,000 $25.06 $751,800 1,130,000 Indirect -2.59% Disposed 95.3% (price as of 2026-10-02)
June 13, 2013 MDU S 30,000 $25.03 $750,900 1,160,000 Indirect -2.52% Disposed 95.5% (price as of 2026-10-02)
June 12, 2013 MDU S 30,000 $25.08 $752,400 1,190,000 Indirect -2.46% Disposed 95.1% (price as of 2026-10-02)
June 11, 2013 MDU S 30,000 $25.32 $759,600 1,220,000 Indirect -2.40% Disposed 93.3% (price as of 2026-10-02)
June 10, 2013 MDU S 30,000 $25.54 $766,200 1,250,000 Indirect -2.34% Disposed 91.6% (price as of 2026-10-02)
June 7, 2013 MDU S 30,000 $25.27 $758,100 1,280,000 Indirect -2.29% Disposed 93.7% (price as of 2026-10-02)
June 6, 2013 MDU S 30,000 $25.13 $753,900 1,310,000 Indirect -2.24% Disposed 94.8% (price as of 2026-10-02)
June 5, 2013 MDU S 30,000 $25.06 $751,800 1,340,000 Indirect -2.19% Disposed 95.3% (price as of 2026-10-02)
June 4, 2013 MDU S 30,000 $25.38 $761,400 1,370,000 Indirect -2.14% Disposed 92.8% (price as of 2026-10-02)
June 3, 2013 MDU S 30,000 $25.71 $771,300 1,400,000 Indirect -2.10% Disposed 90.4% (price as of 2026-10-02)
May 23, 2013 MDU S 30,000 $25.93 $777,900 1,430,000 Indirect -2.05% Disposed 88.7% (price as of 2026-10-02)
May 22, 2013 MDU S 30,000 $26.65 $799,500 1,460,000 Indirect -2.01% Disposed 83.6% (price as of 2026-10-02)
May 21, 2013 MDU S 30,000 $26.72 $801,600 1,490,000 Indirect -1.97% Disposed 83.2% (price as of 2026-10-02)
May 20, 2013 MDU S 30,000 $26.99 $809,700 1,520,000 Indirect -1.94% Disposed 81.3% (price as of 2026-10-02)
May 17, 2013 MDU S 30,000 $26.98 $809,400 1,550,000 Indirect -1.90% Disposed 81.4% (price as of 2026-10-02)
May 16, 2013 MDU S 30,000 $26.95 $808,500 1,580,000 Indirect -1.86% Disposed 81.6% (price as of 2026-10-02)
May 15, 2013 MDU S 30,000 $26.89 $806,700 1,610,000 Indirect -1.83% Disposed 82.0% (price as of 2026-10-02)
May 14, 2013 MDU S 30,000 $26.69 $800,700 1,640,000 Indirect -1.80% Disposed 83.4% (price as of 2026-10-02)
May 13, 2013 MDU S 30,000 $26.56 $796,800 1,670,000 Indirect -1.76% Disposed 84.3% (price as of 2026-10-02)
May 10, 2013 MDU S 30,000 $26.38 $791,400 1,700,000 Indirect -1.73% Disposed 85.5% (price as of 2026-10-02)
May 9, 2013 MDU S 30,000 $26.58 $797,400 1,730,000 Indirect -1.70% Disposed 84.1% (price as of 2026-10-02)
May 8, 2013 MDU S 30,000 $26.68 $800,400 1,760,000 Indirect -1.68% Disposed 83.4% (price as of 2026-10-02)
May 7, 2013 MDU S 30,000 $26.54 $796,200 1,790,000 Indirect -1.65% Disposed 84.4% (price as of 2026-10-02)
May 22, 2008 MDU S 100 $31.81 $3,181 1,835,702 Indirect -0.01% Disposed 53.9% (price as of 2026-10-02)
May 22, 2008 MDU S 200 $31.80 $6,360 1,835,802 Indirect -0.01% Disposed 53.9% (price as of 2026-10-02)
May 22, 2008 MDU S 1,800 $31.80 $57,240 1,836,002 Indirect -0.10% Disposed 53.9% (price as of 2026-10-02)
May 22, 2008 MDU S 300 $31.80 $9,540 1,837,802 Indirect -0.02% Disposed 53.9% (price as of 2026-10-02)
May 22, 2008 MDU S 300 $31.79 $9,537 1,838,102 Indirect -0.02% Disposed 54.0% (price as of 2026-10-02)
May 22, 2008 MDU S 898 $31.78 $28,538 1,838,402 Indirect -0.05% Disposed 54.0% (price as of 2026-10-02)
May 22, 2008 MDU S 100 $31.78 $3,178 1,839,300 Indirect -0.01% Disposed 54.0% (price as of 2026-10-02)
May 22, 2008 MDU S 400 $31.77 $12,708 1,839,400 Indirect -0.02% Disposed 54.1% (price as of 2026-10-02)
May 22, 2008 MDU S 1,973 $31.76 $62,662 1,839,800 Indirect -0.11% Disposed 54.1% (price as of 2026-10-02)
May 22, 2008 MDU S 1,900 $31.75 $60,325 1,841,773 Indirect -0.10% Disposed 54.1% (price as of 2026-10-02)
May 22, 2008 MDU S 400 $31.74 $12,696 1,843,673 Indirect -0.02% Disposed 54.2% (price as of 2026-10-02)
May 22, 2008 MDU S 1,385 $31.74 $43,960 1,844,073 Indirect -0.08% Disposed 54.2% (price as of 2026-10-02)
May 22, 2008 MDU S 415 $31.73 $13,168 1,845,458 Indirect -0.02% Disposed 54.2% (price as of 2026-10-02)
May 22, 2008 MDU S 900 $31.72 $28,548 1,845,873 Indirect -0.05% Disposed 54.3% (price as of 2026-10-02)
May 22, 2008 MDU S 900 $31.71 $28,539 1,846,773 Indirect -0.05% Disposed 54.3% (price as of 2026-10-02)
May 22, 2008 MDU S 2,300 $31.70 $72,910 1,847,673 Indirect -0.12% Disposed 54.4% (price as of 2026-10-02)
May 22, 2008 MDU S 400 $31.69 $12,676 1,849,973 Indirect -0.02% Disposed 54.4% (price as of 2026-10-02)
May 22, 2008 MDU S 1,400 $31.68 $44,352 1,850,373 Indirect -0.08% Disposed 54.5% (price as of 2026-10-02)
May 22, 2008 MDU S 1,628 $31.67 $51,559 1,851,773 Indirect -0.09% Disposed 54.5% (price as of 2026-10-02)
May 22, 2008 MDU S 199 $31.66 $6,300 1,853,401 Indirect -0.01% Disposed 54.6% (price as of 2026-10-02)
May 22, 2008 MDU S 1,500 $31.65 $47,475 1,853,600 Indirect -0.08% Disposed 54.6% (price as of 2026-10-02)
May 22, 2008 MDU S 1,100 $31.64 $34,804 1,855,100 Indirect -0.06% Disposed 54.7% (price as of 2026-10-02)
May 22, 2008 MDU S 135 $31.63 $4,270 1,856,200 Indirect -0.01% Disposed 54.7% (price as of 2026-10-02)
May 22, 2008 MDU S 400 $31.62 $12,648 1,856,335 Indirect -0.02% Disposed 54.8% (price as of 2026-10-02)
May 22, 2008 MDU S 900 $31.61 $28,449 1,856,735 Indirect -0.05% Disposed 54.8% (price as of 2026-10-02)
May 22, 2008 MDU S 1,465 $31.60 $46,294 1,857,635 Indirect -0.08% Disposed 54.9% (price as of 2026-10-02)
May 22, 2008 MDU S 900 $31.59 $28,431 1,859,100 Indirect -0.05% Disposed 54.9% (price as of 2026-10-02)
May 22, 2008 MDU S 100 $32.03 $3,203 1,820,000 Indirect -0.01% Disposed 52.8% (price as of 2026-10-02)
May 22, 2008 MDU S 800 $32.02 $25,616 1,820,100 Indirect -0.04% Disposed 52.8% (price as of 2026-10-02)
May 22, 2008 MDU S 100 $32.01 $3,201 1,820,900 Indirect -0.01% Disposed 52.9% (price as of 2026-10-02)
May 22, 2008 MDU S 1,200 $32.00 $38,400 1,821,000 Indirect -0.07% Disposed 52.9% (price as of 2026-10-02)
May 22, 2008 MDU S 1,300 $31.98 $41,574 1,822,200 Indirect -0.07% Disposed 53.0% (price as of 2026-10-02)
May 22, 2008 MDU S 1,600 $31.93 $51,088 1,823,500 Indirect -0.09% Disposed 53.3% (price as of 2026-10-02)
May 22, 2008 MDU S 1,600 $31.92 $51,072 1,825,100 Indirect -0.09% Disposed 53.3% (price as of 2026-10-02)
May 22, 2008 MDU S 600 $31.91 $19,146 1,826,700 Indirect -0.03% Disposed 53.4% (price as of 2026-10-02)

Showing latest 100 of 914 transactions

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.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Feb. 23, 2012 MDU Stock Options (Right to Buy) Common Stock (6,750) $13.03 May 16, 2012 6,750 Disposed
Feb. 23, 2011 MDU Stock Options (Right to Buy) Common Stock (6,750) $17.13 May 17, 2011 6,750 Disposed
May 7, 2010 MDU Stock Options (Right to Buy) Common Stock (5,062) $9.61 May 13, 2010 5,062 Disposed
May 20, 2009 MDU Stock Options (Right to Buy) Common Stock (5,062) $10.36 June 4, 2009 5,062 Disposed
May 30, 2008 MDU Stock Option Common Stock (5,062) $10.26 June 4, 2008 5,062 Disposed
Dec. 30, 2005 MDU Phantom Stock Common Stock (467) · · 467 Acquired
Sept. 30, 2005 MDU Phantom Stock Common Stock (394) · · 394 Acquired
June 30, 2005 MDU Phantom Stock Common Stock (543) · · 543 Acquired
March 31, 2005 MDU Phantom Stock Common Stock (608) · · 608 Acquired
Dec. 31, 2004 MDU Phantom Stock Common Stock (502) · · 502 Acquired
Sept. 30, 2004 MDU Phantom Stock Common Stock (397) · · 397 Acquired
June 30, 2004 MDU Phantom Stock Common Stock (802) · · 802 Acquired
March 31, 2004 MDU Phantom Stock Common Stock (621) · · 621 Acquired
Dec. 31, 2003 MDU Phantom Stock Common Stock (7,087) · · 787 Acquired
Sept. 30, 2003 MDU Phantom Stock Common Stock (417) · · 417 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).