MarketPeel
Insider Trading Intelligence
DJ

Dennis W. Johnson

MDU
DIRECTOR · MDU RESOURCES GROUP INC · CIK 0001195487
FILING MIX · LIFETIME100%/0%
BUYS
8
SELLS
0
TOTAL VALUE
$1.26M
COMPANIES
1
ACTIVE SINCE
May 2020
HOLDINGS NOW
187,945
AVG SELL PX
TRADE KIND
SHOWING 8 / 8
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
2 backtested trades · 8 horizons · 1 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Dennis W. Johnson, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d2+100.00%+3.51%+2.29%+1.23%+1.23%
14d2+100.00%+5.14%+2.52%+2.62%+2.62%
30d2+100.00%+3.09%-0.43%+3.51%+3.51%
60d2+100.00%+2.94%-0.25%+3.19%+3.19%
90d2+100.00%+9.36%+7.80%+1.56%+1.56%
180d2+100.00%+15.46%+15.47%-0.02%-0.02%
1y2+100.00%+50.10%+31.65%+18.45%+18.45%
2y2(1 pending)+100.00%+36.65%+45.12%-8.47%-8.47%
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
MDU · 187,945 shares · as of Nov 13, 2025
046,98693,973140,959187,94520212022202320242025SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
FLOW · 8 buys / 0 sellsCOVERAGE · 23 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
MDU
MDU RESOURCES GROUP INC
PURCHASEGRANT
Stock grant
7,779187,945Nov 13, 2025Nov 14, 2025View →
MDU
MDU RESOURCES GROUP INC
PURCHASE
30,000$16.64$499.2K180,166Feb 10, 2025Feb 10, 2025View →
MDU
MDU RESOURCES GROUP INC
PURCHASEGRANT
Stock grant
9,541150,166Nov 15, 2024Nov 19, 2024View →
MDU
MDU RESOURCES GROUP INC
PURCHASEGRANT
Stock grant
9,343$18.73$175.0K139,364.352Nov 15, 2023Nov 17, 2023View →
MDU
MDU RESOURCES GROUP INC
PURCHASEGRANT
Stock grant
5,712$30.64$175.0K127,632.988Nov 21, 2022Nov 22, 2022View →
MDU
MDU RESOURCES GROUP INC
PURCHASEGRANT
Stock grant
5,693$28.98$165.0K119,658.338Nov 16, 2021Nov 17, 2021View →
MDU
MDU RESOURCES GROUP INC
PURCHASEGRANT
Stock grant
5,905$25.40$150.0K111,937.853Nov 17, 2020Nov 18, 2020View →
MDU
MDU RESOURCES GROUP INC
PURCHASE
5,000$18.80$94.0K104,752.067May 14, 2020May 15, 2020View →
Other insiders · MDU
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About this filer
CIK 0001195487
ROLE
Director
PRIMARY
MDU
COMPANIES
1
ACTIVE SINCE
May 2020
MARKETPEEL · /INSIDER/0001195487DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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