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Insider · CIK 0001626019

Jason L Vollmer

cfoofficer

Files at MDU (MDU RESOURCES GROUP INC). First filing Aug 19, 2025, latest Sep 9, 2025.

In brief

Jason L Vollmer files SEC Form 4 as CFO at MDU (MDU RESOURCES GROUP INC). Since Aug 19, 2025, Jason L Vollmer has reported 2 open-market buys worth $162k and 0 open-market sells worth $0, the latest filed on Sep 9, 2025.

A track record needs three past buys with six months of prices behind them; Jason L Vollmer has 0, so none is measured yet.

The newest scored trade: bought $80k of MDU on Sep 8, 2025, filed Sep 9, 2025, scored 40 (moderate).

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
2 / 0
$162k bought, $0 sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

MDU: MDU RESOURCES GROUP INC

MDUOct 12, 2026 · close 18.65

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
40Moderate
MDUbuy
MDU RESOURCES GROUP INC
$80k
5,000 shares
+1%+19% from low-18% from high
35Weak
MDUbuy
MDU RESOURCES GROUP INC
$81k
5,000 shares
+1%+21% from low-17% from high

Transactions

Every row this insider has filed, 6 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Feb 17, 2026MDU
MDU RESOURCES GROUP INC
AGrant or award
Common Stock
+15,229$0.00$0361,742Feb 19, 2026
Feb 18, 2026MDU
MDU RESOURCES GROUP INC
FTax withholding
Common Stock
-36,766$20.36$749k324,976Feb 19, 2026
Sep 8, 2025MDU
MDU RESOURCES GROUP INC
POpen-market purchase
Common Stock
+5,000$16.08$80k344,548Sep 9, 2025
Aug 19, 2025MDU
MDU RESOURCES GROUP INC
POpen-market purchase
Common Stock
+5,000$16.28$81k339,548Aug 19, 2025
Feb 15, 2024MDU
MDU RESOURCES GROUP INC
AGrant or award
Common Stock
+56,459$0.00$0227,681Feb 16, 2024
Feb 15, 2024MDU
MDU RESOURCES GROUP INC
FTax withholding
Common Stock
-12,067$20.85$252k215,614Feb 16, 2024

Questions about Jason L Vollmer

Answered from the filings on this page, as of the latest one.

Is Jason L Vollmer buying or selling?

Not in the last 12 months. Jason L Vollmer's latest open-market trade on SEC Form 4 was bought $80k of MDU on Sep 8, 2025.

How did Jason L Vollmer's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Jason L Vollmer has 0.

Where does Jason L Vollmer file Form 4?

Jason L Vollmer has filed Form 4 at MDU (MDU RESOURCES GROUP INC) as VP & CFO. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Jason L Vollmer: insider trades and track record | InsiderTell