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Who

Jason L. Vollmer

CFO

Company insider

Files Form 4 as: CFO, MDU Resources Group.

Every Form 4 they filed

In numbers

Trades disclosed
33
Buys
5
Sells
0
Bought
$239K
Sold
$0
Companies
1
Companies where not an officer
0
First trade
17 Feb 2015
Last trade
18 Feb 2026
Last filed
19 Feb 2026

Companies traded

Where they are an officer
MDU MDU Resources GroupOfficer · Diversified & Base Metal Miners · last 18 Feb 20265 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
01Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
18 Feb 2026filed 19 Feb 2026MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code F$749K36,766 at $20.36filing
18 Feb 2026filed 19 Feb 2026MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code F$749K36,766 at $20.36filing
17 Feb 2026filed 19 Feb 2026MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code A—15,229 at $0.00filing
17 Feb 2026filed 19 Feb 2026MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code A—15,229 at $0.00filing
8 Sep 2025filed 9 Sep 2025MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Bought$80K5,000 at $16.08filing
19 Aug 2025filed 19 Aug 2025MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Bought$81K5,000 at $16.28filing
12 Feb 2025filed 14 Feb 2025MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code A—16,700 at $0.00filing
12 Feb 2025filed 14 Feb 2025MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code F$512K30,429 at $16.83filing
15 Feb 2024filed 16 Feb 2024MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code A—56,459 at $0.00filing
15 Feb 2024filed 16 Feb 2024MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code F$252K12,067 at $20.85filing
31 May 2023filed 1 Jun 2023MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code A—19,064 at $0.00filing
31 May 2023filed 1 Jun 2023MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code A—13,771 at $0.00filing
16 Feb 2023filed 21 Feb 2023MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code A—31,574 at $0.00filing
16 Feb 2023filed 21 Feb 2023MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code A$517K16,581 at $31.16filing
16 Feb 2023filed 21 Feb 2023MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code F$202K6,486 at $31.16filing
17 Feb 2022filed 28 Feb 2022MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code A—6,957 at $0.00filing
17 Feb 2022filed 22 Feb 2022MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code A$743K26,795 at $27.73filing
17 Feb 2022filed 22 Feb 2022MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code F$295K10,652 at $27.73filing
11 Feb 2021filed 28 Feb 2022MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code A—6,750 at $0.00filing
11 Feb 2021filed 16 Feb 2021MDU MDU Resources GroupDiversified & Base Metal MinersSEC FORM 4 Code A$656K23,980 at $27.35filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Materials5

Buys in green, sells in red, by the company’s sector.

Related people

Vernon A. DoschDirector · Director at Mdu Resources Group, filing Form 4 there in the last year
Marian M. DurkinDirector · Director at Mdu Resources Group, filing Form 4 there in the last year
Nicole A. KivistoPresident & CEO · President & CEO at Mdu Resources Group, filing Form 4 there in the last year
Anne M. JonesChiefHRSafety&AdminOfficer · ChiefHRSafety&AdminOfficer at Mdu Resources Group, filing Form 4 there in the last year
Stephanie A. SievertChiefAccntg&RegAffairsOfficer · ChiefAccntg&RegAffairsOfficer at Mdu Resources Group, filing Form 4 there in the last year