Vollmer Jason L

Director at Knife River Corp · on record since May 10, 2023
Director at Everus Construction Group, Inc. · on record since Oct 17, 2024
Treasurer at Everus Construction Group, Inc. · on record since Oct 17, 2024
CFO at MDU RESOURCES GROUP INC · on record since Feb 20, 2018

Insider trading activity of Vollmer Jason L

Transactions on record: 31; since Feb 18, 2015

Open-market buys: 7; $239.1K

Open-market sells: 0

Companies traded: 1; last filing Feb 19, 2026

Figures computed from official regulatory filings — .

Companies where Vollmer Jason L has traded

MDU RESOURCES GROUP INC31 tx · $4.6M · Feb 19, 2026

Track record of Vollmer Jason L

Statistical track record

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Open-market buys: 7

Last buy: Sep 8, 2025

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Transaction history of Vollmer Jason L

Co-insiders of Vollmer Jason L

Carmona-Alvarez GermanKnife River Corp +1
DELLA ROCCA MICHAELEverus Construction Group, Inc. +1
EVERIST THOMAS SKnife River Corp +1
Fagg Karen BKnife River Corp +1

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
MDU RESOURCES GROUP INCListing on record	Feb 19, 2026	Other	-36,766	20.36 USD	$748.6K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Feb 19, 2026	Award	15,229	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Sep 9, 2025	Buy	5,000	16.08 USD	$80.4K	conv 50	SEC
MDU RESOURCES GROUP INCListing on record	Aug 19, 2025	Buy	5,000	16.28 USD	$81.4K	conv 69Unusual sizeFirst in 12mo	SEC
MDU RESOURCES GROUP INCListing on record	Feb 14, 2025	Award	16,700	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Feb 14, 2025	Other	-30,429	16.83 USD	$512.1K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Feb 16, 2024	Award	56,459	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Feb 16, 2024	Other	-12,067	20.85 USD	$251.6K		SEC
MDU RESOURCES GROUP INCListing on record	Jun 1, 2023	Award	19,064	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Jun 1, 2023	Award	13,771	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Feb 21, 2023	Award	16,581	31.16 USD	$516.7K		SEC
MDU RESOURCES GROUP INCListing on record	Feb 21, 2023	Other	-6,486	31.16 USD	$202.1K		SEC
MDU RESOURCES GROUP INCListing on record	Feb 21, 2023	Award	31,574	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Feb 28, 2022	Award	6,750	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Feb 28, 2022	Award	6,957	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Feb 22, 2022	Award	26,795	27.73 USD	$743K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Feb 22, 2022	Other	-10,652	27.73 USD	$295.4K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Feb 16, 2021	Award	23,980	27.35 USD	$655.9K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Feb 16, 2021	Other	-9,551	27.35 USD	$261.2K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Nov 12, 2020	Buy	600	24.93 USD	$15K	conv 29	SEC
MDU RESOURCES GROUP INCListing on record	Nov 12, 2020	Buy	400	24.93 USD	$10K	conv 28	SEC
MDU RESOURCES GROUP INCListing on record	May 14, 2020	Buy	1,000	19.62 USD	$19.6K	conv 61Cluster	SEC
MDU RESOURCES GROUP INCListing on record	Mar 10, 2020	Buy	200	27.32 USD	$5.5K	conv 45First in 12mo	SEC
MDU RESOURCES GROUP INCListing on record	Mar 10, 2020	Buy	1,000	27.31 USD	$27.3K	conv 50First in 12mo	SEC
MDU RESOURCES GROUP INCListing on record	Feb 18, 2020	Award	899	31.63 USD	$28.4K		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
MDU RESOURCES GROUP INCListing on record	Feb 19, 2026	Other	-36,766	20.36 USD	$748.6K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Feb 19, 2026	Award	15,229	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Sep 9, 2025	Buy	5,000	16.08 USD	$80.4K	conv 50	SEC
MDU RESOURCES GROUP INCListing on record	Aug 19, 2025	Buy	5,000	16.28 USD	$81.4K	conv 69Unusual sizeFirst in 12mo	SEC
MDU RESOURCES GROUP INCListing on record	Feb 14, 2025	Award	16,700	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Feb 14, 2025	Other	-30,429	16.83 USD	$512.1K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Feb 16, 2024	Award	56,459	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Feb 16, 2024	Other	-12,067	20.85 USD	$251.6K		SEC
MDU RESOURCES GROUP INCListing on record	Jun 1, 2023	Award	19,064	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Jun 1, 2023	Award	13,771	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Feb 21, 2023	Award	16,581	31.16 USD	$516.7K		SEC
MDU RESOURCES GROUP INCListing on record	Feb 21, 2023	Other	-6,486	31.16 USD	$202.1K		SEC
MDU RESOURCES GROUP INCListing on record	Feb 21, 2023	Award	31,574	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Feb 28, 2022	Award	6,750	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Feb 28, 2022	Award	6,957	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
MDU RESOURCES GROUP INCListing on record	Feb 22, 2022	Award	26,795	27.73 USD	$743K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Feb 22, 2022	Other	-10,652	27.73 USD	$295.4K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Feb 16, 2021	Award	23,980	27.35 USD	$655.9K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Feb 16, 2021	Other	-9,551	27.35 USD	$261.2K	Unusual size	SEC
MDU RESOURCES GROUP INCListing on record	Nov 12, 2020	Buy	600	24.93 USD	$15K	conv 29	SEC
MDU RESOURCES GROUP INCListing on record	Nov 12, 2020	Buy	400	24.93 USD	$10K	conv 28	SEC
MDU RESOURCES GROUP INCListing on record	May 14, 2020	Buy	1,000	19.62 USD	$19.6K	conv 61Cluster	SEC
MDU RESOURCES GROUP INCListing on record	Mar 10, 2020	Buy	200	27.32 USD	$5.5K	conv 45First in 12mo	SEC
MDU RESOURCES GROUP INCListing on record	Mar 10, 2020	Buy	1,000	27.31 USD	$27.3K	conv 50First in 12mo	SEC
MDU RESOURCES GROUP INCListing on record	Feb 18, 2020	Award	899	31.63 USD	$28.4K		SEC