Jason L. Vollmer - 17 Feb 2026 Form 4 Insider Report for MDU RESOURCES GROUP INC (MDU)

Role
CFO
Signature
Anthony D. Foti, Attorney-in-Fact for Jason L. Vollmer
Issuer symbol
MDU
Transactions as of
17 Feb 2026
Net transactions value
-$748,556
Form type
4
Filing time
19 Feb 2026, 18:22:34 UTC
Previous filing
09 Sep 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Vollmer Jason L CFO 1200 WEST CENTURY AVENUE, BISMARCK Anthony D. Foti, Attorney-in-Fact for Jason L. Vollmer 19 Feb 2026 0001626019

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MDU Common Stock Award $0 +15,229 +4.4% $0.000000 361,742 17 Feb 2026 Direct F1, F2
transaction MDU Common Stock Tax liability $748,556 -36,766 -10% $20.36 324,976 18 Feb 2026 Direct F2, F3, F4
holding MDU Common Stock - 401(k) 8,554 17 Feb 2026 By Trustee
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents restricted stock units (RSUs) that will vest on December 31, 2028, subject to the reporting person's continued employment through the vesting date.
F2 Includes (a) Common Stock, including 52,678 net shares, which vested on December 31, 2025; and (b) shares of Common Stock acquired through dividend reinvestment since the reporting person's most recent Form 4.
F3 Shares withheld in payment of tax liability in connection with the vesting of a previously reported award of RSUs, which vested December 31, 2025.
F4 Price is equal to the closing price of a share of Common Stock on February 18, 2026.