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person · Reporting owner

Vollmer Jason L

Disclosed activity across 3 companies

Tapewire entity
65812
SEC CIK
0001626019

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Everus Construction Group, Inc.ECG · Entity 3815Director · TreasurerOctober 17, 2024October 17, 2024
Knife River CorpKNF · Entity 4128DirectorMay 10, 2023May 10, 2023
MDU RESOURCES GROUP INCMDU · Entity 4030CFOFebruary 17, 2026February 19, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Everus Construction Group, Inc.

Report date October 17, 2024 · Filed October 17, 2024

This filing explicitly reported no securities owned.

Knife River Corp

Report date May 10, 2023 · Filed May 10, 2023

This filing explicitly reported no securities owned.

MDU RESOURCES GROUP INC

Report date February 17, 2026 · Filed February 19, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect324,976.397 Last balance in matching sequence After 2026-02-18 transaction · row 2 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 1 · 2026-02-17 · Grant · Acquired 15,229 · Balance 361,742.397

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.

Row 2 · 2026-02-18 · Tax withholding · Disposed 36,766 · Balance 324,976.397

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.

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.

Common Stock - 401(k)SEC Table I · non-derivativeIndirectBy Trustee8,553.9568 Reported balance Holding disclosure · report date 2026-02-17 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 8,553.9568

Filing footnotes · ownership attribution and instrument terms

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.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
February 18, 2026 Filed Feb 19, 2026 23:22 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 Tax withholdingCommon Stock 36,766 $20.36 $748,555.76
Disclosure

SEC source: 0001225208-26-002189 · doc4.xml · nonDerivative · entry 2

Vollmer Jason L · CIK 0001626019 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 324,976.397

F3 · kind: 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: Price is equal to the closing price of a share of Common Stock on February 18, 2026.

F2 · balance_after: 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.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 23:22 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 15,229 $0.00 $0.00
Disclosure

SEC source: 0001225208-26-002189 · doc4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 361,742.397

F1 · kind: 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 · balance_after: 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.

Read SEC document
September 08, 2025 Filed Sep 9, 2025 21:39 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 PurchaseCommon Stock 5,000 $16.08 $80,375.00
Disclosure

SEC source: 0001225208-25-007846 · doc4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 344,548.197

F1 · kind: Mr. Vollmer purchased these shares in an open market transaction.

Read SEC document
August 19, 2025 Filed Aug 19, 2025 20:35 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 PurchaseCommon Stock 5,000 $16.28 $81,375.00
Disclosure

SEC source: 0001225208-25-007348 · doc4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 339,548.197

F1 · kind: Mr. Vollmer purchased these shares in an open market transaction.

Read SEC document
February 12, 2025 Filed Feb 14, 2025 21:50 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 Tax withholdingCommon Stock 30,429 $16.83 $512,120.07
Disclosure

SEC source: 0001225208-25-001760 · doc4.xml · nonDerivative · entry 2

Vollmer Jason L · CIK 0001626019 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 332,689.327

F3 · kind: Shares withheld in payment of tax liability in connection with the vesting of a previously reported award of RSUs, which vested December 31, 2024.

F4 · price: Price is equal to the closing price of a share of the Company's Common Stock on February 12, 2025.

F2 · balance_after: Includes (a) common stock, including 43,263 net shares received on vesting of award on December 31, 2024; (b) RSUs that were adjusted from certain previously-reported grants of RSUs in connection with the completion of the separation and distribution of Everus Construction Group, Inc., the issuer's former construction services business, to the issuer's stockholders, on October 31, 2024; and (c) shares of common stock acquired through dividend reinvestment since the reporting person's most recent Form 4.

Read SEC document
February 12, 2025 Filed Feb 14, 2025 21:50 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 16,700 $0.00 $0.00
Disclosure

SEC source: 0001225208-25-001760 · doc4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 363,118.327

F1 · kind: Represents restricted stock units (RSUs) that will vest on December 31, 2027, subject to the reporting person's continued employment through the vesting date.

F2 · balance_after: Includes (a) common stock, including 43,263 net shares received on vesting of award on December 31, 2024; (b) RSUs that were adjusted from certain previously-reported grants of RSUs in connection with the completion of the separation and distribution of Everus Construction Group, Inc., the issuer's former construction services business, to the issuer's stockholders, on October 31, 2024; and (c) shares of common stock acquired through dividend reinvestment since the reporting person's most recent Form 4.

Read SEC document
February 15, 2024 Filed Feb 16, 2024 22:20 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 Tax withholdingCommon Stock 12,067 $20.85 $251,596.95
Disclosure

SEC source: 0001225208-24-002332 · doc4.xml · nonDerivative · entry 2

Vollmer Jason L · CIK 0001626019 · VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 215,614.211

F2 · shares: Represents shares withheld by the issuer to cover tax withholding obligations upon vesting of a restricted stock unit award.

Read SEC document
February 15, 2024 Filed Feb 16, 2024 22:20 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 56,459 $0.00 $0.00
Disclosure

SEC source: 0001225208-24-002332 · doc4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 227,681.211

F1 · shares: Represents restricted stock units that vest on December 31, 2026, provided that the reporting person remains employed by the issuer as of the vesting date. Each restricted stock unit represents the contingent right to receive one share of the issuer's common stock.

Read SEC document
May 31, 2023 Filed Jun 1, 2023 17:19 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 13,771 $0.00 $0.00
Disclosure

SEC source: 0001225208-23-006391 · doc4.xml · nonDerivative · entry 2

Vollmer Jason L · CIK 0001626019 · VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,260.965

F2 · shares: Represents RSUs that vest on December 31, 2023, provided that the reporting person remains employed by the issuer as of the vesting date. Each RSU represents the contingent right to receive one share of the issuer's common stock. On May 31, 2023, such RSUs were converted from a previously granted performance-based share award in connection with the Spin-Off.

Read SEC document
May 31, 2023 Filed Jun 1, 2023 17:19 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 19,064 $0.00 $0.00
Disclosure

SEC source: 0001225208-23-006391 · doc4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,489.965

F1 · shares: Represents restricted stock units (RSUs) that vest on December 31, 2024, provided that the reporting person remains employed by the issuer as of the vesting date. Each RSU represents the contingent right to receive one share of the issuer's common stock. On May 31, 2023, such RSUs were converted from a previously granted performance-based share award in connection with the issuer's distribution to its shareholders of approximately 90% of the outstanding shares of its wholly owned subsidiary, Knife River Corporation (formerly known as Knife River Holding Company), on May 31, 2023 (the "Spin-off").

Read SEC document
February 16, 2023 Filed Feb 21, 2023 21:45 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 Tax withholdingCommon Stock 6,486 $31.16 $202,103.76
Disclosure

SEC source: 0001225208-23-002419 · doc4.xml · nonDerivative · entry 3

Vollmer Jason L · CIK 0001626019 · VP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,032.31

Read SEC document
February 16, 2023 Filed Feb 21, 2023 21:45 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 16,581 $31.16 $516,663.96
Disclosure

SEC source: 0001225208-23-002419 · doc4.xml · nonDerivative · entry 2

Vollmer Jason L · CIK 0001626019 · VP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 105,518.31

Read SEC document
February 16, 2023 Filed Feb 21, 2023 21:45 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 31,574 $0.00 $0.00
Disclosure

SEC source: 0001225208-23-002419 · doc4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · VP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,937.31

F1 · shares: Represents restricted stock units that vest on December 31, 2025, provided that the reporting person remains employed by the issuer as of the vesting date. Each restricted stock unit represents the contingent right to receive one share of the issuer's common stock.

Read SEC document
February 17, 2022 Filed Feb 22, 2022 22:17 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 Tax withholdingCommon Stock 10,652 $27.73 $295,379.96
Disclosure

SEC source: 0001225208-22-002966 · doc4.xml · nonDerivative · entry 2

Vollmer Jason L · CIK 0001626019 · VP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,310.59

Read SEC document
February 17, 2022 Filed Feb 22, 2022 22:17 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 26,795 $27.73 $743,025.35
Disclosure

SEC source: 0001225208-22-002966 · doc4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · VP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,962.59

Read SEC document
February 17, 2022 Filed Feb 28, 2022 21:49 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 6,957 $0.00 $0.00
Disclosure

SEC source: 0001225208-22-003554 · doc4.xml · nonDerivative · entry 2

Vollmer Jason L · CIK 0001626019 · VP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,017.59

F2 · shares: Represents restricted stock units that vest on December 31, 2024, provided that the reporting person remains employed by the issuer as of the vesting date. Each restricted stock unit represents the contingent right to receive one share of the issuer's common stock.

Read SEC document
February 11, 2021 Filed Feb 16, 2021 22:48 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 Tax withholdingCommon Stock 9,551 $27.35 $261,219.85
Disclosure

SEC source: 0001225208-21-002549 · doc4.xml · nonDerivative · entry 2

Vollmer Jason L · CIK 0001626019 · VP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,456.706

Read SEC document
February 11, 2021 Filed Feb 16, 2021 22:48 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 23,980 $27.35 $655,853.00
Disclosure

SEC source: 0001225208-21-002549 · doc4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · VP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,007.706

Read SEC document
February 11, 2021 Filed Feb 28, 2022 21:49 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 6,750 $0.00 $0.00
Disclosure

SEC source: 0001225208-22-003554 · doc4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · VP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,060.59

F1 · shares: Represents restricted stock units that vest on December 31, 2023, provided that the reporting person remains employed by the issuer as of the vesting date. Each restricted stock unit represents the contingent right to receive one share of the issuer's common stock.

Read SEC document
November 11, 2020 Filed Nov 12, 2020 20:03 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 PurchaseCommon Stock 400 $24.93 $9,970.40
Disclosure

SEC source: 0001225208-20-013419 · doc4.xml · nonDerivative · entry 2

Vollmer Jason L · CIK 0001626019 · VP, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,938.12

Read SEC document
November 11, 2020 Filed Nov 12, 2020 20:03 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 PurchaseCommon Stock 600 $24.93 $14,955.00
Disclosure

SEC source: 0001225208-20-013419 · doc4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · VP, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,538.12

Read SEC document
May 13, 2020 Filed May 14, 2020 15:25 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 PurchaseCommon Stock 1,000 $19.62 $19,615.00
Disclosure

SEC source: 0001225208-20-007635 · doc4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · VP, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,753.511

Read SEC document
March 09, 2020 Filed Mar 10, 2020 15:30 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 PurchaseCommon Stock 200 $27.32 $5,463.00
Disclosure

SEC source: 0001225208-20-004693 · doc4.xml · nonDerivative · entry 2

Vollmer Jason L · CIK 0001626019 · VP, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,668.834

Read SEC document
March 09, 2020 Filed Mar 10, 2020 15:30 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 PurchaseCommon Stock 1,000 $27.31 $27,310.00
Disclosure

SEC source: 0001225208-20-004693 · doc4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · VP, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,468.834

Read SEC document
February 13, 2020 Filed Feb 18, 2020 21:37 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 Tax withholdingCommon Stock 283 $31.63 $8,951.29
Disclosure

SEC source: 0001225208-20-002640 · doc4.xml · nonDerivative · entry 2

Vollmer Jason L · CIK 0001626019 · VP, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,468.834

Read SEC document
February 13, 2020 Filed Feb 18, 2020 21:37 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 899 $31.63 $28,435.37
Disclosure

SEC source: 0001225208-20-002640 · doc4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · VP, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,751.834

Read SEC document
February 14, 2019 Filed Feb 19, 2019 20:45 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 Tax withholdingCommon Stock 1,907 $26.25 $50,058.75
Disclosure

SEC source: 0001127602-19-006742 · form4.xml · nonDerivative · entry 2

Vollmer Jason L · CIK 0001626019 · VP, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,651

Read SEC document
February 14, 2019 Filed Feb 19, 2019 20:45 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 6,673 $0.00 $0.00
Disclosure

SEC source: 0001127602-19-006742 · form4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · VP, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,558

Read SEC document
February 16, 2018 Filed Feb 20, 2018 22:18 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 Tax withholdingCommon Stock 866 $27.48 $23,797.68
Disclosure

SEC source: 0001127602-18-007299 · form4.xml · nonDerivative · entry 2

Vollmer Jason L · CIK 0001626019 · VP, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,885

Read SEC document
February 16, 2018 Filed Feb 20, 2018 22:18 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 2,751 $0.00 $0.00
Disclosure

SEC source: 0001127602-18-007299 · form4.xml · nonDerivative · entry 1

Vollmer Jason L · CIK 0001626019 · VP, CFO & Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,751

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.