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Miller Tammy J

Disclosed activity across 2 companies

Tapewire entity
27544
SEC CIK
0002063881

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
MDU RESOURCES GROUP INCMDU · Entity 4030DirectorNovember 13, 2025November 14, 2025

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.

MDU RESOURCES GROUP INC

Report date November 13, 2025 · Filed November 14, 2025

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect6,031 Reported balance After 2025-11-13 transaction · row 1
1 source row

Row 1 · 2025-11-13 · Grant · Acquired 3,031 · Balance 6,031

Past disclosures · reporting ended (1)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

SkyWater Technology, LLC

Report date July 31, 2026 · Filed July 31, 2026

Section 16 reporting ended · disclosed 2026-07-31. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect0 Reported balance After 2026-07-31 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-07-31 · Disposition to issuer · Disposed 11,428 · Balance 0

F1: Represents shares of common stock of SkyWater Technology, Inc. ("SkyWater") disposed of pursuant to the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of January 25, 2026, by and among SkyWater, IonQ, Inc. ("IonQ"), Merger Subsidiary 1 Inc. ("Merger Subsidiary 1"), and Iris merger Subsidiary 2 LLC (now known as SkyWater Technology, LLC) ("Surviving Company"), including the merger of Iris Merger Subsidiary 1 with and into Surviving Company (the "Second Merger"). At the effective time of the First Merger (the "Effective Time"), each share of SkyWater common stock outstanding immediately prior to the Effective Time (subject to certain exceptions described in the Merger Agreement) automatically converted into the right to receive $15 in cash and 0.4883 shares of common stock of IonQ plus cash in lieu of any fractional shares.

Common StockSEC Table I · non-derivativeDirect0 Reported balance After 2026-07-31 transaction · row 2 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 2 · 2026-07-31 · Disposition to issuer · Disposed 4,304 · Balance 0

F2: Represents restricted stock units relating to shares of SkyWater common stock. Pursuant to the Merger Agreement, prior to the Effective Time, each award of restricted stock units relating to shares of SkyWater common stock held by a non-employee member of SkyWater's board of directors that was outstanding, whether vested or unvested, automatically became fully vested and settled in shares of SkyWater common stock. At the Effective Time, each share of SkyWater common stock automatically converted into the right to receive $15 in cash and 0.4883 shares of common stock of IonQ plus cash in lieu of any fractional shares.

Filing footnotes · ownership attribution and instrument terms

F1: Represents shares of common stock of SkyWater Technology, Inc. ("SkyWater") disposed of pursuant to the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of January 25, 2026, by and among SkyWater, IonQ, Inc. ("IonQ"), Merger Subsidiary 1 Inc. ("Merger Subsidiary 1"), and Iris merger Subsidiary 2 LLC (now known as SkyWater Technology, LLC) ("Surviving Company"), including the merger of Iris Merger Subsidiary 1 with and into Surviving Company (the "Second Merger"). At the effective time of the First Merger (the "Effective Time"), each share of SkyWater common stock outstanding immediately prior to the Effective Time (subject to certain exceptions described in the Merger Agreement) automatically converted into the right to receive $15 in cash and 0.4883 shares of common stock of IonQ plus cash in lieu of any fractional shares.

F2: Represents restricted stock units relating to shares of SkyWater common stock. Pursuant to the Merger Agreement, prior to the Effective Time, each award of restricted stock units relating to shares of SkyWater common stock held by a non-employee member of SkyWater's board of directors that was outstanding, whether vested or unvested, automatically became fully vested and settled in shares of SkyWater common stock. At the Effective Time, each share of SkyWater common stock automatically converted into the right to receive $15 in cash and 0.4883 shares of common stock of IonQ plus cash in lieu of any fractional shares.

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
July 31, 2026 Filed Jul 31, 2026 14:41 UTC SkyWater Technology, LLC SKYT · Entity 27424 Disposition to issuerCommon Stock 4,304 Not disclosed Not disclosed
Disclosure

SEC source: 0002063881-26-000004 · wk-form4_1785508883.xml · nonDerivative · entry 2

Miller Tammy J · CIK 0002063881 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F2 · security: Represents restricted stock units relating to shares of SkyWater common stock. Pursuant to the Merger Agreement, prior to the Effective Time, each award of restricted stock units relating to shares of SkyWater common stock held by a non-employee member of SkyWater's board of directors that was outstanding, whether vested or unvested, automatically became fully vested and settled in shares of SkyWater common stock. At the Effective Time, each share of SkyWater common stock automatically converted into the right to receive $15 in cash and 0.4883 shares of common stock of IonQ plus cash in lieu of any fractional shares.

F2 · price: Represents restricted stock units relating to shares of SkyWater common stock. Pursuant to the Merger Agreement, prior to the Effective Time, each award of restricted stock units relating to shares of SkyWater common stock held by a non-employee member of SkyWater's board of directors that was outstanding, whether vested or unvested, automatically became fully vested and settled in shares of SkyWater common stock. At the Effective Time, each share of SkyWater common stock automatically converted into the right to receive $15 in cash and 0.4883 shares of common stock of IonQ plus cash in lieu of any fractional shares.

Read SEC document
July 31, 2026 Filed Jul 31, 2026 14:41 UTC SkyWater Technology, LLC SKYT · Entity 27424 Disposition to issuerCommon Stock 11,428 Not disclosed Not disclosed
Disclosure

SEC source: 0002063881-26-000004 · wk-form4_1785508883.xml · nonDerivative · entry 1

Miller Tammy J · CIK 0002063881 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · security: Represents shares of common stock of SkyWater Technology, Inc. ("SkyWater") disposed of pursuant to the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of January 25, 2026, by and among SkyWater, IonQ, Inc. ("IonQ"), Merger Subsidiary 1 Inc. ("Merger Subsidiary 1"), and Iris merger Subsidiary 2 LLC (now known as SkyWater Technology, LLC) ("Surviving Company"), including the merger of Iris Merger Subsidiary 1 with and into Surviving Company (the "Second Merger"). At the effective time of the First Merger (the "Effective Time"), each share of SkyWater common stock outstanding immediately prior to the Effective Time (subject to certain exceptions described in the Merger Agreement) automatically converted into the right to receive $15 in cash and 0.4883 shares of common stock of IonQ plus cash in lieu of any fractional shares.

F1 · price: Represents shares of common stock of SkyWater Technology, Inc. ("SkyWater") disposed of pursuant to the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of January 25, 2026, by and among SkyWater, IonQ, Inc. ("IonQ"), Merger Subsidiary 1 Inc. ("Merger Subsidiary 1"), and Iris merger Subsidiary 2 LLC (now known as SkyWater Technology, LLC) ("Surviving Company"), including the merger of Iris Merger Subsidiary 1 with and into Surviving Company (the "Second Merger"). At the effective time of the First Merger (the "Effective Time"), each share of SkyWater common stock outstanding immediately prior to the Effective Time (subject to certain exceptions described in the Merger Agreement) automatically converted into the right to receive $15 in cash and 0.4883 shares of common stock of IonQ plus cash in lieu of any fractional shares.

Read SEC document
June 10, 2026 Filed Jun 12, 2026 21:12 UTC SkyWater Technology, LLC SKYT · Entity 27424 GrantCommon Stock 4,304 $0.00 $0.00
Disclosure

SEC source: 0002063881-26-000002 · wk-form4_1781298759.xml · nonDerivative · entry 1

Miller Tammy J · CIK 0002063881 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,732

F1 · kind: Represents a grant of restricted stock units ("RSUs"). The RSUs vest on the date immediately preceding the next occurring annual meeting of the Issuer's stockholders, contingent on the reporting person's continued service on such vesting date.

Read SEC document
November 13, 2025 Filed Nov 14, 2025 22:06 UTC MDU RESOURCES GROUP INC MDU · Entity 4030 GrantCommon Stock 3,031 $0.00 $0.00
Disclosure

SEC source: 0001225208-25-009222 · doc4.xml · nonDerivative · entry 1

Miller Tammy J · CIK 0002063881 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,031

Read SEC document
May 21, 2025 Filed May 23, 2025 15:44 UTC SkyWater Technology, LLC SKYT · Entity 27424 GrantCommon Stock 11,428 $8.75 $99,995.00
Disclosure

SEC source: 0002063881-25-000006 · wk-form4_1748015034.xml · nonDerivative · entry 1

Miller Tammy J · CIK 0002063881 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,428

F1 · kind: Represents a grant of restricted stock units ("RSUs"). The RSUs vest on the date immediately preceding the next occurring annual meeting of the Issuer's stockholders, contingent on the reporting person's continued service on such vesting date.

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.