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John Alfred Weinzierl 2020 Trust u/a November 10, 2020

Disclosed activity across 1 company

Tapewire entity
50463
SEC CIK
0002018711

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
BIG SKY INDUSTRIAL INC.USEG · Entity 692210% owner · Member of 10% owner groupApril 29, 2026May 01, 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.

BIG SKY INDUSTRIAL INC.

Report date April 29, 2026 · Filed May 01, 2026

Jointly reported with Weinzierl John A, Katla Energy Holdings LLC

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect3,832,326 Reported balance After 2026-04-29 transaction · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · 2026-04-29 · Other · Disposed 1,818,000 · Balance 3,832,326

F5: Distribution of shares by Katla to Mr. Weinzierl and spouse.

F1: Excludes shares of Common Stock relating to the voting group described below under "Remarks". Represents shares of common stock, $0.01 par value per share of the Issuer ("Common Stock"), held by Mr. Weinzierl directly. This Form 4 is filed jointly by John A. Weinzierl and Katla. Mr. Weinzierl is the 100% owner of all of the equity of Katla. Mr. Weinzierl is also the Chairman of U.S. Energy Corp. and is the Trustee of the Trust (defined below). Mr. Weinzierl disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein.

F2: Excludes shares of Common Stock relating to the voting group described below under "Remarks". Represents shares of Common Stock held directly by Katla Energy Holdings LLC ("Katla"). The shares held by Katla may be deemed to be beneficially owned by Mr. Weinzierl due to his ownership of 100% of Katla and his position as Managing Member of Katla.

Common StockSEC Table I · non-derivativeDirect497,826 Reported balance Holding disclosure · report date 2026-04-29 · row 1 Holding and transaction disclosures are not merged.
1 source row

Row 1 · Balance 497,826

F1: Excludes shares of Common Stock relating to the voting group described below under "Remarks". Represents shares of common stock, $0.01 par value per share of the Issuer ("Common Stock"), held by Mr. Weinzierl directly. This Form 4 is filed jointly by John A. Weinzierl and Katla. Mr. Weinzierl is the 100% owner of all of the equity of Katla. Mr. Weinzierl is also the Chairman of U.S. Energy Corp. and is the Trustee of the Trust (defined below). Mr. Weinzierl disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein.

Common StockSEC Table I · non-derivativeIndirectBy John Alfred Weinzierl 2020 Trust, u/t/a November 10, 20204,033,893 Reported balance After 2026-04-29 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 3 · 2026-04-29 · Other · Acquired 909,000 · Balance 4,033,893

F6: Gifts by Mr. Weinzierl and spouse to trusts.

F3: Excludes shares of Common Stock relating to the voting group described below under "Remarks". Represents shares of Common Stock held by John Alfred Weinzierl 2020 Trust, u/t/a November 10, 2020 (the "Trust"). The shares held by the Trust may be deemed to be beneficially owned by Mr. Weinzierl due to his position as Trustee of the Trust.

F4: Mr. Weinzierl disclaims beneficial ownership other than to the extent of his pecuniary interest therein.

Common StockSEC Table I · non-derivativeIndirectBy trust for which spouse serves as trustee.909,000 Reported balance After 2026-04-29 transaction · row 4 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 4 · 2026-04-29 · Other · Acquired 909,000 · Balance 909,000

F6: Gifts by Mr. Weinzierl and spouse to trusts.

F4: Mr. Weinzierl disclaims beneficial ownership other than to the extent of his pecuniary interest therein.

Filing footnotes · ownership attribution and instrument terms

F1: Excludes shares of Common Stock relating to the voting group described below under "Remarks". Represents shares of common stock, $0.01 par value per share of the Issuer ("Common Stock"), held by Mr. Weinzierl directly. This Form 4 is filed jointly by John A. Weinzierl and Katla. Mr. Weinzierl is the 100% owner of all of the equity of Katla. Mr. Weinzierl is also the Chairman of U.S. Energy Corp. and is the Trustee of the Trust (defined below). Mr. Weinzierl disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein.

F2: Excludes shares of Common Stock relating to the voting group described below under "Remarks". Represents shares of Common Stock held directly by Katla Energy Holdings LLC ("Katla"). The shares held by Katla may be deemed to be beneficially owned by Mr. Weinzierl due to his ownership of 100% of Katla and his position as Managing Member of Katla.

F3: Excludes shares of Common Stock relating to the voting group described below under "Remarks". Represents shares of Common Stock held by John Alfred Weinzierl 2020 Trust, u/t/a November 10, 2020 (the "Trust"). The shares held by the Trust may be deemed to be beneficially owned by Mr. Weinzierl due to his position as Trustee of the Trust.

F4: Mr. Weinzierl disclaims beneficial ownership other than to the extent of his pecuniary interest therein.

F5: Distribution of shares by Katla to Mr. Weinzierl and spouse.

F6: Gifts by Mr. Weinzierl and spouse to trusts.

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
April 29, 2026 Filed May 1, 2026 21:53 UTC BIG SKY INDUSTRIAL INC. USEG · Entity 6922 OtherCommon Stock 909,000 $1.10 $999,900.00
Disclosure

SEC source: 0001437749-26-014518 · rdgdoc.xml · nonDerivative · entry 4

Weinzierl John A · CIK 0001377295 · Director · 10% owner · Member of 10% owner group

John Alfred Weinzierl 2020 Trust u/a November 10, 2020 · CIK 0002018711 · 10% owner · Member of 10% owner group

Katla Energy Holdings LLC · CIK 0001940541 · 10% owner · Member of 10% owner group

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By trust for which spouse serves as trustee.

Disclosed balance after: 909,000

F6 · kind: Gifts by Mr. Weinzierl and spouse to trusts.

F4 · ownership.nature: Mr. Weinzierl disclaims beneficial ownership other than to the extent of his pecuniary interest therein.

Read SEC document
April 29, 2026 Filed May 1, 2026 21:53 UTC BIG SKY INDUSTRIAL INC. USEG · Entity 6922 OtherCommon Stock 909,000 $1.10 $999,900.00
Disclosure

SEC source: 0001437749-26-014518 · rdgdoc.xml · nonDerivative · entry 3

Weinzierl John A · CIK 0001377295 · Director · 10% owner · Member of 10% owner group

John Alfred Weinzierl 2020 Trust u/a November 10, 2020 · CIK 0002018711 · 10% owner · Member of 10% owner group

Katla Energy Holdings LLC · CIK 0001940541 · 10% owner · Member of 10% owner group

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By John Alfred Weinzierl 2020 Trust, u/t/a November 10, 2020

Disclosed balance after: 4,033,893

F6 · kind: Gifts by Mr. Weinzierl and spouse to trusts.

F3 · ownership.nature: Excludes shares of Common Stock relating to the voting group described below under "Remarks". Represents shares of Common Stock held by John Alfred Weinzierl 2020 Trust, u/t/a November 10, 2020 (the "Trust"). The shares held by the Trust may be deemed to be beneficially owned by Mr. Weinzierl due to his position as Trustee of the Trust.

F4 · ownership.nature: Mr. Weinzierl disclaims beneficial ownership other than to the extent of his pecuniary interest therein.

Read SEC document
April 29, 2026 Filed May 1, 2026 21:53 UTC BIG SKY INDUSTRIAL INC. USEG · Entity 6922 OtherCommon Stock 1,818,000 $1.10 $1,999,800.00
Disclosure

SEC source: 0001437749-26-014518 · rdgdoc.xml · nonDerivative · entry 2

Weinzierl John A · CIK 0001377295 · Director · 10% owner · Member of 10% owner group

John Alfred Weinzierl 2020 Trust u/a November 10, 2020 · CIK 0002018711 · 10% owner · Member of 10% owner group

Katla Energy Holdings LLC · CIK 0001940541 · 10% owner · Member of 10% owner group

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,832,326

F5 · kind: Distribution of shares by Katla to Mr. Weinzierl and spouse.

F1 · balance_after: Excludes shares of Common Stock relating to the voting group described below under "Remarks". Represents shares of common stock, $0.01 par value per share of the Issuer ("Common Stock"), held by Mr. Weinzierl directly. This Form 4 is filed jointly by John A. Weinzierl and Katla. Mr. Weinzierl is the 100% owner of all of the equity of Katla. Mr. Weinzierl is also the Chairman of U.S. Energy Corp. and is the Trustee of the Trust (defined below). Mr. Weinzierl disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein.

F2 · balance_after: Excludes shares of Common Stock relating to the voting group described below under "Remarks". Represents shares of Common Stock held directly by Katla Energy Holdings LLC ("Katla"). The shares held by Katla may be deemed to be beneficially owned by Mr. Weinzierl due to his ownership of 100% of Katla and his position as Managing Member of Katla.

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March 04, 2026 Filed Mar 6, 2026 22:34 UTC BIG SKY INDUSTRIAL INC. USEG · Entity 6922 GrantNon-Qualified Stock Option (right to buy) · Derivative 460,000 $0.00 Strike: $1.11 $0.00
Disclosure

SEC source: 0001437749-26-007246 · rdgdoc.xml · derivative · entry 4

Weinzierl John A · CIK 0001377295 · Director · 10% owner · Member of 10% owner group

John Alfred Weinzierl 2020 Trust u/a November 10, 2020 · CIK 0002018711 · 10% owner · Member of 10% owner group

Katla Energy Holdings LLC · CIK 0001940541 · 10% owner · Member of 10% owner group

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 460,000

Underlying: Common Stock · 460,000 shares

Expires 2036-03-04

F6 · price: Issued to the Reporting Person in consideration for services rendered and agreed to be rendered to the Issuer as a Director of the Issuer.

F5 · derivative.exercise_date: Nonqualified Stock Options granted on March 4, 2026 pursuant to the U.S. Energy Corp. 2022 Equity Incentive Plan. The options vest in two equal annual installments of 50% each: 230,000 options on July 1, 2026 and 230,000 options on January 2, 2027, subject to the Reporting Person's continued service with the Issuer on such vesting dates. therein.

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October 28, 2025 Filed Oct 30, 2025 22:16 UTC BIG SKY INDUSTRIAL INC. USEG · Entity 6922 OtherCommon Stock 1,400,000 $0.00 $0.00
Disclosure

SEC source: 0001437749-25-032464 · rdgdoc.xml · nonDerivative · entry 4

Weinzierl John A · CIK 0001377295 · Director · 10% owner · Member of 10% owner group

John Alfred Weinzierl 2020 Trust u/a November 10, 2020 · CIK 0002018711 · 10% owner · Member of 10% owner group

Katla Energy Holdings LLC · CIK 0001940541 · 10% owner · Member of 10% owner group

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Synergy Offshore LLC

Disclosed balance after: 0

F6 · kind: On October 28, 2025, Synergy distributed all of the 1,400,000 shares of Common Stock owned by it to SPP, and SPP distributed all of such shares to its members, including 796,761 shares to Katla. Such shares were distributed without payment of any additional consideration.

F6 · price: On October 28, 2025, Synergy distributed all of the 1,400,000 shares of Common Stock owned by it to SPP, and SPP distributed all of such shares to its members, including 796,761 shares to Katla. Such shares were distributed without payment of any additional consideration.

F5 · ownership.nature: Shares previously owned directly by Synergy Offshore LLC ("Synergy"). Katla is an owner of member interests in Synergy Producing Properties, LLC ("SPP"), which is the 100% owner of Synergy. Mr. Weinzierl and Katla may be deemed to beneficially own the shares of Common Stock owned by Synergy based on certain member rights in SPP. Mr. Weinzierl and Katla disclaim beneficial ownership in such shares other than to the extent of their pecuniary interest therein.

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October 28, 2025 Filed Oct 30, 2025 22:16 UTC BIG SKY INDUSTRIAL INC. USEG · Entity 6922 OtherCommon Stock 796,761 $0.00 $0.00
Disclosure

SEC source: 0001437749-25-032464 · rdgdoc.xml · nonDerivative · entry 2

Weinzierl John A · CIK 0001377295 · Director · 10% owner · Member of 10% owner group

John Alfred Weinzierl 2020 Trust u/a November 10, 2020 · CIK 0002018711 · 10% owner · Member of 10% owner group

Katla Energy Holdings LLC · CIK 0001940541 · 10% owner · Member of 10% owner group

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,650,326

F6 · kind: On October 28, 2025, Synergy distributed all of the 1,400,000 shares of Common Stock owned by it to SPP, and SPP distributed all of such shares to its members, including 796,761 shares to Katla. Such shares were distributed without payment of any additional consideration.

F6 · price: On October 28, 2025, Synergy distributed all of the 1,400,000 shares of Common Stock owned by it to SPP, and SPP distributed all of such shares to its members, including 796,761 shares to Katla. Such shares were distributed without payment of any additional consideration.

F2 · ownership.direct: Excludes shares of Common Stock relating to the voting group described below under "Remarks". Represents shares of Common Stock held directly by Katla Energy Holdings LLC ("Katla"). The shares held by Katla may be deemed to be beneficially owned by Mr. Weinzierl due to his ownership of 100% of Katla and his position as Managing Member of Katla.

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February 14, 2025 Filed Feb 14, 2025 21:20 UTC BIG SKY INDUSTRIAL INC. USEG · Entity 6922 GrantCommon Stock 80,000 $0.00 $0.00
Disclosure

SEC source: 0001437749-25-004005 · rdgdoc.xml · nonDerivative · entry 1

Weinzierl John A · CIK 0001377295 · Director · 10% owner · Member of 10% owner group

John Alfred Weinzierl 2020 Trust u/a November 10, 2020 · CIK 0002018711 · 10% owner · Member of 10% owner group

Katla Energy Holdings LLC · CIK 0001940541 · 10% owner · Member of 10% owner group

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 497,826

F1 · kind: Grant of restricted stock subject to time-based vesting 50% on July 1, 2025 and 50% on January 1, 2026, subject to the recipient's continued service to the Issuer. Exempt pursuant to Rule 16b-3.

F1 · shares: Grant of restricted stock subject to time-based vesting 50% on July 1, 2025 and 50% on January 1, 2026, subject to the recipient's continued service to the Issuer. Exempt pursuant to Rule 16b-3.

F2 · price: Issued to the Reporting Person in consideration for services rendered and agreed to be rendered to the Issuer as the Chairman of the Board of Directors of the Issuer.

F3 · ownership.direct: Excludes shares of common stock relating to the voting group described below under "Remarks". Represents shares of common stock, $0.01 par value per share of the Issuer ("Common Stock"), held by Mr. Weinzierl directly. This Form 4 is filed jointly by John A. Weinzierl and Katla. Mr. Weinzierl is the 100% owner of all of the equity of Katla. Mr. Weinzierl is also the Chairman of U.S. Energy Corp. and is the Trustee of the Trust (defined below). Mr. Weinzierl disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein.

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January 09, 2025 Filed Jan 13, 2025 21:54 UTC BIG SKY INDUSTRIAL INC. USEG · Entity 6922 GrantCommon Stock 1,400,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001437749-25-000990 · rdgdoc.xml · nonDerivative · entry 4

Weinzierl John A · CIK 0001377295 · Director · 10% owner · Member of 10% owner group

John Alfred Weinzierl 2020 Trust u/a November 10, 2020 · CIK 0002018711 · 10% owner · Member of 10% owner group

Katla Energy Holdings LLC · CIK 0001940541 · 10% owner · Member of 10% owner group

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Synergy Offshore LLC

Disclosed balance after: 1,400,000

F6 · price: The shares were issued by the Issuer, and acquired by Synergy, as seller, pursuant to a Purchase and Sale Agreement (the "PSA") as partial consideration for the sale of assets by the seller. No fair market value has been determined or allocated at this time to the share consideration or other non-cash consideration issued under the PSA.

F4 · ownership.nature: Mr. Weinzierl disclaims beneficial ownership other than to the extent of his pecuniary interest therein.

F5 · ownership.nature: Shares are owned directly by Synergy Offshore LLC ("Synergy"). Katla is an owner of member interests in Synergy Producing Properties, LLC ("SPP"), which is the 100% owner of Synergy. Mr. Weinzierl and Katla may be deemed to beneficially own the shares of common stock owned by Synergy based on certain member rights in SPP. Mr. Weinzierl and Katla disclaim beneficial ownership in such shares other than to the extent of their pecuniary interest therein..

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