Comparable stake leader
John A. Weinzierl
SEC ownership of BIG SKY INDUSTRIAL INC.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000101594.
Disclosed value leader
John A. Weinzierl
Comparable rows
4/35
Latest evidence
30 Sep 2026
- Public ticker
- BSIN on Nasdaq
- Parsed ownership sources
-
3/4/5, 13D/G, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
John A. Weinzierl
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
4 of 35
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
John A. Weinzierl
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Sep 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000101594
- Issuer location
- Houston, TX
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of BIG SKY INDUSTRIAL INC. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
John A. Weinzierl
Disclosed value leader
John A. Weinzierl
Comparable rows
4/35
Latest evidence
30 Sep 2026
3/4/5
13D/G
13F
Lead comparable stake: 19%
31 rows are not safely comparable across share classes.
13D/G row: John A. Weinzierl
Showing 1-8 of 35 holder rows.
Quick read
John A. Weinzierl leads the comparable SEC ownership view at 19%.
4 of 35 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens John A. Weinzierl's linked filing trail.
Comparable ownership
Top 4
John A. Weinzierl
19%
Synergy Offshore LLC
12%
Duane H. King
7.2%
Joshua L. Batchelor
4.9%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 35 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| John A. Weinzierl |
3/4/5
13D/G
Director, Member of 10% owner group, 10%+ Owner · Weinzierl John A
|
19%
Reported 13D/G
· 29 Apr 2026
|
$7,758,169
9,235,219 shares
mixed-class rows
|
— | 29 Apr 2026 |
| Synergy Offshore LLC |
13D/G
King Duane H
|
12%
Reported 13D/G
· 09 Jan 2025
|
$4,005,469
3,576,312 shares
|
$0 | 09 Jan 2025 |
| Duane H. King |
13D/G
3/4/5
King Duane H · Director, Member of 10% owner group
|
7.2%
Reported 13D/G
· 28 Oct 2025
|
$3,011,984
2,548,641 shares
|
$0 | 28 Oct 2025 |
| Joshua L. Batchelor |
13D/G
3/4/5
Batchelor Joshua Lane · Member of 10% owner group, 10%+ Owner
|
4.9%
Reported 13D/G
· 11 Aug 2026
|
$2,890,441
2,580,751 shares
|
-$4,058,195 | 11 Aug 2026 |
| John Alfred Weinzierl 2020 Trust u/a November 10, 2020 |
3/4/5
Member of 10% owner group, 10%+ Owner
|
—
denominator unverified
|
$7,758,169
8,775,219 shares
|
— | 29 Apr 2026 |
| Katla Energy Holdings LLC |
3/4/5
Member of 10% owner group, 10%+ Owner
|
—
denominator unverified
|
$7,758,169
8,775,219 shares
|
— | 29 Apr 2026 |
| Marsh Wallis T. |
3/4/5
10%+ Owner
|
—
denominator unverified
|
$2,812,404
3,124,893 shares
|
— | 10 Oct 2022 |
| WDM Family Partnership, LP |
3/4/5
10%+ Owner
|
—
denominator unverified
|
$2,764,723
3,071,914 shares
|
— | 19 Jul 2022 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$894,037.
Buys
$13,050
Insiders: 1
Sells
$907,087
Insiders: 1
Net
-$894,037
Shares: -685,000
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 15,000
Shares: 700,000
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 15,000 | 700,000 | $13,050 | $907,087 | -$894,037 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-15 of 15 reporting-owner rows connected to BIG SKY INDUSTRIAL INC.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
15
Largest Forms 3/4/5 holder
John Alfred Weinzierl 2020 Trust u/a November 10, 2020
Net 12M change
-$894.04K
Full value: -$894,037 · USD · 12-month changeLatest report
08 May 2026
Recent insider transactions for BIG SKY INDUSTRIAL INC.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Weinzierl John A | USEG | Common Stock | Other | 909,000 | 909,000 | 29 Apr 2026 | By trust for which spouse serves as trustee. | |||
| Weinzierl John A | USEG | Common Stock | Other | 909,000 | 909,000 | 29 Apr 2026 | By trust for which spouse serves as trustee. | |||
| John A. Weinzierl | USEG | Common Stock | Other | 909,000 | 909,000 | 29 Apr 2026 | By trust for which spouse serves as trustee. | |||
| Weinzierl John A | USEG | Common Stock | Other | 29.1% | 909,000 | 4,033,893 | 29 Apr 2026 | By John Alfred Weinzierl 2020 Trust, u/t/a November 10, 2020 | ||
| Weinzierl John A | USEG | Common Stock | Other | 29.1% | 909,000 | 4,033,893 | 29 Apr 2026 | By John Alfred Weinzierl 2020 Trust, u/t/a November 10, 2020 | ||
| John A. Weinzierl | USEG | Common Stock | Other | 29.1% | 909,000 | 4,033,893 | 29 Apr 2026 | By John Alfred Weinzierl 2020 Trust, u/t/a November 10, 2020 | ||
| Weinzierl John A | USEG | Common Stock | Other | -32.2% | -1,818,000 | 3,832,326 | 29 Apr 2026 | Direct | ||
| Weinzierl John A | USEG | Common Stock | Other | -32.2% | -1,818,000 | 3,832,326 | 29 Apr 2026 | Direct | ||
| John A. Weinzierl | USEG | Common Stock | Other | -32.2% | -1,818,000 | 3,832,326 | 29 Apr 2026 | Direct | ||
| Ryan L. Smith | USEG | Common Stock | Purchase | 1.36% | $13,050 | $0.8700 | 15,000 | 1,118,769 | 31 Mar 2026 | Direct |
| Mark L. Zajac | USEG | Common Stock | Tax liability | -7.3% | -21,853 | 277,593 | 19 Mar 2026 | Direct | ||
| Ryan L. Smith | USEG | Common Stock | Tax liability | -1.71% | -19,177 | 1,103,769 | 19 Mar 2026 | Direct | ||
| Duane H. King | USEG | Non-Qualified Stock Option (right to buy) | Award | 230,000 | 230,000 | 04 Mar 2026 | Direct | |||
| Mark L. Zajac | USEG | Stock Option (right to buy) | Award | 375,000 | 375,000 | 04 Mar 2026 | Direct | |||
| John A. Weinzierl | USEG | Non-Qualified Stock Option (right to buy) | Award | 460,000 | 460,000 | 04 Mar 2026 | Direct | |||
| Ryan L. Smith | USEG | Non-Qualified Stock Option (right to buy) | Award | 1,500,000 | 1,500,000 | 04 Mar 2026 | Direct | |||
| Stephen Slack | USEG | Non-Qualified Stock Option (right to buy) | Award | 230,000 | 230,000 | 04 Mar 2026 | Direct | |||
| Randall D. Keys | USEG | Non-Qualified Stock Option (right to buy) | Award | 230,000 | 230,000 | 04 Mar 2026 | Direct | |||
| James W. Denny III | USEG | Non-Qualified Stock Option (right to buy) | Award | 230,000 | 230,000 | 04 Mar 2026 | Direct | |||
| Joshua L. Batchelor | USEG | Common Stock | Sale | -77.2% | -$363,071 | $1.37 | -265,170 | 78,299 | 03 Mar 2026 | Direct |
| Joshua L. Batchelor | USEG | Common Stock | Sale | -83.7% | -$544,016 | $1.25 | -434,830 | 84,663 | 02 Mar 2026 | Direct |
| Mark L. Zajac | USEG | Common Stock | Tax liability | -6.4% | -20,490 | 299,446 | 13 Feb 2026 | Direct | ||
| Ryan L. Smith | USEG | Common Stock | Tax liability | -3.38% | -39,259 | 1,122,946 | 13 Feb 2026 | Direct | ||
| Ryan L. Smith | USEG | Common Stock | Tax liability | -1.76% | -20,834 | 1,162,205 | 05 Jan 2026 | Direct |
* marks a reported price that did not pass the local price check.