Lubar & Co., Inc holds a concentrated book of 3 reported positions worth $126.4M as of Q2 2026 (disclosed Jul 28, 2026, a ~28-day 13F lag). Their largest long position is Hallador Energy Co at 75% of the reported non-option book.
Top-heavy: concentrated book
Excluding Hallador Energy Co (75% of the book), the rest is a concentrated book:
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
100% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Other tracked managers holding the same core names as Lubar & Co., Inc
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| Hollencrest Capital Management | 2 / 3 | $68.2M |
| Round Rock Advisors LLC | 2 / 3 | $13.7M |
| Parsons Capital Management Inc | 2 / 3 | $27.6M |
| Hyperion Capital Advisors LP | 2 / 3 | $1.1M |
| Summit Trail Advisors, LLC | 2 / 3 | $30.6M |
| HM Payson & Co | 2 / 3 | $28.5M |
| Kilter Group LLC | 2 / 3 | $750K |
| Brown Advisory Inc | 2 / 3 | $142.4M |
Ranked by the share of each fund's own book sitting in the names it shares with Lubar & Co., Inc: only funds sharing at least a tenth of the book qualify. Index giants, bank custody books and market makers are excluded. They hold everything, so their overlap says nothing.
Bars show each position's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Hallador Energy Company COM | $94.8M | 5.45M | 75.0% | —Held | |
| 2 | Star Group L.P. UNIT | $16.6M | 1.30M | 13.2% | —Held | |
| 3 | Berkshire Hathaway Inc. CL A | $15.0M | 20 | 11.8% | —Held |
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Use Arkolith to show Lubar & Co., Inc's latest holdings, largest changes, and filing provenance.
As-of date vs the date the SEC received each filing
Reported 13F total per quarter. Raw filing totals can include option notional.
| Quarter | As of | Filed | Lag | Positions | Value | Form |
|---|---|---|---|---|---|---|
| Q2 2026 | Jun 30, 2026 | Jul 28, 2026 | 28d | 3 | $126.4M | 13F-HR |
| Q1 2026 | Mar 31, 2026 | Apr 24, 2026 | 24d | 3 | $119.0M | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 3, 2026 | 34d | 3 | $134.2M | 13F-HR |
| Q4 2020 | Dec 31, 2020 | Feb 5, 2021 | 36d | 6 | $35.7M | 13F-HR |
| Q3 2020 | Sep 30, 2020 | Oct 23, 2020 | 23d | 6 | $48.7M | 13F-HR |
| Q2 2020 | Jun 30, 2020 | Jul 28, 2020 | 28d | 6 | $44.4M | 13F-HR |
| Q1 2020 | Mar 31, 2020 | Apr 21, 2020 | 21d | 11 | $34.6M | 13F-HR |
| Q4 2019 | Dec 31, 2019 | Jan 29, 2020 | 29d | 9 | $82.3M | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. Book totals and portfolio weights cover reported non-option positions, which can include notes and warrants. Disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.