Lubar & Co., Inc

In its 13F for Q2 2026 (holdings as of June 30, 2026, filed July 28, 2026), Lubar & Co., Inc reported 3 stock positions worth $126.4 million. Its top holding was Hallador Energy (HNRG) at 75.0% of the portfolio, followed by Star (SGU, 13.2%) and Berkshire Hathaway Class A (BRK.A, 11.8%). Its holdings were unchanged from Q1 2026.

Most Recent 13F
Q2 2026
Location
MILWAUKEE, WI
CIK
0001473033
Portfolio Value
$126.4M (Q2 2026)
SEC Filing
0001140361-26-029846 ↗ filed Jul 28, 2026

Holdings Value

0$50.0M$100.0M$150.0M Q4 2025: $134.2M Q4 2025 Q1 2026: $119.0M Q1 2026 Q2 2026: $126.4M $126.4M Q2 2026

Holdings 3 stocks · $126.4M
HNRG Hallador Energy Co. 74.99% 5,452,019 $94.8M No change
SGU Star Group LP 13.16% 1,295,985 $16.6M No change
BRK.A Berkshire Hathaway Inc. Class A 11.85% 20 $15.0M No change

Portfolio Sells Q1 2026 → Q2 2026
None this quarter.

Portfolio Buys Q1 2026 → Q2 2026
None this quarter.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 3$126.4MHNRG, SGU, BRK.A
Q1 2026 3$119.0MHNRG, SGU, BRK.A
Q4 2025 3$134.2MHNRG, SGU, BRK.A