Lubar & Co., Inc

In its 13F for Q1 2026 (holdings as of March 31, 2026, filed April 24, 2026), Lubar & Co., Inc reported 3 stock positions worth $119.0 million. Its top holding was Hallador Energy (HNRG) at 74.6% of the portfolio, followed by Star (SGU, 13.4%) and Berkshire Hathaway Class A (BRK.A, 12.1%). Its holdings were unchanged from Q4 2025.

Most Recent 13F
Q2 2026
Location
MILWAUKEE, WI
CIK
0001473033
Portfolio Value
$119.0M (Q1 2026)
SEC Filing
0001140361-26-016498 ↗ filed Apr 24, 2026

Holdings Value

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

Holdings 3 stocks · $119.0M
HNRG Hallador Energy Co. 74.56% 5,452,019 $88.8M No change
SGU Star Group LP 13.37% 1,295,985 $15.9M No change
BRK.A Berkshire Hathaway Inc. Class A 12.07% 20 $14.4M No change

Portfolio Sells Q4 2025 → Q1 2026
None this quarter.

Portfolio Buys Q4 2025 → Q1 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