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Super Investors Lubar & Co., Inc
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Lubar & Co., Inc

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$107M
Positions
3
Quarter ended
September 30, 2026
Filed
October 15, 2026

Reported portfolio value by quarter (35 quarters reported)

$181M $34.6M
Q2 13 Q1 15 Q4 16 Q3 18 Q2 20 Q3 26

$95M in Q2 2013 → $107M now. Hover for any quarter.

Holdings

As reported for the quarter ended September 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
Hallador Energy Company 70.5% Unchanged 5,452,019 $75.6M
SG Star Group L.p. 15.5% Unchanged 1,295,985 $16.6M
Berkshire Hathaway Inc. 13.9% Unchanged 20 $14.9M

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q3 2026

quarter ended September 30, 2026 · filed October 15, 2026

No position changes this quarter.

Q2 2026

quarter ended June 30, 2026 · filed July 28, 2026

No position changes this quarter.

Q1 2026

quarter ended March 31, 2026 · filed April 24, 2026

No position changes this quarter.

Q4 2025

quarter ended December 31, 2025 · filed February 03, 2026

Company Action Shares changed Value of change % of portfolio
Hallador Energy Company Added +2,663,334 +$50.7M 77.3%
Berkshire Hathaway Inc. New +20 +$15.1M 11.2%
MF Mfc First Tr Exchange Traded Fd Iv (ftsm) Exited −112,397 −$6.75M —
Bank Of Montreal Exited −78,718 −$5.99M —
Enlink Midstream LLC Exited −1,381,596 −$5.13M —
IM Ishares Msci Low Volatility (usmv) Exited −29,136 −$1.98M —
SG Star Group L.p. Added +41,323 +$489K 11.4%

Q4 2020

quarter ended December 31, 2020 · filed February 05, 2021

Company Action Shares changed Value of change % of portfolio
MF Mfc First Tr Exchange Traded Fd Iv (ftsm) Trimmed −303,741 −$18.2M 18.9%

Q3 2020

quarter ended September 30, 2020 · filed October 23, 2020

Company Action Shares changed Value of change % of portfolio
MF Mfc First Tr Exchange Traded Fd Iv (ftsm) Added +46,724 +$2.8M 51.3%
IM Ishares Msci Low Volatility (usmv) Trimmed −2,191 −$140K 3.8%

Q2 2020

quarter ended June 30, 2020 · filed July 28, 2020

Company Action Shares changed Value of change % of portfolio
MF Mfc First Tr Exchange Traded Fd Iv (ftsm) Added +143,803 +$8.63M 49.9%
Rockwell Automation Exited −2,940 −$444K —
Wec Energy Group Inc. Exited −4,990 −$440K —
JC Johnson Controls Exited −11,500 −$310K —
Fiserv, Inc. Exited −3,100 −$294K —
GS Goldman Sachs Exited −1,900 −$294K —

Q1 2020

quarter ended March 31, 2020 · filed April 21, 2020

Company Action Shares changed Value of change % of portfolio
MF Mfc First Tr Exchange Traded Fd Iv (ftsm) Trimmed −384,552 −$22.7M 38.5%
IC Ishares Core S&P Mid-cap (ijh) Exited −19,790 −$4.07M —
VI Vanguard Index Mid- Cap Value ETF (voe) Exited −26,360 −$3.14M —
IT Ishares Tr Russell 2000 Value ETF (iwn) Exited −12,496 −$1.61M —
Rockwell Automation New +2,940 +$444K 1.3%
Wec Energy Group Inc. New +4,990 +$440K 1.3%
JC Johnson Controls New +11,500 +$310K 0.9%
Fiserv, Inc. New +3,100 +$294K 0.9%
GS Goldman Sachs New +1,900 +$294K 0.9%

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