BERKSHIRE HATHAWAY INC DEL

Ticker: BRK/B CUSIP: 084670702 Class: Common Stock

MATTERN CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001803227)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 2,832 Value ($000) $1,424 Avg Close $497.53 Range $473.15 - $516.85

Q3 2025

Shares 2,691 Value ($000) $1,353 Avg Close $484.36 Range $455.19 - $507.66

Q2 2025

Shares 2,509 Value ($000) $1,219 Avg Close $507.86 Range $462.10 - $542.07

Q1 2025

Shares 2,172 Value ($000) $1,157 Avg Close $486.15 Range $440.10 - $537.63

Q4 2024

Shares 2,216 Value ($000) $1,004 Avg Close $461.73 Range $437.90 - $491.67

Q3 2024

Shares 2,208 Value ($000) $1,016 Avg Close $442.18 Range $403.82 - $484.82

Q2 2024

Shares 2,085 Value ($000) $848 Avg Close $408.62 Range $395.66 - $424.52

Q1 2024

Shares 1,882 Value ($000) $791 Avg Close $393.34 Range $355.94 - $430.00

Q4 2023

Shares 1,214 Value ($000) $433 Avg Close $350.99 Range $330.58 - $364.05

Q3 2023

Shares 1,264 Value ($000) $443 Avg Close $354.77 Range $338.41 - $373.34

Q2 2023

Shares 1,264 Value ($000) $431 Avg Close $326.37 Range $307.07 - $342.50

Q1 2023

Shares 1,285 Value ($000) $397 Avg Close $308.18 Range $292.42 - $321.32

Q4 2022

Shares 1,240 Value ($000) $383 Avg Close $296.98 Range $259.85 - $319.56

Q3 2022

Shares 1,240 Value ($000) $331 Avg Close $284.56 Range $261.55 - $308.15

Q2 2022

Shares 1,235 Value ($000) $337 Avg Close $313.72 Range $263.68 - $354.58

Q1 2022

Shares 1,185 Value ($000) $418 Avg Close $323.46 Range $294.81 - $362.10

Q4 2021

Shares 1,135 Value ($000) $339 Avg Close $286.41 Range $272.22 - $301.65

Q3 2021

Shares 1,135 Value ($000) $310 Avg Close $280.86 Range $270.73 - $291.82

Q2 2021

Shares 1,135 Value ($000) $315 Avg Close $279.44 Range $254.80 - $295.08

Q1 2021

Shares 1,135 Value ($000) $290 Avg Close $242.84 Range $226.10 - $267.50

Q4 2020

Shares 1,102 Value ($000) $256 Avg Close $220.20 Range $197.81 - $234.99

Q3 2020

Shares 1,126 Value ($000) $240 Avg Close $204.56 Range $177.34 - $223.24

Q2 2020

Shares 1,126 Value ($000) $201 Avg Close $182.62 Range $167.04 - $203.33

Q1 2020

Shares 1,116 Value ($000) $204 Avg Close $212.55 Range $159.50 - $231.61

Q4 2019

Shares 1,116 Value ($000) $253 Avg Close $217.17 Range $201.33 - $228.23

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,832	$1,424	$497.53	$473.15 - $516.85
Q3 2025	2,691	$1,353	$484.36	$455.19 - $507.66
Q2 2025	2,509	$1,219	$507.86	$462.10 - $542.07
Q1 2025	2,172	$1,157	$486.15	$440.10 - $537.63
Q4 2024	2,216	$1,004	$461.73	$437.90 - $491.67
Q3 2024	2,208	$1,016	$442.18	$403.82 - $484.82
Q2 2024	2,085	$848	$408.62	$395.66 - $424.52
Q1 2024	1,882	$791	$393.34	$355.94 - $430.00
Q4 2023	1,214	$433	$350.99	$330.58 - $364.05
Q3 2023	1,264	$443	$354.77	$338.41 - $373.34
Q2 2023	1,264	$431	$326.37	$307.07 - $342.50
Q1 2023	1,285	$397	$308.18	$292.42 - $321.32
Q4 2022	1,240	$383	$296.98	$259.85 - $319.56
Q3 2022	1,240	$331	$284.56	$261.55 - $308.15
Q2 2022	1,235	$337	$313.72	$263.68 - $354.58
Q1 2022	1,185	$418	$323.46	$294.81 - $362.10
Q4 2021	1,135	$339	$286.41	$272.22 - $301.65
Q3 2021	1,135	$310	$280.86	$270.73 - $291.82
Q2 2021	1,135	$315	$279.44	$254.80 - $295.08
Q1 2021	1,135	$290	$242.84	$226.10 - $267.50
Q4 2020	1,102	$256	$220.20	$197.81 - $234.99
Q3 2020	1,126	$240	$204.56	$177.34 - $223.24
Q2 2020	1,126	$201	$182.62	$167.04 - $203.33
Q1 2020	1,116	$204	$212.55	$159.50 - $231.61
Q4 2019	1,116	$253	$217.17	$201.33 - $228.23