BERKSHIRE HATHAWAY INC DEL

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

MAD RIVER INVESTORS's Holding History (CIK: 0001384484)

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

Q4 2025

Shares 1,125 Value ($000) $565 Avg Close $497.53 Range $473.15 - $516.85

Q3 2025

Shares 1,175 Value ($000) $591 Avg Close $484.36 Range $455.19 - $507.66

Q2 2025

Shares 1,175 Value ($000) $571 Avg Close $507.86 Range $462.10 - $542.07

Q1 2025

Shares 1,900 Value ($000) $1,012 Avg Close $486.15 Range $440.10 - $537.63

Q4 2024

Shares 6,725 Value ($000) $3,048 Avg Close $461.73 Range $437.90 - $491.67

Q3 2024

Shares 7,225 Value ($000) $3,325 Avg Close $442.18 Range $403.82 - $484.82

Q2 2024

Shares 7,463 Value ($000) $3,036 Avg Close $408.62 Range $395.66 - $424.52

Q1 2024

Shares 7,813 Value ($000) $3,286 Avg Close $393.34 Range $355.94 - $430.00

Q4 2023

Shares 7,863 Value ($000) $2,804 Avg Close $350.99 Range $330.58 - $364.05

Q3 2023

Shares 7,863 Value ($000) $2,754 Avg Close $354.77 Range $338.41 - $373.34

Q2 2023

Shares 7,863 Value ($000) $2,767 Avg Close $326.37 Range $307.07 - $342.50

Q1 2023

Shares 8,113 Value ($000) $2,505 Avg Close $308.18 Range $292.42 - $321.32

Q4 2022

Shares 9,888 Value ($000) $3 Avg Close $296.98 Range $259.85 - $319.56

Q3 2022

Shares 9,928 Value ($000) $2,651 Avg Close $284.56 Range $261.55 - $308.15

Q2 2022

Shares 9,928 Value ($000) $2,711 Avg Close $313.72 Range $263.68 - $354.58

Q1 2022

Shares 10,003 Value ($000) $3,530 Avg Close $323.46 Range $294.81 - $362.10

Q4 2021

Shares 11,203 Value ($000) $3,350 Avg Close $286.41 Range $272.22 - $301.65

Q3 2021

Shares 14,028 Value ($000) $3,899 Avg Close $280.86 Range $270.73 - $291.82

Q2 2021

Shares 14,028 Value ($000) $3,899 Avg Close $279.44 Range $254.80 - $295.08

Q1 2021

Shares 16,139 Value ($000) $4,123 Avg Close $242.84 Range $226.10 - $267.50

Q4 2020

Shares 16,449 Value ($000) $3,814 Avg Close $220.20 Range $197.81 - $234.99

Q3 2020

Shares 16,749 Value ($000) $3,567 Avg Close $204.56 Range $177.34 - $223.24

Q2 2020

Shares 18,554 Value ($000) $3,312 Avg Close $182.62 Range $167.04 - $203.33

Q1 2020

Shares 21,004 Value ($000) $3,840 Avg Close $212.55 Range $159.50 - $231.61

Q4 2019

Shares 23,804 Value ($000) $5,392 Avg Close $217.17 Range $201.33 - $228.23

Q3 2019

Shares 23,854 Value ($000) $4,962 Avg Close $206.04 Range $195.40 - $216.58

Q2 2019

Shares 24,204 Value ($000) $5,160 Avg Close $206.92 Range $196.89 - $219.16

Q1 2019

Shares 26,504 Value ($000) $5,324 Avg Close $201.85 Range $191.04 - $209.40

Q4 2018

Shares 27,834 Value ($000) $5,683 Avg Close $208.87 Range $186.10 - $224.07

Q3 2018

Shares 28,184 Value ($000) $6,034 Avg Close $205.18 Range $185.72 - $223.00

Q2 2018

Shares 28,184 Value ($000) $5,261 Avg Close $194.92 Range $184.75 - $202.77

Q1 2018

Shares 28,504 Value ($000) $5,686 Avg Close $205.34 Range $189.30 - $217.62

Q4 2017

Shares 28,504 Value ($000) $5,650 Avg Close $189.88 Range $180.44 - $200.50

Q3 2017

Shares 29,854 Value ($000) $5,473 Avg Close $176.72 Range $168.00 - $184.00

Q2 2017

Shares 37,604 Value ($000) $6,369 Avg Close $166.33 Range $160.93 - $171.95

Q1 2017

Shares 37,954 Value ($000) $6,326 Avg Close $167.31 Range $158.61 - $177.86

Q4 2016

Shares 39,004 Value ($000) $6,357 Avg Close $153.96 Range $141.92 - $167.25

Q3 2016

Shares 39,554 Value ($000) $5,714 Avg Close $146.25 Range $140.95 - $151.05

Q2 2016

Shares 40,404 Value ($000) $5,850 Avg Close $142.96 Range $136.65 - $148.03

Q1 2016

Shares 43,854 Value ($000) $6,222 Avg Close $132.58 Range $123.55 - $143.40

Q4 2015

Shares 44,379 Value ($000) $5,860 Avg Close $134.20 Range $127.46 - $138.62

Q2 2015

Shares 45,630 Value ($000) $6,211 Avg Close $142.63 Range $136.08 - $148.57

Q1 2015

Shares 45,755 Value ($000) $6,603 Avg Close $147.14 Range $142.50 - $151.69

Q3 2014

Shares 45,605 Value ($000) $6,300 Avg Close $133.21 Range $122.72 - $142.45

Q2 2014

Shares 49,030 Value ($000) $6,205 Avg Close $126.57 Range $121.09 - $129.73

Q1 2014

Shares 46,830 Value ($000) $5,852 Avg Close $116.85 Range $108.12 - $125.91

Q4 2013

Shares 47,655 Value ($000) $5,650 Avg Close $115.63 Range $110.84 - $118.66

Q3 2013

Shares 47,455 Value ($000) $5,387 Avg Close $115.36 Range $110.72 - $119.30

Q2 2013

Shares 47,355 Value ($000) $5,300 Avg Close $110.02 Range $102.69 - $115.98

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,125	$565	$497.53	$473.15 - $516.85
Q3 2025	1,175	$591	$484.36	$455.19 - $507.66
Q2 2025	1,175	$571	$507.86	$462.10 - $542.07
Q1 2025	1,900	$1,012	$486.15	$440.10 - $537.63
Q4 2024	6,725	$3,048	$461.73	$437.90 - $491.67
Q3 2024	7,225	$3,325	$442.18	$403.82 - $484.82
Q2 2024	7,463	$3,036	$408.62	$395.66 - $424.52
Q1 2024	7,813	$3,286	$393.34	$355.94 - $430.00
Q4 2023	7,863	$2,804	$350.99	$330.58 - $364.05
Q3 2023	7,863	$2,754	$354.77	$338.41 - $373.34
Q2 2023	7,863	$2,767	$326.37	$307.07 - $342.50
Q1 2023	8,113	$2,505	$308.18	$292.42 - $321.32
Q4 2022	9,888	$3	$296.98	$259.85 - $319.56
Q3 2022	9,928	$2,651	$284.56	$261.55 - $308.15
Q2 2022	9,928	$2,711	$313.72	$263.68 - $354.58
Q1 2022	10,003	$3,530	$323.46	$294.81 - $362.10
Q4 2021	11,203	$3,350	$286.41	$272.22 - $301.65
Q3 2021	14,028	$3,899	$280.86	$270.73 - $291.82
Q2 2021	14,028	$3,899	$279.44	$254.80 - $295.08
Q1 2021	16,139	$4,123	$242.84	$226.10 - $267.50
Q4 2020	16,449	$3,814	$220.20	$197.81 - $234.99
Q3 2020	16,749	$3,567	$204.56	$177.34 - $223.24
Q2 2020	18,554	$3,312	$182.62	$167.04 - $203.33
Q1 2020	21,004	$3,840	$212.55	$159.50 - $231.61
Q4 2019	23,804	$5,392	$217.17	$201.33 - $228.23
Q3 2019	23,854	$4,962	$206.04	$195.40 - $216.58
Q2 2019	24,204	$5,160	$206.92	$196.89 - $219.16
Q1 2019	26,504	$5,324	$201.85	$191.04 - $209.40
Q4 2018	27,834	$5,683	$208.87	$186.10 - $224.07
Q3 2018	28,184	$6,034	$205.18	$185.72 - $223.00
Q2 2018	28,184	$5,261	$194.92	$184.75 - $202.77
Q1 2018	28,504	$5,686	$205.34	$189.30 - $217.62
Q4 2017	28,504	$5,650	$189.88	$180.44 - $200.50
Q3 2017	29,854	$5,473	$176.72	$168.00 - $184.00
Q2 2017	37,604	$6,369	$166.33	$160.93 - $171.95
Q1 2017	37,954	$6,326	$167.31	$158.61 - $177.86
Q4 2016	39,004	$6,357	$153.96	$141.92 - $167.25
Q3 2016	39,554	$5,714	$146.25	$140.95 - $151.05
Q2 2016	40,404	$5,850	$142.96	$136.65 - $148.03
Q1 2016	43,854	$6,222	$132.58	$123.55 - $143.40
Q4 2015	44,379	$5,860	$134.20	$127.46 - $138.62
Q2 2015	45,630	$6,211	$142.63	$136.08 - $148.57
Q1 2015	45,755	$6,603	$147.14	$142.50 - $151.69
Q3 2014	45,605	$6,300	$133.21	$122.72 - $142.45
Q2 2014	49,030	$6,205	$126.57	$121.09 - $129.73
Q1 2014	46,830	$5,852	$116.85	$108.12 - $125.91
Q4 2013	47,655	$5,650	$115.63	$110.84 - $118.66
Q3 2013	47,455	$5,387	$115.36	$110.72 - $119.30
Q2 2013	47,355	$5,300	$110.02	$102.69 - $115.98