BERKSHIRE HATHAWAY INC DEL

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

Aureus Asset Management, LLC's Holding History (CIK: 0001381296)

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

Q4 2025

Shares 6,873 Value ($000) $3,455 Avg Close $497.53 Range $473.15 - $516.85

Q3 2025

Shares 6,934 Value ($000) $3,486 Avg Close $484.36 Range $455.19 - $507.66

Q2 2025

Shares 6,931 Value ($000) $3,367 Avg Close $507.86 Range $462.10 - $542.07

Q1 2025

Shares 6,698 Value ($000) $3,567 Avg Close $486.15 Range $440.10 - $537.63

Q4 2024

Shares 6,698 Value ($000) $3,036 Avg Close $461.73 Range $437.90 - $491.67

Q3 2024

Shares 6,428 Value ($000) $2,959 Avg Close $442.18 Range $403.82 - $484.82

Q2 2024

Shares 6,428 Value ($000) $2,615 Avg Close $408.62 Range $395.66 - $424.52

Q1 2024

Shares 6,553 Value ($000) $2,756 Avg Close $393.34 Range $355.94 - $430.00

Q4 2023

Shares 6,152 Value ($000) $2,194 Avg Close $350.99 Range $330.58 - $364.05

Q3 2023

Shares 5,359 Value ($000) $1,877 Avg Close $354.77 Range $338.41 - $373.34

Q2 2023

Shares 5,434 Value ($000) $1,853 Avg Close $326.37 Range $307.07 - $342.50

Q1 2023

Shares 5,434 Value ($000) $1,678 Avg Close $308.18 Range $292.42 - $321.32

Q4 2022

Shares 5,484 Value ($000) $1,694 Avg Close $296.98 Range $259.85 - $319.56

Q3 2022

Shares 5,225 Value ($000) $1,395 Avg Close $284.56 Range $261.55 - $308.15

Q2 2022

Shares 6,238 Value ($000) $1,703 Avg Close $313.72 Range $263.68 - $354.58

Q1 2022

Shares 6,218 Value ($000) $2,194 Avg Close $323.46 Range $294.81 - $362.10

Q4 2021

Shares 6,201 Value ($000) $1,854 Avg Close $286.41 Range $272.22 - $301.65

Q3 2021

Shares 6,196 Value ($000) $1,691 Avg Close $280.86 Range $270.73 - $291.82

Q2 2021

Shares 6,680 Value ($000) $1,857 Avg Close $279.44 Range $254.80 - $295.08

Q1 2021

Shares 7,230 Value ($000) $1,847 Avg Close $242.84 Range $226.10 - $267.50

Q4 2020

Shares 8,144 Value ($000) $1,888 Avg Close $220.20 Range $197.81 - $234.99

Q3 2020

Shares 9,846 Value ($000) $2,097 Avg Close $204.56 Range $177.34 - $223.24

Q2 2020

Shares 10,598 Value ($000) $1,892 Avg Close $182.62 Range $167.04 - $203.33

Q1 2020

Shares 10,618 Value ($000) $1,941 Avg Close $212.55 Range $159.50 - $231.61

Q4 2019

Shares 10,556 Value ($000) $2,391 Avg Close $217.17 Range $201.33 - $228.23

Q3 2019

Shares 10,341 Value ($000) $2,151 Avg Close $206.04 Range $195.40 - $216.58

Q2 2019

Shares 10,541 Value ($000) $2,247 Avg Close $206.92 Range $196.89 - $219.16

Q1 2019

Shares 11,791 Value ($000) $2,369 Avg Close $201.85 Range $191.04 - $209.40

Q4 2018

Shares 12,083 Value ($000) $2,467 Avg Close $208.87 Range $186.10 - $224.07

Q3 2018

Shares 11,983 Value ($000) $2,566 Avg Close $205.18 Range $185.72 - $223.00

Q2 2018

Shares 12,183 Value ($000) $2,274 Avg Close $194.92 Range $184.75 - $202.77

Q1 2018

Shares 6,445 Value ($000) $1,286 Avg Close $205.34 Range $189.30 - $217.62

Q4 2017

Shares 6,977 Value ($000) $1,383 Avg Close $189.88 Range $180.44 - $200.50

Q3 2017

Shares 6,977 Value ($000) $1,279 Avg Close $176.72 Range $168.00 - $184.00

Q2 2017

Shares 6,977 Value ($000) $1,182 Avg Close $166.33 Range $160.93 - $171.95

Q1 2017

Shares 8,357 Value ($000) $1,364 Avg Close $167.31 Range $158.61 - $177.86

Q4 2016

Shares 8,639 Value ($000) $1,408 Avg Close $153.96 Range $141.92 - $167.25

Q3 2016

Shares 8,514 Value ($000) $1,230 Avg Close $146.25 Range $140.95 - $151.05

Q2 2016

Shares 9,892 Value ($000) $1,432 Avg Close $142.96 Range $136.65 - $148.03

Q1 2016

Shares 6,550 Value ($000) $929 Avg Close $132.58 Range $123.55 - $143.40

Q4 2015

Shares 10,100 Value ($000) $1,334 Avg Close $134.20 Range $127.46 - $138.62

Q3 2015

Shares 10,168 Value ($000) $1,326 Avg Close $137.00 Range $125.50 - $144.69

Q2 2015

Shares 11,370 Value ($000) $1,548 Avg Close $142.63 Range $136.08 - $148.57

Q1 2015

Shares 9,470 Value ($000) $1,367 Avg Close $147.14 Range $142.50 - $151.69

Q4 2014

Shares 9,200 Value ($000) $1,381 Avg Close $144.37 Range $132.03 - $152.94

Q3 2014

Shares 9,200 Value ($000) $1,271 Avg Close $133.21 Range $122.72 - $142.45

Q2 2014

Shares 9,200 Value ($000) $1,164 Avg Close $126.57 Range $121.09 - $129.73

Q1 2014

Shares 9,200 Value ($000) $1,150 Avg Close $116.85 Range $108.12 - $125.91

Q4 2013

Shares 7,200 Value ($000) $854 Avg Close $115.63 Range $110.84 - $118.66

Q3 2013

Shares 4,600 Value ($000) $522 Avg Close $115.36 Range $110.72 - $119.30

Q2 2013

Shares 4,600 Value ($000) $515 Avg Close $110.02 Range $102.69 - $115.98

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	6,873	$3,455	$497.53	$473.15 - $516.85
Q3 2025	6,934	$3,486	$484.36	$455.19 - $507.66
Q2 2025	6,931	$3,367	$507.86	$462.10 - $542.07
Q1 2025	6,698	$3,567	$486.15	$440.10 - $537.63
Q4 2024	6,698	$3,036	$461.73	$437.90 - $491.67
Q3 2024	6,428	$2,959	$442.18	$403.82 - $484.82
Q2 2024	6,428	$2,615	$408.62	$395.66 - $424.52
Q1 2024	6,553	$2,756	$393.34	$355.94 - $430.00
Q4 2023	6,152	$2,194	$350.99	$330.58 - $364.05
Q3 2023	5,359	$1,877	$354.77	$338.41 - $373.34
Q2 2023	5,434	$1,853	$326.37	$307.07 - $342.50
Q1 2023	5,434	$1,678	$308.18	$292.42 - $321.32
Q4 2022	5,484	$1,694	$296.98	$259.85 - $319.56
Q3 2022	5,225	$1,395	$284.56	$261.55 - $308.15
Q2 2022	6,238	$1,703	$313.72	$263.68 - $354.58
Q1 2022	6,218	$2,194	$323.46	$294.81 - $362.10
Q4 2021	6,201	$1,854	$286.41	$272.22 - $301.65
Q3 2021	6,196	$1,691	$280.86	$270.73 - $291.82
Q2 2021	6,680	$1,857	$279.44	$254.80 - $295.08
Q1 2021	7,230	$1,847	$242.84	$226.10 - $267.50
Q4 2020	8,144	$1,888	$220.20	$197.81 - $234.99
Q3 2020	9,846	$2,097	$204.56	$177.34 - $223.24
Q2 2020	10,598	$1,892	$182.62	$167.04 - $203.33
Q1 2020	10,618	$1,941	$212.55	$159.50 - $231.61
Q4 2019	10,556	$2,391	$217.17	$201.33 - $228.23
Q3 2019	10,341	$2,151	$206.04	$195.40 - $216.58
Q2 2019	10,541	$2,247	$206.92	$196.89 - $219.16
Q1 2019	11,791	$2,369	$201.85	$191.04 - $209.40
Q4 2018	12,083	$2,467	$208.87	$186.10 - $224.07
Q3 2018	11,983	$2,566	$205.18	$185.72 - $223.00
Q2 2018	12,183	$2,274	$194.92	$184.75 - $202.77
Q1 2018	6,445	$1,286	$205.34	$189.30 - $217.62
Q4 2017	6,977	$1,383	$189.88	$180.44 - $200.50
Q3 2017	6,977	$1,279	$176.72	$168.00 - $184.00
Q2 2017	6,977	$1,182	$166.33	$160.93 - $171.95
Q1 2017	8,357	$1,364	$167.31	$158.61 - $177.86
Q4 2016	8,639	$1,408	$153.96	$141.92 - $167.25
Q3 2016	8,514	$1,230	$146.25	$140.95 - $151.05
Q2 2016	9,892	$1,432	$142.96	$136.65 - $148.03
Q1 2016	6,550	$929	$132.58	$123.55 - $143.40
Q4 2015	10,100	$1,334	$134.20	$127.46 - $138.62
Q3 2015	10,168	$1,326	$137.00	$125.50 - $144.69
Q2 2015	11,370	$1,548	$142.63	$136.08 - $148.57
Q1 2015	9,470	$1,367	$147.14	$142.50 - $151.69
Q4 2014	9,200	$1,381	$144.37	$132.03 - $152.94
Q3 2014	9,200	$1,271	$133.21	$122.72 - $142.45
Q2 2014	9,200	$1,164	$126.57	$121.09 - $129.73
Q1 2014	9,200	$1,150	$116.85	$108.12 - $125.91
Q4 2013	7,200	$854	$115.63	$110.84 - $118.66
Q3 2013	4,600	$522	$115.36	$110.72 - $119.30
Q2 2013	4,600	$515	$110.02	$102.69 - $115.98