BERKSHIRE HATHAWAY INC DEL

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

TRUST CO OF OKLAHOMA's Holding History (CIK: 0001083323)

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

Q4 2025

Shares 5,729 Value ($000) $2,880 Avg Close $497.53 Range $473.15 - $516.85

Q3 2025

Shares 6,474 Value ($000) $3,255 Avg Close $484.36 Range $455.19 - $507.66

Q2 2025

Shares 6,474 Value ($000) $3,145 Avg Close $507.86 Range $462.10 - $542.07

Q1 2025

Shares 6,513 Value ($000) $3,469 Avg Close $486.15 Range $440.10 - $537.63

Q4 2024

Shares 6,535 Value ($000) $2,962 Avg Close $461.73 Range $437.90 - $491.67

Q3 2024

Shares 6,528 Value ($000) $3,005 Avg Close $442.18 Range $403.82 - $484.82

Q2 2024

Shares 6,837 Value ($000) $2,781 Avg Close $408.62 Range $395.66 - $424.52

Q1 2024

Shares 6,916 Value ($000) $2,908 Avg Close $393.34 Range $355.94 - $430.00

Q4 2023

Shares 6,913 Value ($000) $2,466 Avg Close $350.99 Range $330.58 - $364.05

Q3 2023

Shares 6,928 Value ($000) $2,427 Avg Close $354.77 Range $338.41 - $373.34

Q2 2023

Shares 7,408 Value ($000) $2,526 Avg Close $326.37 Range $307.07 - $342.50

Q1 2023

Shares 7,526 Value ($000) $2,324 Avg Close $308.18 Range $292.42 - $321.32

Q4 2022

Shares 7,760 Value ($000) $2,397 Avg Close $296.98 Range $259.85 - $319.56

Q3 2022

Shares 9,060 Value ($000) $2,419,201 Avg Close $284.56 Range $261.55 - $308.15

Q2 2022

Shares 9,378 Value ($000) $2,560,382 Avg Close $313.72 Range $263.68 - $354.58

Q1 2022

Shares 9,132 Value ($000) $3,222,774 Avg Close $323.46 Range $294.81 - $362.10

Q4 2021

Shares 18,263 Value ($000) $5,460,637 Avg Close $286.41 Range $272.22 - $301.65

Q3 2021

Shares 18,813 Value ($000) $5,134,820 Avg Close $280.86 Range $270.73 - $291.82

Q2 2021

Shares 19,591 Value ($000) $5,444,731 Avg Close $279.44 Range $254.80 - $295.08

Q1 2021

Shares 20,010 Value ($000) $5,111,955 Avg Close $242.84 Range $226.10 - $267.50

Q4 2020

Shares 21,378 Value ($000) $4,956,917 Avg Close $220.20 Range $197.81 - $234.99

Q3 2020

Shares 23,303 Value ($000) $4,962,141 Avg Close $204.56 Range $177.34 - $223.24

Q1 2020

Shares 23,605 Value ($000) $4,315,702 Avg Close $212.55 Range $159.50 - $231.61

Q4 2019

Shares 22,430 Value ($000) $5,080,395 Avg Close $217.17 Range $201.33 - $228.23

Q3 2019

Shares 11,085 Value ($000) $2,305,902 Avg Close $206.04 Range $195.40 - $216.58

Q2 2019

Shares 11,035 Value ($000) $2,352,331 Avg Close $206.92 Range $196.89 - $219.16

Q1 2019

Shares 11,060 Value ($000) $2,221,843 Avg Close $201.85 Range $191.04 - $209.40

Q4 2018

Shares 15,310 Value ($000) $3,125,996 Avg Close $208.87 Range $186.10 - $224.07

Q3 2018

Shares 14,310 Value ($000) $3,063,914 Avg Close $205.18 Range $185.72 - $223.00

Q2 2018

Shares 14,355 Value ($000) $2,679,361 Avg Close $194.92 Range $184.75 - $202.77

Q1 2018

Shares 13,055 Value ($000) $2,604,211 Avg Close $205.34 Range $189.30 - $217.62

Q4 2017

Shares 12,765 Value ($000) $2,530,278 Avg Close $189.88 Range $180.44 - $200.50

Q3 2017

Shares 12,865 Value ($000) $2,358,412 Avg Close $176.72 Range $168.00 - $184.00

Q2 2017

Shares 12,990 Value ($000) $2,200,116 Avg Close $166.33 Range $160.93 - $171.95

Q1 2017

Shares 13,065 Value ($000) $2,177,674 Avg Close $167.31 Range $158.61 - $177.86

Q4 2016

Shares 12,765 Value ($000) $2,080,440 Avg Close $153.96 Range $141.92 - $167.25

Q4 2014

Shares 15,280 Value ($000) $2,294,292 Avg Close $144.37 Range $132.03 - $152.94

Q1 2014

Shares 14,580 Value ($000) $1,822,063 Avg Close $116.85 Range $108.12 - $125.91

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,729	$2,880	$497.53	$473.15 - $516.85
Q3 2025	6,474	$3,255	$484.36	$455.19 - $507.66
Q2 2025	6,474	$3,145	$507.86	$462.10 - $542.07
Q1 2025	6,513	$3,469	$486.15	$440.10 - $537.63
Q4 2024	6,535	$2,962	$461.73	$437.90 - $491.67
Q3 2024	6,528	$3,005	$442.18	$403.82 - $484.82
Q2 2024	6,837	$2,781	$408.62	$395.66 - $424.52
Q1 2024	6,916	$2,908	$393.34	$355.94 - $430.00
Q4 2023	6,913	$2,466	$350.99	$330.58 - $364.05
Q3 2023	6,928	$2,427	$354.77	$338.41 - $373.34
Q2 2023	7,408	$2,526	$326.37	$307.07 - $342.50
Q1 2023	7,526	$2,324	$308.18	$292.42 - $321.32
Q4 2022	7,760	$2,397	$296.98	$259.85 - $319.56
Q3 2022	9,060	$2,419,201	$284.56	$261.55 - $308.15
Q2 2022	9,378	$2,560,382	$313.72	$263.68 - $354.58
Q1 2022	9,132	$3,222,774	$323.46	$294.81 - $362.10
Q4 2021	18,263	$5,460,637	$286.41	$272.22 - $301.65
Q3 2021	18,813	$5,134,820	$280.86	$270.73 - $291.82
Q2 2021	19,591	$5,444,731	$279.44	$254.80 - $295.08
Q1 2021	20,010	$5,111,955	$242.84	$226.10 - $267.50
Q4 2020	21,378	$4,956,917	$220.20	$197.81 - $234.99
Q3 2020	23,303	$4,962,141	$204.56	$177.34 - $223.24
Q1 2020	23,605	$4,315,702	$212.55	$159.50 - $231.61
Q4 2019	22,430	$5,080,395	$217.17	$201.33 - $228.23
Q3 2019	11,085	$2,305,902	$206.04	$195.40 - $216.58
Q2 2019	11,035	$2,352,331	$206.92	$196.89 - $219.16
Q1 2019	11,060	$2,221,843	$201.85	$191.04 - $209.40
Q4 2018	15,310	$3,125,996	$208.87	$186.10 - $224.07
Q3 2018	14,310	$3,063,914	$205.18	$185.72 - $223.00
Q2 2018	14,355	$2,679,361	$194.92	$184.75 - $202.77
Q1 2018	13,055	$2,604,211	$205.34	$189.30 - $217.62
Q4 2017	12,765	$2,530,278	$189.88	$180.44 - $200.50
Q3 2017	12,865	$2,358,412	$176.72	$168.00 - $184.00
Q2 2017	12,990	$2,200,116	$166.33	$160.93 - $171.95
Q1 2017	13,065	$2,177,674	$167.31	$158.61 - $177.86
Q4 2016	12,765	$2,080,440	$153.96	$141.92 - $167.25
Q4 2014	15,280	$2,294,292	$144.37	$132.03 - $152.94
Q1 2014	14,580	$1,822,063	$116.85	$108.12 - $125.91