BERKSHIRE HATHAWAY INC DEL

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

Old Port Advisors's Holding History (CIK: 0001744348)

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

Q4 2025

Shares 15,802 Value ($000) $7,943 Avg Close $497.53 Range $473.15 - $516.85

Q3 2025

Shares 15,791 Value ($000) $7,939 Avg Close $484.36 Range $455.19 - $507.66

Q2 2025

Shares 15,841 Value ($000) $7,695 Avg Close $507.86 Range $462.10 - $542.07

Q1 2025

Shares 15,996 Value ($000) $8,519 Avg Close $486.15 Range $440.10 - $537.63

Q4 2024

Shares 16,375 Value ($000) $7,422 Avg Close $461.73 Range $437.90 - $491.67

Q3 2024

Shares 16,451 Value ($000) $7,572 Avg Close $442.18 Range $403.82 - $484.82

Q2 2024

Shares 16,540 Value ($000) $6,728 Avg Close $408.62 Range $395.66 - $424.52

Q1 2024

Shares 16,114 Value ($000) $6,776 Avg Close $393.34 Range $355.94 - $430.00

Q4 2023

Shares 16,075 Value ($000) $5,733 Avg Close $350.99 Range $330.58 - $364.05

Q3 2023

Shares 15,982 Value ($000) $5,599 Avg Close $354.77 Range $338.41 - $373.34

Q1 2023

Shares 16,059 Value ($000) $5,038 Avg Close $308.18 Range $292.42 - $321.32

Q4 2022

Shares 15,879 Value ($000) $4,905 Avg Close $296.98 Range $259.85 - $319.56

Q3 2022

Shares 15,821 Value ($000) $4,420 Avg Close $284.56 Range $261.55 - $308.15

Q2 2022

Shares 15,743 Value ($000) $4,340 Avg Close $313.72 Range $263.68 - $354.58

Q1 2022

Shares 14,274 Value ($000) $5,023 Avg Close $323.46 Range $294.81 - $362.10

Q4 2021

Shares 12,803 Value ($000) $4,010 Avg Close $286.41 Range $272.22 - $301.65

Q3 2021

Shares 12,878 Value ($000) $3,609 Avg Close $280.86 Range $270.73 - $291.82

Q2 2021

Shares 12,771 Value ($000) $3,554 Avg Close $279.44 Range $254.80 - $295.08

Q1 2021

Shares 13,113 Value ($000) $3,350 Avg Close $242.84 Range $226.10 - $267.50

Q4 2020

Shares 12,246 Value ($000) $2,798 Avg Close $220.20 Range $197.81 - $234.99

Q3 2020

Shares 11,618 Value ($000) $2,474 Avg Close $204.56 Range $177.34 - $223.24

Q2 2020

Shares 11,153 Value ($000) $1,991 Avg Close $182.62 Range $167.04 - $203.33

Q1 2020

Shares 9,693 Value ($000) $1,772 Avg Close $212.55 Range $159.50 - $231.61

Q4 2019

Shares 5,836 Value ($000) $1,325 Avg Close $217.17 Range $201.33 - $228.23

Q3 2019

Shares 5,243 Value ($000) $1,091 Avg Close $206.04 Range $195.40 - $216.58

Q2 2019

Shares 4,406 Value ($000) $948 Avg Close $206.92 Range $196.89 - $219.16

Q1 2019

Shares 3,979 Value ($000) $799 Avg Close $201.85 Range $191.04 - $209.40

Q4 2018

Shares 3,924 Value ($000) $788 Avg Close $208.87 Range $186.10 - $224.07

Q2 2018

Shares 2,232 Value ($000) $417 Avg Close $194.92 Range $184.75 - $202.77

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	15,802	$7,943	$497.53	$473.15 - $516.85
Q3 2025	15,791	$7,939	$484.36	$455.19 - $507.66
Q2 2025	15,841	$7,695	$507.86	$462.10 - $542.07
Q1 2025	15,996	$8,519	$486.15	$440.10 - $537.63
Q4 2024	16,375	$7,422	$461.73	$437.90 - $491.67
Q3 2024	16,451	$7,572	$442.18	$403.82 - $484.82
Q2 2024	16,540	$6,728	$408.62	$395.66 - $424.52
Q1 2024	16,114	$6,776	$393.34	$355.94 - $430.00
Q4 2023	16,075	$5,733	$350.99	$330.58 - $364.05
Q3 2023	15,982	$5,599	$354.77	$338.41 - $373.34
Q1 2023	16,059	$5,038	$308.18	$292.42 - $321.32
Q4 2022	15,879	$4,905	$296.98	$259.85 - $319.56
Q3 2022	15,821	$4,420	$284.56	$261.55 - $308.15
Q2 2022	15,743	$4,340	$313.72	$263.68 - $354.58
Q1 2022	14,274	$5,023	$323.46	$294.81 - $362.10
Q4 2021	12,803	$4,010	$286.41	$272.22 - $301.65
Q3 2021	12,878	$3,609	$280.86	$270.73 - $291.82
Q2 2021	12,771	$3,554	$279.44	$254.80 - $295.08
Q1 2021	13,113	$3,350	$242.84	$226.10 - $267.50
Q4 2020	12,246	$2,798	$220.20	$197.81 - $234.99
Q3 2020	11,618	$2,474	$204.56	$177.34 - $223.24
Q2 2020	11,153	$1,991	$182.62	$167.04 - $203.33
Q1 2020	9,693	$1,772	$212.55	$159.50 - $231.61
Q4 2019	5,836	$1,325	$217.17	$201.33 - $228.23
Q3 2019	5,243	$1,091	$206.04	$195.40 - $216.58
Q2 2019	4,406	$948	$206.92	$196.89 - $219.16
Q1 2019	3,979	$799	$201.85	$191.04 - $209.40
Q4 2018	3,924	$788	$208.87	$186.10 - $224.07
Q2 2018	2,232	$417	$194.92	$184.75 - $202.77