BERKSHIRE HATHAWAY INC DEL

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

Platform Technology Partners's Holding History (CIK: 0001830817)

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

Q4 2025

Shares 15,553 Value ($000) $7,818 Avg Close $497.53 Range $473.15 - $516.85

Q3 2025

Shares 15,245 Value ($000) $7,664 Avg Close $484.36 Range $455.19 - $507.66

Q2 2025

Shares 14,837 Value ($000) $7,207 Avg Close $507.86 Range $462.10 - $542.07

Q1 2025

Shares 14,768 Value ($000) $7,865 Avg Close $486.15 Range $440.10 - $537.63

Q4 2024

Shares 13,743 Value ($000) $6,230 Avg Close $461.73 Range $437.90 - $491.67

Q3 2024

Shares 14,138 Value ($000) $6,507 Avg Close $442.18 Range $403.82 - $484.82

Q2 2024

Shares 13,924 Value ($000) $5,664 Avg Close $408.62 Range $395.66 - $424.52

Q4 2023

Shares 13,966 Value ($000) $5,554 Avg Close $350.99 Range $330.58 - $364.05

Q3 2023

Shares 13,343 Value ($000) $4,674 Avg Close $354.77 Range $338.41 - $373.34

Q2 2023

Shares 11,849 Value ($000) $4,069 Avg Close $326.37 Range $307.07 - $342.50

Q1 2023

Shares 11,982 Value ($000) $3,700 Avg Close $308.18 Range $292.42 - $321.32

Q4 2022

Shares 11,982 Value ($000) $3,701 Avg Close $296.98 Range $259.85 - $319.56

Q3 2022

Shares 12,105 Value ($000) $3,232 Avg Close $284.56 Range $261.55 - $308.15

Q2 2022

Shares 11,877 Value ($000) $3,243 Avg Close $313.72 Range $263.68 - $354.58

Q1 2022

Shares 11,796 Value ($000) $4,163 Avg Close $323.46 Range $294.81 - $362.10

Q4 2021

Shares 12,000 Value ($000) $3,588 Avg Close $286.41 Range $272.22 - $301.65

Q3 2021

Shares 11,816 Value ($000) $3,225 Avg Close $280.86 Range $270.73 - $291.82

Q2 2021

Shares 12,558 Value ($000) $3,490 Avg Close $279.44 Range $254.80 - $295.08

Q4 2020

Shares 12,985 Value ($000) $3,011 Avg Close $220.20 Range $197.81 - $234.99

Q3 2020

Shares 12,911 Value ($000) $2,749 Avg Close $204.56 Range $177.34 - $223.24

Q2 2020

Shares 13,040 Value ($000) $2,328 Avg Close $182.62 Range $167.04 - $203.33

Q1 2020

Shares 13,458 Value ($000) $2,461 Avg Close $212.55 Range $159.50 - $231.61

Q4 2019

Shares 7,180 Value ($000) $1,626 Avg Close $217.17 Range $201.33 - $228.23

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	15,553	$7,818	$497.53	$473.15 - $516.85
Q3 2025	15,245	$7,664	$484.36	$455.19 - $507.66
Q2 2025	14,837	$7,207	$507.86	$462.10 - $542.07
Q1 2025	14,768	$7,865	$486.15	$440.10 - $537.63
Q4 2024	13,743	$6,230	$461.73	$437.90 - $491.67
Q3 2024	14,138	$6,507	$442.18	$403.82 - $484.82
Q2 2024	13,924	$5,664	$408.62	$395.66 - $424.52
Q4 2023	13,966	$5,554	$350.99	$330.58 - $364.05
Q3 2023	13,343	$4,674	$354.77	$338.41 - $373.34
Q2 2023	11,849	$4,069	$326.37	$307.07 - $342.50
Q1 2023	11,982	$3,700	$308.18	$292.42 - $321.32
Q4 2022	11,982	$3,701	$296.98	$259.85 - $319.56
Q3 2022	12,105	$3,232	$284.56	$261.55 - $308.15
Q2 2022	11,877	$3,243	$313.72	$263.68 - $354.58
Q1 2022	11,796	$4,163	$323.46	$294.81 - $362.10
Q4 2021	12,000	$3,588	$286.41	$272.22 - $301.65
Q3 2021	11,816	$3,225	$280.86	$270.73 - $291.82
Q2 2021	12,558	$3,490	$279.44	$254.80 - $295.08
Q4 2020	12,985	$3,011	$220.20	$197.81 - $234.99
Q3 2020	12,911	$2,749	$204.56	$177.34 - $223.24
Q2 2020	13,040	$2,328	$182.62	$167.04 - $203.33
Q1 2020	13,458	$2,461	$212.55	$159.50 - $231.61
Q4 2019	7,180	$1,626	$217.17	$201.33 - $228.23