BERKSHIRE HATHAWAY INC DEL

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

First County Bank /CT/'s Holding History (CIK: 0001983616)

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

Q4 2025

Shares 2,367 Value ($000) $1,190 Avg Close $497.53 Range $473.15 - $516.85

Q3 2025

Shares 2,373 Value ($000) $1,193 Avg Close $484.36 Range $455.19 - $507.66

Q2 2025

Shares 2,337 Value ($000) $1,135 Avg Close $507.86 Range $462.10 - $542.07

Q1 2025

Shares 2,693 Value ($000) $1,434 Avg Close $486.15 Range $440.10 - $537.63

Q4 2024

Shares 2,648 Value ($000) $1,200 Avg Close $461.73 Range $437.90 - $491.67

Q3 2024

Shares 2,745 Value ($000) $1,263 Avg Close $442.18 Range $403.82 - $484.82

Q2 2024

Shares 2,682 Value ($000) $1,091 Avg Close $408.62 Range $395.66 - $424.52

Q1 2024

Shares 2,808 Value ($000) $1,181 Avg Close $393.34 Range $355.94 - $430.00

Q4 2023

Shares 2,795 Value ($000) $997 Avg Close $350.99 Range $330.58 - $364.05

Q3 2023

Shares 2,773 Value ($000) $971 Avg Close $354.77 Range $338.41 - $373.34

Q2 2023

Shares 2,564 Value ($000) $874 Avg Close $326.37 Range $307.07 - $342.50

Q1 2023

Shares 2,288 Value ($000) $706 Avg Close $308.18 Range $292.42 - $321.32

Q4 2022

Shares 2,123 Value ($000) $656 Avg Close $296.98 Range $259.85 - $319.56

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,367	$1,190	$497.53	$473.15 - $516.85
Q3 2025	2,373	$1,193	$484.36	$455.19 - $507.66
Q2 2025	2,337	$1,135	$507.86	$462.10 - $542.07
Q1 2025	2,693	$1,434	$486.15	$440.10 - $537.63
Q4 2024	2,648	$1,200	$461.73	$437.90 - $491.67
Q3 2024	2,745	$1,263	$442.18	$403.82 - $484.82
Q2 2024	2,682	$1,091	$408.62	$395.66 - $424.52
Q1 2024	2,808	$1,181	$393.34	$355.94 - $430.00
Q4 2023	2,795	$997	$350.99	$330.58 - $364.05
Q3 2023	2,773	$971	$354.77	$338.41 - $373.34
Q2 2023	2,564	$874	$326.37	$307.07 - $342.50
Q1 2023	2,288	$706	$308.18	$292.42 - $321.32
Q4 2022	2,123	$656	$296.98	$259.85 - $319.56