BERKSHIRE HATHAWAY INC DEL

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

OBSIDIAN CIO, LLC's Holding History (CIK: 0001843581)

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

Q4 2025
Shares 36 Value ($000) $18 Avg Close $497.53 Range $473.15 - $516.85
Q3 2025
Shares 2,246 Value ($000) $1,129 Avg Close $484.36 Range $455.19 - $507.66
Q2 2025
Shares 2,107 Value ($000) $1,024 Avg Close $507.86 Range $462.10 - $542.07
Q1 2025
Shares 3,906 Value ($000) $2,080 Avg Close $486.15 Range $440.10 - $537.63
Q4 2024
Shares 3,796 Value ($000) $1,721 Avg Close $461.73 Range $437.90 - $491.67
Q3 2024
Shares 3,816 Value ($000) $1,756 Avg Close $442.18 Range $403.82 - $484.82
Q2 2024
Shares 3,986 Value ($000) $1,622 Avg Close $408.62 Range $395.66 - $424.52
Q1 2024
Shares 3,367 Value ($000) $1,416 Avg Close $393.34 Range $355.94 - $430.00
Q4 2023
Shares 2,486 Value ($000) $887 Avg Close $350.99 Range $330.58 - $364.05
Q3 2023
Shares 999 Value ($000) $350 Avg Close $354.77 Range $338.41 - $373.34
Q2 2023
Shares 695 Value ($000) $237 Avg Close $326.37 Range $307.07 - $342.50
Q1 2023
Shares 710 Value ($000) $219 Avg Close $308.18 Range $292.42 - $321.32
Q4 2022
Shares 735 Value ($000) $227 Avg Close $296.98 Range $259.85 - $319.56
Q3 2022
Shares 1,106 Value ($000) $295 Avg Close $284.56 Range $261.55 - $308.15
Q2 2022
Shares 1,106 Value ($000) $302 Avg Close $313.72 Range $263.68 - $354.58
Q1 2022
Shares 1,031 Value ($000) $364 Avg Close $323.46 Range $294.81 - $362.10
Q4 2021
Shares 1,065 Value ($000) $318 Avg Close $286.41 Range $272.22 - $301.65
Q3 2021
Shares 1,065 Value ($000) $291 Avg Close $280.86 Range $270.73 - $291.82
Q2 2021
Shares 1,015 Value ($000) $259 Avg Close $279.44 Range $254.80 - $295.08
Q1 2021
Shares 1,015 Value ($000) $259 Avg Close $242.84 Range $226.10 - $267.50
Q4 2020
Shares 1,004 Value ($000) $233 Avg Close $220.20 Range $197.81 - $234.99