BERKSHIRE HATHAWAY INC DEL

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

HARBOR INVESTMENT ADVISORY, LLC's Holding History (CIK: 0001468792)

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

Q4 2025

Shares 236,999 Value ($000) $33,568 Avg Close $497.53 Range $473.15 - $516.85

Q3 2025

Shares 236,694 Value ($000) $33,420 Avg Close $484.36 Range $455.19 - $507.66

Q2 2025

Shares 232,739 Value ($000) $30,377 Avg Close $507.86 Range $462.10 - $542.07

Q1 2025

Shares 232,360 Value ($000) $33,086 Avg Close $486.15 Range $440.10 - $537.63

Q4 2024

Shares 231,559 Value ($000) $27,822 Avg Close $461.73 Range $437.90 - $491.67

Q3 2024

Shares 223,384 Value ($000) $24,485 Avg Close $442.18 Range $403.82 - $484.82

Q2 2024

Shares 223,395 Value ($000) $21,665 Avg Close $408.62 Range $395.66 - $424.52

Q1 2024

Shares 223,887 Value ($000) $22,597 Avg Close $393.34 Range $355.94 - $430.00

Q4 2023

Shares 224,450 Value ($000) $19,392 Avg Close $350.99 Range $330.58 - $364.05

Q3 2023

Shares 222,867 Value ($000) $18,495 Avg Close $354.77 Range $338.41 - $373.34

Q2 2023

Shares 223,210 Value ($000) $18,125 Avg Close $326.37 Range $307.07 - $342.50

Q1 2023

Shares 52,423 Value ($000) $16,187 Avg Close $308.18 Range $292.42 - $321.32

Q4 2022

Shares 52,732 Value ($000) $16,289 Avg Close $296.98 Range $259.85 - $319.56

Q3 2022

Shares 51,544 Value ($000) $13,763 Avg Close $284.56 Range $261.55 - $308.15

Q2 2022

Shares 49,265 Value ($000) $13,450 Avg Close $313.72 Range $263.68 - $354.58

Q1 2022

Shares 49,381 Value ($000) $17,427 Avg Close $323.46 Range $294.81 - $362.10

Q4 2021

Shares 48,592 Value ($000) $14,529 Avg Close $286.41 Range $272.22 - $301.65

Q3 2021

Shares 48,950 Value ($000) $13,360 Avg Close $280.86 Range $270.73 - $291.82

Q2 2021

Shares 48,888 Value ($000) $13,587 Avg Close $279.44 Range $254.80 - $295.08

Q1 2021

Shares 49,588 Value ($000) $12,668 Avg Close $242.84 Range $226.10 - $267.50

Q4 2020

Shares 48,937 Value ($000) $11,347 Avg Close $220.20 Range $197.81 - $234.99

Q3 2020

Shares 48,929 Value ($000) $10,419 Avg Close $204.56 Range $177.34 - $223.24

Q2 2020

Shares 45,649 Value ($000) $8,149 Avg Close $182.62 Range $167.04 - $203.33

Q1 2020

Shares 44,911 Value ($000) $8,211 Avg Close $212.55 Range $159.50 - $231.61

Q4 2019

Shares 44,034 Value ($000) $9,974 Avg Close $217.17 Range $201.33 - $228.23

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	236,999	$33,568	$497.53	$473.15 - $516.85
Q3 2025	236,694	$33,420	$484.36	$455.19 - $507.66
Q2 2025	232,739	$30,377	$507.86	$462.10 - $542.07
Q1 2025	232,360	$33,086	$486.15	$440.10 - $537.63
Q4 2024	231,559	$27,822	$461.73	$437.90 - $491.67
Q3 2024	223,384	$24,485	$442.18	$403.82 - $484.82
Q2 2024	223,395	$21,665	$408.62	$395.66 - $424.52
Q1 2024	223,887	$22,597	$393.34	$355.94 - $430.00
Q4 2023	224,450	$19,392	$350.99	$330.58 - $364.05
Q3 2023	222,867	$18,495	$354.77	$338.41 - $373.34
Q2 2023	223,210	$18,125	$326.37	$307.07 - $342.50
Q1 2023	52,423	$16,187	$308.18	$292.42 - $321.32
Q4 2022	52,732	$16,289	$296.98	$259.85 - $319.56
Q3 2022	51,544	$13,763	$284.56	$261.55 - $308.15
Q2 2022	49,265	$13,450	$313.72	$263.68 - $354.58
Q1 2022	49,381	$17,427	$323.46	$294.81 - $362.10
Q4 2021	48,592	$14,529	$286.41	$272.22 - $301.65
Q3 2021	48,950	$13,360	$280.86	$270.73 - $291.82
Q2 2021	48,888	$13,587	$279.44	$254.80 - $295.08
Q1 2021	49,588	$12,668	$242.84	$226.10 - $267.50
Q4 2020	48,937	$11,347	$220.20	$197.81 - $234.99
Q3 2020	48,929	$10,419	$204.56	$177.34 - $223.24
Q2 2020	45,649	$8,149	$182.62	$167.04 - $203.33
Q1 2020	44,911	$8,211	$212.55	$159.50 - $231.61
Q4 2019	44,034	$9,974	$217.17	$201.33 - $228.23