BERKSHIRE HATHAWAY INC DEL

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

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND's Holding History (CIK: 0001535845)

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

Q4 2025

Shares 557,859 Value ($000) $280,408 Avg Close $497.53 Range $473.15 - $516.85

Q3 2025

Shares 689,458 Value ($000) $346,618 Avg Close $484.36 Range $455.19 - $507.66

Q2 2025

Shares 477,645 Value ($000) $232,026 Avg Close $507.86 Range $462.10 - $542.07

Q1 2025

Shares 363,916 Value ($000) $193,814 Avg Close $486.15 Range $440.10 - $537.63

Q4 2024

Shares 525,110 Value ($000) $238,022 Avg Close $461.73 Range $437.90 - $491.67

Q1 2024

Shares 171,000 Value ($000) $71,909 Avg Close $393.34 Range $355.94 - $430.00

Q4 2023

Shares 307,678 Value ($000) $109,736 Avg Close $350.99 Range $330.58 - $364.05

Q3 2023

Shares 404,600 Value ($000) $141,731 Avg Close $354.77 Range $338.41 - $373.34

Q2 2023

Shares 376,200 Value ($000) $128,284 Avg Close $326.37 Range $307.07 - $342.50

Q1 2023

Shares 387,340 Value ($000) $119,599 Avg Close $308.18 Range $292.42 - $321.32

Q3 2022

Shares 4,866 Value ($000) $1,299 Avg Close $284.56 Range $261.55 - $308.15

Q2 2022

Shares 41,260 Value ($000) $11,265 Avg Close $313.72 Range $263.68 - $354.58

Q1 2022

Shares 14,742 Value ($000) $5,203 Avg Close $323.46 Range $294.81 - $362.10

Q4 2021

Shares 99,244 Value ($000) $29,674 Avg Close $286.41 Range $272.22 - $301.65

Q3 2021

Shares 363,326 Value ($000) $99,166 Avg Close $280.86 Range $270.73 - $291.82

Q2 2021

Shares 1,255,169 Value ($000) $348,837 Avg Close $279.44 Range $254.80 - $295.08

Q1 2021

Shares 362,559 Value ($000) $92,623 Avg Close $242.84 Range $226.10 - $267.50

Q4 2020

Shares 200,258 Value ($000) $46,434 Avg Close $220.20 Range $197.81 - $234.99

Q3 2020

Shares 11,301 Value ($000) $2,406 Avg Close $204.56 Range $177.34 - $223.24

Q2 2020

Shares 8,232 Value ($000) $1,469 Avg Close $182.62 Range $167.04 - $203.33

Q1 2020

Shares 2,513 Value ($000) $459 Avg Close $212.55 Range $159.50 - $231.61

Q4 2019

Shares 9,685 Value ($000) $2,194 Avg Close $217.17 Range $201.33 - $228.23

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	557,859	$280,408	$497.53	$473.15 - $516.85
Q3 2025	689,458	$346,618	$484.36	$455.19 - $507.66
Q2 2025	477,645	$232,026	$507.86	$462.10 - $542.07
Q1 2025	363,916	$193,814	$486.15	$440.10 - $537.63
Q4 2024	525,110	$238,022	$461.73	$437.90 - $491.67
Q1 2024	171,000	$71,909	$393.34	$355.94 - $430.00
Q4 2023	307,678	$109,736	$350.99	$330.58 - $364.05
Q3 2023	404,600	$141,731	$354.77	$338.41 - $373.34
Q2 2023	376,200	$128,284	$326.37	$307.07 - $342.50
Q1 2023	387,340	$119,599	$308.18	$292.42 - $321.32
Q3 2022	4,866	$1,299	$284.56	$261.55 - $308.15
Q2 2022	41,260	$11,265	$313.72	$263.68 - $354.58
Q1 2022	14,742	$5,203	$323.46	$294.81 - $362.10
Q4 2021	99,244	$29,674	$286.41	$272.22 - $301.65
Q3 2021	363,326	$99,166	$280.86	$270.73 - $291.82
Q2 2021	1,255,169	$348,837	$279.44	$254.80 - $295.08
Q1 2021	362,559	$92,623	$242.84	$226.10 - $267.50
Q4 2020	200,258	$46,434	$220.20	$197.81 - $234.99
Q3 2020	11,301	$2,406	$204.56	$177.34 - $223.24
Q2 2020	8,232	$1,469	$182.62	$167.04 - $203.33
Q1 2020	2,513	$459	$212.55	$159.50 - $231.61
Q4 2019	9,685	$2,194	$217.17	$201.33 - $228.23