BERKSHIRE HATHAWAY INC DEL

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

Zurcher Kantonalbank (Zurich Cantonalbank)'s Holding History (CIK: 0001368163)

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

Q4 2025

Shares 341,895 Value ($000) $171,854 Avg Close $497.53 Range $473.15 - $516.85

Q3 2025

Shares 332,632 Value ($000) $167,227 Avg Close $484.36 Range $455.19 - $507.66

Q2 2025

Shares 312,884 Value ($000) $151,990 Avg Close $507.86 Range $462.10 - $542.07

Q1 2025

Shares 288,416 Value ($000) $153,605 Avg Close $486.15 Range $440.10 - $537.63

Q4 2024

Shares 277,835 Value ($000) $125,937 Avg Close $461.73 Range $437.90 - $491.67

Q3 2024

Shares 259,704 Value ($000) $119,531 Avg Close $442.18 Range $403.82 - $484.82

Q2 2024

Shares 248,940 Value ($000) $101,269 Avg Close $408.62 Range $395.66 - $424.52

Q1 2024

Shares 229,396 Value ($000) $96,466 Avg Close $393.34 Range $355.94 - $430.00

Q4 2023

Shares 226,547 Value ($000) $80,800 Avg Close $350.99 Range $330.58 - $364.05

Q3 2023

Shares 220,255 Value ($000) $77,155 Avg Close $354.77 Range $338.41 - $373.34

Q2 2023

Shares 215,643 Value ($000) $73,534 Avg Close $326.37 Range $307.07 - $342.50

Q1 2023

Shares 208,898 Value ($000) $64,501 Avg Close $308.18 Range $292.42 - $321.32

Q4 2022

Shares 193,150 Value ($000) $59,664 Avg Close $296.98 Range $259.85 - $319.56

Q3 2022

Shares 201,884 Value ($000) $53,907 Avg Close $284.56 Range $261.55 - $308.15

Q2 2022

Shares 178,957 Value ($000) $48,859 Avg Close $313.72 Range $263.68 - $354.58

Q1 2022

Shares 179,932 Value ($000) $63,500 Avg Close $323.46 Range $294.81 - $362.10

Q4 2021

Shares 183,541 Value ($000) $54,879 Avg Close $286.41 Range $272.22 - $301.65

Q3 2021

Shares 212,456 Value ($000) $57,988 Avg Close $280.86 Range $270.73 - $291.82

Q2 2021

Shares 229,487 Value ($000) $63,779 Avg Close $279.44 Range $254.80 - $295.08

Q1 2021

Shares 265,560 Value ($000) $67,843 Avg Close $242.84 Range $226.10 - $267.50

Q4 2020

Shares 283,975 Value ($000) $65,845 Avg Close $220.20 Range $197.81 - $234.99

Q3 2020

Shares 287,539 Value ($000) $61,229 Avg Close $204.56 Range $177.34 - $223.24

Q2 2020

Shares 242,484 Value ($000) $43,286 Avg Close $182.62 Range $167.04 - $203.33

Q1 2020

Shares 319,795 Value ($000) $58,468 Avg Close $212.55 Range $159.50 - $231.61

Q4 2019

Shares 288,545 Value ($000) $65,355 Avg Close $217.17 Range $201.33 - $228.23

Q3 2019

Shares 288,494 Value ($000) $60,013 Avg Close $206.04 Range $195.40 - $216.58

Q2 2019

Shares 286,750 Value ($000) $61,126 Avg Close $206.92 Range $196.89 - $219.16

Q1 2019

Shares 300,412 Value ($000) $60,350 Avg Close $201.85 Range $191.04 - $209.40

Q4 2018

Shares 295,019 Value ($000) $60,237 Avg Close $208.87 Range $186.10 - $224.07

Q3 2018

Shares 280,663 Value ($000) $60,093 Avg Close $205.18 Range $185.72 - $223.00

Q2 2018

Shares 305,855 Value ($000) $57,087 Avg Close $194.92 Range $184.75 - $202.77

Q1 2018

Shares 289,109 Value ($000) $57,671 Avg Close $205.34 Range $189.30 - $217.62

Q4 2017

Shares 285,469 Value ($000) $56,586 Avg Close $189.88 Range $180.44 - $200.50

Q3 2017

Shares 262,350 Value ($000) $48,094 Avg Close $176.72 Range $168.00 - $184.00

Q2 2017

Shares 242,290 Value ($000) $41,037 Avg Close $166.33 Range $160.93 - $171.95

Q1 2017

Shares 238,656 Value ($000) $39,779 Avg Close $167.31 Range $158.61 - $177.86

Q4 2016

Shares 247,462 Value ($000) $40,331 Avg Close $153.96 Range $141.92 - $167.25

Q3 2016

Shares 259,060 Value ($000) $37,427 Avg Close $146.25 Range $140.95 - $151.05

Q2 2016

Shares 155,753 Value ($000) $22,551 Avg Close $142.96 Range $136.65 - $148.03

Q1 2016

Shares 140,185 Value ($000) $19,889 Avg Close $132.58 Range $123.55 - $143.40

Q4 2015

Shares 132,422 Value ($000) $17,485 Avg Close $134.20 Range $127.46 - $138.62

Q3 2015

Shares 127,564 Value ($000) $16,634 Avg Close $137.00 Range $125.50 - $144.69

Q2 2015

Shares 166,111 Value ($000) $22,609 Avg Close $142.63 Range $136.08 - $148.57

Q1 2015

Shares 144,305 Value ($000) $20,826 Avg Close $147.14 Range $142.50 - $151.69

Q4 2014

Shares 108,634 Value ($000) $16,311 Avg Close $144.37 Range $132.03 - $152.94

Q3 2014

Shares 114,894 Value ($000) $15,871 Avg Close $133.21 Range $122.72 - $142.45

Q2 2014

Shares 142,437 Value ($000) $18,027 Avg Close $126.57 Range $121.09 - $129.73

Q1 2014

Shares 135,191 Value ($000) $16,895 Avg Close $116.85 Range $108.12 - $125.91

Q4 2013

Shares 140,779 Value ($000) $16,690 Avg Close $115.63 Range $110.84 - $118.66

Q3 2013

Shares 138,562 Value ($000) $15,728 Avg Close $115.36 Range $110.72 - $119.30

Q2 2013

Shares 100,424 Value ($000) $11,240 Avg Close $110.02 Range $102.69 - $115.98

Q1 2013

Shares 83,938 Value ($000) $8,746 Avg Close $99.00 Range $91.29 - $104.48

Q4 2012

Shares 36,849 Value ($000) $3,305 Avg Close — Range —

Q3 2012

Shares 33,533 Value ($000) $2,958 Avg Close — Range —

Q2 2012

Shares 30,620 Value ($000) $2,552 Avg Close — Range —

Q1 2012

Shares 24,102 Value ($000) $1,956 Avg Close — Range —

Q4 2011

Shares 46,969 Value ($000) $3,584 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	341,895	$171,854	$497.53	$473.15 - $516.85
Q3 2025	332,632	$167,227	$484.36	$455.19 - $507.66
Q2 2025	312,884	$151,990	$507.86	$462.10 - $542.07
Q1 2025	288,416	$153,605	$486.15	$440.10 - $537.63
Q4 2024	277,835	$125,937	$461.73	$437.90 - $491.67
Q3 2024	259,704	$119,531	$442.18	$403.82 - $484.82
Q2 2024	248,940	$101,269	$408.62	$395.66 - $424.52
Q1 2024	229,396	$96,466	$393.34	$355.94 - $430.00
Q4 2023	226,547	$80,800	$350.99	$330.58 - $364.05
Q3 2023	220,255	$77,155	$354.77	$338.41 - $373.34
Q2 2023	215,643	$73,534	$326.37	$307.07 - $342.50
Q1 2023	208,898	$64,501	$308.18	$292.42 - $321.32
Q4 2022	193,150	$59,664	$296.98	$259.85 - $319.56
Q3 2022	201,884	$53,907	$284.56	$261.55 - $308.15
Q2 2022	178,957	$48,859	$313.72	$263.68 - $354.58
Q1 2022	179,932	$63,500	$323.46	$294.81 - $362.10
Q4 2021	183,541	$54,879	$286.41	$272.22 - $301.65
Q3 2021	212,456	$57,988	$280.86	$270.73 - $291.82
Q2 2021	229,487	$63,779	$279.44	$254.80 - $295.08
Q1 2021	265,560	$67,843	$242.84	$226.10 - $267.50
Q4 2020	283,975	$65,845	$220.20	$197.81 - $234.99
Q3 2020	287,539	$61,229	$204.56	$177.34 - $223.24
Q2 2020	242,484	$43,286	$182.62	$167.04 - $203.33
Q1 2020	319,795	$58,468	$212.55	$159.50 - $231.61
Q4 2019	288,545	$65,355	$217.17	$201.33 - $228.23
Q3 2019	288,494	$60,013	$206.04	$195.40 - $216.58
Q2 2019	286,750	$61,126	$206.92	$196.89 - $219.16
Q1 2019	300,412	$60,350	$201.85	$191.04 - $209.40
Q4 2018	295,019	$60,237	$208.87	$186.10 - $224.07
Q3 2018	280,663	$60,093	$205.18	$185.72 - $223.00
Q2 2018	305,855	$57,087	$194.92	$184.75 - $202.77
Q1 2018	289,109	$57,671	$205.34	$189.30 - $217.62
Q4 2017	285,469	$56,586	$189.88	$180.44 - $200.50
Q3 2017	262,350	$48,094	$176.72	$168.00 - $184.00
Q2 2017	242,290	$41,037	$166.33	$160.93 - $171.95
Q1 2017	238,656	$39,779	$167.31	$158.61 - $177.86
Q4 2016	247,462	$40,331	$153.96	$141.92 - $167.25
Q3 2016	259,060	$37,427	$146.25	$140.95 - $151.05
Q2 2016	155,753	$22,551	$142.96	$136.65 - $148.03
Q1 2016	140,185	$19,889	$132.58	$123.55 - $143.40
Q4 2015	132,422	$17,485	$134.20	$127.46 - $138.62
Q3 2015	127,564	$16,634	$137.00	$125.50 - $144.69
Q2 2015	166,111	$22,609	$142.63	$136.08 - $148.57
Q1 2015	144,305	$20,826	$147.14	$142.50 - $151.69
Q4 2014	108,634	$16,311	$144.37	$132.03 - $152.94
Q3 2014	114,894	$15,871	$133.21	$122.72 - $142.45
Q2 2014	142,437	$18,027	$126.57	$121.09 - $129.73
Q1 2014	135,191	$16,895	$116.85	$108.12 - $125.91
Q4 2013	140,779	$16,690	$115.63	$110.84 - $118.66
Q3 2013	138,562	$15,728	$115.36	$110.72 - $119.30
Q2 2013	100,424	$11,240	$110.02	$102.69 - $115.98
Q1 2013	83,938	$8,746	$99.00	$91.29 - $104.48
Q4 2012	36,849	$3,305	—	—
Q3 2012	33,533	$2,958	—	—
Q2 2012	30,620	$2,552	—	—
Q1 2012	24,102	$1,956	—	—
Q4 2011	46,969	$3,584	—	—