BERKSHIRE HATHAWAY INC DEL

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

GREAT LAKES ADVISORS, LLC's Holding History (CIK: 0001078013)

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

Q4 2025

Shares 262,410 Value ($000) $131,902 Avg Close $497.53 Range $473.15 - $516.85

Q3 2025

Shares 268,328 Value ($000) $134,900 Avg Close $484.36 Range $455.19 - $507.66

Q2 2025

Shares 273,553 Value ($000) $132,885 Avg Close $507.86 Range $462.10 - $542.07

Q1 2025

Shares 278,517 Value ($000) $148,344 Avg Close $486.15 Range $440.10 - $537.63

Q4 2024

Shares 277,167 Value ($000) $125,634 Avg Close $461.73 Range $437.90 - $491.67

Q3 2024

Shares 283,958 Value ($000) $130,695 Avg Close $442.18 Range $403.82 - $484.82

Q2 2024

Shares 295,715 Value ($000) $120,297 Avg Close $408.62 Range $395.66 - $424.52

Q1 2024

Shares 318,959 Value ($000) $134,129 Avg Close $393.34 Range $355.94 - $430.00

Q4 2023

Shares 324,241 Value ($000) $115,644 Avg Close $350.99 Range $330.58 - $364.05

Q3 2023

Shares 342,963 Value ($000) $120,140 Avg Close $354.77 Range $338.41 - $373.34

Q2 2023

Shares 293,940 Value ($000) $100,234 Avg Close $326.37 Range $307.07 - $342.50

Q1 2023

Shares 326,248 Value ($000) $100,736 Avg Close $308.18 Range $292.42 - $321.32

Q4 2022

Shares 206,359 Value ($000) $6,496 Avg Close $296.98 Range $259.85 - $319.56

Q3 2022

Shares 213,192 Value ($000) $56,926 Avg Close $284.56 Range $261.55 - $308.15

Q2 2022

Shares 225,869 Value ($000) $61,667 Avg Close $313.72 Range $263.68 - $354.58

Q1 2022

Shares 267,875 Value ($000) $94,536 Avg Close $323.46 Range $294.81 - $362.10

Q4 2021

Shares 257,175 Value ($000) $76,895 Avg Close $286.41 Range $272.22 - $301.65

Q3 2021

Shares 272,679 Value ($000) $74,425 Avg Close $280.86 Range $270.73 - $291.82

Q2 2021

Shares 276,991 Value ($000) $76,981 Avg Close $279.44 Range $254.80 - $295.08

Q1 2021

Shares 272,208 Value ($000) $69,541 Avg Close $242.84 Range $226.10 - $267.50

Q4 2020

Shares 282,467 Value ($000) $65,495 Avg Close $220.20 Range $197.81 - $234.99

Q3 2020

Shares 280,579 Value ($000) $59,747 Avg Close $204.56 Range $177.34 - $223.24

Q2 2020

Shares 292,075 Value ($000) $52,138 Avg Close $182.62 Range $167.04 - $203.33

Q1 2020

Shares 279,453 Value ($000) $51,093 Avg Close $212.55 Range $159.50 - $231.61

Q4 2019

Shares 223,523 Value ($000) $50,627 Avg Close $217.17 Range $201.33 - $228.23

Q3 2019

Shares 261,595 Value ($000) $54,417 Avg Close $206.04 Range $195.40 - $216.58

Q2 2019

Shares 302,634 Value ($000) $64,512 Avg Close $206.92 Range $196.89 - $219.16

Q1 2019

Shares 339,069 Value ($000) $68,115 Avg Close $201.85 Range $191.04 - $209.40

Q4 2018

Shares 404,661 Value ($000) $82,624 Avg Close $208.87 Range $186.10 - $224.07

Q3 2018

Shares 384,114 Value ($000) $82,243 Avg Close $205.18 Range $185.72 - $223.00

Q2 2018

Shares 343,307 Value ($000) $64,078 Avg Close $194.92 Range $184.75 - $202.77

Q1 2018

Shares 397,522 Value ($000) $71,636 Avg Close $205.34 Range $189.30 - $217.62

Q4 2017

Shares 496,967 Value ($000) $98,510 Avg Close $189.88 Range $180.44 - $200.50

Q3 2017

Shares 492,669 Value ($000) $90,316 Avg Close $176.72 Range $168.00 - $184.00

Q2 2017

Shares 529,741 Value ($000) $89,723 Avg Close $166.33 Range $160.93 - $171.95

Q1 2017

Shares 461,283 Value ($000) $76,884 Avg Close $167.31 Range $158.61 - $177.86

Q4 2016

Shares 472,171 Value ($000) $76,954 Avg Close $153.96 Range $141.92 - $167.25

Q3 2016

Shares 480,487 Value ($000) $69,417 Avg Close $146.25 Range $140.95 - $151.05

Q2 2016

Shares 476,229 Value ($000) $68,954 Avg Close $142.96 Range $136.65 - $148.03

Q1 2016

Shares 430,926 Value ($000) $61,141 Avg Close $132.58 Range $123.55 - $143.40

Q4 2015

Shares 425,650 Value ($000) $56,203 Avg Close $134.20 Range $127.46 - $138.62

Q3 2015

Shares 481,898 Value ($000) $62,958 Avg Close $137.00 Range $125.50 - $144.69

Q2 2015

Shares 483,469 Value ($000) $65,806 Avg Close $142.63 Range $136.08 - $148.57

Q1 2015

Shares 411,182 Value ($000) $59,341 Avg Close $147.14 Range $142.50 - $151.69

Q4 2014

Shares 425,645 Value ($000) $63,911 Avg Close $144.37 Range $132.03 - $152.94

Q3 2014

Shares 384,255 Value ($000) $53,078 Avg Close $133.21 Range $122.72 - $142.45

Q2 2014

Shares 387,933 Value ($000) $49,098 Avg Close $126.57 Range $121.09 - $129.73

Q1 2014

Shares 362,702 Value ($000) $45,327 Avg Close $116.85 Range $108.12 - $125.91

Q4 2013

Shares 344,134 Value ($000) $40,800 Avg Close $115.63 Range $110.84 - $118.66

Q3 2013

Shares 366,192 Value ($000) $41,566 Avg Close $115.36 Range $110.72 - $119.30

Q2 2013

Shares 330,230 Value ($000) $36,959 Avg Close $110.02 Range $102.69 - $115.98

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	262,410	$131,902	$497.53	$473.15 - $516.85
Q3 2025	268,328	$134,900	$484.36	$455.19 - $507.66
Q2 2025	273,553	$132,885	$507.86	$462.10 - $542.07
Q1 2025	278,517	$148,344	$486.15	$440.10 - $537.63
Q4 2024	277,167	$125,634	$461.73	$437.90 - $491.67
Q3 2024	283,958	$130,695	$442.18	$403.82 - $484.82
Q2 2024	295,715	$120,297	$408.62	$395.66 - $424.52
Q1 2024	318,959	$134,129	$393.34	$355.94 - $430.00
Q4 2023	324,241	$115,644	$350.99	$330.58 - $364.05
Q3 2023	342,963	$120,140	$354.77	$338.41 - $373.34
Q2 2023	293,940	$100,234	$326.37	$307.07 - $342.50
Q1 2023	326,248	$100,736	$308.18	$292.42 - $321.32
Q4 2022	206,359	$6,496	$296.98	$259.85 - $319.56
Q3 2022	213,192	$56,926	$284.56	$261.55 - $308.15
Q2 2022	225,869	$61,667	$313.72	$263.68 - $354.58
Q1 2022	267,875	$94,536	$323.46	$294.81 - $362.10
Q4 2021	257,175	$76,895	$286.41	$272.22 - $301.65
Q3 2021	272,679	$74,425	$280.86	$270.73 - $291.82
Q2 2021	276,991	$76,981	$279.44	$254.80 - $295.08
Q1 2021	272,208	$69,541	$242.84	$226.10 - $267.50
Q4 2020	282,467	$65,495	$220.20	$197.81 - $234.99
Q3 2020	280,579	$59,747	$204.56	$177.34 - $223.24
Q2 2020	292,075	$52,138	$182.62	$167.04 - $203.33
Q1 2020	279,453	$51,093	$212.55	$159.50 - $231.61
Q4 2019	223,523	$50,627	$217.17	$201.33 - $228.23
Q3 2019	261,595	$54,417	$206.04	$195.40 - $216.58
Q2 2019	302,634	$64,512	$206.92	$196.89 - $219.16
Q1 2019	339,069	$68,115	$201.85	$191.04 - $209.40
Q4 2018	404,661	$82,624	$208.87	$186.10 - $224.07
Q3 2018	384,114	$82,243	$205.18	$185.72 - $223.00
Q2 2018	343,307	$64,078	$194.92	$184.75 - $202.77
Q1 2018	397,522	$71,636	$205.34	$189.30 - $217.62
Q4 2017	496,967	$98,510	$189.88	$180.44 - $200.50
Q3 2017	492,669	$90,316	$176.72	$168.00 - $184.00
Q2 2017	529,741	$89,723	$166.33	$160.93 - $171.95
Q1 2017	461,283	$76,884	$167.31	$158.61 - $177.86
Q4 2016	472,171	$76,954	$153.96	$141.92 - $167.25
Q3 2016	480,487	$69,417	$146.25	$140.95 - $151.05
Q2 2016	476,229	$68,954	$142.96	$136.65 - $148.03
Q1 2016	430,926	$61,141	$132.58	$123.55 - $143.40
Q4 2015	425,650	$56,203	$134.20	$127.46 - $138.62
Q3 2015	481,898	$62,958	$137.00	$125.50 - $144.69
Q2 2015	483,469	$65,806	$142.63	$136.08 - $148.57
Q1 2015	411,182	$59,341	$147.14	$142.50 - $151.69
Q4 2014	425,645	$63,911	$144.37	$132.03 - $152.94
Q3 2014	384,255	$53,078	$133.21	$122.72 - $142.45
Q2 2014	387,933	$49,098	$126.57	$121.09 - $129.73
Q1 2014	362,702	$45,327	$116.85	$108.12 - $125.91
Q4 2013	344,134	$40,800	$115.63	$110.84 - $118.66
Q3 2013	366,192	$41,566	$115.36	$110.72 - $119.30
Q2 2013	330,230	$36,959	$110.02	$102.69 - $115.98