BIO RAD LABS INC

Ticker: BIO CUSIP: 090572207 Class: COM

BANK OF MONTREAL /CAN/'s Holding History (CIK: 0000927971)

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

Q4 2025

Shares 7,938 Value ($000) $2,405 Avg Close $312.04 Range $280.61 - $343.12

Q3 2025

Shares 8,609 Value ($000) $2,414 Avg Close $272.13 Range $237.63 - $308.44

Q2 2025

Shares 8,949 Value ($000) $2,160 Avg Close $236.40 Range $211.43 - $260.00

Q1 2025

Shares 9,018 Value ($000) $2,196 Avg Close $300.83 Range $235.84 - $373.69

Q4 2024

Shares 9,162 Value ($000) $3,010 Avg Close $339.43 Range $306.42 - $387.99

Q3 2024

Shares 9,432 Value ($000) $3,129 Avg Close $317.61 Range $262.12 - $353.09

Q2 2024

Shares 32,622 Value ($000) $9,397 Avg Close $290.85 Range $266.52 - $346.83

Q1 2024

Shares 33,011 Value ($000) $11,433 Avg Close $328.84 Range $302.65 - $364.24

Q4 2023

Shares 32,467 Value ($000) $10,587 Avg Close $313.43 Range $261.59 - $366.30

Q3 2023

Shares 28,018 Value ($000) $10,749 Avg Close $385.83 Range $349.27 - $431.79

Q2 2023

Shares 33,279 Value ($000) $12,702 Avg Close $406.95 Range $356.51 - $494.05

Q1 2023

Shares 23,015 Value ($000) $11,050 Avg Close $468.12 Range $415.04 - $509.62

Q4 2022

Shares 69,058 Value ($000) $29,268 Avg Close $403.63 Range $344.63 - $457.93

Q3 2022

Shares 23,896 Value ($000) $10,651 Avg Close $498.57 Range $406.24 - $572.70

Q2 2022

Shares 51,984 Value ($000) $26,598 Avg Close $520.81 Range $462.61 - $607.54

Q1 2022

Shares 38,902 Value ($000) $22,573 Avg Close $602.81 Range $524.19 - $752.17

Q4 2021

Shares 26,589 Value ($000) $20,198 Avg Close $748.36 Range $703.67 - $798.97

Q3 2021

Shares 31,774 Value ($000) $25,069 Avg Close $749.10 Range $644.34 - $832.70

Q2 2021

Shares 64,007 Value ($000) $41,408 Avg Close $608.62 Range $569.46 - $657.79

Q1 2021

Shares 28,064 Value ($000) $16,620 Avg Close $592.18 Range $545.00 - $689.00

Q4 2020

Shares 37,862 Value ($000) $23,314 Avg Close $569.50 Range $507.22 - $648.39

Q3 2020

Shares 29,590 Value ($000) $15,783 Avg Close $506.50 Range $443.80 - $540.06

Q2 2020

Shares 18,896 Value ($000) $9,032 Avg Close $441.30 Range $330.00 - $497.42

Q1 2020

Shares 12,428 Value ($000) $4,484 Avg Close $367.68 Range $309.38 - $413.02

Q4 2019

Shares 20,989 Value ($000) $7,767 Avg Close $352.55 Range $319.26 - $376.43

Q3 2019

Shares 8,562 Value ($000) $2,848 Avg Close $326.21 Range $303.82 - $348.39

Q2 2019

Shares 9,480 Value ($000) $2,963 Avg Close $299.43 Range $281.66 - $319.99

Q1 2019

Shares 9,708 Value ($000) $2,967 Avg Close $269.86 Range $223.89 - $323.95

Q4 2018

Shares 11,858 Value ($000) $2,754 Avg Close $268.31 Range $220.05 - $315.00

Q3 2018

Shares 12,834 Value ($000) $4,018 Avg Close $310.39 Range $285.83 - $345.15

Q2 2018

Shares 14,661 Value ($000) $4,230 Avg Close $276.12 Range $240.01 - $304.36

Q1 2018

Shares 17,320 Value ($000) $4,332 Avg Close $254.62 Range $231.00 - $279.59

Q4 2017

Shares 18,201 Value ($000) $4,343 Avg Close $242.32 Range $214.44 - $273.87

Q3 2017

Shares 16,140 Value ($000) $3,586 Avg Close $225.03 Range $208.95 - $242.79

Q2 2017

Shares 15,218 Value ($000) $3,444 Avg Close $217.91 Range $198.25 - $230.40

Q1 2017

Shares 3,731 Value ($000) $744 Avg Close $192.61 Range $181.87 - $209.50

Q4 2016

Shares 3,903 Value ($000) $677 Avg Close $170.48 Range $154.89 - $184.89

Q3 2016

Shares 3,914 Value ($000) $641 Avg Close $151.78 Range $140.53 - $164.45

Q2 2016

Shares 3,914 Value ($000) $560 Avg Close $142.64 Range $135.02 - $150.00

Q1 2016

Shares 3,911 Value ($000) $535 Avg Close $131.28 Range $122.03 - $139.63

Q4 2015

Shares 10,021 Value ($000) $1,390 Avg Close $138.61 Range $132.49 - $142.48

Q3 2015

Shares 8,858 Value ($000) $1,190 Avg Close $143.92 Range $131.25 - $152.38

Q2 2015

Shares 42,195 Value ($000) $6,355 Avg Close $143.07 Range $133.38 - $151.97

Q1 2015

Shares 10,216 Value ($000) $1,380 Avg Close $123.95 Range $112.51 - $137.23

Q4 2014

Shares 9,952 Value ($000) $1,200 Avg Close $115.09 Range $102.71 - $122.93

Q3 2014

Shares 9,952 Value ($000) $1,128 Avg Close $118.49 Range $113.37 - $122.73

Q2 2014

Shares 8,480 Value ($000) $1,015 Avg Close $122.10 Range $117.98 - $131.42

Q1 2014

Shares 8,491 Value ($000) $1,088 Avg Close $128.18 Range $120.43 - $134.13

Q4 2013

Shares 8,472 Value ($000) $1,047 Avg Close $121.86 Range $115.25 - $125.00

Q3 2013

Shares 8,637 Value ($000) $1,015 Avg Close $117.94 Range $111.49 - $126.98

Q2 2013

Shares 7,247 Value ($000) $813 Avg Close $117.30 Range $110.02 - $127.17

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	7,938	$2,405	$312.04	$280.61 - $343.12
Q3 2025	8,609	$2,414	$272.13	$237.63 - $308.44
Q2 2025	8,949	$2,160	$236.40	$211.43 - $260.00
Q1 2025	9,018	$2,196	$300.83	$235.84 - $373.69
Q4 2024	9,162	$3,010	$339.43	$306.42 - $387.99
Q3 2024	9,432	$3,129	$317.61	$262.12 - $353.09
Q2 2024	32,622	$9,397	$290.85	$266.52 - $346.83
Q1 2024	33,011	$11,433	$328.84	$302.65 - $364.24
Q4 2023	32,467	$10,587	$313.43	$261.59 - $366.30
Q3 2023	28,018	$10,749	$385.83	$349.27 - $431.79
Q2 2023	33,279	$12,702	$406.95	$356.51 - $494.05
Q1 2023	23,015	$11,050	$468.12	$415.04 - $509.62
Q4 2022	69,058	$29,268	$403.63	$344.63 - $457.93
Q3 2022	23,896	$10,651	$498.57	$406.24 - $572.70
Q2 2022	51,984	$26,598	$520.81	$462.61 - $607.54
Q1 2022	38,902	$22,573	$602.81	$524.19 - $752.17
Q4 2021	26,589	$20,198	$748.36	$703.67 - $798.97
Q3 2021	31,774	$25,069	$749.10	$644.34 - $832.70
Q2 2021	64,007	$41,408	$608.62	$569.46 - $657.79
Q1 2021	28,064	$16,620	$592.18	$545.00 - $689.00
Q4 2020	37,862	$23,314	$569.50	$507.22 - $648.39
Q3 2020	29,590	$15,783	$506.50	$443.80 - $540.06
Q2 2020	18,896	$9,032	$441.30	$330.00 - $497.42
Q1 2020	12,428	$4,484	$367.68	$309.38 - $413.02
Q4 2019	20,989	$7,767	$352.55	$319.26 - $376.43
Q3 2019	8,562	$2,848	$326.21	$303.82 - $348.39
Q2 2019	9,480	$2,963	$299.43	$281.66 - $319.99
Q1 2019	9,708	$2,967	$269.86	$223.89 - $323.95
Q4 2018	11,858	$2,754	$268.31	$220.05 - $315.00
Q3 2018	12,834	$4,018	$310.39	$285.83 - $345.15
Q2 2018	14,661	$4,230	$276.12	$240.01 - $304.36
Q1 2018	17,320	$4,332	$254.62	$231.00 - $279.59
Q4 2017	18,201	$4,343	$242.32	$214.44 - $273.87
Q3 2017	16,140	$3,586	$225.03	$208.95 - $242.79
Q2 2017	15,218	$3,444	$217.91	$198.25 - $230.40
Q1 2017	3,731	$744	$192.61	$181.87 - $209.50
Q4 2016	3,903	$677	$170.48	$154.89 - $184.89
Q3 2016	3,914	$641	$151.78	$140.53 - $164.45
Q2 2016	3,914	$560	$142.64	$135.02 - $150.00
Q1 2016	3,911	$535	$131.28	$122.03 - $139.63
Q4 2015	10,021	$1,390	$138.61	$132.49 - $142.48
Q3 2015	8,858	$1,190	$143.92	$131.25 - $152.38
Q2 2015	42,195	$6,355	$143.07	$133.38 - $151.97
Q1 2015	10,216	$1,380	$123.95	$112.51 - $137.23
Q4 2014	9,952	$1,200	$115.09	$102.71 - $122.93
Q3 2014	9,952	$1,128	$118.49	$113.37 - $122.73
Q2 2014	8,480	$1,015	$122.10	$117.98 - $131.42
Q1 2014	8,491	$1,088	$128.18	$120.43 - $134.13
Q4 2013	8,472	$1,047	$121.86	$115.25 - $125.00
Q3 2013	8,637	$1,015	$117.94	$111.49 - $126.98
Q2 2013	7,247	$813	$117.30	$110.02 - $127.17