BIO RAD LABS INC

Ticker: BIO CUSIP: 090572207 Class: COM

PRELUDE CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001387508)

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

Q4 2025

Shares 3,464 Value ($000) $1,050 Avg Close $312.04 Range $280.61 - $343.12

Q3 2025

Shares 16,733 Value ($000) $4,692 Avg Close $272.13 Range $237.63 - $308.44

Q2 2025

Shares 29,267 Value ($000) $7,063 Avg Close $236.40 Range $211.43 - $260.00

Q1 2025

Shares 30,137 Value ($000) $7,340 Avg Close $300.83 Range $235.84 - $373.69

Q4 2024

Shares 8,108 Value ($000) $2,664 Avg Close $339.43 Range $306.42 - $387.99

Q3 2024

Shares 9,225 Value ($000) $3,087 Avg Close $317.61 Range $262.12 - $353.09

Q2 2024

Shares 22,025 Value ($000) $6,015 Avg Close $290.85 Range $266.52 - $346.83

Q1 2024

Shares 53,523 Value ($000) $18,512 Avg Close $328.84 Range $302.65 - $364.24

Q4 2023

Shares 49,549 Value ($000) $15,999 Avg Close $313.43 Range $261.59 - $366.30

Q3 2023

Shares 40,755 Value ($000) $14,609 Avg Close $385.83 Range $349.27 - $431.79

Q2 2023

Shares 23,993 Value ($000) $9,096 Avg Close $406.95 Range $356.51 - $494.05

Q1 2023

Shares 14,516 Value ($000) $6,953 Avg Close $468.12 Range $415.04 - $509.62

Q4 2022

Shares 14,030 Value ($000) $5,899 Avg Close $403.63 Range $344.63 - $457.93

Q3 2022

Shares 4,200 Value ($000) $1,752 Avg Close $498.57 Range $406.24 - $572.70

Q2 2022

Shares 3,414 Value ($000) $1,690 Avg Close $520.81 Range $462.61 - $607.54

Q1 2021

Shares 529 Value ($000) $302 Avg Close $592.18 Range $545.00 - $689.00

Q2 2020

Shares 176 Value ($000) $79 Avg Close $441.30 Range $330.00 - $497.42

Q1 2020

Shares 163 Value ($000) $57 Avg Close $367.68 Range $309.38 - $413.02

Q4 2019

Shares 406 Value ($000) $150 Avg Close $352.55 Range $319.26 - $376.43

Q4 2018

Shares 1,040 Value ($000) $242 Avg Close $268.31 Range $220.05 - $315.00

Q3 2018

Shares 224 Value ($000) $70 Avg Close $310.39 Range $285.83 - $345.15

Q2 2018

Shares 3,053 Value ($000) $881 Avg Close $276.12 Range $240.01 - $304.36

Q1 2018

Shares 2,383 Value ($000) $596 Avg Close $254.62 Range $231.00 - $279.59

Q4 2017

Shares 7,222 Value ($000) $1,724 Avg Close $242.32 Range $214.44 - $273.87

Q3 2017

Shares 10,335 Value ($000) $2,297 Avg Close $225.03 Range $208.95 - $242.79

Q2 2017

Shares 10,896 Value ($000) $2,466 Avg Close $217.91 Range $198.25 - $230.40

Q1 2017

Shares 10,608 Value ($000) $2,115 Avg Close $192.61 Range $181.87 - $209.50

Q4 2016

Shares 7,187 Value ($000) $1,310 Avg Close $170.48 Range $154.89 - $184.89

Q3 2016

Shares 10,852 Value ($000) $1,778 Avg Close $151.78 Range $140.53 - $164.45

Q2 2016

Shares 224 Value ($000) $32 Avg Close $142.64 Range $135.02 - $150.00

Q1 2016

Shares 487 Value ($000) $67 Avg Close $131.28 Range $122.03 - $139.63

Q1 2015

Shares 526 Value ($000) $71 Avg Close $123.95 Range $112.51 - $137.23

Q2 2014

Shares 391 Value ($000) $47 Avg Close $122.10 Range $117.98 - $131.42

Q1 2014

Shares 210 Value ($000) $27 Avg Close $128.18 Range $120.43 - $134.13

Q4 2013

Shares 230 Value ($000) $28 Avg Close $121.86 Range $115.25 - $125.00

Q3 2013

Shares 160 Value ($000) $19 Avg Close $117.94 Range $111.49 - $126.98

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3,464	$1,050	$312.04	$280.61 - $343.12
Q3 2025	16,733	$4,692	$272.13	$237.63 - $308.44
Q2 2025	29,267	$7,063	$236.40	$211.43 - $260.00
Q1 2025	30,137	$7,340	$300.83	$235.84 - $373.69
Q4 2024	8,108	$2,664	$339.43	$306.42 - $387.99
Q3 2024	9,225	$3,087	$317.61	$262.12 - $353.09
Q2 2024	22,025	$6,015	$290.85	$266.52 - $346.83
Q1 2024	53,523	$18,512	$328.84	$302.65 - $364.24
Q4 2023	49,549	$15,999	$313.43	$261.59 - $366.30
Q3 2023	40,755	$14,609	$385.83	$349.27 - $431.79
Q2 2023	23,993	$9,096	$406.95	$356.51 - $494.05
Q1 2023	14,516	$6,953	$468.12	$415.04 - $509.62
Q4 2022	14,030	$5,899	$403.63	$344.63 - $457.93
Q3 2022	4,200	$1,752	$498.57	$406.24 - $572.70
Q2 2022	3,414	$1,690	$520.81	$462.61 - $607.54
Q1 2021	529	$302	$592.18	$545.00 - $689.00
Q2 2020	176	$79	$441.30	$330.00 - $497.42
Q1 2020	163	$57	$367.68	$309.38 - $413.02
Q4 2019	406	$150	$352.55	$319.26 - $376.43
Q4 2018	1,040	$242	$268.31	$220.05 - $315.00
Q3 2018	224	$70	$310.39	$285.83 - $345.15
Q2 2018	3,053	$881	$276.12	$240.01 - $304.36
Q1 2018	2,383	$596	$254.62	$231.00 - $279.59
Q4 2017	7,222	$1,724	$242.32	$214.44 - $273.87
Q3 2017	10,335	$2,297	$225.03	$208.95 - $242.79
Q2 2017	10,896	$2,466	$217.91	$198.25 - $230.40
Q1 2017	10,608	$2,115	$192.61	$181.87 - $209.50
Q4 2016	7,187	$1,310	$170.48	$154.89 - $184.89
Q3 2016	10,852	$1,778	$151.78	$140.53 - $164.45
Q2 2016	224	$32	$142.64	$135.02 - $150.00
Q1 2016	487	$67	$131.28	$122.03 - $139.63
Q1 2015	526	$71	$123.95	$112.51 - $137.23
Q2 2014	391	$47	$122.10	$117.98 - $131.42
Q1 2014	210	$27	$128.18	$120.43 - $134.13
Q4 2013	230	$28	$121.86	$115.25 - $125.00
Q3 2013	160	$19	$117.94	$111.49 - $126.98