BIO RAD LABS INC

Ticker: BIO/B CUSIP: 090572108 Class: common

CSS LLC/IL's Holding History (CIK: 0001103646)

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

Q4 2025

Shares 1,038 Value ($000) $319 Avg Close $305.20 Range $284.88 - $321.12

Q3 2025

Shares 1,092 Value ($000) $309 Avg Close $253.45 Range $247.05 - $284.88

Q2 2025

Shares 1,092 Value ($000) $269 Avg Close $242.45 Range $225.29 - $250.08

Q1 2025

Shares 1,092 Value ($000) $266 Avg Close $310.65 Range $241.99 - $359.22

Q4 2024

Shares 1,341 Value ($000) $441 Avg Close $333.76 Range $325.60 - $337.08

Q3 2024

Shares 1,492 Value ($000) $499 Avg Close $312.88 Range $283.45 - $326.78

Q2 2024

Shares 1,607 Value ($000) $439 Avg Close $293.02 Range $279.91 - $338.55

Q1 2024

Shares 1,807 Value ($000) $625 Avg Close $326.66 Range $315.80 - $352.91

Q4 2023

Shares 1,811 Value ($000) $585 Avg Close $312.60 Range $271.00 - $355.06

Q3 2023

Shares 1,847 Value ($000) $662 Avg Close $382.72 Range $355.06 - $387.55

Q2 2023

Shares 1,847 Value ($000) $700 Avg Close $411.07 Range $371.10 - $467.95

Q1 2023

Shares 1,847 Value ($000) $885 Avg Close $414.25 Range $404.66 - $464.10

Q4 2022

Shares 1,847 Value ($000) $777 Avg Close $397.55 Range $355.36 - $456.10

Q3 2022

Shares 1,445 Value ($000) $603 Avg Close $498.61 Range $418.65 - $555.00

Q2 2022

Shares 1,445 Value ($000) $715 Avg Close $524.59 Range $465.00 - $594.00

Q1 2022

Shares 1,445 Value ($000) $814 Avg Close $612.68 Range $559.65 - $735.00

Q4 2021

Shares 7,375 Value ($000) $5,572 Avg Close $740.36 Range $719.15 - $784.40

Q3 2021

Shares 7,375 Value ($000) $5,501 Avg Close $737.36 Range $657.50 - $818.60

Q2 2021

Shares 7,375 Value ($000) $4,752 Avg Close $600.88 Range $579.38 - $640.00

Q1 2021

Shares 7,375 Value ($000) $4,212 Avg Close $600.65 Range $556.55 - $668.56

Q4 2020

Shares 7,375 Value ($000) $4,299 Avg Close $564.25 Range $508.00 - $642.05

Q3 2020

Shares 13,588 Value ($000) $7,004 Avg Close $497.71 Range $436.97 - $538.00

Q2 2020

Shares 13,588 Value ($000) $6,135 Avg Close $441.99 Range $344.70 - $475.29

Q1 2020

Shares 13,588 Value ($000) $4,763 Avg Close $364.62 Range $324.07 - $403.83

Q4 2019

Shares 13,588 Value ($000) $5,022 Avg Close $346.29 Range $321.42 - $372.77

Q3 2019

Shares 22,310 Value ($000) $7,597 Avg Close $327.84 Range $307.28 - $342.68

Q2 2019

Shares 22,310 Value ($000) $6,925 Avg Close $302.15 Range $287.85 - $310.33

Q1 2019

Shares 22,310 Value ($000) $6,760 Avg Close $267.99 Range $226.14 - $322.00

Q4 2018

Shares 22,310 Value ($000) $5,131 Avg Close $270.79 Range $220.93 - $297.67

Q3 2018

Shares 22,310 Value ($000) $6,977 Avg Close $306.12 Range $285.75 - $324.25

Q2 2018

Shares 22,310 Value ($000) $6,392 Avg Close $273.89 Range $249.85 - $296.20

Q1 2018

Shares 22,310 Value ($000) $5,598 Avg Close $251.72 Range $238.25 - $271.00

Q4 2017

Shares 22,310 Value ($000) $5,315 Avg Close $243.56 Range $218.30 - $261.55

Q3 2017

Shares 22,310 Value ($000) $5,021 Avg Close $225.25 Range $210.71 - $240.50

Q2 2017

Shares 22,310 Value ($000) $5,020 Avg Close $215.35 Range $199.80 - $226.10

Q1 2017

Shares 22,310 Value ($000) $4,458 Avg Close $190.64 Range $182.65 - $204.00

Q4 2016

Shares 22,310 Value ($000) $4,086 Avg Close $169.18 Range $160.33 - $183.90

Q3 2016

Shares 22,310 Value ($000) $3,626 Avg Close $151.63 Range $141.01 - $162.52

Q2 2016

Shares 22,310 Value ($000) $3,168 Avg Close $141.41 Range $135.03 - $149.04

Q1 2016

Shares 22,310 Value ($000) $3,012 Avg Close $131.92 Range $124.50 - $137.68

Q4 2015

Shares 22,310 Value ($000) $3,079 Avg Close $138.67 Range $134.93 - $141.77

Q3 2015

Shares 22,310 Value ($000) $2,963 Avg Close $143.85 Range $131.83 - $151.22

Q2 2015

Shares 22,310 Value ($000) $3,268 Avg Close $140.99 Range $133.00 - $146.50

Q1 2015

Shares 22,310 Value ($000) $3,012 Avg Close $123.28 Range $113.75 - $136.20

Q4 2014

Shares 22,310 Value ($000) $2,691 Avg Close $116.02 Range $108.79 - $121.56

Q3 2014

Shares 22,318 Value ($000) $2,446 Avg Close $118.65 Range $115.55 - $122.42

Q2 2014

Shares 22,318 Value ($000) $2,755 Avg Close $122.79 Range $118.35 - $128.71

Q1 2014

Shares 22,318 Value ($000) $2,856 Avg Close $128.35 Range $121.12 - $135.56

Q4 2013

Shares 22,318 Value ($000) $2,761 Avg Close $121.21 Range $115.59 - $124.28

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,038	$319	$305.20	$284.88 - $321.12
Q3 2025	1,092	$309	$253.45	$247.05 - $284.88
Q2 2025	1,092	$269	$242.45	$225.29 - $250.08
Q1 2025	1,092	$266	$310.65	$241.99 - $359.22
Q4 2024	1,341	$441	$333.76	$325.60 - $337.08
Q3 2024	1,492	$499	$312.88	$283.45 - $326.78
Q2 2024	1,607	$439	$293.02	$279.91 - $338.55
Q1 2024	1,807	$625	$326.66	$315.80 - $352.91
Q4 2023	1,811	$585	$312.60	$271.00 - $355.06
Q3 2023	1,847	$662	$382.72	$355.06 - $387.55
Q2 2023	1,847	$700	$411.07	$371.10 - $467.95
Q1 2023	1,847	$885	$414.25	$404.66 - $464.10
Q4 2022	1,847	$777	$397.55	$355.36 - $456.10
Q3 2022	1,445	$603	$498.61	$418.65 - $555.00
Q2 2022	1,445	$715	$524.59	$465.00 - $594.00
Q1 2022	1,445	$814	$612.68	$559.65 - $735.00
Q4 2021	7,375	$5,572	$740.36	$719.15 - $784.40
Q3 2021	7,375	$5,501	$737.36	$657.50 - $818.60
Q2 2021	7,375	$4,752	$600.88	$579.38 - $640.00
Q1 2021	7,375	$4,212	$600.65	$556.55 - $668.56
Q4 2020	7,375	$4,299	$564.25	$508.00 - $642.05
Q3 2020	13,588	$7,004	$497.71	$436.97 - $538.00
Q2 2020	13,588	$6,135	$441.99	$344.70 - $475.29
Q1 2020	13,588	$4,763	$364.62	$324.07 - $403.83
Q4 2019	13,588	$5,022	$346.29	$321.42 - $372.77
Q3 2019	22,310	$7,597	$327.84	$307.28 - $342.68
Q2 2019	22,310	$6,925	$302.15	$287.85 - $310.33
Q1 2019	22,310	$6,760	$267.99	$226.14 - $322.00
Q4 2018	22,310	$5,131	$270.79	$220.93 - $297.67
Q3 2018	22,310	$6,977	$306.12	$285.75 - $324.25
Q2 2018	22,310	$6,392	$273.89	$249.85 - $296.20
Q1 2018	22,310	$5,598	$251.72	$238.25 - $271.00
Q4 2017	22,310	$5,315	$243.56	$218.30 - $261.55
Q3 2017	22,310	$5,021	$225.25	$210.71 - $240.50
Q2 2017	22,310	$5,020	$215.35	$199.80 - $226.10
Q1 2017	22,310	$4,458	$190.64	$182.65 - $204.00
Q4 2016	22,310	$4,086	$169.18	$160.33 - $183.90
Q3 2016	22,310	$3,626	$151.63	$141.01 - $162.52
Q2 2016	22,310	$3,168	$141.41	$135.03 - $149.04
Q1 2016	22,310	$3,012	$131.92	$124.50 - $137.68
Q4 2015	22,310	$3,079	$138.67	$134.93 - $141.77
Q3 2015	22,310	$2,963	$143.85	$131.83 - $151.22
Q2 2015	22,310	$3,268	$140.99	$133.00 - $146.50
Q1 2015	22,310	$3,012	$123.28	$113.75 - $136.20
Q4 2014	22,310	$2,691	$116.02	$108.79 - $121.56
Q3 2014	22,318	$2,446	$118.65	$115.55 - $122.42
Q2 2014	22,318	$2,755	$122.79	$118.35 - $128.71
Q1 2014	22,318	$2,856	$128.35	$121.12 - $135.56
Q4 2013	22,318	$2,761	$121.21	$115.59 - $124.28