BIO RAD LABS INC

Ticker: BIO CUSIP: 090572207 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q4 2025

Shares 17,850 Value ($000) $5,408 Avg Close $312.04 Range $280.61 - $343.12

Q3 2025

Shares 17,922 Value ($000) $5,025 Avg Close $272.13 Range $237.63 - $308.44

Q2 2025

Shares 17,921 Value ($000) $4,325 Avg Close $236.40 Range $211.43 - $260.00

Q1 2025

Shares 26,204 Value ($000) $6,382 Avg Close $300.83 Range $235.84 - $373.69

Q4 2024

Shares 25,897 Value ($000) $8,507 Avg Close $339.43 Range $306.42 - $387.99

Q3 2024

Shares 30,578 Value ($000) $10,231 Avg Close $317.61 Range $262.12 - $353.09

Q2 2024

Shares 30,990 Value ($000) $8,464 Avg Close $290.85 Range $266.52 - $346.83

Q1 2024

Shares 32,398 Value ($000) $11,205 Avg Close $328.84 Range $302.65 - $364.24

Q4 2023

Shares 32,267 Value ($000) $10,419 Avg Close $313.43 Range $261.59 - $366.30

Q3 2023

Shares 33,103 Value ($000) $11,866 Avg Close $385.83 Range $349.27 - $431.79

Q2 2023

Shares 34,542 Value ($000) $13,096 Avg Close $406.95 Range $356.51 - $494.05

Q1 2023

Shares 35,783 Value ($000) $17,141 Avg Close $468.12 Range $415.04 - $509.62

Q4 2022

Shares 36,032 Value ($000) $15,151 Avg Close $403.63 Range $344.63 - $457.93

Q3 2022

Shares 36,518 Value ($000) $15,233 Avg Close $498.57 Range $406.24 - $572.70

Q2 2022

Shares 36,843 Value ($000) $18,237 Avg Close $520.81 Range $462.61 - $607.54

Q1 2022

Shares 36,414 Value ($000) $20,509 Avg Close $602.81 Range $524.19 - $752.17

Q4 2021

Shares 38,448 Value ($000) $29,050 Avg Close $748.36 Range $703.67 - $798.97

Q3 2021

Shares 37,341 Value ($000) $27,855 Avg Close $749.10 Range $644.34 - $832.70

Q2 2021

Shares 36,935 Value ($000) $23,797 Avg Close $608.62 Range $569.46 - $657.79

Q1 2021

Shares 41,209 Value ($000) $23,537 Avg Close $592.18 Range $545.00 - $689.00

Q4 2020

Shares 37,957 Value ($000) $22,127 Avg Close $569.50 Range $507.22 - $648.39

Q3 2020

Shares 37,402 Value ($000) $19,279 Avg Close $506.50 Range $443.80 - $540.06

Q2 2020

Shares 36,698 Value ($000) $16,569 Avg Close $441.30 Range $330.00 - $497.42

Q1 2020

Shares 36,744 Value ($000) $12,881 Avg Close $367.68 Range $309.38 - $413.02

Q4 2019

Shares 34,246 Value ($000) $12,672 Avg Close $352.55 Range $319.26 - $376.43

Q3 2019

Shares 33,857 Value ($000) $11,266 Avg Close $326.21 Range $303.82 - $348.39

Q2 2019

Shares 33,765 Value ($000) $10,555 Avg Close $299.43 Range $281.66 - $319.99

Q1 2019

Shares 33,468 Value ($000) $10,230 Avg Close $269.86 Range $223.89 - $323.95

Q4 2018

Shares 34,232 Value ($000) $7,949 Avg Close $268.31 Range $220.05 - $315.00

Q3 2018

Shares 34,497 Value ($000) $10,797 Avg Close $310.39 Range $285.83 - $345.15

Q2 2018

Shares 34,598 Value ($000) $9,983 Avg Close $276.12 Range $240.01 - $304.36

Q1 2018

Shares 34,143 Value ($000) $8,538 Avg Close $254.62 Range $231.00 - $279.59

Q4 2017

Shares 35,249 Value ($000) $8,413 Avg Close $242.32 Range $214.44 - $273.87

Q3 2017

Shares 35,043 Value ($000) $7,787 Avg Close $225.03 Range $208.95 - $242.79

Q2 2017

Shares 38,683 Value ($000) $8,754 Avg Close $217.91 Range $198.25 - $230.40

Q1 2017

Shares 42,591 Value ($000) $8,490 Avg Close $192.61 Range $181.87 - $209.50

Q4 2016

Shares 44,391 Value ($000) $8,092 Avg Close $170.48 Range $154.89 - $184.89

Q3 2016

Shares 45,491 Value ($000) $7,452 Avg Close $151.78 Range $140.53 - $164.45

Q2 2016

Shares 45,191 Value ($000) $6,463 Avg Close $142.64 Range $135.02 - $150.00

Q1 2016

Shares 45,091 Value ($000) $6,165 Avg Close $131.28 Range $122.03 - $139.63

Q4 2015

Shares 39,485 Value ($000) $5,475 Avg Close $138.61 Range $132.49 - $142.48

Q3 2015

Shares 38,835 Value ($000) $5,216 Avg Close $143.92 Range $131.25 - $152.38

Q2 2015

Shares 37,731 Value ($000) $5,683 Avg Close $143.07 Range $133.38 - $151.97

Q1 2015

Shares 39,263 Value ($000) $5,308 Avg Close $123.95 Range $112.51 - $137.23

Q4 2014

Shares 39,851 Value ($000) $4,804 Avg Close $115.09 Range $102.71 - $122.93

Q3 2014

Shares 39,481 Value ($000) $4,477 Avg Close $118.49 Range $113.37 - $122.73

Q2 2014

Shares 37,861 Value ($000) $4,532 Avg Close $122.10 Range $117.98 - $131.42

Q1 2014

Shares 37,261 Value ($000) $4,774 Avg Close $128.18 Range $120.43 - $134.13

Q4 2013

Shares 37,061 Value ($000) $4,581 Avg Close $121.86 Range $115.25 - $125.00

Q3 2013

Shares 36,861 Value ($000) $4,333 Avg Close $117.94 Range $111.49 - $126.98

Q2 2013

Shares 35,686 Value ($000) $4,004 Avg Close $117.30 Range $110.02 - $127.17

Q1 2013

Shares 35,236 Value ($000) $4,440 Avg Close $117.51 Range $106.10 - $126.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	17,850	$5,408	$312.04	$280.61 - $343.12
Q3 2025	17,922	$5,025	$272.13	$237.63 - $308.44
Q2 2025	17,921	$4,325	$236.40	$211.43 - $260.00
Q1 2025	26,204	$6,382	$300.83	$235.84 - $373.69
Q4 2024	25,897	$8,507	$339.43	$306.42 - $387.99
Q3 2024	30,578	$10,231	$317.61	$262.12 - $353.09
Q2 2024	30,990	$8,464	$290.85	$266.52 - $346.83
Q1 2024	32,398	$11,205	$328.84	$302.65 - $364.24
Q4 2023	32,267	$10,419	$313.43	$261.59 - $366.30
Q3 2023	33,103	$11,866	$385.83	$349.27 - $431.79
Q2 2023	34,542	$13,096	$406.95	$356.51 - $494.05
Q1 2023	35,783	$17,141	$468.12	$415.04 - $509.62
Q4 2022	36,032	$15,151	$403.63	$344.63 - $457.93
Q3 2022	36,518	$15,233	$498.57	$406.24 - $572.70
Q2 2022	36,843	$18,237	$520.81	$462.61 - $607.54
Q1 2022	36,414	$20,509	$602.81	$524.19 - $752.17
Q4 2021	38,448	$29,050	$748.36	$703.67 - $798.97
Q3 2021	37,341	$27,855	$749.10	$644.34 - $832.70
Q2 2021	36,935	$23,797	$608.62	$569.46 - $657.79
Q1 2021	41,209	$23,537	$592.18	$545.00 - $689.00
Q4 2020	37,957	$22,127	$569.50	$507.22 - $648.39
Q3 2020	37,402	$19,279	$506.50	$443.80 - $540.06
Q2 2020	36,698	$16,569	$441.30	$330.00 - $497.42
Q1 2020	36,744	$12,881	$367.68	$309.38 - $413.02
Q4 2019	34,246	$12,672	$352.55	$319.26 - $376.43
Q3 2019	33,857	$11,266	$326.21	$303.82 - $348.39
Q2 2019	33,765	$10,555	$299.43	$281.66 - $319.99
Q1 2019	33,468	$10,230	$269.86	$223.89 - $323.95
Q4 2018	34,232	$7,949	$268.31	$220.05 - $315.00
Q3 2018	34,497	$10,797	$310.39	$285.83 - $345.15
Q2 2018	34,598	$9,983	$276.12	$240.01 - $304.36
Q1 2018	34,143	$8,538	$254.62	$231.00 - $279.59
Q4 2017	35,249	$8,413	$242.32	$214.44 - $273.87
Q3 2017	35,043	$7,787	$225.03	$208.95 - $242.79
Q2 2017	38,683	$8,754	$217.91	$198.25 - $230.40
Q1 2017	42,591	$8,490	$192.61	$181.87 - $209.50
Q4 2016	44,391	$8,092	$170.48	$154.89 - $184.89
Q3 2016	45,491	$7,452	$151.78	$140.53 - $164.45
Q2 2016	45,191	$6,463	$142.64	$135.02 - $150.00
Q1 2016	45,091	$6,165	$131.28	$122.03 - $139.63
Q4 2015	39,485	$5,475	$138.61	$132.49 - $142.48
Q3 2015	38,835	$5,216	$143.92	$131.25 - $152.38
Q2 2015	37,731	$5,683	$143.07	$133.38 - $151.97
Q1 2015	39,263	$5,308	$123.95	$112.51 - $137.23
Q4 2014	39,851	$4,804	$115.09	$102.71 - $122.93
Q3 2014	39,481	$4,477	$118.49	$113.37 - $122.73
Q2 2014	37,861	$4,532	$122.10	$117.98 - $131.42
Q1 2014	37,261	$4,774	$128.18	$120.43 - $134.13
Q4 2013	37,061	$4,581	$121.86	$115.25 - $125.00
Q3 2013	36,861	$4,333	$117.94	$111.49 - $126.98
Q2 2013	35,686	$4,004	$117.30	$110.02 - $127.17
Q1 2013	35,236	$4,440	$117.51	$106.10 - $126.50