BUILDERS FIRSTSOURCE INC

Ticker: BLDR CUSIP: 12008R107 Class: EQTY

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

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

Q4 2025

Shares 166,179 Value ($000) $17,098 Avg Close $112.38 Range $94.35 - $130.42

Q3 2025

Shares 178,358 Value ($000) $21,626 Avg Close $132.67 Range $115.57 - $151.03

Q2 2025

Shares 189,197 Value ($000) $22,077 Avg Close $115.39 Range $102.60 - $131.32

Q1 2025

Shares 182,801 Value ($000) $22,839 Avg Close $145.49 Range $119.65 - $175.12

Q4 2024

Shares 183,043 Value ($000) $26,162 Avg Close $176.96 Range $141.03 - $201.53

Q3 2024

Shares 202,033 Value ($000) $39,166 Avg Close $165.82 Range $130.75 - $203.14

Q2 2024

Shares 199,809 Value ($000) $27,656 Avg Close $169.76 Range $133.58 - $210.00

Q1 2024

Shares 208,130 Value ($000) $43,406 Avg Close $184.81 Range $154.01 - $214.70

Q4 2023

Shares 205,871 Value ($000) $34,368 Avg Close $132.90 Range $105.24 - $171.03

Q3 2023

Shares 212,278 Value ($000) $26,426 Avg Close $137.97 Range $120.32 - $156.85

Q2 2023

Shares 224,306 Value ($000) $30,506 Avg Close $111.21 Range $84.78 - $138.53

Q1 2023

Shares 182,765 Value ($000) $16,226 Avg Close $79.22 Range $64.54 - $90.21

Q4 2022

Shares 194,220 Value ($000) $12,601 Avg Close $62.46 Range $53.79 - $70.00

Q3 2022

Shares 209,992 Value ($000) $12,373 Avg Close $62.52 Range $52.70 - $74.48

Q2 2022

Shares 237,335 Value ($000) $12,745 Avg Close $61.32 Range $48.91 - $71.60

Q1 2022

Shares 244,910 Value ($000) $15,806 Avg Close $72.59 Range $63.20 - $86.48

Q4 2021

Shares 270,401 Value ($000) $23,176 Avg Close $67.74 Range $51.33 - $86.20

Q3 2021

Shares 337,414 Value ($000) $17,458 Avg Close $48.84 Range $39.24 - $55.54

Q2 2021

Shares 348,799 Value ($000) $14,880 Avg Close $46.37 Range $41.23 - $53.99

Q1 2021

Shares 307,590 Value ($000) $14,263 Avg Close $42.57 Range $37.46 - $47.74

Q4 2020

Shares 175,060 Value ($000) $7,144 Avg Close $35.42 Range $29.73 - $42.84

Q3 2020

Shares 174,865 Value ($000) $5,704 Avg Close $27.14 Range $19.03 - $33.45

Q2 2020

Shares 173,264 Value ($000) $3,587 Avg Close $18.07 Range $10.58 - $24.65

Q1 2020

Shares 173,264 Value ($000) $2,119 Avg Close $22.59 Range $9.00 - $28.43

Q4 2019

Shares 174,122 Value ($000) $4,424 Avg Close $23.90 Range $19.61 - $26.07

Q3 2019

Shares 177,640 Value ($000) $3,655 Avg Close $18.64 Range $16.06 - $20.79

Q2 2019

Shares 175,518 Value ($000) $2,959 Avg Close $14.96 Range $13.30 - $17.00

Q1 2019

Shares 173,072 Value ($000) $2,309 Avg Close $13.14 Range $10.56 - $14.95

Q4 2018

Shares 176,921 Value ($000) $1,930 Avg Close $12.56 Range $10.15 - $14.83

Q3 2018

Shares 172,428 Value ($000) $2,531 Avg Close $16.94 Range $14.65 - $18.86

Q2 2018

Shares 172,992 Value ($000) $3,164 Avg Close $19.12 Range $17.74 - $20.79

Q1 2018

Shares 168,148 Value ($000) $3,336 Avg Close $21.18 Range $19.15 - $23.28

Q4 2017

Shares 174,043 Value ($000) $3,792 Avg Close $18.96 Range $16.52 - $22.08

Q3 2017

Shares 154,989 Value ($000) $2,788 Avg Close $16.13 Range $14.39 - $18.08

Q2 2017

Shares 171,451 Value ($000) $2,627 Avg Close $14.94 Range $13.33 - $16.50

Q1 2017

Shares 165,157 Value ($000) $2,461 Avg Close $12.93 Range $10.57 - $15.85

Q4 2016

Shares 172,957 Value ($000) $1,897 Avg Close $10.85 Range $9.04 - $12.28

Q3 2016

Shares 177,457 Value ($000) $2,043 Avg Close $12.59 Range $10.99 - $14.09

Q2 2016

Shares 175,857 Value ($000) $1,978 Avg Close $11.54 Range $10.15 - $12.77

Q1 2016

Shares 107,360 Value ($000) $1,210 Avg Close $8.66 Range $6.50 - $11.34

Q4 2015

Shares 93,926 Value ($000) $1,041 Avg Close $12.71 Range $10.02 - $15.72

Q3 2015

Shares 92,250 Value ($000) $1,170 Avg Close $14.20 Range $11.98 - $16.69

Q2 2015

Shares 84,650 Value ($000) $1,087 Avg Close $12.20 Range $6.54 - $14.24

Q1 2015

Shares 83,049 Value ($000) $554 Avg Close $6.25 Range $5.71 - $7.06

Q4 2014

Shares 84,649 Value ($000) $582 Avg Close $5.98 Range $4.85 - $6.98

Q3 2014

Shares 84,289 Value ($000) $459 Avg Close $6.51 Range $5.10 - $7.92

Q2 2014

Shares 83,410 Value ($000) $624 Avg Close $7.79 Range $6.92 - $9.40

Q1 2014

Shares 80,710 Value ($000) $735 Avg Close $8.12 Range $7.14 - $9.16

Q4 2013

Shares 80,710 Value ($000) $576 Avg Close $6.79 Range $5.55 - $7.94

Q3 2013

Shares 80,410 Value ($000) $473 Avg Close $5.97 Range $5.15 - $6.94

Q2 2013

Shares 77,832 Value ($000) $465 Avg Close $6.26 Range $5.00 - $7.33

Q1 2013

Shares 77,984 Value ($000) $457 Avg Close $5.99 Range $5.13 - $6.55

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	166,179	$17,098	$112.38	$94.35 - $130.42
Q3 2025	178,358	$21,626	$132.67	$115.57 - $151.03
Q2 2025	189,197	$22,077	$115.39	$102.60 - $131.32
Q1 2025	182,801	$22,839	$145.49	$119.65 - $175.12
Q4 2024	183,043	$26,162	$176.96	$141.03 - $201.53
Q3 2024	202,033	$39,166	$165.82	$130.75 - $203.14
Q2 2024	199,809	$27,656	$169.76	$133.58 - $210.00
Q1 2024	208,130	$43,406	$184.81	$154.01 - $214.70
Q4 2023	205,871	$34,368	$132.90	$105.24 - $171.03
Q3 2023	212,278	$26,426	$137.97	$120.32 - $156.85
Q2 2023	224,306	$30,506	$111.21	$84.78 - $138.53
Q1 2023	182,765	$16,226	$79.22	$64.54 - $90.21
Q4 2022	194,220	$12,601	$62.46	$53.79 - $70.00
Q3 2022	209,992	$12,373	$62.52	$52.70 - $74.48
Q2 2022	237,335	$12,745	$61.32	$48.91 - $71.60
Q1 2022	244,910	$15,806	$72.59	$63.20 - $86.48
Q4 2021	270,401	$23,176	$67.74	$51.33 - $86.20
Q3 2021	337,414	$17,458	$48.84	$39.24 - $55.54
Q2 2021	348,799	$14,880	$46.37	$41.23 - $53.99
Q1 2021	307,590	$14,263	$42.57	$37.46 - $47.74
Q4 2020	175,060	$7,144	$35.42	$29.73 - $42.84
Q3 2020	174,865	$5,704	$27.14	$19.03 - $33.45
Q2 2020	173,264	$3,587	$18.07	$10.58 - $24.65
Q1 2020	173,264	$2,119	$22.59	$9.00 - $28.43
Q4 2019	174,122	$4,424	$23.90	$19.61 - $26.07
Q3 2019	177,640	$3,655	$18.64	$16.06 - $20.79
Q2 2019	175,518	$2,959	$14.96	$13.30 - $17.00
Q1 2019	173,072	$2,309	$13.14	$10.56 - $14.95
Q4 2018	176,921	$1,930	$12.56	$10.15 - $14.83
Q3 2018	172,428	$2,531	$16.94	$14.65 - $18.86
Q2 2018	172,992	$3,164	$19.12	$17.74 - $20.79
Q1 2018	168,148	$3,336	$21.18	$19.15 - $23.28
Q4 2017	174,043	$3,792	$18.96	$16.52 - $22.08
Q3 2017	154,989	$2,788	$16.13	$14.39 - $18.08
Q2 2017	171,451	$2,627	$14.94	$13.33 - $16.50
Q1 2017	165,157	$2,461	$12.93	$10.57 - $15.85
Q4 2016	172,957	$1,897	$10.85	$9.04 - $12.28
Q3 2016	177,457	$2,043	$12.59	$10.99 - $14.09
Q2 2016	175,857	$1,978	$11.54	$10.15 - $12.77
Q1 2016	107,360	$1,210	$8.66	$6.50 - $11.34
Q4 2015	93,926	$1,041	$12.71	$10.02 - $15.72
Q3 2015	92,250	$1,170	$14.20	$11.98 - $16.69
Q2 2015	84,650	$1,087	$12.20	$6.54 - $14.24
Q1 2015	83,049	$554	$6.25	$5.71 - $7.06
Q4 2014	84,649	$582	$5.98	$4.85 - $6.98
Q3 2014	84,289	$459	$6.51	$5.10 - $7.92
Q2 2014	83,410	$624	$7.79	$6.92 - $9.40
Q1 2014	80,710	$735	$8.12	$7.14 - $9.16
Q4 2013	80,710	$576	$6.79	$5.55 - $7.94
Q3 2013	80,410	$473	$5.97	$5.15 - $6.94
Q2 2013	77,832	$465	$6.26	$5.00 - $7.33
Q1 2013	77,984	$457	$5.99	$5.13 - $6.55