BUILDERS FIRSTSOURCE INC

Ticker: BLDR CUSIP: 12008R107 Class: EQTY

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

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

Q4 2025

Shares 83,711 Value ($000) $8,613 Avg Close $112.38 Range $94.35 - $130.42

Q3 2025

Shares 80,470 Value ($000) $9,757 Avg Close $132.67 Range $115.57 - $151.03

Q2 2025

Shares 68,523 Value ($000) $7,996 Avg Close $115.39 Range $102.60 - $131.32

Q1 2025

Shares 91,726 Value ($000) $11,460 Avg Close $145.49 Range $119.65 - $175.12

Q4 2024

Shares 112,491 Value ($000) $16,078 Avg Close $176.96 Range $141.03 - $201.53

Q3 2024

Shares 144,237 Value ($000) $28,018 Avg Close $165.82 Range $130.75 - $203.14

Q2 2024

Shares 117,626 Value ($000) $16,281 Avg Close $169.76 Range $133.58 - $210.00

Q1 2024

Shares 136,055 Value ($000) $28,453 Avg Close $184.81 Range $154.01 - $214.70

Q4 2023

Shares 118,676 Value ($000) $20,100 Avg Close $132.90 Range $105.24 - $171.03

Q3 2023

Shares 35,041 Value ($000) $4,465 Avg Close $137.97 Range $120.32 - $156.85

Q2 2023

Shares 36,511 Value ($000) $4,974 Avg Close $111.21 Range $84.78 - $138.53

Q1 2023

Shares 20,558 Value ($000) $1,827 Avg Close $79.22 Range $64.54 - $90.21

Q4 2022

Shares 22,809 Value ($000) $1,556 Avg Close $62.46 Range $53.79 - $70.00

Q3 2022

Shares 20,228 Value ($000) $1,316 Avg Close $62.52 Range $52.70 - $74.48

Q2 2022

Shares 37,409 Value ($000) $2,102 Avg Close $61.32 Range $48.91 - $71.60

Q1 2022

Shares 123,402 Value ($000) $8,404 Avg Close $72.59 Range $63.20 - $86.48

Q4 2021

Shares 37,351 Value ($000) $3,157 Avg Close $67.74 Range $51.33 - $86.20

Q3 2021

Shares 19,721 Value ($000) $1,072 Avg Close $48.84 Range $39.24 - $55.54

Q2 2021

Shares 104,470 Value ($000) $4,496 Avg Close $46.37 Range $41.23 - $53.99

Q1 2021

Shares 26,137 Value ($000) $1,237 Avg Close $42.57 Range $37.46 - $47.74

Q4 2020

Shares 132,591 Value ($000) $5,255 Avg Close $35.42 Range $29.73 - $42.84

Q3 2020

Shares 590,246 Value ($000) $19,725 Avg Close $27.14 Range $19.03 - $33.45

Q2 2020

Shares 647,090 Value ($000) $12,676 Avg Close $18.07 Range $10.58 - $24.65

Q1 2020

Shares 568,159 Value ($000) $6,557 Avg Close $22.59 Range $9.00 - $28.43

Q4 2019

Shares 470,221 Value ($000) $11,949 Avg Close $23.90 Range $19.61 - $26.07

Q3 2019

Shares 217,475 Value ($000) $4,474 Avg Close $18.64 Range $16.06 - $20.79

Q2 2019

Shares 91,924 Value ($000) $1,549 Avg Close $14.96 Range $13.30 - $17.00

Q1 2019

Shares 89,382 Value ($000) $1,192 Avg Close $13.14 Range $10.56 - $14.95

Q4 2018

Shares 94,986 Value ($000) $1,036 Avg Close $12.56 Range $10.15 - $14.83

Q3 2018

Shares 102,981 Value ($000) $1,512 Avg Close $16.94 Range $14.65 - $18.86

Q2 2018

Shares 90,485 Value ($000) $1,655 Avg Close $19.12 Range $17.74 - $20.79

Q1 2018

Shares 91,400 Value ($000) $1,813 Avg Close $21.18 Range $19.15 - $23.28

Q4 2017

Shares 94,526 Value ($000) $2,060 Avg Close $18.96 Range $16.52 - $22.08

Q3 2017

Shares 99,631 Value ($000) $1,793 Avg Close $16.13 Range $14.39 - $18.08

Q2 2017

Shares 106,931 Value ($000) $1,638 Avg Close $14.94 Range $13.33 - $16.50

Q1 2017

Shares 2,020 Value ($000) $31 Avg Close $12.93 Range $10.57 - $15.85

Q4 2016

Shares 337,279 Value ($000) $3,731 Avg Close $10.85 Range $9.04 - $12.28

Q3 2016

Shares 1,682,638 Value ($000) $19,367 Avg Close $12.59 Range $10.99 - $14.09

Q2 2016

Shares 1,841,751 Value ($000) $20,720 Avg Close $11.54 Range $10.15 - $12.77

Q1 2016

Shares 1,671,460 Value ($000) $18,837 Avg Close $8.66 Range $6.50 - $11.34

Q4 2015

Shares 1,769,572 Value ($000) $19,607 Avg Close $12.71 Range $10.02 - $15.72

Q3 2015

Shares 1,493,676 Value ($000) $18,940 Avg Close $14.20 Range $11.98 - $16.69

Q2 2015

Shares 2,067,664 Value ($000) $26,549 Avg Close $12.20 Range $6.54 - $14.24

Q2 2014

Shares 1,140 Value ($000) $9 Avg Close $7.79 Range $6.92 - $9.40

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	83,711	$8,613	$112.38	$94.35 - $130.42
Q3 2025	80,470	$9,757	$132.67	$115.57 - $151.03
Q2 2025	68,523	$7,996	$115.39	$102.60 - $131.32
Q1 2025	91,726	$11,460	$145.49	$119.65 - $175.12
Q4 2024	112,491	$16,078	$176.96	$141.03 - $201.53
Q3 2024	144,237	$28,018	$165.82	$130.75 - $203.14
Q2 2024	117,626	$16,281	$169.76	$133.58 - $210.00
Q1 2024	136,055	$28,453	$184.81	$154.01 - $214.70
Q4 2023	118,676	$20,100	$132.90	$105.24 - $171.03
Q3 2023	35,041	$4,465	$137.97	$120.32 - $156.85
Q2 2023	36,511	$4,974	$111.21	$84.78 - $138.53
Q1 2023	20,558	$1,827	$79.22	$64.54 - $90.21
Q4 2022	22,809	$1,556	$62.46	$53.79 - $70.00
Q3 2022	20,228	$1,316	$62.52	$52.70 - $74.48
Q2 2022	37,409	$2,102	$61.32	$48.91 - $71.60
Q1 2022	123,402	$8,404	$72.59	$63.20 - $86.48
Q4 2021	37,351	$3,157	$67.74	$51.33 - $86.20
Q3 2021	19,721	$1,072	$48.84	$39.24 - $55.54
Q2 2021	104,470	$4,496	$46.37	$41.23 - $53.99
Q1 2021	26,137	$1,237	$42.57	$37.46 - $47.74
Q4 2020	132,591	$5,255	$35.42	$29.73 - $42.84
Q3 2020	590,246	$19,725	$27.14	$19.03 - $33.45
Q2 2020	647,090	$12,676	$18.07	$10.58 - $24.65
Q1 2020	568,159	$6,557	$22.59	$9.00 - $28.43
Q4 2019	470,221	$11,949	$23.90	$19.61 - $26.07
Q3 2019	217,475	$4,474	$18.64	$16.06 - $20.79
Q2 2019	91,924	$1,549	$14.96	$13.30 - $17.00
Q1 2019	89,382	$1,192	$13.14	$10.56 - $14.95
Q4 2018	94,986	$1,036	$12.56	$10.15 - $14.83
Q3 2018	102,981	$1,512	$16.94	$14.65 - $18.86
Q2 2018	90,485	$1,655	$19.12	$17.74 - $20.79
Q1 2018	91,400	$1,813	$21.18	$19.15 - $23.28
Q4 2017	94,526	$2,060	$18.96	$16.52 - $22.08
Q3 2017	99,631	$1,793	$16.13	$14.39 - $18.08
Q2 2017	106,931	$1,638	$14.94	$13.33 - $16.50
Q1 2017	2,020	$31	$12.93	$10.57 - $15.85
Q4 2016	337,279	$3,731	$10.85	$9.04 - $12.28
Q3 2016	1,682,638	$19,367	$12.59	$10.99 - $14.09
Q2 2016	1,841,751	$20,720	$11.54	$10.15 - $12.77
Q1 2016	1,671,460	$18,837	$8.66	$6.50 - $11.34
Q4 2015	1,769,572	$19,607	$12.71	$10.02 - $15.72
Q3 2015	1,493,676	$18,940	$14.20	$11.98 - $16.69
Q2 2015	2,067,664	$26,549	$12.20	$6.54 - $14.24
Q2 2014	1,140	$9	$7.79	$6.92 - $9.40