Builders FirstSource, Inc.
DE ˙ DB ˙ US12008R1077
64,26 € ↓ -1,00 (-1,53%)
2026-06-02
DEL PRIS
SecurityDE:B1F / Builders FirstSource, Inc.
InstitutionInvesco Ltd.
Latest Disclosed Ownership2,604,322 shares
Latest Disclosed Value $ 214,413,830
Invesco Ltd. reports 23.89% increase in ownership of B1F / Builders FirstSource, Inc.

On May 12, 2026 - Invesco Ltd. filed a 13F-HR form disclosing ownership of 2,604,322 shares of Builders FirstSource, Inc. (DE:B1F) valued at $179,854,477 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 19, 2026 disclosing 2,102,080 shares of Builders FirstSource, Inc.. This represents a change in shares of 23.89% during the quarter. The current value of the position is $167,353,732 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 2,604,322 502,242 23.89 214,414 -0.86 0.0041
2026-02-19 2025-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 2,102,080 556,210 35.98 216,283 15.39 0.0332
2025-11-13 2025-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 1,545,870 -229,477 -12.93 187,437 -9.52 0.0295
2025-08-13 2025-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 1,775,347 -744,114 -29.53 207,165 -34.19 0.0352
2025-05-12 2025-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 2,519,461 265,873 11.80 314,781 -2.27 0.0596
2025-02-13 2024-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 2,253,588 26,314 1.18 322,105 -25.40 0.0596
2024-11-12 2024-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 2,227,274 -23,023 -1.02 431,779 38.63 0.0834
2024-08-13 2024-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 2,250,297 419,488 22.91 311,464 -18.43 0.0659
2024-05-14 2024-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 1,830,809 -160,086 -8.04 381,815 14.88 0.0820
2024-02-13 2023-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 1,990,895 34,786 1.78 332,360 36.48 0.0791
2023-11-13 2023-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 1,956,109 874,268 80.81 243,516 65.51 0.0656
2023-08-11 2023-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 1,081,841 259,748 31.60 147,130 101.59 0.0386
2023-05-12 2023-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 822,093 -593,635 -41.93 72,985 -20.54 0.0204
2023-02-13 2022-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 1,415,728 451,080 46.76 91,852 61.61 0.0269
2022-11-14 2022-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 964,648 -291,080 -23.18 56,837 -15.71 0.0183
2022-08-15 2022-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 1,255,728 -533,296 -29.81 67,433 -41.60 0.0204
2022-05-16 2022-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 1,789,024 -299,383 -14.34 115,462 -35.50 0.0295
2022-02-14 2021-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 2,088,407 -1,125,412 -35.02 178,997 7.65 0.0431
2021-11-15 2021-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 3,213,819 -184,819 -5.44 166,284 14.69 0.0421
2021-08-17 2021-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 3,398,638 -97,945 -2.80 144,987 -10.58 0.0357
2021-05-17 2021-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 3,496,583 329,357 10.40 162,136 25.44 0.0433
2021-02-16 2020-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 3,167,226 -665,314 -17.36 129,255 3.39 0.0376
2020-11-16 2020-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 3,832,540 352,444 10.13 125,017 73.55 0.0423
2020-08-14 2020-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 3,480,096 2,556,777 276.91 72,037 537.95 0.0258
2020-05-15 2020-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 923,319 317,652 52.45 11,292 -26.63 0.0048
2020-02-14 2019-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 605,667 -1,108,884 -64.67 15,390 -56.37 0.0048
2019-11-14 2019-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 1,714,551 -1,180,914 -40.78 35,277 -27.74 0.0092
2019-08-14 2019-06-30 13F/A-1 BUILDERS FIRSTSOURCE COM 12008R107 2,895,465 -372,743 -11.41 48,818 11.97 0.0126
2019-08-14 2019-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 2,895,465 -529,921 48,818
2019-05-15 2019-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 3,268,208 -645,560 -16.49 43,598 2.10 0.0147
2019-02-14 2018-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 3,913,768 74,376 1.94 42,700 -24.24 0.0163
2018-11-14 2018-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 3,839,392 -435,619 -10.19 56,362 -27.92 0.0177
2018-08-14 2018-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 4,275,011 -1,083,230 -20.22 78,190 -26.45 0.0259
2018-05-15 2018-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 5,358,241 1,081,490 25.29 106,307 14.08 0.0397
2018-02-14 2017-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 4,276,751 381,996 9.81 93,190 33.00 0.0336
2017-11-14 2017-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 3,894,755 20,179 0.52 70,067 18.04 0.0259
2017-08-14 2017-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 3,874,576 3,759,862 3,277.60 59,359 3,373.32 0.0185
2017-05-15 2017-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 114,714 -24,214 -17.43 1,709 12.14 0.0006
2017-02-14 2016-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 138,928 -2,487 -1.76 1,524 -6.39 0.0005
2016-11-14 2016-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 141,415 17,225 13.87 1,628 16.54 0.0006
2016-08-15 2016-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 124,190 -214,343 -63.32 1,397 -63.38 0.0005
2016-05-16 2016-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 338,533 87,783 35.01 3,815 37.33 0.0016
2016-02-16 2015-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 250,750 -98,501 -28.20 2,778 -37.28 0.0011
2015-11-16 2015-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 349,251 155,817 80.55 4,429 78.30 0.0019
2015-08-14 2015-06-30 13F BUILDERS FIRSTSOURCE COMMON 12008R107 193,434 160,630 489.67 2,484 1,034.25 0.0010
2015-05-15 2015-03-31 13F BUILDERS FIRSTSOURCE COMMON 12008R107 32,804 9,011 37.87 219 34.36 0.0001
2015-02-13 2014-12-31 13F BUILDERS FIRSTSOURCE COMMON 12008R107 23,793 1,499 6.72 163 33.61 0.0001
2014-11-14 2014-09-30 13F BUILDERS FIRSTSOURCE COMMON 12008R107 22,294 1,495 7.19 122 -21.79 0.0000
2014-08-14 2014-06-30 13F BUILDERS FIRSTSOURCE COMMON 12008R107 20,799 0 0.00 156 -17.46 0.0001
2014-05-15 2014-03-31 13F BUILDERS FIRSTSOURCE COMMON 12008R107 20,799 -5,691 -21.48 189 0.53 0.0001
2014-02-13 2013-12-31 13F BUILDERS FIRSTSOURCE COMMON 12008R107 26,490 1,852 7.52 188 29.66 0.0001
2013-11-13 2013-09-30 13F BUILDERS FIRSTSOURCE COMMON 12008R107 24,638 -113,240 -82.13 145 -82.40 0.0001
2013-08-14 2013-06-30 13F BUILDERS FIRSTSOURCE COMMON 12008R107 137,878 137,878 824 0.0004
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.