빌더스 FirstSource, Inc.
DE ˙ DB ˙ US12008R1077
€64.22 ↓ -0.04 (-0.06%)
2026-06-03
주가
SecurityDE:B1F / Builders FirstSource, Inc.
InstitutionCwm, Llc
Latest Disclosed Ownership2,016 shares
Latest Disclosed Value $ 166,014
Cwm, Llc reports 11.50% decrease in ownership of B1F / Builders FirstSource, Inc.

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 2,016 shares of Builders FirstSource, Inc. (DE:B1F) valued at $139,225 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 2,278 shares of Builders FirstSource, Inc.. The current value of the position is $129,468 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)
2026-05-14 2026-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 2,016 -262 -11.50 166 0.0004
2026-01-26 2025-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 2,278 -476 -17.28 0 0.0006
2025-10-15 2025-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 2,754 442 19.12 0 0.0010
2025-07-25 2025-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 2,312 -622 -21.20 0 0.0010
2025-05-01 2025-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 2,934 -1,766 -37.57 0 0.0015
2025-02-04 2024-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 4,700 -1,587 -25.24 1 -100.00 0.0028
2024-10-08 2024-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 6,287 3,146 100.16 1 0.0052
2024-07-10 2024-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 3,141 155 5.19 0 0.0021
2024-04-05 2024-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 2,986 78 2.68 1 0.0030
2024-02-01 2023-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 2,908 378 14.94 0 0.0026
2023-10-11 2023-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 2,530 -104 -3.95 0 0.0019
2023-08-03 2023-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 2,634 336 14.62 0 0.0022
2023-05-01 2023-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 2,298 25 1.10 0 0.0014
2023-02-01 2022-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 2,273 203 9.81 0 -100.00 0.0011
2022-10-27 2022-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 2,070 1,084 109.94 122 130.19 0.0010
2022-07-28 2022-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 986 409 70.88 53 43.24 0.0004
2022-04-21 2022-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 577 419 265.19 37 164.29 0.0003
2022-01-31 2021-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 158 138 690.00 14 1,300.00 0.0001
2021-09-15 2021-06-30 13F/A-1 BUILDERS FIRSTSOURCE COM 12008R107 20 0 0.00 1 0.00 0.0000
2021-07-29 2021-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 20 0 1 0.0000
2021-09-15 2021-03-31 13F/A-1 BUILDERS FIRSTSOURCE COM 12008R107 20 0 0.00 1 0.00 0.0000
2021-04-27 2021-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 20 0 1 0.0000
2021-09-15 2020-12-31 13F/A-1 BUILDERS FIRSTSOURCE COM 12008R107 20 0 0.00 1 0.00 0.0000
2021-01-27 2020-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 20 0 1 0.0000
2021-09-15 2020-09-30 13F/A-1 BUILDERS FIRSTSOURCE COM 12008R107 20 0 0.00 1 0.00 0.0000
2020-10-19 2020-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 20 0 1 0.0000
2021-09-15 2020-06-30 13F/A-1 BUILDERS FIRSTSOURCE COM 12008R107 20 0 0.00 1 0.00 0.0000
2020-07-22 2020-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 20 0 0
2021-09-15 2020-03-31 13F/A-1 BUILDERS FIRSTSOURCE COM 12008R107 20 0 0.00 1 0.00 0.0000
2020-04-28 2020-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 20 0 0
2021-09-14 2019-12-31 13F/A-1 BUILDERS FIRSTSOURCE COM 12008R107 20 0 0.00 1 0.00 0.0000
2020-01-27 2019-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 20 0 1 0.0000
2021-09-14 2019-09-30 13F/A-1 BUILDERS FIRSTSOURCE COM 12008R107 20 0 0.00 1 0.00 0.0000
2021-09-14 2019-06-30 13F/A-1 BUILDERS FIRSTSOURCE COM 12008R107 20 0 0.00 1 0.00 0.0000
2021-09-02 2019-03-31 13F/A-1 BUILDERS FIRSTSOURCE COM 12008R107 20 20 1 0.0000
2019-01-25 2018-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 0 -23 -100.00 0 -100.00 0.0000
2018-10-29 2018-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 23 0 0.00 0 0.0000
2018-07-31 2018-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 23 0 0.00 0 0.0000
2018-04-26 2018-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 23 0 0.00 0 -100.00
2018-01-16 2017-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 23 0 0.00 1 0.0000
2017-10-16 2017-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 23 0 0.00 0 0.0000
2017-07-17 2017-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 23 0 0.00 0 0.0000
2017-04-17 2017-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 23 23 0 0.0000
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.