Builders FirstSource, Inc.
DE ˙ DB ˙ US12008R1077
64,22 € ↓ -0,04 (-0,06%)
2026-06-03
DEL PRIS
SecurityDE:B1F / Builders FirstSource, Inc.
InstitutionCreative Planning
Latest Disclosed Ownership30,334 shares
Latest Disclosed Value $ 2,497,410
Creative Planning reports 17.10% increase in ownership of B1F / Builders FirstSource, Inc.

On May 12, 2026 - Creative Planning filed a 13F-HR form disclosing ownership of 30,334 shares of Builders FirstSource, Inc. (DE:B1F) valued at $2,094,866 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 25,905 shares of Builders FirstSource, Inc.. This represents a change in shares of 17.10% during the quarter. The current value of the position is $1,948,049 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.

Upgrade to unlock premium data and export to Excel .

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 30,334 4,429 17.10 2,497 -6.30 0.0017
2026-02-17 2025-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 25,905 3,930 17.88 2,665 0.04 0.0019
2025-11-14 2025-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 21,975 1,107 5.30 2,665 9.40 0.0020
2025-08-08 2025-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 20,868 -2,925 -12.29 2,435 -18.07 0.0021
2025-05-15 2025-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 23,793 -1,393 -5.53 2,973 -17.42 0.0028
2025-02-14 2024-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 25,186 12,223 94.29 3,600 43.22 0.0035
2024-10-11 2024-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 12,963 3,406 35.64 2,513 90.09 0.0025
2024-08-15 2024-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 9,557 -1,616 -14.46 1,323 -43.26 0.0014
2024-05-13 2024-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 11,173 -2,871 -20.44 2,330 -0.60 0.0026
2024-02-14 2023-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 14,044 1,965 16.27 2,345 55.95 0.0043
2023-11-16 2023-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 12,079 -650 -5.11 1,504 -13.17 0.0020
2023-07-21 2023-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 12,729 657 5.44 1,731 61.62 0.0023
2023-05-15 2023-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 12,072 7,238 149.73 1,072 242.17 0.0015
2023-02-10 2022-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 4,834 4,834 314 0.0005
2021-08-04 2021-06-30 13F CreativePlanning COM 12008R107 0 -5,188 -100.00 0 -100.00
2021-04-30 2021-03-31 13F CreativePlanning COM 12008R107 5,188 5,188 241 0.0005
2019-07-26 2019-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 0 -11,269 -100.00 0 -100.00
2019-04-24 2019-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 11,269 800 7.64 150 31.58 0.0005
2019-02-12 2018-12-31 13F/A-1 BUILDERS FIRSTSOURCE COM 12008R107 10,469 -11,320 -51.95 114 -64.37 0.0005
2019-02-01 2018-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 10,469 -11,320 114
2018-10-25 2018-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 21,789 1,835 9.20 320 -12.33 0.0012
2018-07-20 2018-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 19,954 5,722 40.21 365 29.43 0.0014
2018-04-18 2018-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 14,232 14,232 282 0.0011
2017-10-17 2017-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 0 -100 -100.00 0 -100.00
2017-07-12 2017-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 100 0 0.00 2 100.00 0.0000
2017-04-07 2017-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 100 -3,000 -96.77 1 -97.06 0.0000
2017-01-09 2016-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 3,100 0 0.00 34 -5.56 0.0002
2016-10-12 2016-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 3,100 664 27.26 36 33.33 0.0002
2016-07-12 2016-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 2,436 2,136 712.00 27 800.00 0.0002
2016-04-08 2016-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 300 -800 -72.73 3 -75.00 0.0000
2016-01-11 2015-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 1,100 -300 -21.43 12 -33.33 0.0001
2015-10-09 2015-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 1,400 1,400 0.00 18 0.0002
2015-07-09 2015-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 0 -3,100 -100.00 0 -100.00
2015-04-13 2015-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 3,100 3,100 0.00 21 0.0002
2015-01-29 2014-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 0 -26,300 -100.00 0 -100.00
2014-10-10 2014-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 26,300 16,200 160.40 143 88.16 0.0017
2014-08-20 2014-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 10,100 -4,900 -32.67 76 -13.64 0.0010
2013-10-10 2013-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 15,000 0 0.00 88 -2.22 0.0017
2013-07-09 2013-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 15,000 15,000 90 0.0021
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.