Builders FirstSource, Inc.
DE ˙ DB ˙ US12008R1077
64,22 € ↓ -0,04 (-0,06%)
2026-06-03
AKTIENPREIS
SecurityDE:B1F / Builders FirstSource, Inc.
InstitutionAdvisory Services Network, LLC
Latest Disclosed Ownership1,380 shares
Latest Disclosed Value $ 113,616
Advisory Services Network, LLC reports 33.53% decrease in ownership of B1F / Builders FirstSource, Inc.

On May 15, 2026 - Advisory Services Network, LLC filed a 13F-HR form disclosing ownership of 1,380 shares of Builders FirstSource, Inc. (DE:B1F) valued at $95,303 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,076 shares of Builders FirstSource, Inc.. This represents a change in shares of -33.53% during the quarter. The current value of the position is $88,624 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)
2026-05-15 2026-03-31 13F BUILDERS FIRSTSOURCE INC COM Stock 12008R107 1,380 -696 -33.53 114 -46.95 0.0010
2026-02-17 2025-12-31 13F BUILDERS FIRSTSOURCE INC COM Stock 12008R107 2,076 -5,133 -71.20 214 -75.63 0.0030
2025-11-18 2025-09-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 7,209 -1,551 -17.71 874 -21.47 0.0128
2025-08-19 2025-06-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 8,760 3,879 79.47 1,114 82.76 0.0179
2025-05-15 2025-03-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 4,881 1,159 31.14 610 14.69 0.0117
2025-02-13 2024-12-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 3,722 3,722 532 0.0099
2024-08-13 2024-06-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 0 -5,521 -100.00 0 -100.00
2024-05-06 2024-03-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 5,521 2,902 110.81 1,151 163.39 0.0255
2024-02-09 2023-12-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 2,619 -1,014 -27.91 437 -3.32 0.0107
2023-11-14 2023-09-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 3,633 3,633 452 0.0121
2023-08-09 2023-06-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 0 -4,172 -100.00 0 -100.00
2023-05-17 2023-03-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 4,172 3,976 2,028.57 370 2,983.33 0.0103
2023-02-13 2022-12-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 196 196 13 0.0004
2022-08-02 2022-06-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 0 -4,931 -100.00 0 -100.00
2022-05-23 2022-03-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 4,931 1,190 31.81 318 -0.93 0.0094
2022-02-14 2021-12-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 3,741 3,741 321 0.0092
2021-11-05 2021-09-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 0 -2,472 -100.00 0 -100.00
2021-08-12 2021-06-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 2,472 2,472 105 0.0033
2021-05-24 2021-03-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 0 -1,238 -100.00 0 -100.00
2021-02-09 2020-12-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 1,238 100 8.79 51 37.84 0.0020
2020-11-16 2020-09-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 1,138 1,138 -8.08 37 -27.45 0.0017
2020-08-10 2020-06-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 0 -3,163 -100.00 0 -100.00
2020-05-15 2020-03-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 3,163 193 6.50 39 -48.00 0.0026
2020-02-04 2019-12-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 2,970 1,320 80.00 75 167.86 0.0039
2019-11-04 2019-09-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 1,650 0 0.00 28 0.00 0.0017
2019-08-01 2019-06-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 1,650 -450 -21.43 28 0.00 0.0017
2019-05-20 2019-03-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 2,100 -100 -4.55 28 16.67 0.0020
2019-02-15 2018-12-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 2,200 -500 -18.52 24 -40.00 0.0021
2018-11-02 2018-09-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 2,700 0 0.00 40 -13.04 0.0029
2018-07-27 2018-06-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 2,700 750 38.46 46 17.95 0.0035
2018-04-23 2018-03-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 1,950 200 11.43 39 2.63 0.0031
2018-02-08 2017-12-31 13F BUILDERS FIRSTSOURCE Stock 12008R107 1,750 0 0.00 38 22.58 0.0033
2017-10-12 2017-09-30 13F BUILDERS FIRSTSOURCE Stock 12008R107 1,750 -1,000 -36.36 31 -26.19 0.0035
2017-08-17 2017-06-30 13F BUILDERS FIRSTSOURCE INC COM Stock 12008R107 2,750 2,750 42 0.0055
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.