Builders FirstSource, Inc.
US ˙ NYSE ˙ US12008R1077

SecurityBLDR / Builders FirstSource, Inc.
InstitutionOppenheimer & Co Inc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Oppenheimer & Co Inc closes position in BLDR / Builders FirstSource, Inc.

On April 23, 2026 - Oppenheimer & Co Inc filed a 13F-HR form disclosing ownership of 0 shares of Builders FirstSource, Inc. (US:BLDR) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 6,864 shares of Builders FirstSource, Inc.. The current value of the position is $0 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)
2026-04-23 2026-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 0 -100.00 0
2026-02-02 2025-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 6,864 -9,975 -59.24 706 -65.41 0.0100
2025-11-06 2025-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 16,839 1,417 9.19 2,042 13.45 0.0249
2025-07-31 2025-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 15,422 -1,168 -7.04 1,800 -13.18 0.0238
2025-04-23 2025-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 16,590 -363 -2.14 2,073 -14.49 0.0313
2025-02-05 2024-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 16,953 -10,250 -37.68 2,423 -54.05 0.0362
2024-11-05 2024-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 27,203 721 2.72 5,274 43.87 0.0804
2024-08-08 2024-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 26,482 4,814 22.22 3,665 -18.88 0.0582
2024-05-07 2024-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 21,668 12,325 131.92 4,519 189.80 0.0749
2024-02-13 2023-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 9,343 4,209 81.98 1,560 143.97 0.0287
2023-11-08 2023-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 5,134 -1,858 -26.57 639 -32.74 0.0132
2023-08-03 2023-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 6,992 159 2.33 951 56.77 0.0190
2023-05-10 2023-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 6,833 859 14.38 607 56.59 0.0129
2023-02-08 2022-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 5,974 -1,989 -24.98 388 -17.48 0.0088
2022-11-14 2022-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 7,963 -4,529 -36.26 469 -30.10 0.0110
2022-08-08 2022-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 12,492 -74,735 -85.68 671 -88.08 0.0144
2022-05-12 2022-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 87,227 -3,331 -3.68 5,630 -27.47 0.1015
2022-02-02 2021-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 90,558 -5,660 -5.88 7,762 55.93 0.1357
2021-11-12 2021-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 96,218 -70,142 -42.16 4,978 -29.86 0.0932
2021-08-03 2021-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 166,360 52,872 46.59 7,097 34.85 0.1272
2021-05-10 2021-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 113,488 107,913 1,935.66 5,263 2,208.33 0.1050
2021-02-11 2020-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 5,575 5,575 228 0.0048
2018-10-26 2018-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 0 -20,504 -100.00 0 -100.00
2018-08-10 2018-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 20,504 -13,084 -38.95 375 -43.78 0.0102
2018-05-01 2018-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 33,588 -17,300 -34.00 667 -39.86 0.0171
2018-02-07 2017-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 50,888 23,695 87.14 1,109 126.79 0.0285
2017-11-09 2017-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 27,193 27,193 489 0.0131
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.