Builders FirstSource, Inc.
DE ˙ DB ˙ US12008R1077
64,22 € ↓ -0,04 (-0,06%)
2026-06-03
AKTIENPREIS
SecurityDE:B1F / Builders FirstSource, Inc.
InstitutionStifel Financial Corp
Latest Disclosed Ownership277,202 shares
Latest Disclosed Value $ 22,822,252
Stifel Financial Corp reports 23.44% increase in ownership of B1F / Builders FirstSource, Inc.

On May 12, 2026 - Stifel Financial Corp filed a 13F-HR form disclosing ownership of 277,202 shares of Builders FirstSource, Inc. (DE:B1F) valued at $19,143,570 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 224,565 shares of Builders FirstSource, Inc.. This represents a change in shares of 23.44% during the quarter. The current value of the position is $17,801,912 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 277,202 52,637 23.44 22,822 -1.22 0.0049
2026-02-13 2025-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 224,565 -2,744 -1.21 23,105 -16.17 0.0208
2025-11-12 2025-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 227,309 15,981 7.56 27,562 11.77 0.0252
2025-08-14 2025-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 211,328 12,627 6.35 24,660 -0.67 0.0240
2025-05-14 2025-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 198,701 23,950 13.71 24,826 -0.60 0.0264
2025-02-13 2024-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 174,751 23,705 15.69 24,978 -14.70 0.0260
2024-11-14 2024-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 151,046 38,254 33.92 29,282 87.57 0.0307
2024-08-13 2024-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 112,792 28,302 33.50 15,612 -11.40 0.0176
2024-05-14 2024-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 84,490 2,322 2.83 17,620 28.45 0.0201
2024-02-12 2023-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 82,168 -3,320 -3.88 13,717 28.89 0.0173
2023-11-13 2023-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 85,488 13,768 19.20 10,642 9.12 0.0150
2023-08-14 2023-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 71,720 -2,956 -3.96 9,754 47.13 0.0133
2023-05-12 2023-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 74,676 -6,777 -8.32 6,630 25.45 0.0095
2023-02-13 2022-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 81,453 -23,362 -22.29 5,285 -14.44 0.0079
2022-11-14 2022-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 104,815 3,838 3.80 6,176 13.89 0.0101
2022-08-15 2022-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 100,977 -27,394 -21.34 5,423 -34.54 0.0085
2022-05-13 2022-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 128,371 31,194 32.10 8,285 -0.53 0.0113
2022-02-14 2021-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 97,177 25,368 35.33 8,329 124.20 0.0110
2021-11-15 2021-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 71,809 -14,496 -16.80 3,715 0.90 0.0054
2021-08-13 2021-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 86,305 14,637 20.42 3,682 10.80 0.0055
2021-05-14 2021-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 71,668 21,220 42.06 3,323 61.47 0.0055
2021-02-12 2020-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 50,448 442 0.88 2,058 26.18 0.0037
2020-11-16 2020-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 50,006 -34,441 -40.78 1,631 -6.75 0.0034
2020-08-14 2020-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 84,447 11,490 15.75 1,749 95.86 0.0040
2020-05-14 2020-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 72,957 -20,483 -21.92 893 -62.46 0.0025
2020-02-13 2019-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 93,440 20,920 28.85 2,379 59.77 0.0050
2019-11-19 2019-09-30 13F/A-1 BUILDERS FIRSTSOURCE COM 12008R107 72,520 -7,424 -9.29 1,489 10.71 0.0038
2019-11-13 2019-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 72,670 -7,274 1,492 836.3408
2019-08-14 2019-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 79,944 -14,607 -15.45 1,345 6.92 0.0035
2019-05-14 2019-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 94,551 -118 -0.12 1,258 22.61 0.0036
2019-02-13 2018-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 94,669 -480,964 -83.55 1,026 -87.88 0.0033
2018-11-13 2018-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 575,633 -39,131 -6.37 8,467 -24.85 0.0243
2018-08-14 2018-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 614,764 19,740 3.32 11,267 -4.94 0.0346
2018-05-11 2018-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 595,024 477,272 405.32 11,853 361.39 0.0374
2018-02-14 2017-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 117,752 -9,619 -7.55 2,569 12.33 0.0081
2017-11-13 2017-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 127,371 4,738 3.86 2,287 21.52 0.0079
2017-08-14 2017-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 122,633 -3,617 -2.86 1,882 0.16 0.0070
2017-05-10 2017-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 126,250 -724 -0.57 1,879 35.37 0.0073
2017-02-16 2016-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 126,974 58,049 84.22 1,388 74.37 0.0059
2016-11-15 2016-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 68,925 14,775 27.29 796 30.71 0.0036
2016-08-17 2016-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 54,150 -13,860 -20.38 609 -20.50 0.0028
2016-05-16 2016-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 68,010 17,112 33.62 766 35.82 0.0041
2016-03-21 2015-12-31 13F/A-2 BUILDERS FIRSTSOURCE COM 12008R107 50,898 33,234 188.15 564 151.79 0.0029
2016-02-26 2015-12-31 13F/A-1 BUILDERS FIRSTSOURCE COM 12008R107 50,898 0 564 0.0029
2016-02-16 2015-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 50,935 619
2015-11-16 2015-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 17,664 17,664 224 0.0013
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.