Builders FirstSource, Inc.
US ˙ NYSE ˙ US12008R1077

SecurityBLDR / Builders FirstSource, Inc.
InstitutionWolverine Trading, Llc
Latest Disclosed Ownership30,410 shares
Latest Disclosed Value $ 3,637,340
Wolverine Trading, Llc ownership in BLDR / Builders FirstSource, Inc.

On November 14, 2025 - Wolverine Trading, Llc filed a 13F-HR form disclosing ownership of 30,410 shares of Builders FirstSource, Inc. (US:BLDR) valued at $3,687,212 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 18, 2025 disclosing 22,606 shares of Builders FirstSource, Inc.. This represents a change in shares of 34.52% during the quarter. The current value of the position is $2,258,247 USD.

Wolverine Trading, Llc has a history of taking positions in derivatives of the underlying security (BLDR) in the form of stock options. The firm currently holds call options representing 117,900 of underlying shares valued at $14,102,019 USD and put options representing 71,900 of underlying shares valued at $8,599,959 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

BLDR / Builders FirstSource, Inc. Historical Put/Call Ratio
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)
2025-11-14 2025-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 30,410 7,804 34.52 3,637 37.50 0.0026
2025-08-18 2025-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 22,606 12,982 134.89 2,645 120.78 0.0027
2025-05-15 2025-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 9,624 -14,335 -59.83 1,198 -65.12 0.0014
2025-02-14 2024-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 23,959 9,306 63.51 3,435 20.70 0.0032
2024-11-14 2024-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 14,653 -30 -0.20 2,846 40.06 0.0030
2024-08-14 2024-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 14,683 12,890 718.91 2,032 444.77 0.0021
2024-05-15 2024-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 1,793 1,793 374 0.0004
2023-11-15 2023-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 0 -15,234 -100.00 0 -100.00
2023-08-23 2023-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 15,234 6,097 66.73 2,074 0.0025
2023-05-15 2023-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 9,137 1,656 22.14 1 -100.00 0.0012
2023-02-14 2022-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 7,481 37 0.50 485 12.01 0.0007
2022-11-14 2022-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 7,444 971 15.00 433 26.98 0.0007
2022-08-15 2022-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 6,473 -26,255 -80.22 341 -84.67 0.0006
2022-05-16 2022-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 32,728 -4,900 -13.02 2,224 -29.69 0.0029
2022-02-14 2021-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 37,628 11,387 43.39 3,163 123.53 0.0037
2021-11-12 2021-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 26,241 117 0.45 1,415 27.25 0.0016
2021-08-06 2021-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 26,124 10,034 62.36 1,112 50.47 0.0017
2021-05-14 2021-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 16,090 10,912 210.74 739 237.44 0.0011
2021-02-12 2020-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 5,178 -12,208 -70.22 219 -60.61 0.0003
2020-11-13 2020-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 17,386 17,386 556 0.0013
2020-05-11 2020-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 0 -20,183 -100.00 0 -100.00
2020-02-12 2019-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 20,183 7,760 62.46 513 102.77 0.0013
2019-11-14 2019-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 12,423 12,423 253 0.0007
2019-05-15 2019-03-31 13F BUILDERS FIRSTSOURCE COM 12008R107 0 -10,328 -100.00 0 -100.00
2019-02-13 2018-12-31 13F BUILDERS FIRSTSOURCE COM 12008R107 10,328 -9,954 -49.08 113 -62.08 0.0003
2018-11-14 2018-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 20,282 20,282 298 0.0007
2017-11-15 2017-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 0 -12,418 -100.00 0 -100.00
2017-08-14 2017-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 12,418 12,418 186 0.0009
2016-11-14 2016-09-30 13F BUILDERS FIRSTSOURCE COM 12008R107 0 -5,098 -100.00 0 -100.00
2016-08-15 2016-06-30 13F BUILDERS FIRSTSOURCE COM 12008R107 5,098 5,098 56 0.0003
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-11-14 2025-09-30 13F BUILDERS FIRSTSOURCE COM Call 117,900 7.08 14,102 9.47 n/a n/a n/a
2025-08-18 2025-06-30 13F BUILDERS FIRSTSOURCE COM Call 110,100 19.54 12,883 12.34 n/a n/a n/a
2025-05-15 2025-03-31 13F BUILDERS FIRSTSOURCE COM Call 92,100 34.65 11,467 16.94 n/a n/a n/a
2025-02-14 2024-12-31 13F BUILDERS FIRSTSOURCE COM Call 68,400 -17.19 9,807 -38.88 n/a n/a n/a
2024-11-14 2024-09-30 13F BUILDERS FIRSTSOURCE COM Call 82,600 7.83 16,045 51.34 n/a n/a n/a
2024-08-14 2024-06-30 13F BUILDERS FIRSTSOURCE COM Call 76,600 104.81 10,602 35.94 n/a n/a n/a
2024-05-15 2024-03-31 13F BUILDERS FIRSTSOURCE COM Call 37,400 -30.87 7,800 -13.64 n/a n/a n/a
2024-02-14 2023-12-31 13F BUILDERS FIRSTSOURCE COM Call 54,100 9,031 n/a n/a n/a
2023-11-15 2023-09-30 13F BUILDERS FIRSTSOURCE COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-23 2023-06-30 13F BUILDERS FIRSTSOURCE COM Call 42,300 25.89 5,760 287,850.00 n/a n/a n/a
2023-05-15 2023-03-31 13F BUILDERS FIRSTSOURCE COM Call 33,600 24.91 3 -99.89 n/a n/a n/a
2023-02-14 2022-12-31 13F BUILDERS FIRSTSOURCE COM Call 26,900 -1.47 1,745 9.82 n/a n/a n/a
2022-11-14 2022-09-30 13F BUILDERS FIRSTSOURCE COM Call 27,300 -23.10 1,589 -15.03 n/a n/a n/a
2022-08-15 2022-06-30 13F BUILDERS FIRSTSOURCE COM Call 35,500 -20.76 1,870 -38.57 n/a n/a n/a
2022-05-16 2022-03-31 13F BUILDERS FIRSTSOURCE COM Call 44,800 -36.18 3,044 -48.41 n/a n/a n/a
2022-02-14 2021-12-31 13F BUILDERS FIRSTSOURCE COM Call 70,200 35.00 5,900 110.41 n/a n/a n/a
2021-11-12 2021-09-30 13F BUILDERS FIRSTSOURCE COM Call 52,000 -56.81 2,804 -45.29 n/a n/a n/a
2021-08-06 2021-06-30 13F BUILDERS FIRSTSOURCE COM Call 120,400 356.06 5,125 322.85 n/a n/a n/a
2021-05-14 2021-03-31 13F BUILDERS FIRSTSOURCE COM Call 26,400 4.76 1,212 13.80 n/a n/a n/a
2021-02-12 2020-12-31 13F BUILDERS FIRSTSOURCE COM Call 25,200 -27.38 1,065 -4.05 n/a n/a n/a
2020-11-13 2020-09-30 13F BUILDERS FIRSTSOURCE COM Call 34,700 1,110 n/a n/a n/a
2020-08-13 2020-06-30 13F BUILDERS FIRSTSOURCE COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-11 2020-03-31 13F BUILDERS FIRSTSOURCE COM Call 28,400 -42.97 365 -71.17 n/a n/a n/a
2020-02-12 2019-12-31 13F BUILDERS FIRSTSOURCE COM Call 49,800 54.18 1,266 92.11 n/a n/a n/a
2019-11-14 2019-09-30 13F BUILDERS FIRSTSOURCE COM Call 32,300 59.11 659 92.69 n/a n/a n/a
2019-08-20 2019-06-30 13F BUILDERS FIRSTSOURCE COM Call 20,300 62.40 342 104.79 n/a n/a n/a
2019-05-15 2019-03-31 13F BUILDERS FIRSTSOURCE COM Call 12,500 -65.18 167 -57.51 n/a n/a n/a
2019-02-13 2018-12-31 13F BUILDERS FIRSTSOURCE COM Call 35,900 50.84 393 12.61 n/a n/a n/a
2018-11-14 2018-09-30 13F BUILDERS FIRSTSOURCE COM Call 23,800 -20.40 349 -41.15 n/a n/a n/a
2018-08-13 2018-06-30 13F BUILDERS FIRSTSOURCE COM Call 29,900 0.00 593 0.00 n/a n/a n/a
2018-05-15 2018-03-31 13F BUILDERS FIRSTSOURCE COM Call 29,900 593 n/a n/a n/a
2018-02-14 2017-12-31 13F BUILDERS FIRSTSOURCE COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-11-15 2017-09-30 13F BUILDERS FIRSTSOURCE COM Call 36,200 -3.21 651 16.04 n/a n/a n/a
2017-08-14 2017-06-30 13F BUILDERS FIRSTSOURCE COM Call 37,400 561 n/a n/a n/a
2016-11-14 2016-09-30 13F BUILDERS FIRSTSOURCE COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-08-17 2016-06-30 13F/A BUILDERS FIRSTSOURCE COM Call 14,100 156 n/a n/a n/a
2016-08-15 2016-06-30 13F BUILDERS FIRSTSOURCE COM Call 141 156 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-11-14 2025-09-30 13F BUILDERS FIRSTSOURCE COM Put 71,900 -2.18 8,600 -0.01 n/a n/a n/a
2025-08-18 2025-06-30 13F BUILDERS FIRSTSOURCE COM Put 73,500 62.25 8,600 52.48 n/a n/a n/a
2025-05-15 2025-03-31 13F BUILDERS FIRSTSOURCE COM Put 45,300 8.11 5,640 -6.11 n/a n/a n/a
2025-02-14 2024-12-31 13F BUILDERS FIRSTSOURCE COM Put 41,900 -13.07 6,007 -35.84 n/a n/a n/a
2024-11-14 2024-09-30 13F BUILDERS FIRSTSOURCE COM Put 48,200 36.54 9,363 91.65 n/a n/a n/a
2024-08-14 2024-06-30 13F BUILDERS FIRSTSOURCE COM Put 35,300 12.42 4,886 -25.40 n/a n/a n/a
2024-05-15 2024-03-31 13F BUILDERS FIRSTSOURCE COM Put 31,400 -45.58 6,548 -32.02 n/a n/a n/a
2024-02-14 2023-12-31 13F BUILDERS FIRSTSOURCE COM Put 57,700 9,632 n/a n/a n/a
2023-11-15 2023-09-30 13F BUILDERS FIRSTSOURCE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-23 2023-06-30 13F BUILDERS FIRSTSOURCE COM Put 43,000 45.27 5,855 292,650.00 n/a n/a n/a
2023-05-15 2023-03-31 13F BUILDERS FIRSTSOURCE COM Put 29,600 -3.90 3 -99.90 n/a n/a n/a
2023-02-14 2022-12-31 13F BUILDERS FIRSTSOURCE COM Put 30,800 -30.16 1,998 -22.17 n/a n/a n/a
2022-11-14 2022-09-30 13F BUILDERS FIRSTSOURCE COM Put 44,100 15.75 2,567 27.90 n/a n/a n/a
2022-08-15 2022-06-30 13F BUILDERS FIRSTSOURCE COM Put 38,100 -41.47 2,007 -54.63 n/a n/a n/a
2022-05-16 2022-03-31 13F BUILDERS FIRSTSOURCE COM Put 65,100 69.97 4,424 37.43 n/a n/a n/a
2022-02-14 2021-12-31 13F BUILDERS FIRSTSOURCE COM Put 38,300 9.74 3,219 71.04 n/a n/a n/a
2021-11-12 2021-09-30 13F BUILDERS FIRSTSOURCE COM Put 34,900 -40.03 1,882 -24.05 n/a n/a n/a
2021-08-06 2021-06-30 13F BUILDERS FIRSTSOURCE COM Put 58,200 401.72 2,478 364.92 n/a n/a n/a
2021-05-14 2021-03-31 13F BUILDERS FIRSTSOURCE COM Put 11,600 -18.31 533 -11.17 n/a n/a n/a
2021-02-12 2020-12-31 13F BUILDERS FIRSTSOURCE COM Put 14,200 -77.39 600 -70.15 n/a n/a n/a
2020-11-13 2020-09-30 13F BUILDERS FIRSTSOURCE COM Put 62,800 2,010 n/a n/a n/a
2020-08-13 2020-06-30 13F BUILDERS FIRSTSOURCE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-11 2020-03-31 13F BUILDERS FIRSTSOURCE COM Put 17,500 -27.39 225 -63.30 n/a n/a n/a
2020-02-12 2019-12-31 13F BUILDERS FIRSTSOURCE COM Put 24,100 613 n/a n/a n/a
2019-05-15 2019-03-31 13F BUILDERS FIRSTSOURCE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-02-13 2018-12-31 13F BUILDERS FIRSTSOURCE COM Put 26,200 -32.65 287 -49.74 n/a n/a n/a
2018-11-14 2018-09-30 13F BUILDERS FIRSTSOURCE COM Put 38,900 128.82 571 69.44 n/a n/a n/a
2018-08-13 2018-06-30 13F BUILDERS FIRSTSOURCE COM Put 17,000 0.00 337 0.00 n/a n/a n/a
2018-05-15 2018-03-31 13F BUILDERS FIRSTSOURCE COM Put 17,000 337 n/a n/a n/a
2018-02-14 2017-12-31 13F BUILDERS FIRSTSOURCE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-11-15 2017-09-30 13F BUILDERS FIRSTSOURCE COM Put 17,600 317 n/a n/a n/a
2016-11-14 2016-09-30 13F BUILDERS FIRSTSOURCE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-08-15 2016-06-30 13F BUILDERS FIRSTSOURCE COM Put 21 23 n/a n/a n/a
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.