BLDRNYSE

Builders FirstSource, Inc.

Alert me on BLDR

Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

May 13 Sale Rush David E Insider

1 week

−1.5%S&P −0.1%

1 month

+7.5%S&P −0.1%

3 months

+1.7%S&P +5.1%

6 months

Result in7 trading days

Mar 17 Buy LEVY PAUL S Insider

1 week

−7.4%S&P −2.4%

1 month

−7.5%S&P +4.9%

3 months

−13.2%S&P +12.2%

6 months

−34.2%S&P +13.0%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for BLDR

85 held · newest 585 held · newest 2

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See all 85 filings for BLDR

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Signal history

No signal for this ticker yet. A signal is written when insider buying here scores one dot or more.

Stakes

Sep 30, 2026 Schedule 13G

Vanguard Portfolio Management: 5%, 5,417,946 shares

Sep 30, 2026 Schedule 13G, amended

Vanguard Capital Management: 5.1%, 5,523,863 shares

Sep 30, 2026 Schedule 13G, amended

BlackRock, Inc.: 12%, 12,897,766 shares

Mar 31, 2026 Schedule 13G

Vanguard Capital Management: 7.2%, 7,972,037 shares

Mar 13, 2026 Schedule 13G, amended

The Vanguard Group: 0%, 0 shares

Nov 28, 2025 Schedule 13G, amended

FMR LLC: 3.3%, 3,699,740 shares

Schedule 13D is filed within 5 business days of crossing 5 percent by an investor who may seek to influence the company. Schedule 13G is filed by a passive holder, and a large institution has up to 45 days after the quarter end.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters

No lobbying reports on file.