How many insider trades does FilingIQ track for BLDR?

FilingIQ tracks 827 Form 4 insider transactions for BLDR (Builders FirstSource, Inc.), covering filings from Apr 13, 2015 onwards. 42 of those were filed in the last 90 days.

Are BLDR insiders net buyers or net sellers?

Across the full Form 4 history for BLDR, 10 transactions (1%) were open-market purchases and 101 (12%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does BLDR insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is BLDR in?

Builders FirstSource, Inc. (BLDR) is classified in the Industrials sector, specifically Building Products & Equipment, with a current market capitalisation of $12.03B.

BLDR insider trading

NYSE Industrials

Builders FirstSource, Inc. — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

827

Last 90 days

Buys / sells

1% / 12%

Market cap

$12.03B

About Builders FirstSource, Inc.

Builders FirstSource, Inc., together with its subsidiaries, provides building materials for professional builders in new residential construction and repair, and remodeling in the United States. It offers manufactured products, such as factory-built substitutes for job-site framing, wood floor and roof trusses, wall panels, and engineered wood; Ready-Frame, a whole house framing solution; manufactured and semi-custom modular homes, and built in a temperature-controlled facility under its Pine Grove Homes and Pleasant Valley Homes brand names; manufactured housing plans including ranch, community, and single-section homes; manufacturing, assembly, and distribution of windows; and the assembly and distribution of interior and exterior door units. The company also provides millwork, including interior trim and custom features under the Synboard brand name; specialty building products and services comprising vinyl, composite and wood siding, exterior trim, metal studs, cement, roofing, insulation, wallboard, ceilings, cabinets, and hardware; turn-key framing, shell construction, design assistance, and professional installation of products. In addition, it offers drafting, estimating, quoting, and virtual home design services to retailers, distributors, manufacturers, and homebuilders; dimensional lumber, plywood, and oriented strand board products used in on-site house framing. The company was formerly known as BSL Holdings, Inc. and changed its name to Builders FirstSource, Inc. in October 1999. Builders FirstSource, Inc. was incorporated in 1998 and is based in Irving, Texas.

Company website: www.bldr.com

BLDR insider activity at a glance

FilingIQ has scored 827 insider transactions for BLDR since Apr 13, 2015. The most recent filing in our index is dated May 8, 2026.

Across the full history, 10 open-market purchases and 101 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on BLDR insider trades is 65.7/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live BLDR trades on FilingIQ Raw filings on SEC EDGAR

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13F funds holding BLDR

READYSTATE ASSET MANAGEMENT LP

$36.34M · 1.2% of AUM

RBF Capital, LLC

$26.62M · 1.2% of AUM

Frequently asked

How many insider trades does FilingIQ track for BLDR?: FilingIQ tracks 827 Form 4 insider transactions for BLDR (Builders FirstSource, Inc.), covering filings from Apr 13, 2015 onwards. 42 of those were filed in the last 90 days.
Are BLDR insiders net buyers or net sellers?: Across the full Form 4 history for BLDR, 10 transactions (1%) were open-market purchases and 101 (12%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does BLDR insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is BLDR in?: Builders FirstSource, Inc. (BLDR) is classified in the Industrials sector, specifically Building Products & Equipment, with a current market capitalisation of $12.03B.

Methodology & sources

Every BLDR insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.