BLDR Congressional Stock Trades & Insider Buying (2026)

BLDR insider buying and selling over the past year

Every open-market Form 4 transaction filed for Builders FirstSource, Inc. in the past year was a purchase: 1 buys worth $4.39M in total, and no open-market sales.

Activity clustered in 2026-03 (1 trades); the latest filing in this window is dated 2026-03-13. The single largest trade was a purchase of 50,000 shares worth $4.39M on 2026-03-13. Since the most recent filing the stock has moved -38.0%, from $88.09. Insiders paid an average of $87.73 per share for their open-market purchases; against the last close of $54.65 that cost basis is under water at -37.7%.

Where BLDR trades relative to its one-year range

Builders FirstSource, Inc. closed at $54.65 on 2026-10-16, inside a one-year range of $50.52 to $128.96. That puts the stock near the bottom of its range, at 5.3% of the distance from low to high. Over one year the share price moved -55.6%, and over roughly three months -26.4%. Average daily volume over the last month was about 3,634,977 shares.

Members of Congress who traded BLDR

STOCK Act disclosures show 25 trades in BLDR by 2 members of Congress over five years (12 purchases, 13 sales), most recently on 2026-09-25. The most active traders were Ro Khanna (D-CA), 24 trades; Kathy E. Manning (D-NC), 1 trade.

By party the trades split 25 by Democrats; by chamber, 25 from the House.

Compare BLDR with indexed peers from the same industry group

These peers have full Gemral Edge dossiers and the closest one-year price move to BLDR:

• TSCO one-year return -39.9%
• HD one-year return -20.1%
• LOW one-year return -18.8%
• SHW one-year return +1.1%

Sources and method

Every figure above is computed from public filings stored in Gemral Edge, not estimated. Insider figures count only open-market purchases and sales reported on SEC Form 4; option exercises, grants and gifts are excluded because they do not reflect a decision to buy or sell at market prices.

• SEC EDGAR Form 4 (edge_insider_trades, codes P/S open-market only) — as of 2026-03-13
• edge_prices_eod (end-of-day close) — as of 2026-10-16
• House PTR / Senate eFD disclosures (edge_congress_trades) — as of 2026-09-25

BLDR data questions

Are BLDR insiders buying or selling stock?

Every open-market Form 4 transaction filed for Builders FirstSource, Inc. in the past year was a purchase: 1 buys worth $4.39M in total, and no open-market sales.

What is the one-year price range for BLDR?

Based on end-of-day closes through 2026-10-16, BLDR traded between $50.52 and $128.96, last closing at $54.65.

Has any member of Congress traded BLDR stock?

Yes. 2 members disclosed 25 trades in BLDR over five years; the most recent disclosed trade date is 2026-09-25.