Builders Firstsource (BLDR): Congress and insider trades
Who in Congress and inside the company traded BLDR, when each filing appeared, and what buying after each one would have earned against the S&P 500.
Key Facts
- Builders Firstsource (BLDR) is a listed stock on NYSE.
- 3 members of Congress filed 14 buys and 10 sells of BLDR, the latest published 2026-09-07 (7 September 2026).
- Across 10 scored buys, Congress averaged -1.5% against the S&P 500 (SPY) over the 90 days after disclosure, with 50% of them ahead of the index. That result is not distinguishable from luck.
- Data as of 2026-09-29 (29 September 2026).
Congress trades in BLDR
as of 2026-09-07| Filed | Member | Type | Size | Days to file | 90 day vs S&P |
|---|---|---|---|---|---|
| 7 Sep 2026 | Ro Khanna (D-CA) | sell | 1K–15K | 25 | n/a |
| 7 Sep 2026 | Ro Khanna (D-CA) | buy | 1K–15K | 11 | n/a |
| 7 Sep 2026 | Ro Khanna (D-CA) | buy | 1K–15K | 32 | n/a |
| 12 Aug 2026 | Ro Khanna (D-CA) | buy | 1K–15K | 31 | n/a |
| 8 Jul 2026 | Ro Khanna (D-CA) | sell | 1K–15K | 34 | n/a |
| 11 Jun 2026 | Ro Khanna (D-CA) | buy | 1K–15K | 39 | -26.6% |
| 11 Jun 2026 | Ro Khanna (D-CA) | sell | 1K–15K | 13 | n/a |
| 13 May 2026 | Ro Khanna (D-CA) | buy | 1K–15K | 17 | -5.1% |
| 9 Apr 2026 | Ro Khanna (D-CA) | sell | 1K–15K | 8 | n/a |
| 12 Mar 2026 | Ro Khanna (D-CA) | buy | 1K–15K | 13 | -22.5% |
| 15 May 2025 | Ro Khanna (D-CA) | buy | 1K–15K | 19 | +5.7% |
| 30 Dec 2022 | Susie Lee (D-NV) | sell | 1K–15K | 29 | n/a |
| 7 Dec 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 34 | +28.6% |
| 15 Sep 2022 | Kathy Manning (D-NC) | sell | 1K–15K | 42 | n/a |
| 11 Aug 2022 | Kathy Manning (D-NC) | buy | 1K–15K | 21 | -0.8% |
| 11 Jul 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 10 | n/a |
| 15 Jun 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 18 | +1.3% |
| 15 Jun 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 31 | +1.3% |
| 12 May 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 25 | n/a |
| 9 Feb 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 18 | +3.6% |
| 11 Sep 2021 | Susie Lee (D-NV) | sell | 1K–15K | 24 | n/a |
| 15 Jun 2021 | Susie Lee (D-NV) | buy | 1K–15K | 31 | +15.2% |
| 12 Mar 2021 | Susie Lee (D-NV) | buy | 1K–15K | 30 | -14.1% |
| 9 Dec 2020 | Susie Lee (D-NV) | sell | 1K–15K | 47 | n/a |
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Related pages
Frequently asked questions
Who has bought BLDR?
14 Congress buys by 3 members and 0 insider buys are on file. The tables on this page list every one.
Did buying BLDR after a disclosure beat the market?
Across 10 scored buys, Congress averaged -1.5% against the S&P 500 (SPY) over the 90 days after disclosure, with 50% of them ahead of the index. That result is not distinguishable from luck. A single stock is a small sample.
Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.
Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.