BLDR insider buying and SEC filings, explained
Builders FirstSource, Inc. · CIK 1316835
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$4.4M
Insiders who bought
1
Sold (not marked 10b5-1)
$391K
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| May 8, 2026 | Sale | David E Rush (Director) sold 5,000 shares at about $78.17 ($391K). Holdings down 4% to 122,284 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 12, 2026 |
| Mar 13, 2026 | Open-market purchase | Paul S. Levy (Director) bought 50,000 shares at $87.73 ($4.4M) in an open-market purchase. Holdings up 3% to 1,727,191 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 16, 2026 |
67 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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