InsiderTrades

Form 4 for BLDR Builders FirstSource

Accepted 2026-05-12 16:05:04 ET · period of report 2026-05-08 · accession 0001193125-26-219363 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
2026-05-12 16:05 2026-05-08 BLDR Rush David E Dir S - Sale $78.17 -5,000 122.3K -4% -$390.9K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock, par value $0.01 per share 2026-05-08 S D 5,000 $78.17 122,284 D — — (F1) This transaction was executed in multiple trades at prices ranging from $78.14 to $78.25 per share. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request by the SEC staff, the issuer, or a security holder of the issuer.