InsiderTrades

Form 4 for BLDR Builders FirstSource

Accepted 2026-03-17 00:00:00 ET · period of report 2026-03-15 · accession 0001193125-26-111427 · 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
MI 2026-03-17 2026-03-15 BLDR Robins Scott L Pres - West Division A - Grant $0.00 +15.1K 150.7K +11% $0
I 2026-03-17 2026-03-15 BLDR Robins Scott L Pres - West Division F - Tax $88.09 -5,057 151.2K -3% -$445.5K

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 2026-03-15 A A 5,594 $0.00 156,304 I By trust — —
2 Common Common Stock, par value $0.01 per share 2026-03-15 A A 9,507 $0.00 150,710 I By trust — —
3 Common Common Stock, par value $0.01 per share 2026-03-15 F D 5,057 $88.09 151,247 I By trust — —