InsiderTrades

Form 4 for BLDR Builders FirstSource

Accepted 2026-03-17 00:00:00 ET · period of report 2026-03-15 · accession 0001193125-26-111430 · 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
M 2026-03-17 2026-03-15 BLDR Herron Stephen J COO A - Grant $0.00 +22.0K 116.9K +23% $0
2026-03-17 2026-03-15 BLDR Herron Stephen J COO F - Tax $88.09 -5,818 111.1K -5% -$512.5K

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 15,325 $0.00 110,278 D — —
2 Common Common Stock, par value $0.01 per share 2026-03-15 A A 6,650 $0.00 116,928 D — —
3 Common Common Stock, par value $0.01 per share 2026-03-15 F D 5,818 $88.09 111,110 D — —