InsiderTrades

Form 4 for BLDR Builders FirstSource

Accepted 2026-03-17 00:00:00 ET · period of report 2026-03-15 · accession 0001193125-26-111424 · 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 Trester Matthew Principal Accounting Off A - Grant $0.00 +2,117 4,579 +86% $0
2026-03-17 2026-03-15 BLDR Trester Matthew Principal Accounting Off F - Tax $88.09 -648 4,629 -12% -$57.1K

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 698 $0.00 5,277 D — —
2 Common Common Stock, par value $0.01 per share 2026-03-15 A A 1,419 $0.00 4,579 D — —
3 Common Common Stock, par value $0.01 per share 2026-03-15 F D 648 $88.09 4,629 D — —