Cope Jonathan P 4

What Happened
Jonathan P. Cope, President - Commercial of Builders FirstSource (BLDR), received a grant of 5,676 restricted stock units (RSUs) on March 15, 2026. At the same time, 739 shares were withheld (disposed) to satisfy tax withholding obligations related to previously vested RSUs; those withheld shares were valued at $88.09 each for a total of $65,099. The RSU grant is reported as an acquisition (award); the withheld shares are a tax-withholding disposition, not an open-market sale.

Key Details

• Transaction date: 2026-03-15; Form 4 filed: 2026-03-17 (timely filing).
• Withheld/disposed: 739 shares at $88.09 each, total $65,099 (code F — tax withholding).
• Award/acquired: 5,676 RSUs reported at $0.00 on the form (code A — grant/award).
• Shares owned after the transaction: not disclosed in the provided filing.
• Footnotes: F1 — shares withheld to meet tax withholding on vesting of prior RSUs; F2 — the 5,676 RSUs were granted under the 2014 Incentive Plan and vest in 33.33% increments on March 15 of 2027, 2028 and 2029, each RSU converting to one share when vested.

Context

• RSUs are a form of compensation that convert to shares as they vest; the grant itself is not an open-market purchase and does not necessarily signal immediate buying interest.
• The 739-share disposition was a tax-withholding action (a routine administrative disposition), not a voluntary sale into the market.
• Vesting schedule means the newly granted RSUs will deliver shares over three future annual vesting dates (2027–2029) if the holder remains eligible.