Calzaretta Christopher P. 4

What Happened

• Christopher P. Calzaretta, Senior Vice President & Chief Financial Officer of Armstrong World Industries (AWI), received a grant of 2,054 restricted stock units (RSUs) on February 25, 2026.
• The RSUs are reported at $172.21 per share, for a grant value of $353,719. This filing reports an award (code A) of a derivative security (RSUs), not an open-market purchase or sale.

Key Details

• Transaction date: 2026-02-25; filing date: 2026-02-26 (timely filing).
• Grant size and value: 2,054 RSUs × $172.21 = $353,719.
• Vesting: The RSUs will vest in full on February 25, 2029, contingent on continued employment (per footnote F2).
• Footnotes: F1 — each RSU equals a contingent right to one share under the Issuer's 2022 Equity and Cash Incentive Plan; F2 — vesting schedule and employment contingency.
• Shares owned after the transaction: Not stated in the filing.

Context

• RSU awards are compensation-based grants that convert to shares only if vesting conditions are met; they are not an immediate market purchase and do not by themselves signal a personal cash investment by the insider.
• This is routine executive compensation reporting of a derivative award rather than trading activity.