Crager Jill A. 4

What Happened
Jill A. Crager, Senior Vice President — Sales & Digital Marketing at Armstrong World Industries (AWI), had 1,082 restricted stock units (RSUs) convert into 1,082 common shares on Feb 27, 2026, valued at $173.50 per share (total value $187,727). To cover tax obligations from the vesting, 505 of those shares were withheld by the issuer (value $87,618), leaving a net of 577 shares delivered to the reporting person.

Key Details

• Transaction date: 2026-02-27; Filing date: 2026-03-02 (filed timely).
• RSU conversion price used for reporting: $173.50 per share.
• Gross shares from vesting: 1,082 shares (value $187,727).
• Shares withheld for taxes: 505 shares (value $87,618) — tax withholding (code F).
• Net shares retained by insider: 577 shares (1,082 - 505).
• Footnotes: F1/F3 confirm these were RSUs granted 3/1/2023 that vest one-for-one on the third anniversary; F2 explains issuer withheld shares to satisfy tax withholdings; F4 indicates the derivative security had a $0 exercise price (typical for RSUs).
• Shares owned after transaction: not specified in the filing.

Context
This was an RSU vesting and share-withholding for taxes (a common, routine equity compensation event), not an open-market sale or purchase. The conversion of RSUs to stock is reported as an exercise/conversion of a derivative for reporting purposes; because shares were withheld to cover taxes, this is not a disposition driven by the insider selling shares on the market. No 10b5-1 plan or late filing was indicated.