So Austin 4

4 · ARMSTRONG WORLD INDUSTRIES INC · Filed Mar 2, 2026

AI-generated summary of this filing

Updated Mar 2, 2026

Armstrong (AWI) SVP So Austin Receives 2,595 Shares from RSU Vest

What Happened

So Austin, SVP, General Counsel, Government Relations & Chief Security Officer of Armstrong World Industries (AWI), had 2,595 restricted stock units (RSUs) vest on February 27, 2026. The RSUs converted one-for-one into common shares valued at $173.50 each (total value shown ~$450,233). To satisfy tax liabilities on the vesting, the issuer withheld 1,161 shares (disposed) valued at ~$201,434, leaving a net delivery of 1,434 shares to the reporting person.

Key Details

Transaction date: February 27, 2026; Form 4 filed March 2, 2026 (appears timely).
Conversion/vesting: 2,595 RSUs converted to 2,595 common shares (derivative price reported as $0 for RSUs).
Tax withholding: 1,161 shares withheld by the issuer to cover tax obligations (code F).
Net shares received by insider: 1,434 shares (2,595 ÷ 1,161 = net 1,434).
Footnotes: RSUs granted March 1, 2023, vest on the third anniversary subject to continued employment. Price per share used for value reporting: $173.50.
Shares owned after transaction: not specified in the provided filing details.

Context

This was an RSU vesting and share conversion, not an open-market purchase or voluntary sale. Withholding shares to cover taxes is a routine, non-speculative administrative action (a cashless settlement) and does not necessarily signal insider sentiment.

Form 4

Period: 2026-02-27

SVP, GC, Gov't. Rel., & CSO

Transactions

Exercise/Conversion
Common Stock
[F1]
2026-02-27$173.50/sh+2,595$450,233→ 10,129 total
Tax Payment
Common Stock
[F2]
2026-02-27$173.50/sh−1,161$201,434→ 8,968 total
Exercise/Conversion
Restricted Stock Units
[F1][F4][F3]
2026-02-27−2,595→ 0 total
→ Common Stock (2,595 underlying)

Footnotes (4)

[F1]Restricted Stock Units convert into common stock on a one-for-one basis.
[F2]Represents the number of shares withheld by the Issuer to satisfy the Reporting Person's tax obligations incurred upon the vesting of certain restricted stock units granted to the Reporting Person under the 2022 Equity and Cash Incentive Plan.
[F3]On March 1, 2023, the Reporting Person was granted 2,595 Restricted Stock Units, which vest on the third anniversary of the grant (contingent upon the Reporting Person's employment with the Issuer on the scheduled vesting date, except as provided for under the Issuer's 2022 Equity and Cash Incentive Plan).
[F4]Price of Derivative Security is $0.

Signature

/s/ Austin So|2026-03-02

1 file