ARMSTRONG WORLD INDUSTRIES INC — Director's Dealing 2021

May 4, 2021

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: ARMSTRONG WORLD INDUSTRIES INC (AWI)
CIK: 0000007431
Period of Report: 2021-04-30

Reporting Person: Burge James T. (Vice President & Controller)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	315	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Restricted Stock Units	$		Common Stock (54)		Direct
Restricted Stock Units	$		Common Stock (119)		Direct
Restricted Stock Units	$		Common Stock (255)		Direct

Footnotes

F1: Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock under the Issuer's 2016 Long-Term Incentive Plan.

F2: The restricted stock units were granted to the Reporting Person on February 26, 2019 and will 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 2016 Long-Term Incentive Plan).

F3: The restricted stock units were granted to the Reporting Person on February 25, 2020 and will vest as follows: (1) 59 on the second anniversary of the grant, and (2) 60 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 2016 Long-Term Incentive Plan).

F4: The restricted stock units were granted to the Reporting Person on February 24, 2021 and will vest as follows: (1) 85 on the first anniversary of the grant, (2) 85 on the second anniversary, and (3) 85 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 2016 Long-Term Incentive Plan).