Form 4 for AWI ARMSTRONG WORLD INDUSTRIES INC

Accepted 2026-04-29 16:26:50 ET · period of report 2026-04-28 · accession 0000007431-26-000048 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
D	2026-04-29 16:26	2026-04-28	AWI	Grizzle Victor	Executive COB, Dir	M - OptEx	$169.84	+72.8K	537.5K	+16%	+$12.37M
D	2026-04-29 16:26	2026-04-28	AWI	Grizzle Victor	Executive COB, Dir	F - Tax	$169.84	-31.7K	505.8K	-6%	-$5.38M
D	2026-04-29 16:26	2026-04-28	AWI	Grizzle Victor	Executive COB, Dir	M - OptEx	—	-72.8K	0	-100%	—

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2026-04-28	M	A	72,823	$169.84	537,493	D	—	—	(F1) Restricted Stock Units convert into common stock on a one-for-one basis.
2	Common	Common Stock	2026-04-28	F	D	31,671	$169.84	505,822	D	—	—	(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.
3	Derivative	Restricted Stock Units	2026-04-28	M	D	72,823	—	0	D	— · — to —	72,823 Common Stock	(F1) Restricted Stock Units convert into common stock on a one-for-one basis. (F4) Price of Derivative Security is $0. (F3) On April 28, 2023, the Reporting Person was granted 72,823 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). (F3) On April 28, 2023, the Reporting Person was granted 72,823 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).