Armstrong World (NYSE: AWI) CFO receives 2,054 restricted stock units grant

Rhea-AI Filing Summary

Calzaretta Christopher P. reported acquisition or exercise transactions in this Form 4 filing.

Armstrong World Industries granted Senior Vice President and CFO Christopher P. Calzaretta 2,054 restricted stock units of company stock. Each unit represents the right to receive one share of common stock under the 2022 Equity and Cash Incentive Plan.

The restricted stock units were granted on February 25, 2026 and are scheduled to vest in full on February 25, 2029, contingent on his continued employment, subject to the terms of the 2022 plan. Following this grant, his direct holding of restricted stock units is 2,054 units.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Calzaretta Christopher P.

(Last) (First) (Middle)

C/O ARMSTRONG WORLD INDUSTRIES, INC.

2500 COLUMBIA AVENUE

(Street)

LANCASTER PA 17603

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ARMSTRONG WORLD INDUSTRIES INC [ AWI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP & CFO

3. Date of Earliest Transaction (Month/Day/Year)
02/25/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units(1)	(1)	02/25/2026		A		2,054		(2)	(2)	Common Stock	2,054	$172.21	2,054	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock under the Issuer's 2022 Equity and Cash Incentive Plan.

2. The restricted stock units were granted to the Reporting Person on February 25, 2026 and will vest in full on February 25, 2029 (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.

	/s/ Alan M. Kidd, Attorney-in-fact	02/26/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did AWI disclose about Christopher Calzaretta’s latest equity award?

Armstrong World Industries granted Christopher P. Calzaretta 2,054 restricted stock units. These units give him the right to receive an equal number of AWI common shares if vesting conditions under the 2022 Equity and Cash Incentive Plan are satisfied.

When do Christopher Calzaretta’s new AWI restricted stock units vest?

The 2,054 restricted stock units granted to Christopher P. Calzaretta vest in full on February 25, 2029. Vesting is contingent on his continued employment, subject to provisions of Armstrong World Industries’ 2022 Equity and Cash Incentive Plan.

How many AWI restricted stock units does Christopher Calzaretta hold after this grant?

After the February 25, 2026 grant, Christopher P. Calzaretta holds 2,054 restricted stock units in total. All of these units are reported as directly owned and are subject to vesting conditions under the 2022 Equity and Cash Incentive Plan.

What does each AWI restricted stock unit granted to Christopher Calzaretta represent?

Each restricted stock unit granted to Christopher P. Calzaretta represents a contingent right to receive one share of Armstrong World Industries common stock. Settlement depends on satisfying vesting conditions set out in the company’s 2022 Equity and Cash Incentive Plan.

Under which plan were Christopher Calzaretta’s AWI restricted stock units granted?

The 2,054 restricted stock units were granted under Armstrong World Industries’ 2022 Equity and Cash Incentive Plan. This plan governs the award terms, including vesting schedule, continued employment requirements, and any exceptions described in the plan documentation.