Armstrong World grants 2,679 RSUs to HR chief

SVP and CHRO Jennifer Ott Kozak received two new RSU awards under AWI’s 2022 equity plan, adding time‑vested stock-based compensation.

Rhea-AI Filing Summary

ARMSTRONG WORLD INDUSTRIES INC (symbol: AWI) is the issuer of record for a Form 4 filing submitted to the SEC. Kozak Jennifer Ott reported acquisition or exercise transactions in this Form 4 filing.

ARMSTRONG WORLD INDUSTRIES INC (AWI) reported that officer Jennifer Ott Kozak, SVP and Chief Human Resources Officer, received two grants of restricted stock units on September 9, 2026 under the company’s 2022 Equity and Cash Incentive Plan. The awards cover 1,496 and 1,183 RSUs, each representing one share of common stock upon vesting, with no purchase price.

Insider Trade Summary

Grant/Award: 2,679 shares

Grant/Award 2 txns

Insider Kozak Jennifer Ott

Role SVP, CHRO

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units F1, F3, F2	1,496	--	--
Grant/Award	Restricted Stock Units F1, F3, F4	1,183	--	--

Holdings After Transaction: Restricted Stock Units — 2,679 contracts (Direct)

Footnotes (4)

1. F1. 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. F2. On September 9, 2026, the Reporting Person was granted 1,496 restricted stock units, which vest as follows: (1) 498 on the first anniversary of the grant, (2) 499 on the second anniversary of the grant and (3) 499 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).
3. F3. Price of Derivative Security is $0.
4. F4. The restricted stock units were granted to the Reporting Person on September 9, 2026 and will vest in full on September 9, 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).

Key Figures

RSUs granted (award 1): 1,496 units RSUs granted (award 2): 1,183 units Vesting schedule award 1, first tranche: 498 units +4 more

7 metrics

RSUs granted (award 1) 1,496 units Restricted stock units granted September 9, 2026, under 2022 Equity and Cash Incentive Plan

RSUs granted (award 2) 1,183 units Restricted stock units granted September 9, 2026, under 2022 Equity and Cash Incentive Plan

Vesting schedule award 1, first tranche 498 units Vests on the first anniversary of the September 9, 2026 grant date

Vesting schedule award 1, second tranche 499 units Vests on the second anniversary of the September 9, 2026 grant date

Vesting schedule award 1, third tranche 499 units Vests on the third anniversary of the September 9, 2026 grant date

Cliff vesting date for 1,183 RSUs September 9, 2029 All 1,183 restricted stock units vest in full on this date, subject to employment

Price of derivative security $0 Stated price per restricted stock unit for both awards

Key Terms

Restricted Stock Units, 2022 Equity and Cash Incentive Plan, contingent right, derivative security

4 terms

Restricted Stock Units financial

"Each restricted stock unit represents a contingent right to receive one share"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

2022 Equity and Cash Incentive Plan financial

"under the Issuer's 2022 Equity and Cash Incentive Plan"

contingent right financial

"represents a contingent right to receive one share of the Issuer's common stock"

derivative security financial

"Price of Derivative Security is $0"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did AWI disclose in this Form 4 for Jennifer Ott Kozak?

AWI disclosed that SVP and CHRO Jennifer Ott Kozak received two grants of restricted stock units on September 9, 2026, covering 1,496 RSUs and 1,183 RSUs, under the company’s 2022 Equity and Cash Incentive Plan.

How many AWI restricted stock units were granted to Jennifer Ott Kozak?

Jennifer Ott Kozak was granted a total of 2,679 restricted stock units, consisting of one award of 1,496 RSUs and a second award of 1,183 RSUs. Each restricted stock unit represents a contingent right to receive one share of AWI common stock upon vesting.

What are the vesting terms of the 1,496 AWI restricted stock units?

The 1,496 AWI RSUs vest in three installments: 498 units on the first anniversary of September 9, 2026, 499 units on the second anniversary, and 499 units on the third anniversary, contingent on continued employment except as provided in the plan.

When do the 1,183 AWI restricted stock units vest for Jennifer Ott Kozak?

The 1,183 AWI restricted stock units granted to Jennifer Ott Kozak on September 9, 2026 will vest in full on September 9, 2029, contingent upon her employment with Armstrong World Industries on the scheduled vesting date, subject to the plan’s provisions.

Did Jennifer Ott Kozak pay anything for the AWI restricted stock units?

No. The filing states that the price of the derivative security is $0. These are grant or award acquisitions of restricted stock units under the 2022 Equity and Cash Incentive Plan, not open-market purchases.

Were the AWI RSU grants to Jennifer Ott Kozak made under a Rule 10b5-1 trading plan?

The document-level checkbox for Rule 10b5-1 is false, and the footnotes do not mention any trading plan. The reported RSU grants therefore are not disclosed as being made under a Rule 10b5-1 plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/10/2026 - 04:35 PM Accepted by SEC EDGAR 09/10/2026 - 04:34 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Kozak Jennifer Ott

(Last) (First) (Middle)

C/O ARMSTRONG WORLD INDUSTRIES, INC.

2500 COLUMBIA AVENUE

(Street)

LANCASTER PENNSYLVANIA 17603

(City) (State) (Zip)

UNITED STATES

(Country)

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, CHRO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/09/2026

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

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

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

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)	09/09/2026		A		1,496		(2)	(2)	Common Stock	1,496	(3)	1,496	D
Restricted Stock Units(1)	(1)	09/09/2026		A		1,183		(4)	(4)	Common Stock	1,183	(3)	2,679	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. On September 9, 2026, the Reporting Person was granted 1,496 restricted stock units, which vest as follows: (1) 498 on the first anniversary of the grant, (2) 499 on the second anniversary of the grant and (3) 499 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).

3. Price of Derivative Security is $0.

4. The restricted stock units were granted to the Reporting Person on September 9, 2026 and will vest in full on September 9, 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	09/10/2026
	** 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.
* Form 4: SEC 1474 (03-26)