Armstrong World (AWI) director receives 1,265 RSUs at $154.21 grant value

Rhea-AI Filing Summary

TEMPLIN ROY W reported acquisition or exercise transactions in this Form 4 filing.

Armstrong World Industries director Roy W. Templin received a grant of 1,265 restricted stock units as the equity portion of his annual Board retainer under the company’s 2016 Directors Stock Unit Plan and nonemployee Director Compensation Program.

The units vest if he continues serving until the next annual shareholders meeting, or earlier upon death, total and permanent disability, or a Change in Control as defined in the plan. Vested units become acquirable at either that next annual meeting or upon his termination of service, at his election. Following this grant, he holds 20,716 units, including vested, unvested, and not-yet-acquirable units.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider TEMPLIN ROY W

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,265	$0.00	--

Holdings After Transaction: Common Stock — 20,716 shares (Direct, null)

Footnotes (1)

1. Restricted stock units granted under the 2016 Directors Stock Unit Plan (the "2016 Plan"), and as part of the Issuer's nonemployee Director Compensation Program. The units vest (contingent upon the Director's continued service as of such date) on the earlier of (i) the date of the next annual shareholders meeting following the grant; (ii) the death or total and permanent disability of the Director; or (iii) the date of any Change in Control (as defined in the 2016 Plan). Vested units will be acquirable by the Director, at the election of the Director: (i) at the vesting of the units on the date of the next annual shareholders meeting following the grant or (ii) at the time of the Director's termination of service. Represents an annual grant of restricted stock units as the equity portion of the Director's retainer for Board service under the Issuer's nonemployee Director Compensation Program. The grant date fair value of the units is calculated under the Financial Accounting Standards Board's Accounting Standards Codification Topic 718 using the closing stock price of the Issuer's common shares on June 12, 2026, which price was $154.21. Includes vested and unvested units as well as units not yet acquirable by the Director. Under the terms of the 2016 Plan, vested units under the 2016 Plan are not acquirable by the Director until, at the election of the Director: (i) the vesting of the units on the date of the next annual shareholders meeting following the grant or (ii) the time of the Director's termination of service.

Key Figures

RSUs granted: 1,265 units Total units after grant: 20,716 units Grant-date share price: $154.21

3 metrics

RSUs granted 1,265 units Annual equity retainer grant on June 12, 2026

Total units after grant 20,716 units Director holdings following the reported transaction

Grant-date share price $154.21 Closing stock price used for ASC 718 fair value

Key Terms

restricted stock units, 2016 Directors Stock Unit Plan, Change in Control, Accounting Standards Codification Topic 718

4 terms

restricted stock units financial

"Restricted stock units granted under the 2016 Directors Stock Unit Plan"

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.

2016 Directors Stock Unit Plan financial

"granted under the 2016 Directors Stock Unit Plan (the "2016 Plan")"

Change in Control financial

"the date of any Change in Control (as defined in the 2016 Plan)"

A "change in control" occurs when the ownership or management of a company shifts significantly, such as through a merger, acquisition, or sale of a large part of its assets. This change can impact how the company is run and may influence its future direction. For investors, it matters because it can affect the company's stability, strategy, and value, often signaling potential changes in investment risk or opportunity.

Accounting Standards Codification Topic 718 financial

"calculated under the Financial Accounting Standards Board's Accounting Standards Codification Topic 718"

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Form 4 Insider Transactions: What Each Field Means →

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^*

TEMPLIN ROY W

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/12/2026

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
Common Stock(1)	06/12/2026		A		1,265(2)	A	$0	20,716(3)	D

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

Explanation of Responses:

1. Restricted stock units granted under the 2016 Directors Stock Unit Plan (the "2016 Plan"), and as part of the Issuer's nonemployee Director Compensation Program. The units vest (contingent upon the Director's continued service as of such date) on the earlier of (i) the date of the next annual shareholders meeting following the grant; (ii) the death or total and permanent disability of the Director; or (iii) the date of any Change in Control (as defined in the 2016 Plan). Vested units will be acquirable by the Director, at the election of the Director: (i) at the vesting of the units on the date of the next annual shareholders meeting following the grant or (ii) at the time of the Director's termination of service.

2. Represents an annual grant of restricted stock units as the equity portion of the Director's retainer for Board service under the Issuer's nonemployee Director Compensation Program. The grant date fair value of the units is calculated under the Financial Accounting Standards Board's Accounting Standards Codification Topic 718 using the closing stock price of the Issuer's common shares on June 12, 2026, which price was $154.21.

3. Includes vested and unvested units as well as units not yet acquirable by the Director. Under the terms of the 2016 Plan, vested units under the 2016 Plan are not acquirable by the Director until, at the election of the Director: (i) the vesting of the units on the date of the next annual shareholders meeting following the grant or (ii) the time of the Director's termination of service.

Remarks:

See Exhibit 24 - Power of Attorney

	/s/ Alan M. Kidd, Attorney-in-fact	06/15/2026
	** 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)

FAQ

What did AWI director Roy W. Templin report in this Form 4?

Roy W. Templin reported receiving 1,265 restricted stock units in Armstrong World Industries. These were granted as the equity portion of his annual retainer for Board service under the company’s 2016 Directors Stock Unit Plan and nonemployee Director Compensation Program.

How many AWI units does Roy W. Templin hold after this grant?

After this grant, Roy W. Templin holds 20,716 units related to Armstrong World Industries. This total includes vested and unvested restricted stock units, as well as units that are vested but not yet acquirable under the terms of the 2016 Directors Stock Unit Plan.

What are the vesting conditions for Roy W. Templin’s AWI restricted stock units?

The 1,265 restricted stock units vest if Templin continues as a director until the next annual shareholders meeting. They can also vest earlier upon his death, total and permanent disability, or a Change in Control, as defined in Armstrong World Industries’ 2016 Directors Stock Unit Plan.

When can Roy W. Templin acquire his vested AWI restricted stock units?

Under the 2016 Directors Stock Unit Plan, Templin may elect to acquire vested units either on the date of the next annual shareholders meeting following the grant, or at the time of his termination of service from the Armstrong World Industries Board of Directors.

How is the grant-date fair value of Roy W. Templin’s AWI units determined?

The grant-date fair value is calculated under FASB Accounting Standards Codification Topic 718. Armstrong World Industries uses the closing stock price of its common shares on June 12, 2026, which was $154.21, to determine the fair value of the restricted stock unit grant.