STOCK TITAN

[Form 4] ARMSTRONG WORLD INDUSTRIES INC Insider Trading Activity

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Armstrong World Industries senior vice president Michael Carl Winters converted previously granted performance-based restricted stock units into common shares as part of his equity compensation. On April 8, 2026, 3,742 performance units earned under the 2022 Equity and Cash Incentive Plan were settled into 3,742 shares of common stock after performance conditions were certified.

To cover related tax obligations, 1,629 of these shares were withheld by the company at a price of $172.77 per share, leaving Winters with 2,748 common shares held directly after the transactions. No performance units from this award remain outstanding following the conversion.

Positive

  • None.

Negative

  • None.
Insider Winters Michael Carl
Role SVP, Arch Spec & Bus Dev
Type Security Shares Price Value
Exercise Performance Based Restricted Stock Units 3,742 $0.00 --
Exercise Common Stock 3,742 $0.00 --
Tax Withholding Common Stock 1,629 $172.77 $281K
Holdings After Transaction: Performance Based Restricted Stock Units — 0 shares (Direct); Common Stock — 4,377 shares (Direct)
Footnotes (1)
  1. Reflects the conversion of previously granted performance restricted stock units into shares of Issuer's common stock in connection with the earning and payment of the units based on underlying performance metrics. Represents the number of shares withheld by the Issuer to satisfy the Reporting Person's tax obligations incurred upon the earning and payment of certain restricted stock units granted to the Reporting Person under the 2022 Equity and Cash Incentive Plan. Each performance restricted stock unit represents a contingent right to receive one share of Issuer's common stock. The performance restricted stock units were granted on March 1, 2023, under the 2022 Equity and Cash Incentive Plan of the Issuer. The performance period for the performance restricted stock units was January 1, 2023 to December 31, 2025, with the performance restricted stock units vesting at the conclusion of the performance period and earning and payment subject to achievement and certification of pre-established performance conditions. Achievement of the performance conditions was certified by the Management Development and Compensation Committee of the Board of Directors of the Issuer on April 8, 2026. Not applicable.
Performance RSUs converted 3,742 units/shares Converted to common stock on April 8, 2026
Shares withheld for taxes 1,629 shares Withheld at $172.77 per share for tax obligations
Post-transaction holdings 2,748 shares Common stock held directly after April 8, 2026 transactions
Tax withholding price $172.77 per share Value applied to 1,629 withheld shares
Performance period Jan 1, 2023 – Dec 31, 2025 Period for earning performance restricted stock units
Grant date March 1, 2023 Grant of performance restricted stock units under 2022 plan
Certification date April 8, 2026 Performance achievement certified by board committee
performance restricted stock units financial
"Reflects the conversion of previously granted performance restricted stock units into shares of Issuer's common stock"
Performance restricted stock units (PRSUs) are promises to deliver company shares to employees or executives only if the business meets specific performance targets and any time-based holding rules. Think of them as a bonus that converts into stock only after set goals are reached, so investors watch PRSUs for two reasons: they can dilute existing shares if paid out, and they signal how closely management’s pay is tied to company performance.
2022 Equity and Cash Incentive Plan financial
"granted on March 1, 2023, under the 2022 Equity and Cash Incentive Plan of the Issuer"
tax obligations financial
"shares withheld by the Issuer to satisfy the Reporting Person's tax obligations incurred upon the earning and payment"
Management Development and Compensation Committee financial
"Achievement of the performance conditions was certified by the Management Development and Compensation Committee of the Board of Directors"
vesting financial
"the performance restricted stock units vesting at the conclusion of the performance period"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
SEC Form 4
FORM 4UNITED 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*
Winters Michael Carl

(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)
Director10% Owner
XOfficer (give title below)Other (specify below)
SVP, Arch Spec & Bus Dev
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/08/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock04/08/2026M3,742(1)A$04,377D
Common Stock04/08/2026F1,629(2)D$172.772,748D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Performance Based Restricted Stock Units(3)04/08/2026M3,742 (4) (5)Common Stock3,742$00D
Explanation of Responses:
1. Reflects the conversion of previously granted performance restricted stock units into shares of Issuer's common stock in connection with the earning and payment of the units based on underlying performance metrics.
2. Represents the number of shares withheld by the Issuer to satisfy the Reporting Person's tax obligations incurred upon the earning and payment of certain restricted stock units granted to the Reporting Person under the 2022 Equity and Cash Incentive Plan.
3. Each performance restricted stock unit represents a contingent right to receive one share of Issuer's common stock.
4. The performance restricted stock units were granted on March 1, 2023, under the 2022 Equity and Cash Incentive Plan of the Issuer. The performance period for the performance restricted stock units was January 1, 2023 to December 31, 2025, with the performance restricted stock units vesting at the conclusion of the performance period and earning and payment subject to achievement and certification of pre-established performance conditions. Achievement of the performance conditions was certified by the Management Development and Compensation Committee of the Board of Directors of the Issuer on April 8, 2026.
5. Not applicable.
/s/ Alan M. Kidd, Attorney-in-fact04/10/2026
** Signature of Reporting PersonDate
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)