Armstrong World Industries Inc 401(k) Plan: Login, Facts & Contact Information

Armstrong World Industries Inc 401(k) Plan Facts

Plan name
SAVINGS AND INVESTMENT PLAN OF ARMSTRONG WORLD INDUSTRIES, INC.
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
ARMSTRONG WORLD INDUSTRIES INC
Participants
3,995 (2,882 active employees)
Former employees with a balance
983
Plan assets
$526,242,607 at Dec 31, 2024
Average account balance
$137,580 across 3,825 accounts
Employer contributions
$10,425,101 in plan year 2024 (29% of all contributions)
Recordkeeper
Fidelity Investments Institutional
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Aug 1, 1983
Employer contributions Automatic enrollment Default investment for undecided participants Participants choose their own investments Self-directed brokerage window Profit sharing Company stock (ESOP)

Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Oct 14, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $35.9 million went into the plan in contributions, $10.4 million of it from the employer (29%).
  • $53.6 million was paid out to participants.
  • Investment and other income added $70.8 million.
  • Administrative expenses were $26,990, about $7 per account.

How the Armstrong World Industries Inc 401(k) changed, 20182024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
20183,238$344.9 million$6.21 million$30.7 million
20193,335$401.0 million$6.60 million$40.9 million
20203,454$455.4 million$7.06 million$35.6 million
20213,494$506.6 million$7.86 million$42.2 million
20223,692$422.1 million$8.52 million$40.0 million
20243,995$526.2 million$10.4 million$53.6 million

Armstrong World Industries Inc 401(k) Contact Information

Phone
717-397-0611
Mailing address
P. O. BOX 3001, LANCASTER PA 176043001
Plan sponsor
ARMSTRONG WORLD INDUSTRIES INC
Plan administrator
RETIREMENT COMM OF ARMSTRONG WORLD INDUSTRIES INC
Employer identification number (EIN)
23-0366390
Plan number
014

Questions about the Armstrong World Industries Inc 401(k)

Does Armstrong World Industries Inc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $10.4 million, 29% of all contributions.

Does the Armstrong World Industries Inc 401(k) have automatic enrollment?

No. The plan does not report automatic enrollment; employees enroll themselves.

How many people are in the Armstrong World Industries Inc 401(k) plan?

3,995 participants at the start of plan year 2024, 2,882 of them active employees, and 983 former employees who still had money in the plan.

What is the average 401(k) balance at Armstrong World Industries Inc?

About $137,580 per account: $526.2 million in plan assets across 3,825 accounts with a balance at the end of plan year 2024.

Who manages the Armstrong World Industries Inc 401(k) accounts?

Fidelity NetBenefits (listed on the filing as FIDELITY INVESTMENTS INSTITUTIONAL) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Armstrong World Industries Inc. How do I access my 401(k)?

Your account stays with Fidelity NetBenefits after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.

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