401(k) · DOL Form 5500 · 2024

Adtran, Inc 401(k) Plan

Data updated 2026-08-25

$391M
Total assets Above avg plan size
932
Participants Near avg headcount
97th
Percentile by assets National rank
$420,021
Avg per participant High balance/head
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Official DOL plan name: Adtran, Inc. 401(k) Retirement Plan · Sponsored by Adtran, Inc · Alabama · Professional & Technical Services

$391M in assets, 932 participants

Adtran, Inc's Adtran, Inc. 401(k) Retirement Plan reported $391M in total assets and 932 participants in its 2024 DOL Form 5500 filing, ranking in the 97th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • #19,664 in Professional & Technical Services (20,173 peers)

Coverage in Alabama

Adtran, Inc. 401(k) Retirement Plan covers 932 participants in Alabama, 2.6x the typical Alabama plan (state average ~360 per filing). Assets: $391M.

#19,664
in Professional & Technical Services (20,173 peers)
+6.2%
assets growth YoY
3.9×
vs typical plan assets (national mean)

Adtran, Inc. 401(k) Retirement Plan's outsized position by total assets

Adtran, Inc. 401(k) Retirement Plan vs every filed plan by assets

End-of-year total assets · plan year 2024 · DOL Form 5500

$391,459,259 Top 3% higher than 97% of 123,620 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2024

Adtran, Inc. 401(k) Retirement Plan among mid-size filed plans by headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Adtran, Inc. 401(k) Retirement Plan sits mid-pack in the medium band (932 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Adtran, Inc. 401(k) Retirement Plan reported net income fell from $44M in the plan year 2023 filing to $23M in the plan year 2024 filing.
  • Adtran, Inc. 401(k) Retirement Plan reported participants fell from 1,043 in the plan year 2023 filing to 932 in the plan year 2024 filing.
  • Adtran, Inc. 401(k) Retirement Plan end-of-year assets rose from $369M in the plan year 2023 filing to $391M in the plan year 2024 filing.

See the national 2023→2024 release diff →

Plan-year Form 5500 strip

Filing strip 630918200 · Adtran, Inc PY 2024 · 401(k)

Adtran, Inc. 401(k) Retirement Plan · $391M · 932 · 97th

  • RANK $391M
  • RANK 932
  • RANK 97th
  • RANK 401(k)
  • RANK near The Perficient, Inc. 401(k) Employee Savings Plan
  • RANK ind #19664

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Professional & Technical Services retirement plans → · Plans in Alabama →

Adtran, Inc. 401(k) Retirement Plan in the asset neighbourhood

Plumbers and Steamfitters Local 486 Severance and Annuity/401(k) PlanPlumbers and Steamfitters Lo…$392MAdtran, Inc. 401(k) Retirement PlanAdtran, Inc. 401(k) Retireme…$391MThe Perficient, Inc. 401(k) Employee Savings PlanThe Perficient, Inc. 401(k) …$391MPentagon Federal Credit Union Thrift/Savings PlanPentagon Federal Credit Unio…$391MCwt 401(k) Plan$391M
End-of-year total assets ($M) among Adtran, Inc. 401(k) Retirement Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Alabama filing particulars

Total Assets (Beginning of Year)$369M
Net Assets (End of Year)$391M
Net Income$23M
Employer EIN630918200
Plan Effective Date1990-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Adtran, Inc)

Sponsor-wide plan assets over time

All Adtran, Inc plans reported in each filing year

Latest sponsor-wide plan assets
$391M 20.56354481416979% vs 2022
2024 filing year
$300M$350M$400M 202220232024 $325M $391M ▲ +20.6%
Year Plans Participants Total Assets
2022 1 1,042 $325M
2023 1 1,043 $369M
2024 1 932 $391M

Nearby 401(k) Plans in Alabama

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Adtran, Inc. 401(k) Retirement Plan vs. nearby 401(k) plans in Alabama, assets vs. participants Scatter plot of 6 data points. -10000010000200003000040000 01234 Total assets ($B) Participants Adtran, Inc. 401(k) Retirement Plan, Total assets ($B): 0.391459259 · Participants: 932Adtran, Inc. 401(k) Retirement PlanRegions Financial Corporation 401(k) Plan, Total assets ($B): 3.197489981 · Participants: 20783Regions Financial Corporation 401(k) PlanEncompass Health Corporation 401(k) Retirement Plan, Total assets ($B): 1.722944967 · Participants: 29454Encompass Health Corporation 401(k) Retirement PlanHexagon Employee Retirement Savings Plan, Total assets ($B): 1.651353194 · Participants: 4638Hexagon Employee Retirement Savings PlanVulcan 401(k) Plan, Total assets ($B): 1.472398962 · Participants: 8628Vulcan 401(k) PlanMercedes-Benz U.S. International, Inc. Retirement and Savings Plan, Total assets ($B): 1.234118844 · Participants: 6167Mercedes-Benz U.S. International, Inc. Retirement and Savings Plan
Adtran, Inc. 401(k) Retirement Plan vs. nearby 401(k) plans in Alabama, assets vs. participants
Compare Adtran, Inc. 401(k) Retirement Plan side-by-side with 3 peers →

Adtran, Inc. 401(k) Retirement Plan's out-of-state 401(k) peers by assets and headcount

Outside Alabama, the nearest 401(k) by assets is The Perficient, Inc. 401(k) Employee Savings Plan in MO ($391M); by covered participants it is Clark Hill PLC Salary Deferral Plan in MI (932 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($391M here).

Similar participant headcount

Nearest other-state filings by covered participants (932 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Adtran, Inc. 401(k) Retirement Plan assets move in 2024? ▼
Adtran, Inc. 401(k) Retirement Plan grew at a solid clip - up 6.2% during 2024, from $369M to $391M. Reported net income was $23M.
How have Adtran, Inc plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Adtran, Inc's sponsor-wide assets grew 20.6%, from $325M to $391M.
Where does Adtran, Inc. 401(k) Retirement Plan rank by assets among Form 5500 filers? ▼
Adtran, Inc. 401(k) Retirement Plan ranks in the 97th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to Adtran, Inc. 401(k) Retirement Plan? ▼
Among 401(k) plans in other states, the closest by assets is The Perficient, Inc. 401(k) Employee Savings Plan in MO ($391M, 2,670 participants).
Which 401(k) plans cover a similar participant headcount to Adtran, Inc. 401(k) Retirement Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Clark Hill PLC Salary Deferral Plan in MI (932 participants, $318M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 630918200.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.