401(k) · DOL Form 5500 · 2023

American Tower Corporation 401(k) Plan

Data updated 2026-08-25

$376M
Total assets Above avg plan size
1,910
Participants Near avg headcount
97th
Percentile by assets National rank
$196,834
Avg per participant Above avg balance/head
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Official DOL plan name: American Tower Retirement Savings Plan · Sponsored by American Tower Corporation · Massachusetts · Real Estate

$376M in assets, 1,910 participants

American Tower Corporation's American Tower Retirement Savings Plan reported $376M in total assets and 1,910 participants in its 2023 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.

  • #4,699 in Real Estate (4,727 peers)

Coverage in Massachusetts

American Tower Retirement Savings Plan covers 1,910 participants in Massachusetts, 2.9x the typical Massachusetts plan (state average ~659 per filing). Assets: $376M.

#4,699
in Real Estate (4,727 peers)
+24.7%
assets growth YoY
3.8×
vs typical plan assets (national mean)

American Tower Retirement Savings Plan's outsized position by total assets

American Tower Retirement Savings Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$375,952,394 Top 3% higher than 97% of 127,068 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 2023

American Tower Retirement Savings Plan's large-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. American Tower Retirement Savings Plan lands in the large band (1,910 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • American Tower Retirement Savings Plan reported net income rose from -$60M in the plan year 2022 filing to $75M in the plan year 2023 filing.
  • American Tower Retirement Savings Plan end-of-year assets rose from $301M in the plan year 2022 filing to $376M in the plan year 2023 filing.
  • American Tower Retirement Savings Plan reported participants rose from 1,839 in the plan year 2022 filing to 1,910 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Form 5500 schedule snapshot

Filing strip 650723837 · American Tower Corporation PY 2023 · 401(k)

American Tower Retirement Savings Plan · $376M · 1,910 · 97th

  • EIN $376M
  • EIN 1,910
  • EIN 97th
  • EIN 401(k)
  • EIN near Smithfield Foods, Inc. Hourly 401(k) Plan
  • EIN ind #4699

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 Real Estate retirement plans → · Plans in Massachusetts →

American Tower Retirement Savings Plan in the asset neighbourhood

American Tower Retirement Savings PlanAmerican Tower Retirement Sa…$376MSmithfield Foods, Inc. Hourly 401(k) PlanSmithfield Foods, Inc. Hourl…$376MNexteer Automotive Salaried 401(k) Retirement PlanNexteer Automotive Salaried …$376MLockheed Martin Corporation Operations Support Savings PlanLockheed Martin Corporation …$376MTanner Advantage 401(k) Plan$376M
End-of-year total assets ($M) among American Tower Retirement Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Massachusetts filing particulars

Total Assets (Beginning of Year)$301M
Net Assets (End of Year)$376M
Net Income$75M
Employer EIN650723837
Plan Effective Date1998-07-01
Filing StatusFILING RECEIVED

Sponsor Plan History (American Tower Corporation)

Sponsor-wide plan assets over time

All American Tower Corporation plans reported in each filing year

Latest sponsor-wide plan assets
$523M 73.4507226577008% vs 2022
2024 filing year
$200M$300M$400M$500M$600M 202220232024 $301M $523M ▲ +73.5%
Year Plans Participants Total Assets
2022 1 1,839 $301M
2023 1 1,910 $376M
2024 1 1,913 $523M

Nearby 401(k) Plans in Massachusetts

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

American Tower Retirement Savings Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -10010203040 Total assets ($B) Participants American Tower Retirement Savings Plan, Total assets ($B): 0.375952394 · Participants: 1910American Tower Retirement Savings PlanFidelity Retirement Savings Plan, Total assets ($B): 28.649852331 · Participants: 62289Fidelity Retirement Savings PlanLiberty Mutual 401(k) Plan, Total assets ($B): 10.556596852 · Participants: 37052Liberty Mutual 401(k) PlanMassachusetts Institute of Technology Supplemental 401(k) Plan, Total assets ($B): 6.829912863 · Participants: 14094Massachusetts Institute of Technology Supplemental 401(k) PlanBoston Scientific Corporation 401(k) Retirement Savings Plan, Total assets ($B): 5.786107181 · Participants: 19881Boston Scientific Corporation 401(k) Retirement Savings PlanPhilips North America 401(k) Plan, Total assets ($B): 5.779286156 · Participants: 19120Philips North America 401(k) Plan
American Tower Retirement Savings Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare American Tower Retirement Savings Plan side-by-side with 3 peers →

American Tower Retirement Savings Plan's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is Smithfield Foods, Inc. Hourly 401(k) Plan in VA ($376M); by covered participants it is Ima Financial Group, Inc. 401(k) Profit Sharing Plan and Trust in KS (1,910 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($376M here).

Similar participant headcount

Nearest other-state filings by covered participants (1,910 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did American Tower Retirement Savings Plan assets move in 2023? ▼
American Tower Retirement Savings Plan grew sharply - up 24.7% during 2023, from $301M to $376M. Reported net income was $75M.
How have American Tower Corporation plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), American Tower Corporation's sponsor-wide assets grew 73.5%, from $301M to $523M.
Where does American Tower Retirement Savings Plan rank by assets among Form 5500 filers? ▼
American Tower Retirement Savings Plan ranks in the 97th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to American Tower Retirement Savings Plan? ▼
Among 401(k) plans in other states, the closest by assets is Smithfield Foods, Inc. Hourly 401(k) Plan in VA ($376M, 16,803 participants).
Which 401(k) plans cover a similar participant headcount to American Tower Retirement Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Ima Financial Group, Inc. 401(k) Profit Sharing Plan and Trust in KS (1,910 participants, $233M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 650723837.

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.