401(k) · DOL Form 5500 · 2023

American Tower Corporation 401(k) Plan

Data updated 2026-08-11

$376M
Total assets: 1,910
Participants: 97th
Percentile by assets: $196,834
Avg per participant

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.

97th percentile by assets (of 127,072 plans)
#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.

$376M
total plan assets (2023 EOY): 1,910
covered participants: 97th
percentile by assets (of 127,072 plans): $196,834
avg assets per participant

Where American Tower Retirement Savings Plan sits 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

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 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 →

State

Massachusetts

Industry

Real Estate

Participants vs Massachusetts filers

In Massachusetts, the average filing covers about 659 participants across 4,265 plans. American Tower Retirement Savings Plan reports 1,910 participants - 2.9x that state average ($376M EOY assets).

Massachusetts filing particulars

Total Assets (Beginning of Year)	$301M
Net Assets (End of Year)	$376M
Net Income	$75M
Employer EIN	650723837
Plan Effective Date	1998-07-01
Filing Status	FILING RECEIVED

Sponsor Plan History (American Tower Corporation)

Total plan assets by year, all American Tower Corporation plans on file

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

Fidelity Retirement Savings Plan $28.6B · 62,289
Liberty Mutual 401(k) Plan $10.6B · 37,052
Massachusetts Institute of Technology Supplemental 401(k) Plan $6.8B · 14,094
Boston Scientific Corporation 401(k) Retirement Savings Plan $5.8B · 19,881
Philips North America 401(k) Plan $5.8B · 19,120

Compare American Tower Retirement Savings Plan side-by-side with 3 peers →

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to American Tower Retirement Savings Plan by total assets, not by location.

Smithfield Foods, Inc. Hourly 401(k) Plan (VA) $376M · 16,803
Nexteer Automotive Salaried 401(k) Retirement Plan (MI) $376M · 1,629
Lockheed Martin Corporation Operations Support Savings Plan (MD) $376M · 1,447
Tanner Advantage 401(k) Plan (GA) $376M · 3,878

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).

Next read for American Tower Retirement Savings Plan

Filing takeaways

Ways to act on American Tower Retirement Savings Plan's numbers.

By total assets, American Tower Retirement Savings Plan ranks in the top 5% of all filed plans by assets. See the largest plans
Compare it side-by-side against 3 similar 401(k) plans in Massachusetts. Compare plans
American Tower Corporation's sponsor-wide assets have grown 73.5% since 2022 across 3 plan years on file. More Real Estate plans

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.