401(k) · DOL Form 5500 · 2024

American Society for Radiation Oncology 401(k) Plan

Data updated 2026-08-25

$27M
Total assets Below avg plan size
78
Participants Small participant base
75th
Percentile by assets National rank
$341,465
Avg per participant High balance/head
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Official DOL plan name: Astro 401(k) Plan · Sponsored by American Society for Radiation Oncology · Virginia · Other Services

$27M in assets, 78 participants

American Society for Radiation Oncology's Astro 401(k) Plan reported $27M in total assets and 78 participants in its 2024 DOL Form 5500 filing, ranking in the 75th 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.

  • #6,731 in Other Services (7,719 peers)

Where Astro 401(k) Plan sits by assets

Astro 401(k) Plan sits in the top quartile of all filed plans by assets, $27M for 78 participants (~$341,465/participant), up 16.7% in 2024.

#6,731
in Other Services (7,719 peers)
+16.7%
assets growth YoY
0.3×
vs typical plan assets (national mean)

Astro 401(k) Plan's outsized position by total assets

Astro 401(k) Plan vs every filed plan by assets

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

$26,634,255 Top 25% higher than 75% 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

Astro 401(k) Plan among smaller filed plans by headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Astro 401(k) Plan is a small filing (78 participants) on this national headcount ladder.

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Astro 401(k) Plan end-of-year assets rose from $23M in the plan year 2023 filing to $27M in the plan year 2024 filing.
  • Astro 401(k) Plan reported net income fell from $4M in the plan year 2023 filing to $4M in the plan year 2024 filing.
  • Astro 401(k) Plan reported participants rose from 77 in the plan year 2023 filing to 78 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Published 5500 schedule card

Filing strip 420943164 · American Society for Radiation Oncology PY 2024 · 401(k)

Astro 401(k) Plan · $27M · 78 · 75th

  • PCT $27M
  • PCT 78
  • PCT 75th
  • PCT 401(k)
  • PCT near Lakeside Bank Employee Savings and Protection Plan
  • PCT ind #6731

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 Other Services retirement plans → · Plans in Virginia →

Astro 401(k) Plan in the asset neighbourhood

Astro 401(k) Plan$27MLakeside Bank Employee Savings and Protection PlanLakeside Bank Employee Savin…$27MWelia Health 401(k) Retirement Savings PlanWelia Health 401(k) Retireme…$27MLamers Bus Lines, Inc. 401(k) Profit Sharing PlanLamers Bus Lines, Inc. 401(k…$27MCentral New York Cardiology, P.C. 401(k) Savings PlanCentral New York Cardiology,…$27M
End-of-year total assets ($M) among Astro 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$23M
Net Assets (End of Year)$27M
Net Income$4M
Employer EIN420943164
Plan Effective Date1998-02-01
Filing StatusFILING RECEIVED

Sponsor Plan History (American Society for Radiation Oncology)

Sponsor-wide plan assets over time

All American Society for Radiation Oncology plans reported in each filing year

Latest sponsor-wide plan assets
$27M 45.06945064009362% vs 2022
2024 filing year
$15M$20M$25M$30M 202220232024 $18.4M $26.6M ▲ +45.0%
Year Plans Participants Total Assets
2022 1 75 $18M
2023 1 77 $23M
2024 1 78 $27M

Nearby 401(k) Plans in Virginia

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

Astro 401(k) Plan vs. nearby 401(k) plans in Virginia, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -1001020304050 Total assets ($B) Participants Astro 401(k) Plan, Total assets ($B): 0.026634255 · Participants: 78Astro 401(k) PlanNorthrop Grumman Savings Plan, Total assets ($B): 39.473777135 · Participants: 104719Northrop Grumman Savings Plan401(k) Pension Plan, Total assets ($B): 16.840459887 · Participants: 62869401(k) Pension PlanGeneral Dynamics Corporation 401(k) Plan 6.0, Total assets ($B): 12.395006194 · Participants: 49414General Dynamics Corporation 401(k) Plan 6.0Capital One Financial Corporation Associate Savings Plan, Total assets ($B): 12.04952818 · Participants: 44933Capital One Financial Corporation Associate Savings PlanLeidos, Inc. Retirement Plan, Total assets ($B): 11.790942581 · Participants: 29734Leidos, Inc. Retirement Plan
Astro 401(k) Plan vs. nearby 401(k) plans in Virginia, assets vs. participants
Compare Astro 401(k) Plan side-by-side with 3 peers →

Astro 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Virginia, the nearest 401(k) by assets is Lakeside Bank Employee Savings and Protection Plan in IL ($27M); by covered participants it is Altro USA, Inc. Retirement Plan in MA (78 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (78 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 Astro 401(k) Plan assets move in 2024? ▼
Astro 401(k) Plan grew sharply - up 16.7% during 2024, from $23M to $27M. Reported net income was $4M.
How have American Society for Radiation Oncology plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), American Society for Radiation Oncology's sponsor-wide assets grew 45.1%, from $18M to $27M.
Where does Astro 401(k) Plan rank by assets among Form 5500 filers? ▼
Astro 401(k) Plan ranks in the 75th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Astro 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Lakeside Bank Employee Savings and Protection Plan in IL ($27M, 176 participants).
Which 401(k) plans cover a similar participant headcount to Astro 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Altro USA, Inc. Retirement Plan in MA (78 participants, $12M 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 420943164.

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.