Other · DOL Form 5500 · 2024

Lowell Observatory Retirement Plan

Data updated 2026-08-11

$37M
Total assets
130
Participants
80th
Percentile by assets
$285,194
Avg per participant
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Official DOL plan name: Lowell Observatory 403(b) Retirement Annuity Plan · Sponsored by Lowell Observatory · Arizona · Professional & Technical Services

$37M in assets, 130 participants

Lowell Observatory's Lowell Observatory 403(b) Retirement Annuity Plan reported $37M in total assets and 130 participants in its 2024 DOL Form 5500 filing, ranking in the 80th 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.

  • 80th percentile by assets (of 123,622 plans)
  • #16,300 in Professional & Technical Services (20,173 peers)

Coverage in Arizona

Lowell Observatory 403(b) Retirement Annuity Plan covers 130 participants in Arizona, about 23% of the average Arizona filer (state average ~564 per filing). Assets: $37M.

$37M
total plan assets (2024 EOY)
130
covered participants
80th
percentile by assets (of 123,622 plans)
$285,194
avg assets per participant

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Lowell Observatory 403(b) Retirement Annuity Plan reported net income fell from $5M in the plan year 2023 filing to $4M in the plan year 2024 filing.
  • Lowell Observatory 403(b) Retirement Annuity Plan reported participants fell from 150 in the plan year 2023 filing to 130 in the plan year 2024 filing.
  • Lowell Observatory 403(b) Retirement Annuity Plan end-of-year assets rose from $33M in the plan year 2023 filing to $37M in the plan year 2024 filing.

See the national 2023→2024 release diff →

Participants vs Arizona filers

In Arizona, the average filing covers about 564 participants across 2,304 plans. Lowell Observatory 403(b) Retirement Annuity Plan reports 130 participants - about 23% of that state average ($37M EOY assets).

Arizona filing particulars

Total Assets (Beginning of Year)$33M
Net Assets (End of Year)$37M
Net Income$4M
Employer EIN860098918
Plan Effective Date1953-07-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Lowell Observatory)

$25M$30M$35M$40M 202220232024 $27.7M $37.1M ▲ +33.9%
Total plan assets by year, all Lowell Observatory plans on file
Year Plans Participants Total Assets
2022 1 128 $28M
2023 1 150 $33M
2024 1 130 $37M

Nearby Other Plans in Arizona

Peer Other plans, same state, same plan type, ranked by total assets.

Lowell Observatory 403(b) Retirement Annuity Plan vs. nearby Other plans in Arizona, assets vs. participants

Lowell Observatory 403(b) Retirement Annuity Plan vs. nearby Other plans in Arizona, assets vs. participants Scatter plot of 6 data points. -500005000100001500020000 -0.500.511.5 Total assets ($B) Participants Lowell Observatory 4…Honor Health 403(b) …Operating Engineers …El Rio Santa Cruz Ne…Banner Health Employ…Kingman Healthcare, …
Lowell Observatory 403(b) Retirement Annuity Plan vs. nearby Other plans in Arizona, assets vs. participants

Similar-Sized Other Plans Nationally

Other plans in other states closest to Lowell Observatory 403(b) Retirement Annuity Plan by total assets, not by location.

Frequently Asked Questions

How did Lowell Observatory 403(b) Retirement Annuity Plan assets move in 2024?
Lowell Observatory 403(b) Retirement Annuity Plan grew at a solid clip - up 12.4% during 2024, from $33M to $37M. Reported net income was $4M.
How have Lowell Observatory plan assets changed over time?
Across 3 plan years on file (2022-2024), Lowell Observatory's sponsor-wide assets grew 33.9%, from $28M to $37M.
Where does Lowell Observatory 403(b) Retirement Annuity Plan rank by assets among Form 5500 filers?
Lowell Observatory 403(b) Retirement Annuity Plan ranks in the 80th 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 Other plans are similar in size to Lowell Observatory 403(b) Retirement Annuity Plan?
Among Other plans in other states, the closest by assets is University Hospital 403(b) Plan in KY ($37M, 1,119 participants).

Next read for Lowell Observatory 403(b) Retirement Ann…

Filing takeaways

Ways to act on Lowell Observatory 403(b) Retirement Annuity Plan's numbers.