401(k) · DOL Form 5500 · 2024

Costar Realty Information, Inc. 401(k) Plan

Data updated 2026-08-25

$753M
Total assets Above avg plan size
5,390
Participants Above avg headcount
98th
Percentile by assets National rank
$139,684
Avg per participant Near avg balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Costar Realty Information, Inc. 401(k) Retirement Plan · Sponsored by Costar Realty Information, Inc. · Virginia · Real Estate

$753M in assets, 5,390 participants

Costar Realty Information, Inc.'s Costar Realty Information, Inc. 401(k) Retirement Plan reported $753M in total assets and 5,390 participants in its 2024 DOL Form 5500 filing, ranking in the 98th 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.

  • #4,591 in Real Estate (4,605 peers)

Coverage in Virginia

Costar Realty Information, Inc. 401(k) Retirement Plan covers 5,390 participants in Virginia, 6.9x the typical Virginia plan (state average ~782 per filing). Assets: $753M.

#4,591
in Real Estate (4,605 peers)
+22.2%
assets growth YoY
7.6×
vs typical plan assets (national mean)

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

Costar Realty Information, Inc. 401(k) Retirement Plan vs every filed plan by assets

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

$752,897,352 Top 2% higher than 98% 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

Costar Realty Information, Inc. 401(k) Retirement Plan's large-plan peer group by participant headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Costar Realty Information, Inc. 401(k) Retirement Plan lands in the large band (5,390 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Costar Realty Information, Inc. 401(k) Retirement Plan end-of-year assets rose from $616M in the plan year 2023 filing to $753M in the plan year 2024 filing.
  • Costar Realty Information, Inc. 401(k) Retirement Plan reported net income fell from $151M in the plan year 2023 filing to $137M in the plan year 2024 filing.
  • Costar Realty Information, Inc. 401(k) Retirement Plan reported participants rose from 5,010 in the plan year 2023 filing to 5,390 in the plan year 2024 filing.

See the national 2023→2024 release diff →

DOL schedule card

Filing strip 522134617 · Costar Realty Information, Inc. PY 2024 · 401(k)

Costar Realty Information, Inc. 401(k) Retirement Plan · $753M · 5,390 · 98th

  • IND $753M
  • IND 5,390
  • IND 98th
  • IND 401(k)
  • IND near Barnes & Thornburg LLP Profit Sharing Plan
  • IND ind #4591

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 Virginia →

Costar Realty Information, Inc. 401(k) Retirement Plan in the asset neighbourhood

Barnes & Thornburg LLP Profit Sharing PlanBarnes & Thornburg LLP Profi…$754MCostar Realty Information, Inc. 401(k) Retirement PlanCostar Realty Information, I…$753MCohnreznick LLC 401(k) Profit Sharing PlanCohnreznick LLC 401(k) Profi…$751MArconic Corp. Hourly 401(k) PlanArconic Corp. Hourly 401(k) …$751MCozen Oconnor Profit Sharing Plan aCozen Oconnor Profit Sharing…$751M
End-of-year total assets ($M) among Costar Realty Information, Inc. 401(k) Retirement Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Virginia filing particulars

Total Assets (Beginning of Year)$616M
Net Assets (End of Year)$753M
Net Income$137M
Employer EIN522134617
Plan Effective Date1997-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Costar Realty Information, Inc.)

Sponsor-wide plan assets over time

All Costar Realty Information, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$753M 62.059067373499246% vs 2022
2024 filing year
$400M$500M$600M$700M$800M 202220232024 $465M $753M ▲ +62.1%
Year Plans Participants Total Assets
2022 1 4,191 $465M
2023 1 5,010 $616M
2024 1 5,390 $753M

Nearby 401(k) Plans in Virginia

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

Costar Realty Information, Inc. 401(k) Retirement Plan vs. nearby 401(k) plans in Virginia, assets vs. participants Scatter plot of 6 data points. 050000100000150000 -1001020304050 Total assets ($B) Participants Costar Realty Information, Inc. 401(k) Retirement Plan, Total assets ($B): 0.752897352 · Participants: 5390Costar Realty Information, Inc. 401(k) Retirement 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
Costar Realty Information, Inc. 401(k) Retirement Plan vs. nearby 401(k) plans in Virginia, assets vs. participants

Scale composition for Costar Realty Information, Inc. 401(k) Retirement Plan

Costar Realty Information, Inc. 401(k) Retirement Plan reports $753M in end-of-year assets across 5,390 participants (0.006% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.006% of 93,925,755 covered participants) - about $139,684 per participant (1.0x the national average assets-per-participant) . Net income for plan year 2024 was $137M.

This plan identity (EIN 522134617, plan #001) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $465M to $753M (+62.1%) while covered participants moved from 4,191 to 5,390 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 4,191 $465M Open filing
2023 5,010 $616M Open filing
2024 · index core 5,390 $753M This page

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

Outside Virginia, the nearest 401(k) by assets is Barnes & Thornburg LLP Profit Sharing Plan in IN ($754M); by covered participants it is Illumina, Inc. 401(k) Plan in CA (5,389 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($753M here).

Similar participant headcount

Nearest other-state filings by covered participants (5,390 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 Costar Realty Information, Inc. 401(k) Retirement Plan assets move in 2024? ▼
Costar Realty Information, Inc. 401(k) Retirement Plan grew sharply - up 22.2% during 2024, from $616M to $753M. Reported net income was $137M.
How have Costar Realty Information, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Costar Realty Information, Inc.'s sponsor-wide assets grew 62.1%, from $465M to $753M.
Where does Costar Realty Information, Inc. 401(k) Retirement Plan rank by assets among Form 5500 filers? ▼
Costar Realty Information, Inc. 401(k) Retirement Plan ranks in the 98th 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 Costar Realty Information, Inc. 401(k) Retirement Plan? ▼
Among 401(k) plans in other states, the closest by assets is Barnes & Thornburg LLP Profit Sharing Plan in IN ($754M, 1,475 participants).
Which 401(k) plans cover a similar participant headcount to Costar Realty Information, Inc. 401(k) Retirement Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Illumina, Inc. 401(k) Plan in CA (5,389 participants, $1.1B in assets).