401(k) · DOL Form 5500 · 2024

Mountainside Treatment Center 401(k) Plan

Data updated 2026-08-25

$10M
Total assets Small plan by assets
335
Participants Below avg headcount
56th
Percentile by assets National rank
$30,304
Avg per participant Low balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Mountainside Retirement Savings Plan · Sponsored by Mountainside Treatment Center · Connecticut · Healthcare & Social Assistance

$10M in assets, 335 participants

Mountainside Treatment Center's Mountainside Retirement Savings Plan reported $10M in total assets and 335 participants in its 2024 DOL Form 5500 filing, ranking in the 56th 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.

  • #10,419 in Healthcare & Social Assistance (16,916 peers)

Coverage in Connecticut

Mountainside Retirement Savings Plan covers 335 participants in Connecticut, about 47% of the average Connecticut filer (state average ~718 per filing). Assets: $10M.

#10,419
in Healthcare & Social Assistance (16,916 peers)
+21.0%
assets growth YoY

Mountainside Retirement Savings Plan's mid-pack asset rank among Healthcare & Social Assistance and all filers

Mountainside Retirement Savings Plan vs every filed plan by assets

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

$10,151,946 Top 44% higher than 56% 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

Mountainside Retirement Savings Plan among mid-size filed plans by headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Mountainside Retirement Savings Plan sits mid-pack in the medium band (335 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Mountainside Retirement Savings Plan reported net income rose from $1M in the plan year 2023 filing to $2M in the plan year 2024 filing.
  • Mountainside Retirement Savings Plan end-of-year assets rose from $8M in the plan year 2023 filing to $10M in the plan year 2024 filing.
  • Mountainside Retirement Savings Plan reported participants rose from 312 in the plan year 2023 filing to 335 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Form 5500 schedule snapshot

Filing strip 270334267 · Mountainside Treatment Center PY 2024 · 401(k)

Mountainside Retirement Savings Plan · $10M · 335 · 56th

  • EOY $10M
  • 5500 335
  • ASSETS 56th
  • PCT 401(k)
  • EIN near Precision Laboratories, LLC Profit Sharing & Incentive Savings Plan
  • RANK ind #10419

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 Healthcare & Social Assistance retirement plans → · Plans in Connecticut →

Mountainside Retirement Savings Plan in the asset neighbourhood

Mountainside Retirement Savings PlanMountainside Retirement Savi…$10MPrecision Laboratories, LLC Profit Sharing & Incentive Savings PlanPrecision Laboratories, LLC …$10MIpmg 401(k) Retirement Plan$10MSpay 401(k) Plan$10MInterviewstreet Inc, Dba HackerrInterviewstreet Inc, Dba Hac…$10M
End-of-year total assets ($M) among Mountainside Retirement Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Connecticut filing particulars

Total Assets (Beginning of Year)$8M
Net Assets (End of Year)$10M
Net Income$2M
Employer EIN270334267
Plan Effective Date2002-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Mountainside Treatment Center)

Sponsor-wide plan assets over time

All Mountainside Treatment Center plans reported in each filing year

Latest sponsor-wide plan assets
$10M 41.765413300325314% vs 2022
2024 filing year
$6M$7M$8M$9M$10M$11M 202220232024 $7.16M $10.2M ▲ +41.8%
Year Plans Participants Total Assets
2022 1 301 $7M
2023 1 312 $8M
2024 1 335 $10M

Nearby 401(k) Plans in Connecticut

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

Mountainside Retirement Savings Plan vs. nearby 401(k) plans in Connecticut, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -20020406080 Total assets ($B) Participants Mountainside Retirement Savings Plan, Total assets ($B): 0.010151946 · Participants: 335Mountainside Retirement Savings PlanRtx Savings Plan, Total assets ($B): 58.647425 · Participants: 124876Rtx Savings PlanCiti Retirement Savings Plan, Total assets ($B): 23.241033081 · Participants: 78741Citi Retirement Savings PlanThe Hartford Investment and Savings Plan, Total assets ($B): 7.183243 · Participants: 18614The Hartford Investment and Savings PlanEversource 401(k) Plan, Total assets ($B): 4.046347175 · Participants: 10041Eversource 401(k) PlanXerox Corporation Savings Plan, Total assets ($B): 3.976943 · Participants: 9876Xerox Corporation Savings Plan
Mountainside Retirement Savings Plan vs. nearby 401(k) plans in Connecticut, assets vs. participants
Compare Mountainside Retirement Savings Plan side-by-side with 3 peers →

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

Outside Connecticut, the nearest 401(k) by assets is Precision Laboratories, LLC Profit Sharing & Incentive Savings Plan in WI ($10M); by covered participants it is Enstar (US) Inc. 401(k) Plan in FL (335 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($10M here).

Similar participant headcount

Nearest other-state filings by covered participants (335 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 Mountainside Retirement Savings Plan assets move in 2024? ▼
Mountainside Retirement Savings Plan grew sharply - up 21.0% during 2024, from $8M to $10M. Reported net income was $2M.
How have Mountainside Treatment Center plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Mountainside Treatment Center's sponsor-wide assets grew 41.8%, from $7M to $10M.
Which 401(k) plans are similar in size to Mountainside Retirement Savings Plan? ▼
Among 401(k) plans in other states, the closest by assets is Precision Laboratories, LLC Profit Sharing & Incentive Savings Plan in WI ($10M, 59 participants).
Which 401(k) plans cover a similar participant headcount to Mountainside Retirement Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Enstar (US) Inc. 401(k) Plan in FL (335 participants, $134M 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 270334267.

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.