401(k) · DOL Form 5500 · 2022

Marinus Pharmaceuticals, Inc. 401(k) Plan

Data updated 2026-08-25

$7M
Total assets Small plan by assets
116
Participants Small participant base
59th
Percentile by assets National rank
$63,451
Avg per participant Low balance/head
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Official DOL plan name: Marinus Pharmaceuticals, Inc. 401(k) Plan · Sponsored by Marinus Pharmaceuticals, Inc. · Pennsylvania · Professional & Technical Services

$7M in assets, 116 participants

Marinus Pharmaceuticals, Inc.'s Marinus Pharmaceuticals, Inc. 401(k) Plan reported $7M in total assets and 116 participants in its 2022 DOL Form 5500 filing, ranking in the 59th 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.

  • #12,219 in Professional & Technical Services (21,562 peers)

Coverage in Pennsylvania

Marinus Pharmaceuticals, Inc. 401(k) Plan covers 116 participants in Pennsylvania, about 14% of the average Pennsylvania filer (state average ~822 per filing). Assets: $7M.

#12,219
in Professional & Technical Services (21,562 peers)
+27.2%
assets growth YoY

Marinus Pharmaceuticals, Inc. 401(k) Plan's mid-pack asset rank among Professional & Technical Services and all filers

Marinus Pharmaceuticals, Inc. 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$7,360,300 Top 41% higher than 59% of 139,123 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 2022

Marinus Pharmaceuticals, Inc. 401(k) Plan among mid-size filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Marinus Pharmaceuticals, Inc. 401(k) Plan sits mid-pack in the medium band (116 participants).

Published 5500 schedule card

Filing strip 200198082 · Marinus Pharmaceuticals, Inc. PY 2022 · 401(k)

Marinus Pharmaceuticals, Inc. 401(k) Plan · $7M · 116 · 59th

  • EIN $7M
  • RANK 116
  • PHOTO 59th
  • IND 401(k)
  • EOY near Vascular Surgery Group,Inc. 401(k) Profit Sharing Plan
  • 5500 ind #12219

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 Professional & Technical Services retirement plans → · Plans in Pennsylvania →

Marinus Pharmaceuticals, Inc. 401(k) Plan in the asset neighbourhood

Marinus Pharmaceuticals, Inc. 401(k) PlanMarinus Pharmaceuticals, Inc…$7MVascular Surgery Group,Inc. 401(k) Profit Sharing PlanVascular Surgery Group,Inc. …$7MMedia Advocates 401(k) Plan$7MEmploy Source Inc. 401(k) PlanEmploy Source Inc. 401(k) Pl…$7MCoosa Valley Credit Union Retirement Savings PlanCoosa Valley Credit Union Re…$7M
End-of-year total assets ($M) among Marinus Pharmaceuticals, Inc. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Pennsylvania filing particulars

Total Assets (Beginning of Year)$6M
Net Assets (End of Year)$7M
Net Income$2M
Employer EIN200198082
Plan Effective Date2007-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Marinus Pharmaceuticals, Inc.)

Sponsor-wide plan assets over time

All Marinus Pharmaceuticals, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$15M 99.34529842533593% vs 2022
2024 filing year
$5M$10M$15M$20M 202220232024 $7.36M $14.7M ▲ +99.3%
Year Plans Participants Total Assets
2022 1 116 $7M
2023 1 154 $12M
2024 1 166 $15M

Nearby 401(k) Plans in Pennsylvania

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

Marinus Pharmaceuticals, Inc. 401(k) Plan vs. nearby 401(k) plans in Pennsylvania, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -505101520 Total assets ($B) Participants Marinus Pharmaceuticals, Inc. 401(k) Plan, Total assets ($B): 0.0073603 · Participants: 116Marinus Pharmaceuticals, Inc. 401(k) PlanComcast Corporation Retirement - Investment Plan, Total assets ($B): 14.751564896 · Participants: 97769Comcast Corporation Retirement - Investment PlanCigna 401(k) Plan, Total assets ($B): 11.46087279 · Participants: 66147Cigna 401(k) PlanThe PNC Financial Services Group, Inc. Incentive Savings Plan, Total assets ($B): 8.11713 · Participants: 59451The PNC Financial Services Group, Inc. Incentive Savings PlanThe Vanguard Retirement and Savings Plan, Total assets ($B): 8.097254785 · Participants: 17073The Vanguard Retirement and Savings PlanThe Bank of New York Mellon Corporation 401(k) Savings Plan, Total assets ($B): 7.823164827 · Participants: 25071The Bank of New York Mellon Corporation 401(k) Savings Plan
Marinus Pharmaceuticals, Inc. 401(k) Plan vs. nearby 401(k) plans in Pennsylvania, assets vs. participants
Compare Marinus Pharmaceuticals, Inc. 401(k) Plan side-by-side with 3 peers →

Marinus Pharmaceuticals, Inc. 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Pennsylvania, the nearest 401(k) by assets is Vascular Surgery Group,Inc. 401(k) Profit Sharing Plan in CA ($7M); by covered participants it is Osprey Packs, Inc. 401(k) Profit Sharing Plan in CO (116 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (116 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Marinus Pharmaceuticals, Inc. 401(k) Plan assets move in 2022? ▼
Marinus Pharmaceuticals, Inc. 401(k) Plan grew sharply - up 27.2% during 2022, from $6M to $7M. Reported net income was $2M.
How have Marinus Pharmaceuticals, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Marinus Pharmaceuticals, Inc.'s sponsor-wide assets grew 99.3%, from $7M to $15M.
Which 401(k) plans are similar in size to Marinus Pharmaceuticals, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Vascular Surgery Group,Inc. 401(k) Profit Sharing Plan in CA ($7M, 25 participants).
Which 401(k) plans cover a similar participant headcount to Marinus Pharmaceuticals, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Osprey Packs, Inc. 401(k) Profit Sharing Plan in CO (116 participants, N/A in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 200198082.

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.