401(k) · DOL Form 5500 · 2024
Mainline Investment Partners, LLC 401(k) Plan
Data updated 2026-08-25
- $20M
- Total assets Small plan by assets
- 117
- Participants Small participant base
- 71st
- Percentile by assets National rank
- $175,164
- Avg per participant Above avg balance/head
Official DOL plan name: Mainline Merion 401(k) Plan · Sponsored by Mainline Investment Partners, LLC · Pennsylvania · Finance & Insurance
$20M in assets, 117 participants
Mainline Investment Partners, LLC's Mainline Merion 401(k) Plan reported $20M in total assets and 117 participants in its 2024 DOL Form 5500 filing, ranking in the 71st 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.
- #4,785 in Finance & Insurance (8,549 peers)
Coverage in Pennsylvania
Mainline Merion 401(k) Plan covers 117 participants in Pennsylvania, about 14% of the average Pennsylvania filer (state average ~822 per filing). Assets: $20M.
- #4,785
- in Finance & Insurance (8,549 peers)
- +18.1%
- assets growth YoY
Mainline Merion 401(k) Plan's outsized position by total assets
Mainline Merion 401(k) Plan vs every filed plan by assets
End-of-year total assets · plan year 2024 · DOL Form 5500
$20,494,200 Top 29% higher than 71% of 123,620 filed plans
Dashed line + filled bar = this entry, among filed plans.
Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2024
Mainline Merion 401(k) 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. Mainline Merion 401(k) Plan sits mid-pack in the medium band (117 participants).
What changed between DOL Form 5500 filings
plan year 2023 → plan year 2024
- Mainline Merion 401(k) Plan end-of-year assets rose from $17M in the plan year 2023 filing to $20M in the plan year 2024 filing.
- Mainline Merion 401(k) Plan reported net income fell from $3M in the plan year 2023 filing to $3M in the plan year 2024 filing.
Form 5500 schedule snapshot
Filing strip 452845118 · Mainline Investment Partners, LLC PY 2024 · 401(k)
Mainline Merion 401(k) Plan · $20M · 117 · 71st
- PHOTO $20M
- IND 117
- EOY 71st
- 5500 401(k)
- ASSETS near Absentee Shawnee Tribe Savings Incentive Plan
- PCT ind #4785
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 Finance & Insurance retirement plans → · Plans in Pennsylvania →
Mainline Merion 401(k) Plan in the asset neighbourhood
Pennsylvania filing particulars
| Total Assets (Beginning of Year) | $17M |
|---|---|
| Net Assets (End of Year) | $20M |
| Net Income | $3M |
| Employer EIN | 452845118 |
| Plan Effective Date | 2005-07-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Mainline Investment Partners, LLC)
Sponsor-wide plan assets over time
All Mainline Investment Partners, LLC plans reported in each filing year
- Latest sponsor-wide plan assets
- $20M 46.435979256224805% vs 2022
- 2024 filing year
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 1 | 185 | $14M |
| 2023 | 1 | 116 | $17M |
| 2024 | 1 | 117 | $20M |
Nearby 401(k) Plans in Pennsylvania
Peer 401(k) plans, same state, same plan type, ranked by total assets.
- Comcast Corporation Retirement - Investment Plan $19.7B · 90,495
- The Cigna Group 401(k) Plan $14.2B · 63,634
- The Vanguard Retirement and Savings Plan $11.1B · 18,066
- Thermo Fisher Scientific Inc. 401(k) Retirement Plan $10.3B · 36,150
- The PNC Financial Services Group, Inc. Incentive Savings Plan $10.2B · 54,604
Mainline Merion 401(k) Plan's out-of-state 401(k) peers by assets and headcount
Outside Pennsylvania, the nearest 401(k) by assets is Absentee Shawnee Tribe Savings Incentive Plan in OK ($20M); by covered participants it is Quality Beverage 401(k) Plan in MA (117 participants). Same-state nearby plans are listed separately above.
Closest by plan assets
Nearest other-state filings by tot_assets_eoy ($20M here).
- Absentee Shawnee Tribe Savings Incentive Plan (OK) $20M · 567
- Abb E-Mobility Inc. Retirement Savings Plan (NC) $20M · 261
- Great Neck Tools, Inc. 401(k) Plan (NY) $20M · 266
- Oregon Precision Industries, Inc. 401(k) Plan (OR) $20M · 274
Similar participant headcount
Nearest other-state filings by covered participants (117 participants); asset peers above are excluded.
- Quality Beverage 401(k) Plan (MA) 117 · 0 off
- Skytap, Inc. Retirement Plan (WA) 117 · 0 off
- International Biomedical Employee's Profit Sharing Plan (TX) 117 · 0 off
- Williams-Keepers LLC 401(k) Plan (MO) 117 · 0 off
DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.