Other · DOL Form 5500 · 2023

Windels Marx Lane & Mittendorf, LLP Retirement Plan

Data updated 2026-08-25

$37M
Total assets Below avg plan size
109
Participants Small participant base
82nd
Percentile by assets National rank
$338,154
Avg per participant High balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust · Sponsored by Windels Marx Lane & Mittendorf, LLP · New York · Professional & Technical Services

$37M in assets, 109 participants

Windels Marx Lane & Mittendorf, LLP's Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust reported $37M in total assets and 109 participants in its 2023 DOL Form 5500 filing, ranking in the 82nd 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.

  • #16,815 in Professional & Technical Services (20,321 peers)

Coverage in New York

Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust covers 109 participants in New York, about 14% of the average New York filer (state average ~798 per filing). Assets: $37M.

#16,815
in Professional & Technical Services (20,321 peers)
+20.3%
assets growth YoY
0.4×
vs typical plan assets (national mean)

Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust's outsized position by total assets

Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$36,858,819 Top 18% higher than 82% of 127,068 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 2023

Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust among mid-size filed plans by headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust sits mid-pack in the medium band (109 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust reported net income rose from -$6M in the plan year 2022 filing to $6M in the plan year 2023 filing.
  • Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust reported participants fell from 196 in the plan year 2022 filing to 109 in the plan year 2023 filing.
  • Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust end-of-year assets rose from $31M in the plan year 2022 filing to $37M in the plan year 2023 filing.

See the national 2022→2023 release diff →

Published 5500 schedule card

Filing strip 132773235 · Windels Marx Lane & Mittendorf, LLP PY 2023 · Other

Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust · $37M · 109 · 82nd

  • EIN $37M
  • RANK 109
  • PHOTO 82nd
  • IND Other
  • EOY near Tiaa-Cref Retirement Plan for Staff and Faculty of Webb School
  • 5500 ind #16815

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 New York →

Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust in the asset neighbourhood

Elizabeth Glaser Pediatric Aids Foundation 403(b) PlanElizabeth Glaser Pediatric A…$37MChild Care Resource Center 403b Retirement Savings PlanChild Care Resource Center 4…$37MWindels Marx Lane & Mittendorf, LLP Retirement Plan and TrustWindels Marx Lane & Mittendo…$37MTiaa-Cref Retirement Plan for Staff and Faculty of Webb SchoolTiaa-Cref Retirement Plan fo…$37MWest Virginia University Research Corporation 403b Defined Contribution PlanWest Virginia University Res…$37M
End-of-year total assets ($M) among Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust and nearest nationwide Other peers. Source: DOL Form 5500 plan year 2023.

New York filing particulars

Total Assets (Beginning of Year)$31M
Net Assets (End of Year)$37M
Net Income$6M
Employer EIN132773235
Plan Effective Date1979-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Windels Marx Lane & Mittendorf, LLP)

Sponsor-wide plan assets over time

All Windels Marx Lane & Mittendorf, LLP plans reported in each filing year

Latest sponsor-wide plan assets
$112M 42.134319230456654% vs 2022
2024 filing year
$70M$80M$90M$100M$110M$120M 202220232024 $78.8M $112M ▲ +42.1%
Year Plans Participants Total Assets
2022 2 391 $79M
2023 2 303 $95M
2024 2 319 $112M

Nearby Other Plans in New York

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

Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust vs. nearby Other plans in New York, assets vs. participants Scatter plot of 6 data points. -200000200004000060000 -5051015 Total assets ($B) Participants Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust, Total assets ($B): 0.036858819 · Participants: 109Windels Marx Lane & Mittendorf, LLP Retirement Plan and TrustNorthwell Health 403(b) Plan, Total assets ($B): 9.888143307 · Participants: 48676Northwell Health 403(b) PlanThe Mount Sinai Medical Center 403(b) Retirement Plan, Total assets ($B): 8.498597037 · Participants: 30241The Mount Sinai Medical Center 403(b) Retirement PlanUniversity of Rochester Retirement Program, Total assets ($B): 7.214339559 · Participants: 28970University of Rochester Retirement ProgramMemorial Sloan Kettering Cancer Center Retirement Savings Plan, Total assets ($B): 5.59380214 · Participants: 22855Memorial Sloan Kettering Cancer Center Retirement Savings PlanRetirement Plan for Officers of Columbia University, Total assets ($B): 5.026291682 · Participants: 14407Retirement Plan for Officers of Columbia University
Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust vs. nearby Other plans in New York, assets vs. participants

Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust's out-of-state Other peers by assets and headcount

Outside New York, the nearest Other by assets is Tiaa-Cref Retirement Plan for Staff and Faculty of Webb School in TN ($37M); by covered participants it is The Harvard Management Company 403(b) Tax-Deferred Annuity Plan in MA (109 participants). Same-state nearby plans are listed separately above.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust assets move in 2023?
Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust grew sharply - up 20.3% during 2023, from $31M to $37M. Reported net income was $6M.
How have Windels Marx Lane & Mittendorf, LLP plan assets changed over time?
Across 3 plan years on file (2022-2024), Windels Marx Lane & Mittendorf, LLP's sponsor-wide assets grew 42.1%, from $79M to $112M.
Where does Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust rank by assets among Form 5500 filers?
Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust ranks in the 82nd percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top quartile of all filed plans by assets).
Which Other plans are similar in size to Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust?
Among Other plans in other states, the closest by assets is Tiaa-Cref Retirement Plan for Staff and Faculty of Webb School in TN ($37M, 257 participants).
Which Other plans cover a similar participant headcount to Windels Marx Lane & Mittendorf, LLP Retirement Plan and Trust?
Among Other plans in other states, the closest by covered participants is The Harvard Management Company 403(b) Tax-Deferred Annuity Plan in MA (109 participants, $51M in assets).