401(k) · DOL Form 5500 · 2022

Mimecast North America, Inc. 401(k) Plan

Data updated 2026-08-25

$49M
Total assets Below avg plan size
694
Participants Below avg headcount
88th
Percentile by assets National rank
$71,287
Avg per participant Below avg balance/head
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Official DOL plan name: Mimecast North America, Inc. 401(k) Plan · Sponsored by Mimecast North America, Inc. · Massachusetts · Professional & Technical Services

$49M in assets, 694 participants

Mimecast North America, Inc.'s Mimecast North America, Inc. 401(k) Plan reported $49M in total assets and 694 participants in its 2022 DOL Form 5500 filing, ranking in the 88th 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.

  • #19,184 in Professional & Technical Services (21,562 peers)

Where Mimecast North America, Inc. 401(k) Plan sits by assets

Mimecast North America, Inc. 401(k) Plan sits in the top quartile of all filed plans by assets, $49M for 694 participants (~$71,287/participant), up 2.8% in 2022.

#19,184
in Professional & Technical Services (21,562 peers)
+2.8%
assets growth YoY
0.5×
vs typical plan assets (national mean)

Mimecast North America, Inc. 401(k) Plan's outsized position by total assets

Mimecast North America, Inc. 401(k) Plan vs every filed plan by assets

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

$49,473,257 Top 12% higher than 88% 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

Mimecast North America, 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. Mimecast North America, Inc. 401(k) Plan sits mid-pack in the medium band (694 participants).

EBSA filing schedule strip

Filing strip 260851633 · Mimecast North America, Inc. PY 2022 · 401(k)

Mimecast North America, Inc. 401(k) Plan · $49M · 694 · 88th

  • BOOK $49M
  • VS-ST 694
  • BOY 88th
  • SCH 401(k)
  • EBSA near Anne Arundel Dermatology, P.a., Profit Sharing Plan
  • PART ind #19184

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 Massachusetts →

Mimecast North America, Inc. 401(k) Plan in the asset neighbourhood

Gfr Retirement Savings Plan$49MMimecast North America, Inc. 401(k) PlanMimecast North America, Inc.…$49MAnne Arundel Dermatology, P.a., Profit Sharing PlanAnne Arundel Dermatology, P.…$49MBenesys, Inc. Employees' 401(k) Plan and TrustBenesys, Inc. Employees' 401…$49MVestcom Parent Holdings, Inc. Savings for Retirement PlanVestcom Parent Holdings, Inc…$49M
End-of-year total assets ($M) among Mimecast North America, Inc. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Scale-class filing particulars (2022)

Total Assets (Beginning of Year)$48M
Net Assets (End of Year)$49M
Net Income$1M
Employer EIN260851633
Plan Effective Date2009-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Mimecast North America, Inc.)

Sponsor-wide plan assets over time

All Mimecast North America, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$93M 88.18638117963408% vs 2022
2024 filing year
$40M$60M$80M$100M 202220232024 $49.5M $93.1M ▲ +88.2%
Year Plans Participants Total Assets
2022 1 694 $49M
2023 1 903 $70M
2024 1 840 $93M

Nearby 401(k) Plans in Massachusetts

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

Mimecast North America, Inc. 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -200000200004000060000 -100102030 Total assets ($B) Participants Mimecast North America, Inc. 401(k) Plan, Total assets ($B): 0.049473257 · Participants: 694Mimecast North America, Inc. 401(k) PlanFidelity Retirement Savings Plan, Total assets ($B): 22.953563448 · Participants: 52036Fidelity Retirement Savings PlanLiberty Mutual 401(k) Plan, Total assets ($B): 8.79802945 · Participants: 32843Liberty Mutual 401(k) PlanMassachusetts Institute of Technology Supplemental 401(k) Plan, Total assets ($B): 5.810585521 · Participants: 13690Massachusetts Institute of Technology Supplemental 401(k) PlanPhilips North America 401(k) Plan, Total assets ($B): 5.180251859 · Participants: 19750Philips North America 401(k) PlanBoston Scientific Corporation 401(k) Retirement Savings Plan, Total assets ($B): 4.853752256 · Participants: 18359Boston Scientific Corporation 401(k) Retirement Savings Plan
Mimecast North America, Inc. 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Mimecast North America, Inc. 401(k) Plan side-by-side with 3 peers →

Mimecast North America, Inc. 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is Anne Arundel Dermatology, P.a., Profit Sharing Plan in MD ($49M); by covered participants it is Eqt Corporation Employee Savings Plan in PA (694 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (694 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 Mimecast North America, Inc. 401(k) Plan assets move in 2022? ▼
Mimecast North America, Inc. 401(k) Plan edged up modestly - up 2.8% during 2022, from $48M to $49M. Reported net income was $1M.
How have Mimecast North America, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Mimecast North America, Inc.'s sponsor-wide assets grew 88.2%, from $49M to $93M.
Where does Mimecast North America, Inc. 401(k) Plan rank by assets among Form 5500 filers? ▼
Mimecast North America, Inc. 401(k) Plan ranks in the 88th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Mimecast North America, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Anne Arundel Dermatology, P.a., Profit Sharing Plan in MD ($49M, 1,075 participants).
Which 401(k) plans cover a similar participant headcount to Mimecast North America, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Eqt Corporation Employee Savings Plan in PA (694 participants, $220M 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 260851633.

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.