Defined Benefit (Pension) · DOL Form 5500 · 2024

The Andover Companies Pension Plan

Data updated 2026-08-25

$459M
Total assets Above avg plan size
283
Participants Below avg headcount
97th
Percentile by assets National rank
$1.6M
Avg per participant High balance/head
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Official DOL plan name: Merrimack Mutual Fire Insurance Company Retirement Plan · Sponsored by The Andover Companies · Massachusetts · Finance & Insurance

$459M in assets, 283 participants

The Andover Companies's Merrimack Mutual Fire Insurance Company Retirement Plan reported $459M in total assets and 283 participants in its 2024 DOL Form 5500 filing, ranking in the 97th 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.

  • #8,095 in Finance & Insurance (8,549 peers)

Coverage in Massachusetts

Merrimack Mutual Fire Insurance Company Retirement Plan covers 283 participants in Massachusetts, about 43% of the average Massachusetts filer (state average ~659 per filing). Assets: $459M.

#8,095
in Finance & Insurance (8,549 peers)
+17.7%
assets growth YoY
4.6×
vs typical plan assets (national mean)

Merrimack Mutual Fire Insurance Company Retirement Plan's outsized position by total assets

Merrimack Mutual Fire Insurance Company Retirement Plan vs every filed plan by assets

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

$459,151,299 Top 3% higher than 97% 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

Merrimack Mutual Fire Insurance Company Retirement 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. Merrimack Mutual Fire Insurance Company Retirement Plan sits mid-pack in the medium band (283 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Merrimack Mutual Fire Insurance Company Retirement Plan reported net income rose from $26M in the plan year 2023 filing to $69M in the plan year 2024 filing.
  • Merrimack Mutual Fire Insurance Company Retirement Plan end-of-year assets rose from $390M in the plan year 2023 filing to $459M in the plan year 2024 filing.
  • Merrimack Mutual Fire Insurance Company Retirement Plan reported participants rose from 259 in the plan year 2023 filing to 283 in the plan year 2024 filing.

See the national 2023→2024 release diff →

EBSA filing schedule strip

Filing strip 041614490 · The Andover Companies PY 2024 · Defined Benefit (Pension)

Merrimack Mutual Fire Insurance Company Retirement Plan · $459M · 283 · 97th

  • RANK $459M
  • PHOTO 283
  • IND 97th
  • EOY Defined Benefit (Pension)
  • 5500 near St. Lukes Health Network Pension Plan
  • ASSETS ind #8095

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 Massachusetts →

Merrimack Mutual Fire Insurance Company Retirement Plan in the asset neighbourhood

Alabama Farmers Federation and Affiliated Companies Retirement PlanAlabama Farmers Federation a…$460MMoody's Corporation Retirement AccountMoody's Corporation Retireme…$460MMerrimack Mutual Fire Insurance Company Retirement PlanMerrimack Mutual Fire Insura…$459MSt. Lukes Health Network Pension PlanSt. Lukes Health Network Pen…$459MPension Plan for All Eligible Employees of CranePension Plan for All Eligibl…$459M
End-of-year total assets ($M) among Merrimack Mutual Fire Insurance Company Retirement Plan and nearest nationwide Defined Benefit (Pension) peers. Source: DOL Form 5500 plan year 2024.

Massachusetts filing particulars

Total Assets (Beginning of Year)$390M
Net Assets (End of Year)$459M
Net Income$69M
Employer EIN041614490
Plan Effective Date1944-04-18
Filing StatusFILING RECEIVED

Sponsor Plan History (The Andover Companies)

Sponsor-wide plan assets over time

All The Andover Companies plans reported in each filing year

Latest sponsor-wide plan assets
$540M 28.135523096443453% vs 2022
2024 filing year
$400M$450M$500M$550M$600M 202220232024 $421M $540M ▲ +28.1%
Year Plans Participants Total Assets
2022 2 456 $421M
2023 2 524 $460M
2024 2 601 $540M

Nearby Defined Benefit (Pension) Plans in Massachusetts

Peer Defined Benefit (Pension) plans, same state, same plan type, ranked by total assets.

Merrimack Mutual Fire Insurance Company Retirement Plan vs. nearby Defined Benefit (Pension) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -5051015 Total assets ($B) Participants Merrimack Mutual Fire Insurance Company Retirement Plan, Total assets ($B): 0.459151299 · Participants: 283Merrimack Mutual Fire Insurance Company Retirement PlanConsolidated Cash Balance Program of Mass General Brigham and Member Organizations, Total assets ($B): 11.586293172 · Participants: 60621Consolidated Cash Balance Program of Mass General Brigham and Member OrganizationsNew England Teamsters Pension Fund, Total assets ($B): 9.093299462 · Participants: 21577New England Teamsters Pension FundLiberty Mutual Retirement Benefit Plan, Total assets ($B): 6.250686483 · Participants: 34910Liberty Mutual Retirement Benefit PlanMassachusetts Institute of Technology Basic Retirement Plan, Total assets ($B): 5.888715533 · Participants: 12533Massachusetts Institute of Technology Basic Retirement PlanN. Atlantic States Carp. Pension Fund, Total assets ($B): 5.086051556 · Participants: 16946N. Atlantic States Carp. Pension Fund
Merrimack Mutual Fire Insurance Company Retirement Plan vs. nearby Defined Benefit (Pension) plans in Massachusetts, assets vs. participants

Merrimack Mutual Fire Insurance Company Retirement Plan's out-of-state Defined Benefit (Pension) peers by assets and headcount

Outside Massachusetts, the nearest Defined Benefit (Pension) by assets is St. Lukes Health Network Pension Plan in PA ($459M); by covered participants it is Plumbers & Pipefitters Local 152 Pension Tr Fund in WV (283 participants). Same-state nearby plans are listed separately above.

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 Merrimack Mutual Fire Insurance Company Retirement Plan assets move in 2024?
Merrimack Mutual Fire Insurance Company Retirement Plan grew sharply - up 17.7% during 2024, from $390M to $459M. Reported net income was $69M.
How have The Andover Companies plan assets changed over time?
Across 3 plan years on file (2022-2024), The Andover Companies's sponsor-wide assets grew 28.1%, from $421M to $540M.
Where does Merrimack Mutual Fire Insurance Company Retirement Plan rank by assets among Form 5500 filers?
Merrimack Mutual Fire Insurance Company Retirement Plan ranks in the 97th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 5% of all filed plans by assets).
Which Defined Benefit (Pension) plans are similar in size to Merrimack Mutual Fire Insurance Company Retirement Plan?
Among Defined Benefit (Pension) plans in other states, the closest by assets is St. Lukes Health Network Pension Plan in PA ($459M, 2,221 participants).
Which Defined Benefit (Pension) plans cover a similar participant headcount to Merrimack Mutual Fire Insurance Company Retirement Plan?
Among Defined Benefit (Pension) plans in other states, the closest by covered participants is Plumbers & Pipefitters Local 152 Pension Tr Fund in WV (283 participants, $59M in assets).