Defined Benefit (Pension) · DOL Form 5500 · 2024

Merck & Co., Inc. Pension Plan

Data updated 2026-08-25

$10.1B
Total assets Mega-plan scale
26,843
Participants Very large workforce
100th
Percentile by assets National rank
$375,893
Avg per participant High balance/head
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Official DOL plan name: Merck US Pension Plan · Sponsored by Merck & Co., Inc. · New Jersey · Manufacturing

$10.1B in assets, 26,843 participants

Merck & Co., Inc.'s Merck US Pension Plan reported $10.1B in total assets and 26,843 participants in its 2024 DOL Form 5500 filing, ranking in the 100th 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.

  • #17,721 in Manufacturing (17,777 peers)

Coverage in New Jersey

Merck US Pension Plan covers 26,843 participants in New Jersey, 32x the typical New Jersey plan (state average ~844 per filing). Assets: $10.1B.

#17,721
in Manufacturing (17,777 peers)
-1.3%
assets change YoY
101×
vs typical plan assets (national mean)

The plan reported a net loss of $135M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Merck US Pension Plan's outsized position by total assets

Merck US Pension Plan vs every filed plan by assets

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

$10,090,083,286 Highest reported value at or above every one 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

Merck US Pension Plan's mega-plan peer group by participant headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Merck US Pension Plan is a mega filing (26,843 participants), the rightmost band on the breakdown.

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Merck US Pension Plan reported net income fell from $655M in the plan year 2023 filing to -$135M in the plan year 2024 filing.
  • Merck US Pension Plan reported participants rose from 25,223 in the plan year 2023 filing to 26,843 in the plan year 2024 filing.
  • Merck US Pension Plan end-of-year assets fell from $10.2B in the plan year 2023 filing to $10.1B in the plan year 2024 filing.

See the national 2023→2024 release diff →

Form 5500 schedule snapshot

Filing strip 221918501 · Merck & Co., Inc. PY 2024 · Defined Benefit (Pension)

Merck US Pension Plan · $10.1B · 26,843 · 100th

  • BOY $10.1B
  • BOY 26,843
  • BOY 100th
  • BOY Defined Benefit (Pension)
  • BOY near The Citigroup Pension Plan
  • BOY ind #17721

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 Manufacturing retirement plans → · Plans in New Jersey →

Merck US Pension Plan in the asset neighbourhood

Pension and Retirement Plan$10.4BFca US LLC UAW Pension AgreementFca US LLC UAW Pension Agree…$10.3BMerck US Pension Plan$10.1BThe Citigroup Pension Plan$10.0BPfizer Consolidated Pension PlanPfizer Consolidated Pension …$10.0B
End-of-year total assets ($B) among Merck US Pension Plan and nearest nationwide Defined Benefit (Pension) peers. Source: DOL Form 5500 plan year 2024.

New Jersey filing particulars

Total Assets (Beginning of Year)$10.2B
Net Assets (End of Year)$10.1B
Net Income-$135M
Employer EIN221918501
Plan Effective Date1956-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Merck & Co., Inc.)

Sponsor-wide plan assets over time

All Merck & Co., Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$26.3B 18.13047230036898% vs 2022
2024 filing year
$20B$22B$24B$26B$28B 202220232024 $22.2B $26.3B ▲ +18.1%
Year Plans Participants Total Assets
2022 4 55,803 $22.2B
2023 4 57,497 $24.8B
2024 4 59,874 $26.3B

Nearby Defined Benefit (Pension) Plans in New Jersey

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

Merck US Pension Plan vs. nearby Defined Benefit (Pension) plans in New Jersey, assets vs. participants Scatter plot of 6 data points. 020000400006000080000100000 510152025 Total assets ($B) Participants Merck US Pension Plan, Total assets ($B): 10.090083286 · Participants: 26843Merck US Pension PlanRetirement Plan of Johnson and Johnson, Total assets ($B): 21.095569114 · Participants: 37882Retirement Plan of Johnson and JohnsonJPMorgan Chase Retirement Plan, Total assets ($B): 16.066557714 · Participants: 83812JPMorgan Chase Retirement PlanNokia Retirement Income Plan, Total assets ($B): 12.855309 · Participants: 7280Nokia Retirement Income PlanThe Prudential Merged Retirement Plan, Total assets ($B): 12.025028912 · Participants: 16233The Prudential Merged Retirement PlanMetlife Retirement Plan, Total assets ($B): 7.90973414 · Participants: 13263Metlife Retirement Plan
Merck US Pension Plan vs. nearby Defined Benefit (Pension) plans in New Jersey, assets vs. participants

Scale composition for Merck US Pension Plan

Merck US Pension Plan reports $10.1B in end-of-year assets across 26,843 participants (0.082% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.029% of 93,925,755 covered participants) - about $375,893 per participant (2.7x the national average assets-per-participant) . Net income for plan year 2024 was -$135M.

This plan identity (EIN 221918501, plan #003) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $9.6B to $10.1B (+5.4%) while covered participants moved from 23,981 to 26,843 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 23,981 $9.6B Open filing
2023 25,223 $10.2B Open filing
2024 · index core 26,843 $10.1B This page

The same sponsor also keeps 3 other index-core plans on PlainRetire:

Merck US Pension Plan's out-of-state Defined Benefit (Pension) peers by assets and headcount

Outside New Jersey, the nearest Defined Benefit (Pension) by assets is The Citigroup Pension Plan in CT ($10.0B); by covered participants it is Northwell Health Pension Plan in NY (26,950 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($10.1B here).

Similar participant headcount

Nearest other-state filings by covered participants (26,843 participants); asset peers above are excluded.

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 Merck US Pension Plan assets move in 2024? ▼
Merck US Pension Plan edged down modestly - down 1.3% during 2024, from $10.2B to $10.1B. Reported net income was -$135M.
How have Merck & Co., Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Merck & Co., Inc.'s sponsor-wide assets grew 18.1%, from $22.2B to $26.3B.
Where does Merck US Pension Plan rank by assets among Form 5500 filers? ▼
Merck US Pension Plan ranks in the 100th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (among the largest 1% of all filed plans).
Which Defined Benefit (Pension) plans are similar in size to Merck US Pension Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by assets is The Citigroup Pension Plan in CT ($10.0B, 15,906 participants).
Which Defined Benefit (Pension) plans cover a similar participant headcount to Merck US Pension Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by covered participants is Northwell Health Pension Plan in NY (26,950 participants, $2.8B in assets).