401(k) · DOL Form 5500 · 2023

Glaxosmithkline LLC 401(k) Plan

Data updated 2026-08-25

$8.1B
Total assets Very large vs avg
11,837
Participants Very large workforce
100th
Percentile by assets National rank
$682,008
Avg per participant High balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Gsk 401(k) Plan · Sponsored by Glaxosmithkline LLC · Pennsylvania · Manufacturing

$8.1B in assets, 11,837 participants

Glaxosmithkline LLC's Gsk 401(k) Plan reported $8.1B in total assets and 11,837 participants in its 2023 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.

  • #18,656 in Manufacturing (18,722 peers)

Coverage in Pennsylvania

Gsk 401(k) Plan covers 11,837 participants in Pennsylvania, 14x the typical Pennsylvania plan (state average ~822 per filing). Assets: $8.1B.

#18,656
in Manufacturing (18,722 peers)
+15.9%
assets growth YoY
81×
vs typical plan assets (national mean)

Gsk 401(k) Plan's outsized position by total assets

Gsk 401(k) Plan vs every filed plan by assets

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

$8,072,931,460 Highest reported value at or above every one 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

Gsk 401(k) Plan's mega-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Gsk 401(k) Plan is a mega filing (11,837 participants), the rightmost band on the breakdown.

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Gsk 401(k) Plan reported net income rose from -$1.6B in the plan year 2022 filing to $1.1B in the plan year 2023 filing.
  • Gsk 401(k) Plan reported participants fell from 14,527 in the plan year 2022 filing to 11,837 in the plan year 2023 filing.
  • Gsk 401(k) Plan end-of-year assets rose from $7.0B in the plan year 2022 filing to $8.1B in the plan year 2023 filing.

See the national 2022→2023 release diff →

Form 5500 schedule snapshot

Filing strip 231099050 · Glaxosmithkline LLC PY 2023 · 401(k)

Gsk 401(k) Plan · $8.1B · 11,837 · 100th

  • BOOK $8.1B
  • VS-ST 11,837
  • BOY 100th
  • SCH 401(k)
  • EBSA near Lowes 401(k) Plan
  • PART ind #18656

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 Pennsylvania →

Gsk 401(k) Plan in the asset neighbourhood

Insperity 401(k) Plan$8.1B401(k) Savings Plan$8.1BLowes 401(k) Plan$8.1BGsk 401(k) Plan$8.1BAdp Totalsource Retirement Savings PlanAdp Totalsource Retirement S…$8.0B
End-of-year total assets ($B) among Gsk 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Pennsylvania filing particulars

Total Assets (Beginning of Year)$7.0B
Net Assets (End of Year)$8.1B
Net Income$1.1B
Employer EIN231099050
Plan Effective Date1966-07-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Glaxosmithkline LLC)

Sponsor-wide plan assets over time

All Glaxosmithkline LLC plans reported in each filing year

Latest sponsor-wide plan assets
$11.7B 19.237894618480063% vs 2022
2024 filing year
$9B$10B$11B$12B 202220232024 $9.81B $11.7B ▲ +19.2%
Year Plans Participants Total Assets
2022 2 26,885 $9.8B
2023 2 20,278 $11.0B
2024 2 20,205 $11.7B

Nearby 401(k) Plans in Pennsylvania

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

Gsk 401(k) Plan vs. nearby 401(k) plans in Pennsylvania, assets vs. participants Scatter plot of 6 data points. 020000400006000080000100000 5101520 Total assets ($B) Participants Gsk 401(k) Plan, Total assets ($B): 8.07293146 · Participants: 11837Gsk 401(k) PlanComcast Corporation Retirement - Investment Plan, Total assets ($B): 17.368669862 · Participants: 93136Comcast Corporation Retirement - Investment PlanCigna 401(k) Plan, Total assets ($B): 13.003870935 · Participants: 66760Cigna 401(k) PlanThe Vanguard Retirement and Savings Plan, Total assets ($B): 9.765617477 · Participants: 18200The Vanguard Retirement and Savings PlanThe PNC Financial Services Group, Inc. Incentive Savings Plan, Total assets ($B): 9.339762 · Participants: 61697The PNC Financial Services Group, Inc. Incentive Savings PlanThe Bank of New York Mellon Corporation 401(k) Savings Plan, Total assets ($B): 8.955655142 · Participants: 25184The Bank of New York Mellon Corporation 401(k) Savings Plan
Gsk 401(k) Plan vs. nearby 401(k) plans in Pennsylvania, assets vs. participants
Compare Gsk 401(k) Plan side-by-side with 3 peers →

Scale composition for Gsk 401(k) Plan

Gsk 401(k) Plan reports $8.1B in end-of-year assets across 11,837 participants (0.066% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.013% of 93,925,755 covered participants) - about $682,008 per participant (4.9x the national average assets-per-participant) . Net income for plan year 2023 was $1.1B.

This plan identity (EIN 231099050, plan #002) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $7.0B to $8.8B (+26.3%) while covered participants moved from 14,527 to 12,435 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 14,527 $7.0B Open filing
2023 11,837 $8.1B This page
2024 · index core 12,435 $8.8B Open filing

The same sponsor also keeps 2 other index-core plans on PlainRetire:

Gsk 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Pennsylvania, the nearest 401(k) by assets is Lowes 401(k) Plan in NC ($8.1B); by covered participants it is Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan in CO (11,850 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($8.1B here).

Similar participant headcount

Nearest other-state filings by covered participants (11,837 participants); asset peers above are excluded.

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 Gsk 401(k) Plan assets move in 2023? ▼
Gsk 401(k) Plan grew sharply - up 15.9% during 2023, from $7.0B to $8.1B. Reported net income was $1.1B.
How have Glaxosmithkline LLC plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Glaxosmithkline LLC's sponsor-wide assets grew 19.2%, from $9.8B to $11.7B.
Where does Gsk 401(k) Plan rank by assets among Form 5500 filers? ▼
Gsk 401(k) Plan ranks in the 100th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Gsk 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Lowes 401(k) Plan in NC ($8.1B, 295,676 participants).
Which 401(k) plans cover a similar participant headcount to Gsk 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Alterra Mountain Company U.S. Inc. 401(k) Retirement Plan in CO (11,850 participants, $310M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 231099050.

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.