Employer · plans filed under one EIN
Glaxosmithkline LLC
Philadelphia, PA · Manufacturing
Form 5500 information is as filed by the plan administrator with the Department of Labor and may be amended. Figures reflect the plan year shown, not current balances.
Glaxosmithkline LLC, based in Philadelphia, Pennsylvania, sponsors 2 retirement plans with 100 or more participants: 1 defined contribution and 1 defined benefit. Together they reported 57,053 participant records and $12.9B in net assets.
The largest is Glaxosmithkline Cash Balance Pension Plan, a cash balance pension plan with 35,701 participants. A person can be counted in more than one plan, so the participant total is a count of records rather than of people.
Employer contributions across the plans were $388M and participant contributions $210M in the latest plan years; benefits paid were $1.14B. Schedule C compensation reported to service provider organisations totalled $14.6M.
Combined net assets moved from $7.64B in 2009 to $9.97B in 2025 (up 30%). Plan mergers and spin-offs show up here as steps in the series.
Plans
| Plan | Kind | Plan year | Participants | Net assets | Per participant | Employer / active | Sch. C compensation |
|---|---|---|---|---|---|---|---|
| Glaxosmithkline Cash Balance Pension Plan | cash balance pension plan | 2024 | 35,701 | $2.90B | $81,255 | $18,425 | $6.5M |
| GSK 401(k) Plan | ESOP with a 401(k) feature | 2025 | 21,352 | $9.97B | $467,069 | $21,394 | $8.2M |
| US median, plan year 2024: DC plans $53,102 per participant, $2,175 employer contribution per active participant; DB plans $86,221 and $10,244. | |||||||
Trend by plan year
| Plan year | Plans | Participant records | Net assets | Employer contributions | Participant contributions |
|---|---|---|---|---|---|
| 2025 | 1 | 21,352 | $9.97B | $257M | $210M |
| 2024 | 2 | 57,463 | $11.7B | $383M | $204M |
| 2023 | 2 | 60,062 | $11.0B | $434M | $196M |
| 2022 | 2 | 61,662 | $9.80B | $356M | $195M |
| 2021 | 2 | 67,586 | $12.5B | $277M | $208M |
| 2020 | 2 | 70,005 | $11.7B | $141M | $206M |
| 2019 | 2 | 69,454 | $11.0B | $117M | $198M |
| 2018 | 2 | 68,639 | $9.85B | $127M | $191M |
| 2017 | 2 | 70,023 | $10.9B | $274M | $184M |
| 2016 | 2 | 71,984 | $9.80B | $210M | $180M |
| 2015 | 2 | 71,805 | $9.43B | $118M | $188M |
| 2014 | 2 | 75,692 | $10.4B | $293M | $201M |
| 2013 | 2 | 79,294 | $10.3B | $123M | $201M |
| 2012 | 2 | 82,678 | $9.10B | $169M | $187M |
| 2011 | 2 | 82,761 | $8.30B | $321M | $181M |
| 2010 | 2 | 86,446 | $8.12B | $365M | $193M |
| 2009 | 2 | 91,397 | $7.64B | $127M | $197M |
History of the plans listed above, in the years each filed the full Form 5500 with 100 or more participants. Plans that have since terminated are not included.
Service providers
| Organisation | Services reported | Plans | Compensation reported |
|---|---|---|---|
| Alight Financial Advisors LLC | Contract Administrator | 1 | $3,684,591 |
| Dodge & Cox | Investment management | 1 | $2,351,784 |
| Alight Solutions | Contract Administrator; Recordkeeping and information management | 1 | $2,075,747 |
| Legal & General Invstmt MGMT Amer | Investment management | 1 | $1,594,913 |
| BlackRock Advisors LLC | Trustee (bank, trust company, or similar financial institution); Trustee (discretionary); Investment management | 1 | $1,137,334 |
| State Street Global Advisors | Custodial (other than securities); Custodial (securities); Investment management | 2 | $771,757 |
| Jennison Associates LLC | Investment management | 1 | $624,292 |
| Income Research & Management | Investment management | 1 | $509,312 |
| The Bank of New York Mellon | Custodial (securities); Trustee (directed) | 1 | $482,723 |
| Walter Scott & Partners Ltd. | Investment management | 1 | $428,381 |
| Gsam Stable Value, LLC | Investment management | 1 | $329,609 |
| Towers Watson Delaware Inc. | Actuarial | 1 | $311,517 |
| Rocaton Investment Advisors | Investment management | 1 | $138,938 |
| Deloitte & Touche LLP | Accounting (including auditing) | 1 | $87,765 |
| Marathon Asset Management Limited | Investment management | 1 | $41,537 |
Organisations paid $5,000 or more by any of these plans, from Schedule C. Individuals are not shown.
Questions and answers
How many retirement plans does Glaxosmithkline LLC have?
2 plans with 100 or more participants filed Form 5500 under its employer identification number for the latest plan years: Glaxosmithkline Cash Balance Pension Plan and GSK 401(k) Plan. Smaller plans and plans filed under a subsidiary's number are not grouped here.
How much does Glaxosmithkline LLC contribute to its plans?
$387,554,269 in employer contributions across these plans in their latest plan years, about $20,289 per active participant record. Form 5500 reports totals and not the match or accrual formula.
Who provides services to these plans?
Schedule C filings name Alight Financial Advisors LLC, Dodge & Cox, Alight Solutions and Legal & General Invstmt MGMT Amer and others. Only organisations paid $5,000 or more by a plan are listed on Schedule C.
Where does this come from?
Form 5500 annual reports filed with the Department of Labor's EFAST2 system, from the EBSA research files, with filings received through 24 Aug 2026. Figures are as filed and may be amended.
Provenance
Source: U.S. Department of Labor, Employee Benefits Security Administration, Form 5500 research files, public domain, with filings received through 24 Aug 2026. Plans are grouped by the sponsor's employer identification number exactly as filed; a company that files under several EINs appears as several employers. See the methodology and corrections.