Glaxosmithkline Llc 401(k) Plan: Login, Facts & Contact Information

Glaxosmithkline Llc 401(k) Plan Facts

Plan name
GSK 401(K) PLAN
Plan type
401(k) with employer contributions and profit sharing with a company-stock (ESOP) component
Plan sponsor
GLAXOSMITHKLINE LLC
Participants
22,305 (12,254 active employees)
Former employees with a balance
9,426
Plan assets
$8,791,991,025 at Dec 31, 2024
Average account balance
$404,825 across 21,718 accounts
Employer contributions
$252,295,672 in plan year 2024 (52% of all contributions)
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jul 1, 1966
✓ Employer contributions— Automatic enrollment✓ Default investment for undecided participants✓ Participants choose their own investments— Self-directed brokerage window✓ Profit sharing✓ Company stock (ESOP)

Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Jul 1, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $482.7 million went into the plan in contributions, $252.3 million of it from the employer (52%).
  • $871.2 million was paid out to participants.
  • Investment and other income added $1.11 billion.
  • Administrative expenses were $7.60 million, about $350 per account.

How the Glaxosmithkline Llc 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
201923,295$7.35 billion$110.7 million$692.3 million
202024,498$8.12 billion$125.3 million$511.3 million
202124,541$9.11 billion$250.8 million$761.3 million
202224,643$6.96 billion$235.6 million$659.8 million
202322,031$8.07 billion$238.9 million$603.2 million
202422,305$8.79 billion$252.3 million$871.2 million

Glaxosmithkline Llc 401(k) Contact Information

Phone
215-751-4908
Mailing address
FMC TOWER AT CIRA CENTRE SOUTH 2929 WALNUT STREET, SUITE 1700, PHILADELPHIA PA 19104
Plan sponsor
GLAXOSMITHKLINE LLC
Employer identification number (EIN)
23-1099050
Plan number
002

Questions about the Glaxosmithkline Llc 401(k)

Does Glaxosmithkline Llc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $252.3 million, 52% of all contributions.

Does the Glaxosmithkline Llc 401(k) have automatic enrollment?

No. The plan does not report automatic enrollment; employees enroll themselves.

How many people are in the Glaxosmithkline Llc 401(k) plan?

22,305 participants at the start of plan year 2024, 12,254 of them active employees, and 9,426 former employees who still had money in the plan.

What is the average 401(k) balance at Glaxosmithkline Llc?

About $404,825 per account: $8.79 billion in plan assets across 21,718 accounts with a balance at the end of plan year 2024.

Who manages the Glaxosmithkline Llc 401(k) accounts?

Alight is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Glaxosmithkline Llc. How do I access my 401(k)?

Your account stays with Alight after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.

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