Repligen Corporation 401(k) Plan: Login, Facts & Contact Information

Repligen Corporation 401(k) Plan Facts

Plan name
REPLIGEN 401(K) SAVINGS PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
REPLIGEN CORPORATION
Participants
1,559 (1,126 active employees)
Former employees with a balance
489
Plan assets
$86,590,461 at Dec 31, 2024
Average account balance
$62,792 across 1,379 accounts
Employer contributions
$2,890,533 in plan year 2024 (19% of all contributions)
Recordkeeper
Fidelity Investments Institutional
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jan 1, 1985
✓ 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 Oct 14, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $15.0 million went into the plan in contributions, $2.89 million of it from the employer (19%).
  • $10.7 million was paid out to participants.
  • Investment and other income added $10.2 million.
  • Administrative expenses were $17,345, about $13 per account.

How the Repligen Corporation 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
2019460$26.4 million$1.02 million$1.32 million
2020684$37.9 million$1.31 million$2.26 million
2021926$54.0 million$1.90 million$4.06 million
20221,419$54.4 million$2.72 million$5.45 million
20231,704$72.0 million$2.96 million$7.65 million
20241,559$86.6 million$2.89 million$10.7 million

Repligen Corporation 401(k) Contact Information

Phone
781-250-0111
Mailing address
41 SEYON STREET, BLG 1, SUITE 100, WALTHAM MA 02453
Plan sponsor
REPLIGEN CORPORATION
Employer identification number (EIN)
04-2729386
Plan number
002

Questions about the Repligen Corporation 401(k)

Does Repligen Corporation contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $2.89 million, 19% of all contributions.

Does the Repligen Corporation 401(k) have automatic enrollment?

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

How many people are in the Repligen Corporation 401(k) plan?

1,559 participants at the start of plan year 2024, 1,126 of them active employees, and 489 former employees who still had money in the plan.

What is the average 401(k) balance at Repligen Corporation?

About $62,792 per account: $86.6 million in plan assets across 1,379 accounts with a balance at the end of plan year 2024.

Who manages the Repligen Corporation 401(k) accounts?

Fidelity NetBenefits (listed on the filing as FIDELITY INVESTMENTS INSTITUTIONAL) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Repligen Corporation. How do I access my 401(k)?

Your account stays with Fidelity NetBenefits 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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