Regenxbio Inc. 401(k) Plan: Login, Facts & Contact Information

Regenxbio Inc. 401(k) Plan Facts

Plan name
REGENXBIO INC 401(K) PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
REGENXBIO INC.
Participants
504 (347 active employees)
Former employees with a balance
162
Plan assets
$67,723,541 at Dec 31, 2024
Average account balance
$138,778 across 488 accounts
Employer contributions
$3,071,868 in plan year 2024 (28% of all contributions)
Recordkeeper
The Vanguard Group, Inc.
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jan 1, 2015
✓ 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 Sep 8, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $11.2 million went into the plan in contributions, $3.07 million of it from the employer (28%).
  • $5.73 million was paid out to participants.
  • Investment and other income added $8.76 million.
  • Administrative expenses were $7,576, about $16 per account.

How the Regenxbio Inc. 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
2019208$16.5 million$1.82 million$1.70 million
2020292$25.6 million$2.11 million$682,516
2021352$37.1 million$2.67 million$1.52 million
2022429$37.6 million$3.04 million$1.69 million
2023487$53.5 million$3.31 million$2.39 million
2024504$67.7 million$3.07 million$5.73 million

Regenxbio Inc. 401(k) Contact Information

Phone
240-641-1574
Mailing address
9804 MEDICAL CENTER DRIVE, ROCKVILLE MD 20850
Plan sponsor
REGENXBIO INC.
Employer identification number (EIN)
47-1851754
Plan number
001

Questions about the Regenxbio Inc. 401(k)

Does Regenxbio Inc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $3.07 million, 28% of all contributions.

Does the Regenxbio Inc 401(k) have automatic enrollment?

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

How many people are in the Regenxbio Inc 401(k) plan?

504 participants at the start of plan year 2024, 347 of them active employees, and 162 former employees who still had money in the plan.

What is the average 401(k) balance at Regenxbio Inc?

About $138,778 per account: $67.7 million in plan assets across 488 accounts with a balance at the end of plan year 2024.

Who manages the Regenxbio Inc 401(k) accounts?

Vanguard (listed on the filing as THE VANGUARD GROUP, INC.) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Regenxbio Inc. How do I access my 401(k)?

Your account stays with Vanguard 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.

Related Companies
Headquarter: 2302 POST OFFICE ST STE 402, GALVESTON, TX, 77550
Headquarter: 500 FRANK W. BURR BOULEVARD MAILBOX 29 - 5TH FLOOR, TEANECK, NJ, 07666
Headquarter: 8283 GREENSBORO DRIVE, MCLEAN, VA, 221023830
Headquarter: 30 IVAN ALLEN JR BLVD NW BIN SC1002, ATLANTA, GA, 30308
Headquarter: 214 N. TRYON STREET FLOOR 45, CHARLOTTE, NC, 28202