Thorlabs, Inc. 401(k) Plan: Login, Facts & Contact Information
Thorlabs, Inc. 401(k) Login
408 former Thorlabs, Inc. employees still have money in this plan.
Retirement plan providers can change. This information is from the plan's 2024 filing.
Thorlabs, Inc. 401(k) Plan Facts
Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Aug 20, 2025. Public filing with the U.S. Department of Labor.
Money in and out in plan year 2024
- $15.2 million went into the plan in contributions, $4.02 million of it from the employer (27%).
- $7.96 million was paid out to participants.
- Investment and other income added $19.6 million.
- Administrative expenses were $196,148, about $95 per account.
How the Thorlabs, Inc. 401(k) changed, 2019–2024
| Plan year | Participants | Plan assets | Employer contributions | Benefits paid |
|---|---|---|---|---|
| 2019 | 1,280 | $72.2 million | $2.45 million | $2.18 million |
| 2020 | 1,444 | $86.9 million | $2.14 million | $5.23 million |
| 2021 | 1,426 | $108.5 million | $2.76 million | $3.46 million |
| 2022 | 1,592 | $95.5 million | $3.04 million | $4.91 million |
| 2023 | 1,779 | $123.3 million | $3.59 million | $4.68 million |
| 2024 | 2,108 | $149.9 million | $4.02 million | $7.96 million |
Thorlabs, Inc. 401(k) Contact Information
Questions about the Thorlabs, Inc. 401(k)
Does Thorlabs, Inc contribute to the 401(k)?
Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $4.02 million, 27% of all contributions.
Does the Thorlabs, Inc 401(k) have automatic enrollment?
Yes. The plan reports automatic enrollment of eligible employees.
How many people are in the Thorlabs, Inc 401(k) plan?
2,108 participants at the start of plan year 2024, 1,734 of them active employees, and 408 former employees who still had money in the plan.
What is the average 401(k) balance at Thorlabs, Inc?
About $72,538 per account: $149.9 million in plan assets across 2,066 accounts with a balance at the end of plan year 2024.
Who manages the Thorlabs, Inc 401(k) accounts?
Ascensus (listed on the filing as ASCENSUS LLC) is the plan's recordkeeper, which is where participants log in to see their balance.
I no longer work at Thorlabs, Inc. How do I access my 401(k)?
Your account stays with Ascensus 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.