Stack Exchange 401(k) match, vesting and fees
What Stack Exchange's 401(k) plan says about matching contributions
Plan features
Match, vesting and enrollment details have not been published from this plan's audit report yet. The figures below come from the structured filing.
| Recordkeeper | Principal Life Insurance Company | Schedule C ↗ |
| Independent auditor | Cbiz Cpas P.C. (unmodified opinion, limited scope) | Schedule H ↗ |
| Plan type and status | 401(k) · Active | Form 5500 ↗ |
| Late participant contributions | Reported on the filing | Schedule H ↗ |
How the plan compares
Plan year 2024 medians for 655 defined-contribution plans in finance and insurance with 500 to 999 participants.
| Stack Exchange: employer contribution per participant | $3,349 | |
| Peer median | $2,935 |
| Stack Exchange: average balance | $79,362 | |
| Peer median | $92,770 |
| Stack Exchange: admin expenses ÷ assets | 0.04% | |
| Peer median | 0.15% |
Admin expenses are the plan's reported administrative expenses divided by its assets; they do not include fund expense ratios.
Plan history
Plan assets went from $41.1M at the end of plan year 2023 to $47.6M at the end of plan year 2024.
| Plan year | Participants | Assets | Employer contributions | Per participant | Admin expense ratio | Match formula | Filing |
|---|---|---|---|---|---|---|---|
| 2024 | 604 | $47.6M | $2M | $3,349 | 0.04% | Not published | Form 5500 ↗ |
| 2023 | 616 | $41.1M | $3M | $5,304 | 0.17% | Not published | Form 5500 ↗ |
Other Stack Exchange plans (1)
Each plan files its own Form 5500. Figures are from each plan's latest filing.
Stack Exchange, Inc. Retirement Trust
Plan features
Match, vesting and enrollment details have not been published from this plan's audit report yet. The figures below come from the structured filing.
| Recordkeeper | The Vanguard Group, Inc. | Schedule C ↗ |
| Independent auditor | Marcum LLP (unmodified opinion, limited scope) | Schedule H ↗ |
| Plan type and status | 401(k) · Terminated (final filing) | Form 5500 ↗ |
Common questions
Does Stack Exchange match 401(k) contributions?
The match terms for the Prosus 401(k) Plan have not been published from its filing yet. The plan year 2024 filing reports $2M in employer contributions, about $3,349 per participant. That total includes any match and profit-sharing; it is not a match formula.
When is the Stack Exchange 401(k) match vested?
The vesting schedule for the Prosus 401(k) Plan is not in the data published so far. Your Summary Plan Description states it.
Who manages the Stack Exchange 401(k)?
The recordkeeper listed on Schedule C of the plan year 2024 filing is Principal Life Insurance Company. The plan administrator is Stack Exchange, Inc..
I left Stack Exchange. How do I find my old 401(k)?
Your account stays in the plan until you move it. Contact the plan administrator (Stack Exchange, Inc., (415) 529-2528) or the recordkeeper, Principal Life Insurance Company. The Stack Exchange old 401(k) page lists the contacts from every plan filing. Find an old Stack Exchange 401(k)
Data from the public Form 5500 annual reports Stack Exchange filed with the U.S. Department of Labor (plan years 2021 and 2022 and 2023 and 2024) and, where noted, the attached independent auditor's report. Plan terms may have changed since the filing; check your current Summary Plan Description. PlanFacts is not affiliated with Stack Exchange. Not financial advice. Report a correction · Methodology