SEI INVESTMENTS CO 401(k): Principal, match 4% max
SEI Capital Accumulation Plan · SEIC · CIK 350894
Principal is the recordkeeper named on the Form 5500 filed for this plan, the company that keeps the account records. Where to log in, and what the filing says.
Maximum employer match, as a share of pay
4%
SEI INVESTMENTS CO matches 100% (dollar-for-dollar) of the first 3% of pay, then 50% of the next 2% of pay, for a maximum employer match of 4% of pay.
From the Form 11-K filed June 23, 2026 ↗, covering the plan year ended December 31, 2025. Page data last updated July 28, 2026, when the Form 5500 bulk data was last refreshed. Why filings lag
On this page: what the employer actually paid in · the formula, word for word · when the money becomes yours · who can join · who holds your account · what the plan reports to the DOL · how it compares · what to do next
What SEI INVESTMENTS puts in, and what the plan costs
What SEI INVESTMENTS put into the plan, per active participant
$4,415
SEI INVESTMENTS CO put $4,415 into this plan for each of its 4,327 active participants in plan year 2024. This is the whole employer side of the plan: matching money, profit sharing, non-elective and safe-harbor contributions, and reallocated forfeitures. The Form 5500 does not separate them, so this is what the employer put in and not the match.
SEI INVESTMENTS put in less per active participant than 54% of plans with 5,000+ participants in software and IT services. The middle plan in that group of 62 reported $4,620. Software and IT services comes from business code 541519, which SEI INVESTMENTS entered on its own Form 5500. Sponsors pick that code themselves, so a code that does not describe what the employer does ranks the plan against the wrong companies.
What this figure cannot separate: how much SEI INVESTMENTS pays, and how much it puts in
This is dollars, not a rate. A Form 5500 carries no payroll, so the figure reflects both how much the employer puts in and how much the employer pays: two plans running the same formula report different amounts when one pays better. Crossing the peer group with industry holds most of that difference still, and none of it disappears.
This is one plan year, not an average. A true-up, a plan merger or a one-off contribution moves a single year on its own.
Source: DOL Form 5500 for the plan year ended December 31, 2024, EIN 231707341, plan 002 · DOL EFAST2 ↗
The $4,415 above is the Form 5500 figure for plan year 2024, and it counts every employer dollar on one line. SEI INVESTMENTS CO also files a Form 11-K, which states the match formula for plan year 2025: the card below reads $1,980 a year at a $49,500 salary, and the same filing states employer contributions made outside the match. That second figure is what the formula pays one worker on that salary, and not an amount either filing reports. The two figures cover different plan years and measure different things, so neither one is the other one corrected.
What SEI INVESTMENTS puts in
$1,980
a year, at a $49,500 salary.
The match paragraph, word for word
“As a result, the Company made safe harbor matching contributions in 2025 and 2024 equal to 100% of the participant's contributions up to 3% of the participant's annual eligible compensation plus 50% of the participant's contributions between 3% and 5% of the participant's annual eligible compensation.”
What you contribute to collect all of it
Contribute at least 5% of your pay to collect the full match.
That is $2,475 a year at a $49,500 salary, and it scales with your own.
Vesting score
100 out of 100
How fast the employer’s money becomes yours. Higher than 48% of the 369 schedules we have scored.
It measures vesting speed and nothing else. It says nothing about the size of the match, what the plan charges, or the funds inside it.
Share of the employer's money that is the worker's at hire and at each of the first 6 anniversaries: 100%, 100%, 100%, 100%, 100%, 100%, 100%. The score is the average of those 7 readings.
Vesting, word for word
“Participants are immediately vested in their contributions to the Plan and all employer contributions credited to their accounts, plus any earnings (losses) thereon.”
The wait before the match starts and the year-end true-up appear above when the filing states them. Neither is part of the score, and a filing that is silent on one of them is not a plan without it.
What the plan costs, against plans of its size
7th percentile
$9.82 per participant in plan-paid administrative cost, cheaper than 93% of plans with 5,000+ participants.
What is SEI INVESTMENTS' 401(k) match formula?
SEI INVESTMENTS' 401(k) employer match tops out at 4% of pay. A tiered formula pays its best rate on the first slice of pay and less on the next, which is how the rate steps down.
| Match formula | 100% (dollar-for-dollar) of the first 3% of pay |
|---|---|
| then | 50% of the next 2% of pay |
| Maximum employer match | 4% of compensation |
| Paid in company stock | No, paid in cash or per your investment elections |
| Conditions | The Company made safe harbor matching contributions in 2025 and 2024 equal to 100% of the participant's contributions up to 3% of the participant's annual eligible compensation plus 50% of the participant's contributions between 3% and 5% of the participant's annual eligible compensation. The Company retains the right to reduce or suspend the safe harbor contribution under the Plan. |
| Other employer contribution | The Company may also make a profit-sharing contribution that will be allocated among eligible participants in the same proportion that each participant’s compensation bears to the aggregate compensation of all participants. No profit-sharing contributions were made in 2025 and 2024. |
At a $75,000 salary, contributing 5% ($3,750) earns the full employer match of $3,000 for the year.
What the filing says, word for word
“As a result, the Company made safe harbor matching contributions in 2025 and 2024 equal to 100% of the participant's contributions up to 3% of the participant's annual eligible compensation plus 50% of the participant's contributions between 3% and 5% of the participant's annual eligible compensation.”
Source: Form 11-K filed June 23, 2026, SEC EDGAR, corroborated by the filing's inline-XBRL facts · SEC ↗
What is SEI INVESTMENTS' 401(k) vesting schedule?
SEI INVESTMENTS vests the employer match immediately: 100% is yours as soon as it is paid in. Nothing is forfeited when you leave, which is not true of the two schedules that vest over time.
| Employer match vesting | Immediate: employer match is 100% vested when contributed |
|---|---|
| Your own contributions | Immediate: always 100% yours |
Vesting, word for word
“Participants are immediately vested in their contributions to the Plan and all employer contributions credited to their accounts, plus any earnings (losses) thereon.”
Source: Form 11-K filed June 23, 2026, SEC EDGAR · SEC ↗
Who can join SEI INVESTMENTS' 401(k), and is enrollment automatic?
SEI INVESTMENTS enrolls new hires automatically at 3% of pay, rising 1% a year to 10% of pay.
| Plan entry | An employee of the Company and its applicable participating subsidiaries will become eligible to join the Plan after the completion of his or her first hour of employment. |
|---|---|
| Excluded groups | Union employees, unless the collective bargaining agreement provides for participation, non-resident aliens with no U.S. source income from the Company, leased employees, and employees classified as interns. Individuals designated by their employer as independent contractors are also excluded from participation in the Plan. |
| Automatic enrollment | Yes: default deferral 3% of pay; auto-escalation +1%/yr to 10% |
Eligibility, word for word
“An employee of the Company and its applicable participating subsidiaries will become eligible to join the Plan after the completion of his or her first hour of employment.”
Automatic enrollment, word for word
“Eligible employees with a hire date on or after April 2, 2007 are automatically enrolled in the Plan at a 3% pre-tax deferral rate after 90 days of employment.”
Source: Form 11-K filed June 23, 2026, SEC EDGAR · SEC ↗
Who holds your account
Schedule C of the Form 5500 filed for plan year 2024 reports Principal, filed as “PRINCIPAL LIFE INSURANCE COMPANY”. That is the company paid to keep the account records: what is in an account, what went into it, and usually the site a participant signs in to. The trustee that holds the plan’s assets can be a different company, and this filing does not name it.
5,239 plans on file name Principal as their recordkeeper. Of those, the 5,230 with a computable fee have a median plan-paid cost of $170.05 per participant.
Participants log in at Principal ↗. 401(k) Monitor is not affiliated with Principal or with any other recordkeeper, and takes nothing for this link. It is here because that is where the account is.
| Recordkeeper | Principal |
|---|---|
| Recordkeeper EIN | 420127290 |
What does the SEI INVESTMENTS plan report on Form 5500?
The SEI INVESTMENTS plan reported $881.8M in assets and 5,673 participants for plan year 2024.
| Total plan assets | $881,802,713 |
|---|---|
| Participants | 5,673 |
| Plan-paid admin cost per participant | $9.82 |
How that cost compares
This plan pays $9.82 per participant. The median across plans in software and IT services is $125.69, from the 2,819 of 2,956 whose Form 5500 yields a per-participant cost.
Read from the Form 5500 filing of Sei Capital Accumulation Plan, which has no page of its own here.
How does SEI INVESTMENTS' 401(k) match compare?
SEI INVESTMENTS CO's maximum 401(k) match of 4% of pay compares with a median of 4% across the 269 companies in our data with a computable formula.
Employers worth reading next
Of the six employers below, three file in software and IT services, two report the same recordkeeper and one vests on the same schedule.
Maximum match 4% of pay. Also in software and IT services.
No employer match in the filing. Also in software and IT services.
Maximum match 4% of pay. Also in software and IT services.
Maximum match 4% of pay. Same recordkeeper, Principal.
Maximum match 4% of pay. Same recordkeeper, Principal.
Maximum match 4% of pay. Vests immediately too, like SEI INVESTMENTS.
What can you do next?
- Read the Form 11-K on SEC EDGAR ↗
Form 11-K filed June 23, 2026, SEC EDGAR. Every match fact on this page comes from it.
- Changed jobs? Find an old 401(k) ↗
The Department of Labor's Retirement Savings Lost & Found, a free government database.
- This year's IRS contribution limits ↗
The official deferral and catch-up limits every formula operates under.
Questions this filing answers
What is SEI INVESTMENTS CO's 401(k) match?
Sei Investments Co matches 100% (dollar-for-dollar) of the first 3% of pay, then 50% of the next 2% of pay, for a maximum employer match of 4% of compensation (plan year ended December 31, 2025).
When does the SEI INVESTMENTS CO 401(k) match vest?
Immediate: employer match is 100% vested when contributed.
Does SEI INVESTMENTS CO's 401(k) plan have automatic enrollment?
Yes: default deferral 3% of pay; auto-escalation +1%/yr to 10%.
Who is the recordkeeper for SEI INVESTMENTS CO's 401(k)?
Principal is named as the recordkeeper on the Form 5500 filed for Sei Capital Accumulation Plan for plan year 2024. That is the company paid to keep the account records: what is in an account, what went into it, and usually the site a participant signs in to.
Source
The match formula, the vesting schedule and the enrollment rules on this page were read from one document: the Form 11-K annual report that SEI INVESTMENTS CO filed with the US Securities and Exchange Commission for the plan year ended December 31, 2025. Each of those fields carries the filing sentence it was read from, expandable where the field appears. Nothing on this page was supplied by the employer to this site.
The plan assets, the participant counts, the plan-paid fees and the recordkeeper come from a different document, the plan’s DOL Form 5500 annual return, and the section that reports them links it. Comparisons with other employers are computed across the filings named in the section they appear in.
Read the filing on SEC EDGAR ↗
| Document | Form 11-K annual report |
|---|---|
| Filed with | US Securities and Exchange Commission (EDGAR) |
| Filed by | SEI INVESTMENTS CO |
| SEC CIK | 350894 |
| Accession number | 0000350894-26-000039 |
| Plan | SEI Capital Accumulation Plan |
| Period of report | December 31, 2025 |
| Filed | June 23, 2026 |
401(k) Monitor is not affiliated with SEI INVESTMENTS CO, with the Securities and Exchange Commission or with this plan’s recordkeeper, and publishes this page without their involvement. It republishes a public filing and says where it came from.
Cite this page
401(k) Monitor, “SEI INVESTMENTS CO 401(k) plan facts”, from SEC Form 11-K accession 0000350894-26-000039, plan year ended December 31, 2025.
