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SEI INVESTMENTS MANAGEMENT CORP
CRD 105146File 801-24593
APPROVED
Retail clients
Custody
Disclosure events
Filing as of Sep 1, 2026
Feed vintage Oct 1, 2026
Regulatory AUM
$216.43B
Top 10% of cohort (national)
Discretionary AUM
$211.99B
Non-discretionary $4.44B
Clients
112,644
112,627 accounts
Employees
434
Top 10% of cohort in PA
Identity & registration
ADV Item 1- Organization form
- Corporation
- Firm type
- Registered
- SEC region
- PLRO
- Registration date
- Jun 27, 1985
- Principal office
- ONE FREEDOM VALLEY DRIVE, OAKS, PA, 19456
- Phone
- 610-676-1000
- Website
- HTTP://WWW.SEIC.COM
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $216.43B
- Discretionary AUM
- $211.99B
- Non-discretionary AUM
- $4.44B
- Discretionary accounts
- 112,625
- Non-discretionary accounts
- 2
- Total accounts
- 112,627
- AUM per client
- $1.9M
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Other | 35 | $488.3M |
| Investment companies | 1 | $100.73B |
| Charitable organizations | 465 | $3.87B |
| High net worth individuals | 726 | $5.00B |
| Pooled investment vehicles | 18 | $45.16B |
| Banking or thrift institutions | 93 | $935.5M |
| Pension and profit sharing plans | 343 | $9.56B |
| State or municipal government entities | 4 | $2.63B |
| Individuals (other than high net worth individuals) | 110,959 | $47.68B |
Compensation & activities
ADV Items 5E, 5GCompensation
- Fixed fees
- Performance-based fees
- A percentage of assets under your management
Advisory activities
- Other
- Publications
- Financial planning services
- Selection of other advisers
- Portfolio management for other
- Portfolio management for businesses
- Portfolio management for investment companies
- Portfolio management for pooled investment vehicles
- Portfolio management for individuals and/or small businesses
Custody
ADV Item 9- Firm Custody Cash
- Yes
- Firm Custody Assets
- Yes
- Firm Custody Clients
- Yes
- Firm Custody Securities
- Yes
- Related Person Custody Cash
- Yes
- Related Person Custody Assets
- No
- Related Person Custody Clients
- Yes
- Related Person Custody Securities
- Yes
Disclosure events
ADV Item 11- Q11
- Q11C2
- Q11C4
- Q11C5
- Q11H1C
Filed changes
| Date | Field | From | To | Change |
|---|---|---|---|---|
| Aug 17, 2026 | Clients | 112,646 | 112,644 | decreased by2 |
| Apr 1, 2026 | Employees | 447 | 434 | decreased by13 |
| Apr 1, 2026 | Clients | 99,622 | 112,646 | increased by13,024 |
| Apr 1, 2026 | AUM | $198,143,431,156 | $216,428,500,660 | increased by$18,285,069,504 |
| Apr 1, 2026 | Accounts | 99,603 | 112,627 | increased by13,024 |
| May 1, 2025 vs Oct 1, 2022 | Employees | 379 | 447 | increased by68 |
| May 1, 2025 vs Oct 1, 2022 | Clients | 70,148 | 99,622 | increased by29,474 |
| May 1, 2025 vs Oct 1, 2022 | AUM | $222,762,411,742 | $198,143,431,156 | decreased by$24,618,980,586 |
| May 1, 2025 vs Oct 1, 2022 | Accounts | 70,132 | 99,603 | increased by29,471 |
| Apr 1, 2022 | Employees | 417 | 379 | decreased by38 |
| Apr 1, 2022 | Clients | 54,759 | 70,148 | increased by15,389 |
| Apr 1, 2022 | AUM | $206,970,170,806 | $222,762,411,742 | increased by$15,792,240,936 |
| Apr 1, 2022 | Accounts | 54,743 | 70,132 | increased by15,389 |
| Apr 1, 2021 | Registration | — | APPROVED |
On Form 5500, an adviser usually appears as a plan service provider (Schedule C), not the plan sponsor.
See plans that list “SEI INVESTMENTS” as a service provider on 5500mcp →Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“SEI INVESTMENTS” may also match similarly-named firms). Confirm identity against each filing.
Every value above is reproduced from this firm's Form ADV filing. Fields the firm left blank are shown as “Not reported” rather than filled in from other sources.