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Mark Warner

Treasurer/Controller at SEI Investments Management

Officer record from the firm’s Form ADVForm ADV filed 1 September 2026

Mark Warner is Treasurer/Controller of SEI Investments Management Corp, a Oaks investment adviser.

Role at SEI Investments Management

Title on Schedule A
Treasurer/Controller
Control
Mark Warner is a control person of SEI Investments Management.
Ownership
An individual ownership band is not available in the source record.
Tenure
Mark Warner has held the filed role since March 2023.

The firm

SEI Investments Management Corp
Oaks, PA

Form ADV filed 1 September 2026

$216B AUM112,646 clients226 advisers4 offices

Career on record

The IAPD individual lookup on 18 October 2026 returned no individual record. This profile uses the firm’s Form ADV officer listing.

Registrations and exams

Individual registration and examination information for Mark Warner is unavailable. An officer title or CRD number does not by itself establish current investment adviser representative registration, and no registration or examination counts are inferred.

Officer record

Full name
Mark Warner
CRD
7720378
Firm
SEI Investments Management Corp
Record basis
Form ADV officer listing

This directory does not report disciplinary history, for any firm or individual, in either direction. The SEC publishes the complete record, including any disciplinary events, and it is the authoritative place to check one. Check this record on adviserinfo.sec.gov

Common questions

Where does Mark Warner work?

Mark Warner has been Treasurer/Controller of SEI Investments Management Corp since March 2023, and is a control person of the firm.

Source: Form ADV, Schedule A, filed 1 September 2026

Leadership at SEI Investments Management

Sources

  1. IAPD individual lookup, CRD 7720378. This profile uses the Form ADV officer listing; the individual lookup did not provide a current investment-adviser record.
  2. Form ADV Part 1A, Schedules A and B of SEI Investments Management Corp, filed 1 September 2026. Title, control and ownership bands.

Retrieved 18 October 2026. The SEC record may have been amended since.

Report a correction

This profile is compiled from public regulatory records and the firm's own published materials, and is provided for informational purposes only. Niva Wealth is not affiliated with Mark Warner or SEI Investments Management Corp and makes no representation about the quality of their services. This directory does not report disciplinary history, in either direction.