Notice of Proposed Sale · 144
SEI Investments Company
SEICNASDAQEQUITYCurrent
Notice of Proposed Sale
Structured filing — 144
primary_doc.xml
Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.
Proposed-sale notice
- Issuer
- SEI INVESTMENTS CO
- Issuer CIK
- 0000350894
- SEC file number
- 000-10200
- Phone
- 6106761000
- Person for whose account securities are to be sold
- Warner Mark Andrew
- Relationships to issuer
- Officer
- Street
- 1 FREEDOM VALLEY DRIVE
- City
- OAKS
- State / country code
- PA
- Postal code
- 19456-1100
Securities proposed for sale
| Security | Proposed units | Aggregate market value | Units outstanding | Approximate sale date | Exchange | Broker / market maker |
|---|---|---|---|---|---|---|
| Common | 15,000 | 1,535,187.00 | 120,019,182 | 07/28/2026 | NASDAQ | Charles Schwab & Co., Inc. |
Broker / market maker — proposed row 1, entry 1
- Name
- Charles Schwab & Co., Inc.
- Street
- 3000 Schwab Way
- City
- Westlake
- State / country code
- TX
- Postal code
- 76262
Acquisition of securities to be sold
| Security | Acquired | Nature of acquisition | Acquired from | Amount acquired | Gift transaction | Payment date | Nature of payment |
|---|---|---|---|---|---|---|---|
| Common | 07/28/2026 | Employee Stock Option Exercise | SEI INVESTMENTS CO | 15,000 | N | 07/28/2026 | Broker Payment for Cashless Exercise |
Sales reported in the preceding three months
| Seller | Security | Sale date | Amount sold | Gross proceeds |
|---|---|---|---|---|
| Mark Andrew Warner | SEI INVESTMENTS CO | 04/28/2026 | 4,000 | 364,640.00 |
Seller — prior-sale row 1, entry 1
- Name
- Mark Andrew Warner
- Street
- 1 FREEDOM VALLEY DRIVE
- City
- OAKS
- State / country code
- PA
- Postal code
- 19456-1100
Prior-sale reporting
- Nothing to report for the preceding three months
- N
Notice signature
- Notice date
- 07/28/2026
- Signed
- Mark Andrew Warner