# Sei Investments (SEIC): value investors who own it

2 value investors held Sei Investments in their Q3 2026 13F, led by Markel Group, Kahn Brothers.

## 13F holders

| Manager | Portfolio | Value | Change | Quarters held |
| --- | --- | --- | --- | --- |
| Markel Group | 0.1% | $15.2m | Unchanged | 53 |
| Kahn Brothers | 0.1% | $579k | Unchanged | 8 |
| Mairs & Power | 0.0% | $0k | Sold out | 10 |

## Directors buying and selling (Form 4, last 12 months)

| Date | Who | Role | Bought or sold | Shares | Value |
| --- | --- | --- | --- | --- | --- |
| 2026-09-30 | WEST ALFRED P JR |  | Sold | 5483 | $566k |
| 2026-09-29 | WEST ALFRED P JR |  | Sold | 28394 | $2.9m |
| 2026-09-22 | LANE MICHAEL | Executive Vice President | Sold | 2400 | $247k |
| 2026-09-03 | Hicke Ryan | Chief Executive Officer | Sold | 37500 | $4.2m |
| 2026-09-01 | ROMEO CARMEN | Director | Sold | 5000 | $549k |
| 2026-08-28 | Peterson Michael | Executive Vice President | Sold | 37500 | $4.2m |
| 2026-08-05 | McCabe Philip | See Remarks | Sold | 5043 | $532k |
| 2026-08-04 | McCabe Philip | See Remarks | Sold | 24957 | $2.6m |
| 2026-08-03 | MCCARTHY KATHRYN | Director | Sold | 10000 | $1.0m |
| 2026-07-28 | Peterson Michael | Executive Vice President | Sold | 25000 | $2.6m |
| 2026-07-28 | GUARINO CARL | Director | Sold | 10000 | $1.0m |
| 2026-07-28 | Warner Mark Andrew | See Remarks* | Sold | 7400 | $762k |
| 2026-07-28 | Warner Mark Andrew | See Remarks* | Sold | 5300 | $541k |
| 2026-07-28 | Warner Mark Andrew | See Remarks* | Sold | 2300 | $233k |
| 2026-07-24 | Sharma Sanjay | See Remarks* | Sold | 20000 | $2.0m |

Source: SEC filings, via moatshark (https://www.moatshark.com/s/seic). Values traded and returns are estimates. Not investment advice. Built 2026-10-21.