SEIC
Sei Investments Company
4 super-investors hold SEIC worth a combined $18M. The largest position: Thomas Gayner at 0.1% of their portfolio. No cohort buying or selling was filed on the name this quarter. Cohort Conviction Score: 28 — ranked #459 of 724 scored stocks.
Why super-investors own SEIC
Interest in SEIC within this cohort is narrow and static: four managers hold a combined $18M, but the highest concentration in any single portfolio is just 0.1%, belonging to Thomas Gayner whose $14M stake accounts for the bulk of cohort exposure. Joel Greenblatt holds roughly $3M, while Kahn Brothers and Mairs & Power carry token positions under $520K. No one added, trimmed, started, or exited in 2026Q1, and the cohort owner count has held at a consistent level for at least seven prior quarters. The uniformly low concentration figures suggest these are incidental rather than high-conviction allocations, and there is no evidence of rising or fading interest — the position is simply dormant.
AI-synthesized from 13F filings. Not investment advice.
Cohort owners over time
2024Q3 → 2026Q1How many of the cohort members held this stock each quarter.
Owners (4) · click any column to sort
| #↑ | Manager | % Port. | History | Value | Shares |
|---|---|---|---|---|---|
| 1 | Thomas Gayner | 0.1% | 40q | $14M | 173,200 |
| 2 | Joel Greenblatt | <0.1% | 34q | $3M | 41,969 |
| 3 | Kahn Brothers Group | 0.1% | 7q | $518K | 6,596 |
| 4 | Mairs & Power Funds | <0.1% | 19q | $259K | 3,300 |
Owners of SEIC also hold
Long US equity 13F-HR filings only. CUSIP 784117103. Not investment advice.