2 hedge funds and family offices disclose a SEI position in their latest SEC 13F filing — combined $63.8M in market value.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Leopold Aschenbrenner | Situational Awareness LP | 1,105,551 | $62.5M | 0.46% | 2026-03-31 |
| 2 | Polen Capital | Polen Capital Management LLC | 28,597 | $1.3M | 0.01% | 2025-12-31 |
As of the latest 13F window, 2 tracked superinvestors hold SEI. The largest disclosed position is Leopold Aschenbrenner at $62.5M (0.5% of portfolio).
13F filings are due 45 days after each quarter end and capture long-equity positions held by U.S. institutional managers with $100M+ AUM. Use this page to see exactly who is buying SEI, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
2 hedge funds and family offices disclose a SEI position in their latest SEC 13F filing — combined $63.8M in market value.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Leopold Aschenbrenner | Situational Awareness LP | 1,105,551 | $62.5M | 0.46% | 2026-03-31 |
| 2 | Polen Capital | Polen Capital Management LLC | 28,597 | $1.3M | 0.01% | 2025-12-31 |
As of the latest 13F window, 2 tracked superinvestors hold SEI. The largest disclosed position is Leopold Aschenbrenner at $62.5M (0.5% of portfolio).
13F filings are due 45 days after each quarter end and capture long-equity positions held by U.S. institutional managers with $100M+ AUM. Use this page to see exactly who is buying SEI, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
