Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
196 institutional managers reported holding SEB for the quarter ended Mar 31, 2026. Together they hold about 25% of shares outstanding; the top 10 hold 17%. 33 opened new positions; 26 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Dimensional Fund Advisors | 47.1k | 4.92% | $266.2M | added +4.5% | ≤2013 |
| Vanguard Group | 32.8k | 3.43% | $185.7M | added +20% | ≤2013 |
| BlackRock | 24.0k | 2.51% | $136.0M | added +3.5% | ≤2013 |
| Arrowstreet Capital | 12.3k | 1.29% | $69.7M | added +238% | 2023 Q1 |
| AQR Capital | 7.8k | 0.81% | $44.1M | added +62.5% | 2021 Q1 |
| Private Management Group INC | 7.5k | 0.79% | $42.5M | trimmed -22.7% | 2014 Q1 |
| American Century Companies INC | 7.5k | 0.78% | $42.1M | added +15.2% | 2022 Q1 |
| Wallace Capital Management INC. | 7.4k | 0.77% | $41.8M | trimmed -4.1% | 2025 Q1 |
| Charles Schwab Investment Management | 6.0k | 0.63% | $34.1M | trimmed -2.5% | ≤2013 |
| Kahn Brothers Group INC (focused) | 5.9k | 0.61% | $33.2M | trimmed -19.4% | ≤2013 |
| Geode Capital | 4.9k | 0.51% | $27.8M | added +13.7% | ≤2013 |
| Morgan Stanley | 4.6k | 0.48% | $26.2M | added +20.9% | ≤2013 |
| State Street | 4.6k | 0.48% | $25.9M | unchanged | ≤2013 |
| Two Sigma | 4.4k | 0.46% | $24.9M | added +138.4% | 2023 Q1 |
| CWA Asset Management Group, LLC | 3.5k | 0.37% | $19.9M | opened | 2026 Q1 |
| Renaissance Technologies | 3.3k | 0.34% | $18.4M | trimmed -36.3% | ≤2013 |
| Twin Lions Management LLC (focused) | 3.2k | 0.33% | $17.9M | trimmed -28.1% | 2025 Q3 |
| Qube Research & Technologies LTD | 2.6k | 0.27% | $14.4M | added +18.8% | 2023 Q2 |
| Barclays PLC | 2.2k | 0.23% | $12.5M | trimmed -14.5% | 2020 Q2 |
| Invesco | 2.0k | 0.21% | $11.3M | added +29.6% | ≤2013 |
| BNY Mellon | 1.9k | 0.20% | $10.7M | added +4.6% | ≤2013 |
| Citadel Advisors | 1.8k | 0.19% | $10.4M | added +67.1% | 2021 Q4 |
| Susquehanna Portfolio Strategies, LLC | 1.7k | 0.18% | $9.6M | added +118.6% | 2025 Q2 |
| UBS | 1.6k | 0.17% | $9.1M | added +51.5% | ≤2013 |
| Corient Private Wealth LLC | 1.5k | 0.16% | $8.7M | added +107.8% | 2025 Q2 |
| Quadrature Capital LTD | 1.5k | 0.15% | $8.4M | opened | 2024 Q4 |
| Aquatic Capital Management LLC | 1.5k | 0.15% | $8.2M | added +307.3% | 2025 Q4 |
| Cerity Partners LLC | 1.4k | 0.15% | $7.9M | trimmed -7.5% | 2024 Q1 |
| Northern Trust | 1.4k | 0.14% | $7.7M | added +5.1% | ≤2013 |
| Victory Capital Management INC | 1.3k | 0.13% | $7.2M | added +492.1% | 2023 Q3 |
| Millennium Management | 1.2k | 0.12% | $6.6M | added +214.7% | 2022 Q2 |
| Goldman Sachs | 1.2k | 0.12% | $6.6M | added +5.2% | ≤2013 |
| Robeco Institutional Asset Management B.v. | 1.2k | 0.12% | $6.6M | opened | 2026 Q1 |
| D. E. Shaw | 1.1k | 0.12% | $6.4M | trimmed -19% | 2017 Q2 |
| Creative Planning | 1.1k | 0.12% | $6.3M | added +12.2% | 2024 Q2 |
| First Trust Advisors LP | 1.1k | 0.11% | $6.0M | trimmed -9.3% | 2020 Q2 |
| Heartland Advisors INC | 1.0k | 0.10% | $5.7M | trimmed -50% | 2024 Q3 |
| State of Alaska, Department of Revenue | 983 | 0.10% | $5.6M | unchanged | 2021 Q1 |
| Connor, Clark & Lunn Investment Management LTD. | 805 | 0.08% | $4.6M | trimmed -13.1% | 2024 Q1 |
| Maverick Capital | 741 | 0.08% | $4.2M | added +6.9% | 2025 Q4 |
| OP Asset Management LTD | 720 | 0.07% | $4.1M | opened | 2025 Q1 |
| Bessemer Group INC | 709 | 0.07% | $4.0M | unchanged | 2025 Q4 |
| Quantinno Capital Management LP | 683 | 0.07% | $3.9M | added +200.9% | 2025 Q2 |
| Neuberger Berman Group LLC | 645 | 0.07% | $3.6M | trimmed -1.4% | 2025 Q1 |
| Dark Forest Capital Management LP | 628 | 0.07% | $3.6M | trimmed -30.1% | 2025 Q4 |
| Occudo Quantitative Strategies LP | 597 | 0.06% | $3.4M | trimmed -52.4% | 2025 Q3 |
| Swiss National Bank | 575 | 0.06% | $3.3M | added +1.8% | ≤2013 |
| Acadian Asset Management | 563 | 0.06% | $3.2M | trimmed -22.8% | 2025 Q3 |
| Bank OF America CORP /DE/ | 556 | 0.06% | $3.1M | trimmed -9.2% | ≤2013 |
| Nuveen | 520 | 0.05% | $2.9M | added +10.6% | 2019 Q2 |
Largest 50 of 196 shown; the full ranked, searchable register is at boothcheck.com/holders/SEB. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.