Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
148 institutional managers reported holding SSL for the quarter ended Mar 31, 2026. Together they hold about 5% of shares outstanding; the top 10 hold 3%. 43 opened new positions; 16 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Morgan Stanley | 3.11M | 0.49% | $40.4M | added +25.3% | ≤2013 |
| Goldman Sachs | 2.35M | 0.37% | $30.4M | added +119.3% | ≤2013 |
| D. E. Shaw | 2.30M | 0.36% | $29.8M | added +81.9% | 2023 Q1 |
| BlackRock | 2.08M | 0.33% | $26.9M | added +8.5% | 2021 Q1 |
| Connor, Clark & Lunn Investment Management LTD. | 1.88M | 0.29% | $24.3M | added +48.8% | 2021 Q3 |
| American Century Companies INC | 1.65M | 0.26% | $21.4M | added +23.1% | 2020 Q1 |
| Voleon Capital Management LP | 1.46M | 0.23% | $18.9M | added +34% | 2025 Q3 |
| Point72 | 1.33M | 0.21% | $17.3M | added +157.8% | 2023 Q4 |
| Capital Wealth Planning, LLC | 1.23M | 0.19% | $16.0M | opened | 2026 Q1 |
| UBS | 1.02M | 0.16% | $13.2M | added +22.3% | ≤2013 |
| Barclays PLC | 995.9k | 0.16% | $12.9M | added +256.9% | 2025 Q4 |
| Capital International Investors | 878.0k | 0.14% | $11.4M | opened | 2026 Q1 |
| Pictet Asset Management Holding SA | 870.7k | 0.14% | $11.3M | opened | 2026 Q1 |
| Arrowstreet Capital | 796.2k | 0.13% | $10.3M | added +3.1% | 2025 Q3 |
| Assenagon Asset Management S.a. | 618.4k | 0.10% | $8.0M | opened | 2026 Q1 |
| Dimensional Fund Advisors | 616.9k | 0.10% | $8.0M | trimmed -9.3% | ≤2013 |
| Mudita Advisors LLP (focused) | 607.3k | 0.10% | $7.9M | opened | 2026 Q1 |
| Creative Planning | 480.0k | 0.07% | $6.2M | added +15.8% | 2023 Q1 |
| Citadel Advisors | 459.4k | 0.07% | $6.0M | trimmed -9.1% | 2018 Q2 |
| Jane Street | 403.6k | 0.06% | $5.2M | added +524.5% | 2024 Q3 |
| O'shaughnessy Asset Management, LLC | 371.9k | 0.06% | $4.8M | added +91.7% | 2022 Q2 |
| Renaissance Technologies | 350.5k | 0.06% | $4.5M | trimmed -40% | 2021 Q4 |
| Glenorchy Capital LTD | 348.2k | 0.06% | $4.5M | opened | 2026 Q1 |
| Bank OF America CORP /DE/ | 341.9k | 0.05% | $4.4M | trimmed -2.2% | ≤2013 |
| LPL Financial LLC | 336.3k | 0.05% | $4.4M | added +159.9% | 2023 Q1 |
| Mariner, LLC | 232.0k | 0.04% | $3.0M | unchanged | 2023 Q3 |
| Stifel Financial CORP | 216.1k | 0.03% | $2.8M | added +2.4% | 2023 Q4 |
| Millennium Management | 213.6k | 0.03% | $2.8M | trimmed -6.7% | 2013 Q3 |
| BNP Paribas Financial Markets | 206.0k | 0.03% | $2.7M | trimmed -41.5% | 2021 Q2 |
| Pacer Advisors, INC. | 205.6k | 0.03% | $2.7M | added +12.5% | 2023 Q4 |
| Two Sigma | 180.4k | 0.03% | $2.3M | trimmed -81.3% | 2022 Q4 |
| Pekin Hardy Strauss, INC. | 171.3k | 0.03% | $2.2M | added +490.7% | 2025 Q4 |
| Quantinno Capital Management LP | 166.5k | 0.03% | $2.2M | added +40.6% | 2025 Q3 |
| Public Employees Retirement System OF Ohio | 159.1k | 0.03% | $2.1M | added +14.3% | 2024 Q3 |
| Quadrant Capital Group LLC | 153.8k | 0.02% | $2.0M | unchanged | 2015 Q2 |
| HRT Financial LP | 153.3k | 0.02% | $2.0M | opened | 2026 Q1 |
| Susquehanna International Group | 113.5k | 0.02% | $1.5M | added +127.2% | 2023 Q1 |
| Wells Fargo & COMPANY/MN | 104.7k | 0.02% | $1.4M | added +785.3% | ≤2013 |
| Barometer Capital Management INC. | 99.0k | 0.02% | $1.3M | added +258.7% | 2023 Q4 |
| Sanctuary Advisors, LLC | 95.0k | 0.01% | $1.2M | opened | 2026 Q1 |
| Marex Group plc | 84.0k | 0.01% | $1.1M | added +180% | 2025 Q4 |
| Simplex Trading, LLC | 81.1k | 0.01% | $1.1M | added +614.1% | 2018 Q4 |
| Integrated Wealth Concepts LLC | 77.3k | 0.01% | $1.0M | added +10.4% | 2025 Q2 |
| Ritholtz Wealth Management | 61.3k | 0.01% | $795k | added +166.6% | 2025 Q4 |
| Vanguard Group | 59.7k | <0.01% | $774k | added +32.6% | 2023 Q2 |
| Old West Investment Management, LLC | 59.2k | <0.01% | $767k | opened | 2026 Q1 |
| Trexquant Investment LP | 59.1k | <0.01% | $765k | trimmed -71% | 2022 Q1 |
| Capital International, INC./CA/ | 58.9k | <0.01% | $763k | opened | 2026 Q1 |
| AQR Capital | 57.1k | <0.01% | $740k | added +21% | 2025 Q2 |
| Group ONE Trading LLC | 56.0k | <0.01% | $726k | opened | 2024 Q4 |
Largest 50 of 148 shown; the full ranked, searchable register is at boothcheck.com/holders/SSL. 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.