Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
275 institutional managers reported holding SNN for the quarter ended Mar 31, 2026. Together they hold about 4% of shares outstanding; the top 10 hold 2%. 46 opened new positions; 33 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| River Road Asset Management, LLC | 3.24M | 0.37% | $103.1M | added +2.3% | 2024 Q3 |
| Goldman Sachs | 2.46M | 0.28% | $78.3M | added +19.9% | ≤2013 |
| Bank OF Montreal /CAN/ | 2.24M | 0.26% | $71.3M | trimmed -30.6% | ≤2013 |
| LMR Partners LLP | 1.77M | 0.20% | $56.2M | opened | 2026 Q1 |
| Todd Asset Management LLC | 1.39M | 0.16% | $44.3M | added +47.5% | 2025 Q3 |
| Morgan Stanley | 1.39M | 0.16% | $44.0M | trimmed -22.6% | ≤2013 |
| Brandes Investment Partners, LP | 1.34M | 0.15% | $42.7M | added +13.6% | 2023 Q4 |
| Bank OF America CORP /DE/ | 1.24M | 0.14% | $39.4M | trimmed -12.5% | ≤2013 |
| Dimensional Fund Advisors | 1.05M | 0.12% | $33.5M | added +44.5% | ≤2013 |
| Causeway Capital Management LLC | 953.1k | 0.11% | $30.3M | added +57.9% | 2024 Q4 |
| D. E. Shaw | 911.7k | 0.10% | $29.0M | added +251.3% | 2024 Q3 |
| Teachers Retirement System OF THE State OF Kentucky | 905.1k | 0.10% | $28.8M | added +51% | 2025 Q3 |
| Raymond James Financial INC | 888.2k | 0.10% | $28.2M | added +44% | 2014 Q4 |
| Northern Trust | 814.9k | 0.09% | $25.9M | added +21.2% | ≤2013 |
| BNP Paribas Financial Markets | 738.9k | 0.09% | $23.5M | trimmed -20.4% | 2024 Q4 |
| FMR (Fidelity) | 605.5k | 0.07% | $19.3M | added +10.8% | 2018 Q3 |
| BlackRock | 568.3k | 0.07% | $18.1M | added +8.3% | 2016 Q3 |
| Wells Fargo & COMPANY/MN | 517.7k | 0.06% | $16.5M | added +10% | ≤2013 |
| Envestnet Asset Management INC | 463.5k | 0.05% | $14.7M | added +3.1% | ≤2013 |
| Pacer Advisors, INC. | 417.1k | 0.05% | $13.3M | added +104.6% | 2025 Q4 |
| Deprince Race & Zollo INC | 360.0k | 0.04% | $11.4M | trimmed -4.2% | 2022 Q3 |
| Arrowstreet Capital | 343.5k | 0.04% | $10.9M | trimmed -52.4% | 2025 Q3 |
| Royal Bank OF Canada | 337.1k | 0.04% | $10.7M | added +6.7% | ≤2013 |
| UBS | 335.8k | 0.04% | $10.7M | added +101.5% | ≤2013 |
| ABC Arbitrage SA | 290.7k | 0.03% | $9.2M | trimmed -61.6% | 2024 Q4 |
| Quantinno Capital Management LP | 278.2k | 0.03% | $8.8M | added +46.3% | 2023 Q2 |
| Bridgewater Associates | 275.5k | 0.03% | $8.8M | trimmed -11.8% | 2021 Q2 |
| Lorne Steinberg Wealth Management INC. | 266.4k | 0.03% | $8.5M | unchanged | 2022 Q3 |
| Clark Estates INC/NY | 220.0k | 0.03% | $7.0M | trimmed -26.7% | 2023 Q1 |
| South Street Advisors LLC | 215.3k | 0.03% | $6.8M | opened | 2026 Q1 |
| Tocqueville Asset Management L.p. | 209.0k | 0.02% | $6.6M | trimmed -5.9% | 2023 Q4 |
| American Century Companies INC | 204.7k | 0.02% | $6.5M | added +1.8% | 2020 Q3 |
| Pathstone Holdings, LLC | 200.6k | 0.02% | $6.4M | added +30.6% | 2023 Q4 |
| Russell Investments Group, LTD. | 193.0k | 0.02% | $6.1M | trimmed -0.9% | 2022 Q3 |
| Moran Wealth Management, LLC | 173.3k | 0.02% | $5.5M | added +23.8% | 2023 Q4 |
| Tidal Investments LLC | 166.9k | 0.02% | $5.3M | trimmed -46% | 2025 Q3 |
| Kornitzer Capital Management INC /KS | 154.3k | 0.02% | $4.9M | unchanged | ≤2013 |
| NEW York State Common Retirement Fund | 153.4k | 0.02% | $4.9M | unchanged | 2024 Q2 |
| Henry James International Management INC. | 149.9k | 0.02% | $4.8M | unchanged | 2018 Q3 |
| SEI Investments CO | 127.7k | 0.01% | $4.1M | added +29.1% | ≤2013 |
| Charles Schwab Investment Management | 105.6k | 0.01% | $3.4M | added +55.8% | 2023 Q2 |
| Creative Planning | 100.2k | 0.01% | $3.2M | added +25.2% | 2022 Q1 |
| State Street | 99.9k | 0.01% | $3.2M | unchanged | 2017 Q3 |
| Paradigm Asset Management CO LLC | 98.1k | 0.01% | $3.1M | unchanged | 2025 Q3 |
| Crossmark Global Holdings, INC. | 93.9k | 0.01% | $3.0M | trimmed -6.2% | 2017 Q3 |
| Tower Research Capital LLC (TRC) | 93.3k | 0.01% | $3.0M | trimmed -69.6% | 2016 Q2 |
| Citadel Advisors | 80.6k | <0.01% | $2.6M | added +74.7% | 2020 Q1 |
| QRG Capital Management, INC. | 80.3k | <0.01% | $2.6M | added +29.4% | 2023 Q3 |
| LPL Financial LLC | 76.5k | <0.01% | $2.4M | added +9.2% | 2014 Q3 |
| Mariner, LLC | 75.6k | <0.01% | $2.4M | added +3% | 2016 Q3 |
Largest 50 of 275 shown; the full ranked, searchable register is at boothcheck.com/holders/SNN. 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.