Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
389 institutional managers reported holding SR for the quarter ended Mar 31, 2026. Together they hold about 88% of shares outstanding; the top 10 hold 48%. 61 opened new positions; 31 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 7.98M | 13.48% | $720.1M | trimmed -1.3% | 2016 Q2 |
| Vanguard Group | 6.56M | 11.08% | $592.2M | added +1.9% | 2016 Q2 |
| State Street | 2.98M | 5.03% | $268.6M | trimmed -5.8% | 2016 Q1 |
| Deutsche Bank AG\ | 2.18M | 3.69% | $197.1M | trimmed -11.8% | 2016 Q2 |
| American Century Companies INC | 2.09M | 3.53% | $188.8M | trimmed -7% | 2016 Q2 |
| Geode Capital | 1.71M | 2.88% | $154.1M | added +8.1% | 2016 Q2 |
| Fuller & Thaler Asset Management, INC. | 1.65M | 2.78% | $148.7M | added +1.4% | 2021 Q1 |
| Captrust Financial Advisors | 1.23M | 2.07% | $110.8M | trimmed -1.1% | 2024 Q3 |
| Adage Capital Partners GP, L.l.c. | 1.20M | 2.03% | $108.4M | added +7% | 2025 Q1 |
| Nuveen | 1.08M | 1.83% | $97.7M | trimmed -3% | 2016 Q2 |
| Dimensional Fund Advisors | 1.02M | 1.73% | $92.4M | unchanged | 2016 Q2 |
| Nomura Asset Management International INC. | 957.8k | 1.62% | $86.4M | trimmed -35.5% | 2025 Q4 |
| Duff & Phelps Investment Management CO | 932.6k | 1.57% | $84.2M | trimmed -5.2% | 2016 Q2 |
| Morgan Stanley | 870.6k | 1.47% | $78.6M | trimmed -20.2% | 2016 Q2 |
| Vaughan Nelson Investment Management, L.p. | 851.7k | 1.44% | $76.9M | trimmed -10.8% | 2025 Q1 |
| Northern Trust | 764.9k | 1.29% | $69.0M | added +3.8% | 2016 Q2 |
| Charles Schwab Investment Management | 732.9k | 1.24% | $66.1M | trimmed -0.9% | 2016 Q2 |
| MFS Investment Management | 715.3k | 1.21% | $64.6M | added +20.4% | 2025 Q3 |
| Thrivent Financial for Lutherans | 699.1k | 1.18% | $63.1M | unchanged | 2016 Q2 |
| UBS | 675.6k | 1.14% | $61.0M | added +22.7% | 2016 Q2 |
| Wellington Management | 658.7k | 1.11% | $59.5M | added +18.3% | 2016 Q2 |
| Goldman Sachs | 631.2k | 1.07% | $57.0M | trimmed -2.5% | 2016 Q2 |
| BNY Mellon | 610.0k | 1.03% | $55.1M | unchanged | 2016 Q2 |
| Invesco | 604.8k | 1.02% | $54.6M | trimmed -19.2% | 2016 Q2 |
| First Trust Advisors LP | 547.6k | 0.93% | $49.4M | trimmed -4.7% | 2016 Q2 |
| T. Rowe Price Investment Management, INC. | 494.1k | 0.83% | $44.6M | added +163.3% | 2025 Q3 |
| Manufacturers Life Insurance Company, THE | 479.7k | 0.81% | $43.3M | unchanged | 2016 Q2 |
| OLD Republic International CORP | 433.5k | 0.73% | $39.1M | unchanged | 2016 Q2 |
| AQR Capital | 412.8k | 0.70% | $37.3M | added +12.5% | 2018 Q4 |
| Energy Income Partners, LLC | 402.3k | 0.68% | $36.3M | added +1.6% | 2025 Q4 |
| Jupiter Asset Management LTD | 387.2k | 0.65% | $34.9M | added +2.3% | 2025 Q1 |
| ProShare Advisors LLC | 385.7k | 0.65% | $34.8M | trimmed -17.2% | 2016 Q2 |
| Bank OF America CORP /DE/ | 385.7k | 0.65% | $34.8M | trimmed -3.7% | 2016 Q2 |
| ExodusPoint | 376.1k | 0.64% | $33.9M | added +28.2% | 2021 Q1 |
| Victory Capital Management INC | 371.2k | 0.63% | $33.5M | added +2.1% | 2019 Q3 |
| William Blair Investment Management, LLC | 350.0k | 0.59% | $31.6M | added +3.2% | 2021 Q2 |
| Qube Research & Technologies LTD | 326.6k | 0.55% | $29.5M | added +398.2% | 2025 Q4 |
| Legal & General Group PLC | 282.8k | 0.48% | $25.5M | trimmed -7.8% | 2016 Q2 |
| Wedge Capital Management L L P/NC | 213.0k | 0.36% | $19.2M | added +532.8% | 2024 Q4 |
| Rhumbline Advisers | 192.1k | 0.33% | $17.3M | added +0.7% | 2016 Q2 |
| South Street Advisors LLC | 190.1k | 0.32% | $17.2M | added +3.3% | 2025 Q4 |
| Principal Financial Group INC | 188.4k | 0.32% | $17.0M | trimmed -28.2% | 2016 Q2 |
| Resolution Capital LTD (focused) | 162.4k | 0.27% | $14.7M | added +14.9% | 2025 Q3 |
| CalPERS | 152.3k | 0.26% | $13.7M | trimmed -5.4% | 2016 Q2 |
| Exchange Traded Concepts, LLC | 151.5k | 0.26% | $13.7M | added +9% | 2021 Q3 |
| Hotchkis & Wiley Capital Management LLC | 148.2k | 0.25% | $13.4M | trimmed -6.1% | 2018 Q2 |
| Natixis Advisors, LLC | 145.3k | 0.25% | $13.1M | trimmed -28% | 2025 Q1 |
| Leeward Investments, LLC - MA | 141.0k | 0.24% | $12.7M | added +19.4% | 2022 Q1 |
| GAMCO (Gabelli) | 128.4k | 0.22% | $11.6M | unchanged | 2016 Q2 |
| Edgestream Partners, L.p. | 125.5k | 0.21% | $11.3M | added +226.5% | 2025 Q4 |
Largest 50 of 389 shown; the full ranked, searchable register is at boothcheck.com/holders/SR. 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.