CUSIP: 831445507 | 21 institutional holders
5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.
| Holder | Shares | % of Class | Change | Event Date | vs 13F |
|---|---|---|---|---|---|
| 13DHongyu Zhou | 5,816,489 | 13.8% | New 5%+ stake | Jan 21, 2026 | No 13F filer matched |
| Style | Turnover | Location | Filed | ||||
|---|---|---|---|---|---|---|---|
| 409,912 | $342.8K | 0.0% | Index | Very Low | Boston, MA | 2026-05-15 | |
| 402,709 | $336.7K | 0.0% | Core | N/A | Malvern, PA | 2026-05-15 | |
| 394,830 | $330.1K | 0.0% | Core | Medium | Zurich, Switzerland | 2026-05-05 | |
| 117,577 | $98.3K | 0.0% | Index | Very Low | Boston, MA | 2026-05-15 | |
| 93,237 | $77.9K | 0.0% | Value | Very High | New York, NY | 2026-05-15 | |
| 85,286 | $71.3K | 0.0% | Index | Very Low | Chicago, IL | 2026-05-14 | |
| 44,791 | $37.4K | 0.0% | Core | Very High | New York, NY | 2026-05-15 | |
| 21,770 | $18.2K | 0.0% | Value | Medium | Levis, Austria | 2026-05-14 | |
| 18,000 | $15.0K | 0.0% | Value | Medium | Independence, OH | 2026-05-06 | |
| 14,100 | $11.8K | 0.0% | ETF | Very Low | Miami, FL | 2026-04-23 | |
| 7 | $6 | 0.0% | Growth | Low | Copenhagen V, Greece | 2026-05-12 | |
| 5 | $0 | 0.0% | Value | Low | Bar Harbor, ME | 2026-04-22 | |
| 1 | $1 | 0.0% | Core | Medium | New York, NY | 2026-05-11 | |
| 1 | $1 | 0.0% | Index | Very Low | Independence, OH | 2026-05-15 | |
| 0 | $0 | 0.0% | N/A | N/A | Valley Forge, PA | 2026-05-14 |