5 institutions reported holding $8.2M of VANGUARD STAR FD TL INT STK ID (VTSNX) in SEC 13F filings for 2026-06-30. Largest institutional holders: GROUP ONE TRADING LLC ($3.7M), IMC-Chicago, LLC ($3.3M), SIMPLEX TRADING, LLC ($1.0M), STALEY CAPITAL ADVISERS INC ($211,069), RHL GROUP, LLC ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $3.7M | 42,800 | Added |
| 2 | IMC-Chicago, LLC | $3.3M | 38,500 | Trimmed |
| 3 | SIMPLEX TRADING, LLC | $1.0M | 12,100 | Trimmed |
| 4 | STALEY CAPITAL ADVISERS INC | $211,069 | 4,594 | New |
| 5 | RHL GROUP, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30