2 institutions reported holding $1.0M of UNITED PARKS & RESORTS INC (SEAS) in SEC 13F filings for 2026-06-30. Largest institutional holders: SIMPLEX TRADING, LLC ($529,914), IMC-Chicago, LLC ($486,948). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $529,914 | 11,100 | New |
| 2 | IMC-Chicago, LLC | $486,948 | 10,200 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30