1 institutions reported holding $14,693 of SIREN ETF TR (SPQQ) in SEC 13F filings for 2026-03-31. Largest institutional holders: SIMPLEX TRADING, LLC ($14,693). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $14,693 | 700 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31