ATOWW — Atossa Therapeutics Inc Institutional Holders · Q2 2026
Who owns Atossa Therapeutics Inc (ATOWW)? 2 institutions reported holding $96,941 in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Simplex Trading, LLC ($89,028), Group One Trading LLC ($7,913).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $89,028 | 48,300 | Trimmed |
| 2 | GROUP ONE TRADING LLC | $7,913 | 4,100 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30