ATHA — LeonaBio Inc Institutional Holders · Q2 2026
Who owns LeonaBio Inc (ATHA)? 3 institutions reported holding $1.37M in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Simplify Asset Management Inc. ($1.4M), American Capital Advisory, LLC ($1,838), SBI Securities Co., Ltd. ($110).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Simplify Asset Management Inc. | $1.4M | 149,279 | Hold |
| 2 | American Capital Advisory, LLC | $1,838 | 200 | Hold |
| 3 | SBI Securities Co., Ltd. | $110 | 12 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30