SION · CUSIP 829401108
SIONNA THERAPEUTICS INC
Reported by 1 of 79 curated managers in Q2 2026, in the holdings snapshot last exported 2026-08-24.
- Managers holding
- 1
- Average portfolio weight
- 0.4%
- Combined reported value
- $140.6M
- Research group
- 79
1 of the 79 superinvestors Shameless Cloning tracks reported SIONNA THERAPEUTICS INC (SION) in their Q2 2026 13F filings, worth $140.6M combined, at an average 0.4% of their portfolios. The largest positions by portfolio weight belong to Viking Global Investors (0.4%).
Reporting managers
This is a historical 13F snapshot, not a live shareholder register. The count covers all matched managers; dashboard rankings use only those with at least 95% coverage. Reported value is measured at filing quarter-end, not at today's price.
| Manager / SEC filer | % of portfolio | Reported value |
|---|---|---|
| Viking Global InvestorsVIKING GLOBAL INVESTORS LP | 0.4% | $140.6M |