ValuationViz

SION fund manager activity

Sionna Therapeutics, Inc · Nasdaq. Reported by 2 tracked fund managers in their 13F filings, Q1 2025 to Q2 2026.

Q2 2026

ManagerActivitySharesValue% of portfolioFiled
Polen Capital ManagementSold out——0.00%Aug 4, 2026
Viking Global InvestorsNo change3,195,181$140,556,0120.40%Aug 14, 2026

Q1 2026

ManagerActivitySharesValue% of portfolioFiled
Polen Capital ManagementTrimmed26,775$1,073,4100.01%May 14, 2026
Viking Global InvestorsNo change3,195,181$128,094,8060.36%May 15, 2026

Older quarters