Andreas Halvorsen - Viking Global Investors
Holding/activity history for Sionna Therapeutics, Inc. (SION)
← All SION superinvestors
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026 Q1 | 3,195,181 | 0.36 | $40.09 | $128,094,806 | SEC | ||
| 2025 Q4 | 3,195,181 | 0.35 | $41.14 | $131,449,746 | SEC | ||
| 2025 Q3 | 3,195,181 | 0.24 | $29.41 | $93,970,273 | SEC | ||
| 2025 Q2 | 3,195,181 | 0.16 | Add 8.21% | 0.01 | $7.26–18.85 · VW $13.44i | $55,436,390 | SEC |
| 2025 Q1 | 2,952,754 | 0.10 | Buy | 0.10 | $10.27–25.19 · VW $17.36i IPO/listing quarter |
$30,885,807 | SEC |
Price snapshot:
Current price$43.95
Avg. buy price$10.98
+/- since buy300.17%
52-week low$16.38
52-week high$48.44