Institutional Ownership
Sionna Therapeutics Inc
CUSIP 829401108COMSIONQ1 2026
Institutional Holders
117
13F filers
Shares Held
44.11M
Aggregate institutional
Institutional Value
$1.73B
Q1 2026
Net New Holders
+18
27 new · 9 closed
Institutional Ownership Trend
Aggregate 13F value by quarter
Multi-quarter trend — upgrade to see history
UpgradePosition Activity
Q1 2026
New positions27
Increased40
Decreased30
Sold out9
Institutional Holders
117 funds hold this security · Q1 2026
| # | Fund | Shares | Value | Δ Shares | Activity |
|---|---|---|---|---|---|
| 1 | Ra Capital Management, L.P. | 9.91M | $397.09M | 0 | Held |
| 2 | Tpg Gp A, LLC | 6.49M | $260.38M | −250.0K | Reduced |
| 3 | Orbimed Advisors LLC | 3.53M | $141.55M | −31.0K | Reduced |
| 4 | Viking Global Investors LP | 3.20M | $128.09M | 0 | Held |
| 5 | Atlas Venture Life Science Advisors, LLC | 3.00M | $120.09M | 0 | Held |
| 6 | Enavate Sciences Gp, LLC | 2.48M | $99.34M | 0 | Held |
| 7 | Jennison Associates LLC | 1.45M | $58.18M | +335.9K | Added |
| 8 | Jpmorgan Chase & Co | 1.47M | $53.71M | +233.2K | Added |
| 9 | Blackrock, Inc. | 1.30M | $51.95M | +4.3K | Added |
| 10 | Citadel Advisors LLC | 1.17M | $46.78M | +79.6K | Added |
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