SION

SIONNA THERAPEUTICS INC

Institutional Ownership · Q4 2025

Filing: Q4 2025

SIONNA THERAPEUTICS INC (SION) is held by 98 institutional investors with combined holdings of $1.8B. Major holders include RA CAPITAL MANAGEMENT, L., TPG GP A, LLC, ORBIMED ADVISORS LLC.

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Institutional Holders

Total Value

$1.8B

Ownership %

97.3%

🏦 Top Institutional Holders

RA CAPITAL MANAGEMENT, L.P.

VIKING GLOBAL INVESTORS LP

3.2M shares

$131.4M

7.08% ownership

Atlas Venture Life Science Advisors, LLC

3.0M shares

$123.2M

6.64% ownership

📊 Financials

Income statement, balance sheet, and cash flow from SEC filings.

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