SION — SIONNA THERAPEUTICS INC

Ownership history in BRAIDWELL LP  ·  2 quarters on record

This page tracks every 13F SEC filing in which BRAIDWELL LP reported a position in SIONNA THERAPEUTICS INC (SION). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.64% (2025 Q2)
Avg. % of fund
0.46%
First filed
2025 Q2
Last filed
2025 Q3
Quarters held
2
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 314,013 -767,842 -71.0% 0.27% $9.2M $29.41
2025 Q2 INITIATED 1,081,855 — — 0.64% $18.8M $17.35
% of Fund (quarterly)    SION price (monthly, adj. close)

Other funds also holding SION

As of 2025 Q4 — sorted by position size

Atlas Venture Life Science Advisors, LLC 3Y 14.24% TPG GP A, LLC 3Y 10.33% RA CAPITAL MANAGEMENT, L.P. 3Y 7Y 4.17% SUPERSTRING CAPITAL MANAGEMENT LP 3.98% ORBIMED ADVISORS LLC 3Y 7Y 2.99% PERCEPTIVE ADVISORS LLC 3Y 7Y 0.86% Artia Global Partners LP 3Y 0.7% DEERFIELD MANAGEMENT COMPANY, L.P. 3Y 7Y 0.51% EVENTIDE ASSET MANAGEMENT, LLC 3Y 7Y 0.41% Soleus Capital Management, L.P. 3Y 0.41%
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