Type / Class
Equity / Common Stock, $0.001 par value per share
Shares outstanding
44,565,097
Total 13F shares
43,948,480
Share change
+908,240
Total reported value
$1,808,044,956
Price per share
$41.14
Number of holders
100
Value change
+$42,254,824
Number of buys
66
Number of sells
26

Institutional Holders of Sionna Therapeutics, Inc. - Common Stock, $0.001 par value per share (SION) as of Q4 2025

As of 31 Dec 2025, Sionna Therapeutics, Inc. - Common Stock, $0.001 par value per share (SION) was held by 100 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 43,948,480 shares. The largest 10 holders included RA CAPITAL MANAGEMENT, L.P., TPG GP A, LLC, ORBIMED ADVISORS LLC, VIKING GLOBAL INVESTORS LP, Atlas Venture Life Science Advisors, LLC, ENAVATE SCIENCES GP, LLC, BlackRock, Inc., JPMORGAN CHASE & CO, VANGUARD GROUP INC, and PERCEPTIVE ADVISORS LLC. This page lists 100 institutional shareholders reporting positions in this security for the Q4 2025 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.