Type / Class
Equity / Common Stock, $0.001 par value per share
Shares outstanding
44,565,097
Total 13F shares
42,840,564
Share change
-608,448
Total reported value
$1,259,943,482
Price per share
$29.41
Number of holders
78
Value change
-$14,718,322
Number of buys
38
Number of sells
25

Institutional Holders of Sionna Therapeutics, Inc. - Common Stock, $0.001 par value per share (SION) as of Q3 2025

As of 30 Sep 2025, Sionna Therapeutics, Inc. - Common Stock, $0.001 par value per share (SION) was held by 78 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 42,840,564 shares. The largest 10 holders included RA CAPITAL MANAGEMENT, L.P., TPG GP A, LLC, ORBIMED ADVISORS LLC, Atlas Venture Life Science Advisors, LLC, VIKING GLOBAL INVESTORS LP, ENAVATE SCIENCES GP, LLC, JPMORGAN CHASE & CO, PERCEPTIVE ADVISORS LLC, VANGUARD GROUP INC, and JENNISON ASSOCIATES LLC. This page lists 78 institutional shareholders reporting positions in this security for the Q3 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.