VIKING GLOBAL INVESTORS LP 13D/13G Filings for Sionna Therapeutics, Inc. (SION)

VIKING GLOBAL INVESTORS LP 13D and 13G filings for Sionna Therapeutics, Inc.:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
  • Shares have been adjusted for stock splits.
Time period
Reported
DateTime
Transaction
Date
Type Company
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev Report View
2025-02-14
4:58 pm
Purchase
2025-02-10 13G Sionna Therapeutics, Inc.
SION
VIKING GLOBAL INVESTORS LP 2,952,754
6.700%
2,952,754increase
(New Position)
Filing