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CIK 0002036042 · Non-accelerated filer<br>Smaller reporting company<br>Emerging growth company

Sionna Therapeutics, Inc.

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Ticker
SION
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
FY end
Dec 31
Incorporated
DE
Entity type
operating
Phone
617-819-2020
Business address
21 HICKORY DRIVE, SUITE 500, WALTHAM, MA, 02451
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$21,835,018
in 1 filing

Net −$21,835,018. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. RA CAPITAL MANAGEMENT, L.P. −$21.8M Director sold 50% of stake
Date Insider Transaction Shares Price Value Owned after
2025-02-06 Viney Joanne L. Director Grant or award · Stock Option (Right to Buy) +39,919 39,919
2025-02-06 Cloonan Michael President & CEO Grant or award · Stock Option (Right to Buy) +450,252 450,252
2025-02-06 Ridloff Elena CFO & Head of Corp. Dev. Grant or award · Stock Option (Right to Buy) +157,820 157,820
2025-02-06 McKee Charlotte Chief Medical Officer Grant or award · Stock Option (Right to Buy) +148,536 148,536

Page 15 of 15 · 284 trades