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  4. SIONNA THERAPEUTICS INC.
Sionna Therapeutics Inc. XNAS: SION
24.00 0.94 (4.08%)
323.1K
XNAS Volume

XNAS 05 Sep, 2025 5:30 PM (EDT)

Board Meeting
The next board meeting for Sionna Therapeutics Inc. is on 08 Sep 2025 for the purpose of Morgan Stanley 23rd Annual Global Healthcare Conference See details


Insider Trading disclosures for Sionna Therapeutics Inc.

The latest disclosure was made by Elena H. Ridloff in Sionna Therapeutics Inc. where a trade of 8,836 Common Stock done at an average price of $25.1 was reported to US exchanges on Aug. 29, 2025.

Insider trading is the trading of a company’s securities by individuals with access to confidential or material non-public information about the company. A company is required to report trading by corporate officers, directors, or other company members with significant access to privileged information to the Securities and Exchange Commission (SEC).

Client Name Client Category Action Reported to Exchange Quantity Post Transaction Holding Traded % Avg. Price Value Security Type
Elena H. Ridloff CFO & Head of Corp. Dev. Sale of securities on an exchange or to another person at price $ 25.08 per share. 29 Aug 2025 8,836 38,532 - 25.1 221,607 Common Stock
Elena H. Ridloff CFO & Head of Corp. Dev. Sale of securities on an exchange or to another person at price $ 25.18 per share. 29 Aug 2025 748 47,368 - 25.2 18,835 Common Stock
Elena H. Ridloff CFO & Head of Corp. Dev. Sale of securities on an exchange or to another person at price $ 25.97 per share. 26 Aug 2025 16,098 48,116 - 26.0 418,065 Common Stock
Elena H. Ridloff CFO & Head of Corp. Dev. Sale of securities on an exchange or to another person at price $ 25.13 per share. 26 Aug 2025 3,700 67,832 - 25.1 92,981 Common Stock
Elena H. Ridloff CFO & Head of Corp. Dev. Sale of securities on an exchange or to another person at price $ 25.10 per share. 26 Aug 2025 3,618 64,214 - 25.1 90,812 Common Stock
Michael Cloonan Director, President & CEO Sale of securities on an exchange or to another person at price $ 25.01 per share. 26 Aug 2025 7,426 547,343 - 25.0 185,714 Common Stock
Michael Cloonan Director, President & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 6.11 per share. 26 Aug 2025 7,426 554,769 - 6.1 45,373 Common Stock
Michael Cloonan Director, President & CEO Sale of securities on an exchange or to another person at price $ 24.96 per share. 26 Aug 2025 17,574 547,343 - 25.0 438,647 Common Stock
Michael Cloonan Director, President & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 6.11 per share. 26 Aug 2025 17,574 564,917 - 6.1 107,377 Common Stock
Michael Cloonan Director, President & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 26 Aug 2025 17,574 210,568 - - Non-Qualified Stock Option (right to buy)
Michael Cloonan Director, President & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 26 Aug 2025 7,426 203,142 - - Non-Qualified Stock Option (right to buy)
Michael Cloonan Director, President & CEO Sale of securities on an exchange or to another person at price $ 22.75 per share. 20 Aug 2025 25,000 547,343 - 22.8 568,750 Common Stock
Michael Cloonan Director, President & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 6.11 per share. 20 Aug 2025 25,000 572,343 - 6.1 152,750 Common Stock
Michael Cloonan Director, President & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 20 Aug 2025 25,000 228,142 - - Non-Qualified Stock Option (right to buy)
Elena H. Ridloff CFO & Head of Corp. Dev. Sale of securities on an exchange or to another person at price $ 21.08 per share. 19 Aug 2025 34,500 89,032 - 21.1 727,260 Common Stock
Elena H. Ridloff CFO & Head of Corp. Dev. Sale of securities on an exchange or to another person at price $ 22.69 per share. 19 Aug 2025 17,500 71,532 - 22.7 397,075 Common Stock
Laurie D. Stelzer Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jun 2025 19,959 19,959 - - Non-Qualified Stock Option (right to buy)
Marcella Kuhlman Ruddy Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jun 2025 19,959 19,959 - - Non-Qualified Stock Option (right to buy)
H. Edward Fleming Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jun 2025 19,959 19,959 - - Non-Qualified Stock Option (right to buy)
Joanne Louise Viney Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jun 2025 19,959 19,959 - - Non-Qualified Stock Option (right to buy)
Joshua Resnick Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jun 2025 19,959 19,959 - - Non-Qualified Stock Option (right to buy)
Bruce Booth Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jun 2025 19,959 19,959 - - Non-Qualified Stock Option (right to buy)
Peter A. Thompson Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jun 2025 19,959 19,959 - - Non-Qualified Stock Option (right to buy)
Paul J. Clancy Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jun 2025 19,959 19,959 - - Non-Qualified Stock Option (right to buy)
Peter A. Thompson Director 10 Feb 2025 3,154,959 3,154,959 - - Common Stock
Peter A. Thompson Director Purchase of securities on an exchange or from another person at price $ 18.00 per share. 10 Feb 2025 550,000 3,704,959 - 18 9,900,000 Common Stock
Peter A. Thompson Director 10 Feb 2025 2,048,760 0 - - Series C convertible preferred stock
Peter A. Thompson Director 10 Feb 2025 2,560,951 0 - - Series B convertible preferred stock
Bruce Booth Director 10 Feb 2025 61,463 0 - - Series C convertible preferred stock
Bruce Booth Director 10 Feb 2025 1,092,504 0 - - Series C convertible preferred stock
Bruce Booth Director 10 Feb 2025 2,886,293 2,886,293 - - Common Stock
Bruce Booth Director 10 Feb 2025 747,727 747,727 - - Common Stock
Bruce Booth Director Purchase of securities on an exchange or from another person at price $ 18.00 per share. 10 Feb 2025 60,000 807,727 - 18 1,080,000 Common Stock
Bruce Booth Director 10 Feb 2025 1,051,051 0 - - Series Seed convertible preferred stock
Bruce Booth Director 10 Feb 2025 1,806,317 0 - - Series A convertible preferred stock
Bruce Booth Director 10 Feb 2025 1,298,332 0 - - Series B convertible preferred stock
Elena H. Ridloff CFO & Head of Corp. Dev. Grant, award, or other acquisition of securities at price $ 0.00 per share. 06 Feb 2025 157,820 157,820 - - Stock Option (Right to Buy)
Michael Cloonan Director, President & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 06 Feb 2025 450,252 450,252 - - Stock Option (Right to Buy)
Joanne Louise Viney Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 06 Feb 2025 39,919 39,919 - - Stock Option (Right to Buy)
Marcella Kuhlman Ruddy Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 06 Feb 2025 39,919 39,919 - - Stock Option (Right to Buy)
Charlotte McKee Chief Medical Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 06 Feb 2025 148,536 148,536 - - Stock Option (Right to Buy)
*All Values are in $ Million
Client Category: Promoter/ KMP/ Director / Immediate Relatives / Employee / etc  
Security Type: Share/ Warrants / Convertible Debentures
Data as reported to USA Exchanges
View All The Insider Trades disclosures