SION- Sionna Therapeutics, Inc.

Name: Sionna Therapeutics, Inc. Insider Trading Data
Creator: U.S. Securities and Exchange Commission
License: https://www.sec.gov/privacy#accessibility

Sionna Therapeutics, Inc. (SION) has 16 insiders with recent SEC Form 4 filings, including 0 buys and 22 sells. SION is classified in the Biotechnology industry within the Health Care sector.

Insider Ownership

Role	Insider	Shares	Value	30d
10%	Tpg GP A, LLC	6.74M	$291.25M	-
Dir	Thompson Peter A.	2.96M	$128.02M	-565,928
Dir	Orbimed Advisors LLC	2.96M	$128.02M	-565,928
Dir	Booth Bruce	2.31M	$99.71M	-
10%	Ra Capital Management, L.P.	650.3K	$28.08M	-

Activity

Buys and sells only

Transactions

10 filings

Date	Insider	Role	Type	Shares	Price	Value	Chg%	3M	12M
Apr 18, 2026	Orbimed Advisors LLC67	Director	Sell	55,345	$44.67	$2,472,342.92	-0.9%	-	-
Apr 18, 2026	Thompson Peter A.65	Director	Sell	55,345	$44.67	$2,472,342.92	-0.9%	-	-
Apr 16, 2026	Thompson Peter A.65	Director	Sell	510,583	$44.94	$22,945,043.50	-5.0%	-	-
Apr 16, 2026	Orbimed Advisors LLC67	Director	Sell	510,583	$44.94	$22,945,043.50	-5.0%	-	-
Dec 24, 2025	Thompson Peter A.65	Director	Sell	33,356	$44.55	$1,486,009.80	-0.9%	-21.0%	-
Dec 24, 2025	Orbimed Advisors LLC67	Director	Sell	33,356	$44.55	$1,486,009.80	-0.9%	-21.0%	-
Dec 19, 2025	Orbimed Advisors LLC67	Director	Sell	1,875	$44.49	$83,427.75	-	-16.2%	-
Dec 19, 2025	Thompson Peter A.65	Director	Sell	1,875	$44.49	$83,427.75	-	-16.2%	-
Dec 5, 2025	Fitzpatrick Jennifer	Chief Legal Officer	Sale+OE	10,250	$40.52	$415,330.00	-100%	-13.7%	-
Nov 26, 2025	Orbimed Advisors LLC67	Director	Sell	108,073	$44.55	$4,814,204.82	-1.0%	-14.8%	-

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Insider	Role	Shares	Value	Buys	Sells

Date	Ticker	Insider	Role	Type	Shares	Price	Value	Chg%	SEC