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 9 insiders with recent SEC Form 4 filings, including 0 buys and 68 sells. SION is classified in the Biotechnology industry within the Health Care sector.

Insider Ownership

Role	Insider	Shares	Value	30d
Dir	Thompson Peter A.	2.47M	$116.93M	-
Dir	Orbimed Advisors LLC	2.47M	$116.93M	-
Dir	Booth Bruce	2.31M	$109.31M	-
10%	Ra Capital Management, L.P.	2.20M	$104.06M	-
CEO	Cloonan Michael	436.1K	$20.64M	-

Activity

Buys and sells only

Transactions

10 filings · page 2

Date	Insider	Role	Type	Shares	Price	Value	Chg%	3M	12M
Dec 24, 2025	Orbimed Advisors LLC66	Director	Sell	33,356	$44.55	$1,486,009.80	-0.9%	-21.0%	-
Dec 19, 2025	Orbimed Advisors LLC66	Director	Sell	1,875	$44.49	$83,427.75	-	-16.2%	-
Dec 19, 2025	Thompson Peter A.63	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 LLC66	Director	Sell	108,073	$44.55	$4,814,204.82	-1.0%	-14.8%	-
Nov 26, 2025	Thompson Peter A.63	Director	Sell	108,073	$44.55	$4,814,204.82	-1.0%	-14.8%	-
Nov 21, 2025	Ra Capital Management, L.P.52	Director, 10% Owner	Sell	30,316	$39.61	$1,200,703.87	-0.1%	-14.5%	-
Nov 19, 2025	Ra Capital Management, L.P.52	Director, 10% Owner	Sell	136,351	$40.34	$5,500,158.01	-0.2%	-1.0%	-
Oct 28, 2025	Ra Capital Management, L.P.52	Director, 10% Owner	Sell	373,610	$39.51	$14,762,603.80	-1.8%	+8.0%	-
Oct 21, 2025	Booth Bruce70	Director	Sell	88,878	$34.22	$3,041,683.18	-0.6%	-5.9%	-

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Insider	Role	Shares	Value	Buys	Sells

Date	Ticker	Insider	Role	Type	Shares	Price	Value	Chg%	SEC