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 18 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

Date	Insider	Role	Type	Shares	Price	Value	Chg%	3M	12M
Jul 7, 2026	Orbimed Advisors LLC66	Director	Sell	85,918	$44.86	$3,854,281.48	-3.4%	-	-
Jul 7, 2026	Thompson Peter A.63	Director	Sell	85,918	$44.86	$3,854,281.48	-3.4%	-	-
May 27, 2026	Thompson Peter A.63	Director	Sell	101	$44.49	$4,493.49	-	-	-
May 27, 2026	Orbimed Advisors LLC66	Director	Sell	101	$44.49	$4,493.49	-	-	-
May 11, 2026	Thompson Peter A.63	Director	Sell	292,952	$45.62	$13,364,064.50	-3.4%	-	-
Apr 18, 2026	Orbimed Advisors LLC66	Director	Sell	55,345	$44.67	$2,472,342.92	-0.9%	+4.0%	-
Apr 18, 2026	Thompson Peter A.63	Director	Sell	55,345	$44.67	$2,472,342.92	-0.9%	+4.0%	-
Apr 16, 2026	Thompson Peter A.63	Director	Sell	510,583	$44.94	$22,945,043.50	-5.0%	-1.9%	-
Apr 16, 2026	Orbimed Advisors LLC66	Director	Sell	510,583	$44.94	$22,945,043.50	-5.0%	-1.9%	-
Dec 24, 2025	Thompson Peter A.63	Director	Sell	33,356	$44.55	$1,486,009.80	-0.9%	-21.0%	-

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Insider	Role	Shares	Value	Buys	Sells

Date	Ticker	Insider	Role	Type	Shares	Price	Value	Chg%	SEC