LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM

Reporting ownerCIK 0001704336

Michael Cloonan

26 transactions in one company, from October 15, 2025 to September 17, 2026.

Transactions: 261 company
Bought · P: $0open market
Sold · S: $4.4Mopen market
Net: −$4.4Mnet selling

By company

Where this insider traded.

Company	Ticker	Trades	Bought	Sold
Sionna Therapeutics, Inc.	SION	26	—	$4.4M

All transactions

26 in total, newest filings first.

Company	Ticker	Insider	Date	Code	Shares	Price	Value
Sionna Therapeutics, Inc.	SION	Michael CloonanCEODERIV	Sep 17	D	436,100	$0.00	—?
Sionna Therapeutics, Inc.	SION	Michael CloonanCEODERIV	Sep 17	A	436,100	$0.00	—?
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Sep 17	A	109,025	$0.00	—
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Sep 17	A	109,025	$0.00	—
Sionna Therapeutics, Inc.	SION	Michael CloonanCEODERIV	Jan 2	A	436,100	$0.00	—?
Sionna Therapeutics, Inc.	SION	Michael CloonanCEODERIV	Oct 21	MPLAN	33,532	$0.00	—?
Sionna Therapeutics, Inc.	SION	Michael CloonanCEODERIV	Oct 21	MPLAN	22,895	$0.00	—?
Sionna Therapeutics, Inc.	SION	Michael CloonanCEODERIV	Oct 21	MPLAN	30,049	$0.00	—?
Sionna Therapeutics, Inc.	SION	Michael CloonanCEODERIV	Oct 21	MPLAN	13,324	$0.00	—?
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Oct 21	SPLAN	33,532	$37.31	$1.3M
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Oct 21	MPLAN	33,532	$6.11	$205K
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Oct 21	SPLAN	22,895	$36.60	$838K
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Oct 21	MPLAN	22,895	$6.11	$140K
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Oct 21	SPLAN	30,049	$35.63	$1.1M
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Oct 21	MPLAN	30,049	$6.11	$184K
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Oct 21	SPLAN	13,324	$34.44	$459K
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Oct 21	MPLAN	13,324	$6.11	$81K
Sionna Therapeutics, Inc.	SION	Michael CloonanCEODERIV	Oct 16	MPLAN	200	$0.00	—?
Sionna Therapeutics, Inc.	SION	Michael CloonanCEODERIV	Oct 16	MPLAN	10,225	$0.00	—?
Sionna Therapeutics, Inc.	SION	Michael CloonanCEODERIV	Oct 15	MPLAN	14,775	$0.00	—?
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Oct 16	SPLAN	200	$34.00	$7K
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Oct 16	MPLAN	200	$6.11	$1K
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Oct 16	SPLAN	10,225	$31.46	$322K
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Oct 16	MPLAN	10,225	$6.11	$62K
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Oct 15	SPLAN	14,775	$31.11	$460K
Sionna Therapeutics, Inc.	SION	Michael CloonanCEO	Oct 15	MPLAN	14,775	$6.11	$90K