Director Share Dealings - Sionna Therapeutics Inc (SION)

Director deals

Listed below are trades carried out by directors and other individuals which are required to be notified to the market.

≈ Figures for the value of trade may not add up due to rounding.

Recent deals

Date	Name and position (if held)	Deal type	Number of shares dealt	Price per share	Value of trade ≈	Shares remaining
17 September 2026	RA CAPITAL MANAGEMENT LPInvestment Management Company	Sell Regular sell transaction (market)	3,415,011	$6.32	$21,582,869.52	3,482,612
17 September 2026	RA CAPITAL MANAGEMENT LPInvestment Management Company	Sell Regular sell transaction (market)	33,800	$7.46	$252,148.00	3,448,812
7 July 2026	ORBIMED ADVISORS LLCInvestment Management Company	Sell Regular sell transaction (market)	85,918	$44.86	$3,854,281.48	2,469,959
6 July 2026	Jennifer (Jen) FitzpatrickChief Legal/Compliance Officer	Sell Option/Award related	10,250	$43.60	$446,862.08	0
30 June 2026	ORBIMED ADVISORS LLCInvestment Management Company	Sell Regular sell transaction (market)	115,844	$45.50	$5,270,902.00	2,555,877
27 May 2026	ORBIMED ADVISORS LLCInvestment Management Company	Sell Regular sell transaction (market)	101	$44.49	$4,493.49	2,671,721
11 May 2026	ORBIMED ADVISORS LLCInvestment Management Company	Sell Regular sell transaction (market)	184,639	$46.22	$8,534,014.58	2,671,822
8 May 2026	ORBIMED ADVISORS LLCInvestment Management Company	Sell Regular sell transaction (market)	59,767	$44.58	$2,664,412.86	2,856,461
7 May 2026	ORBIMED ADVISORS LLCInvestment Management Company	Sell Regular sell transaction (market)	48,546	$44.61	$2,165,637.06	2,916,228
18 April 2026	ORBIMED ADVISORS LLCInvestment Management Company	Sell Regular sell transaction (market)	2,948	$44.52	$131,244.96	2,964,774

5 most significant deals

Date	Name and position (if held)	Deal type	Number of shares dealt	Price per share	Value of trade ≈	Shares remaining
17 September 2026	RA CAPITAL MANAGEMENT LPInvestment Management Company	Sell Regular sell transaction (market)	3,415,011	$6.32	$21,582,869.52	3,482,612
15 April 2026	ORBIMED ADVISORS LLCInvestment Management Company	Sell Regular sell transaction (market)	235,863	$44.64	$10,528,924.32	3,247,025
16 April 2026	ORBIMED ADVISORS LLCInvestment Management Company	Sell Regular sell transaction (market)	226,906	$45.34	$10,287,918.04	3,020,119
22 January 2026	TPG GP A LLCInvestment Company	Sell Regular sell transaction (market)	250,000	$40.00	$10,000,000.00	6,494,962
11 May 2026	ORBIMED ADVISORS LLCInvestment Management Company	Sell Regular sell transaction (market)	184,639	$46.22	$8,534,014.58	2,671,822

Data policy - All information should be used for indicative purposes only. You should independently check data before making any investment decision. HL cannot guarantee that the data is accurate or complete, and accepts no responsibility for how it may be used. Director deal information provided by Factset.