Arkolith/Insider Trading/SION/Form 4

Thompson Peter A.

DirectorSionna Therapeutics, Inc. (SION) · full profile →Form 4 · filed Apr 21, 2026
Net Selling
Open-Market Buys
$0
Open-Market Sells
$2.5M
Net Open-Market Flow
-$2.5M
Transactions
2
2 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Apr 18, 2026Sell(S)3K$44.52$131K3.0M
Apr 17, 2026Sell(S)52K$44.68$2.3M3.0M

Transaction Codes

S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000947871-26-000459) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML