Latest filing published 18 Sept 2026 for Sionna Therapeutics, Inc..
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
This profile gathers the share dealings of Elena Ridloff across 4 companies, led by Acadia Pharmaceuticals Inc, Kymera Therapeutics, Inc. and Sionna Therapeutics, Inc. Between 9 December 2019 and 17 September 2026, the trades on record add up to 37 filings.
Market trades split into 1 purchase (€43k) and 21 sales (€5.5M). Netting one side against the other leaves €5.5M of net selling. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. Besides market trades, the filings include 5 share grants and 9 option exercises. In 2026 alone, the filings show no purchases and 3 sales.
The record was last updated on 18 September 2026 with a share grant in Sionna Therapeutics, Inc. The latest purchase dates back some time: it was published 2,198 days ago, on 16 October 2020. Typically, a trade is published a median of 2 days after it takes place. For comparison, the SEC allows two business days to file a Form 4. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.
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