Ra Capital Nexus Fund, L.P. Insider Trades

Entity

Director at Sionna Therapeutics, Inc. and 1 other company. 6 significant open-market trades reported on SEC Form 4 in the last 180 days.

On EDGAR, this filer has 85 Form 4 filings on record since 2020, the latest on Sep 30, 2026. Full history on sec.gov

$5.1M

Bought

$21.8M

Sold

5 / 1

Buys / Sells

2

Companies

Companies

  • SIONDirector

    Sionna Therapeutics, Inc.

    1 sell, $21.8M

  • ARTVDirector

    Artiva Biotherapeutics, Inc.

    5 buys, $5.1M

Reported Trades

Open-market transactions only (code P and S), outside any 10b5-1 plan, dated by the day the filing reached EDGAR. Each row links to the filing.

FiledCompanyTradeValue
Sep 21, 2026SIONDirectorsell50% of stake$21.8M
Jul 31, 2026ARTVDirectorbuy$456K
Jul 28, 2026ARTVDirectorbuy$413K
Jul 23, 2026ARTVDirectorbuy$2.6M
Jul 20, 2026ARTVDirectorbuy$1.4M
Jul 14, 2026ARTVDirectorbuy$194K

Other Insiders at These Companies

Everyone else who reported a significant open-market trade at the same companies in the last 180 days. Several insiders buying at once is cluster buying.

How to Read This Page

These are the trades an insider chose to make with their own money, not grants, option exercises or tax withholding. A purchase is the stronger signal (why buys carry more information than sales), and an insider who buys is locked out of selling for six months by the short-swing rule. The window here is 180 days; the full filing history lives on EDGAR.

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