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Institutional filer profile

RA Capital Nexus Fund III L.P. Insider Trades

Latest reported as Corporate insider of Sionna Therapeutics, Inc. (SION).

Purchase filings
11
Reported companies
4
Net open-market value
$438,027,101
Latest transaction
Sep 17, 2026

Affiliated corporations

Reported company relationships

SIONLatest reported

Sionna Therapeutics, Inc.

Corporate insider

SEPNPrior filing

Septerna, Inc.

Corporate insider

ARTVPrior filing

Artiva Biotherapeutics, Inc.

Corporate insider

PBLSPrior filing

Parabilis Medicines, Inc.

Corporate insider

Transaction history

Open-market Transactions

Open-market insider purchase and sale transactions
DateCompanyRoleTypeSharesPriceTotal value
Sep 17, 2026Sionna Therapeutics, Inc. (SION)Corporate insiderSale3,448,811$6.33$21,835,112
Aug 12, 2026Septerna, Inc. (SEPN)Corporate insiderSale1,493,000$42.50$63,452,500
Jul 31, 2026Artiva Biotherapeutics, Inc. (ARTV)Corporate insiderOpen Market Purchase45,768$9.96$455,726
Jul 24, 2026Artiva Biotherapeutics, Inc. (ARTV)Corporate insiderOpen Market Purchase41,319$9.99$412,777
Jul 23, 2026Artiva Biotherapeutics, Inc. (ARTV)Corporate insiderOpen Market Purchase264,586$9.76$2,583,312
Jul 22, 2026Parabilis Medicines, Inc. (PBLS)Corporate insiderOpen Market Purchase244,593$28.29$6,919,560
Jul 17, 2026Artiva Biotherapeutics, Inc. (ARTV)Corporate insiderOpen Market Purchase160,354$8.93$1,432,122
Jul 13, 2026Artiva Biotherapeutics, Inc. (ARTV)Corporate insiderOpen Market Purchase21,654$8.96$194,039
Jun 26, 2026Artiva Biotherapeutics, Inc. (ARTV)Corporate insiderOpen Market Purchase32,876$8.89$292,126
Jun 16, 2026Artiva Biotherapeutics, Inc. (ARTV)Corporate insiderOpen Market Purchase531,326$8.66$4,599,902
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