GOSSAMER BIO INC (GOSS) Institutional Ownership and Insiders Activity

GOSSAMER BIO INC (GOSS) is widely held by institutional investors, with 2 tracked firms reporting positions valued at approximately $403,684 based on SEC Form 13F filings for the quarter ended June 30, 2026.

Renaissance Technologies LLC is the largest disclosed holder, reporting approximately $400,070 in GOSS holdings in its latest filing.

Institutional ownership among tracked investors remains highly concentrated, with Renaissance Technologies LLC representing the majority of disclosed value.