GOSS · smart money activity

Who's buying Gossamer Bio, Inc.?

Gossamer Bio, Inc. has 1 recent smart-money filing on record (13D), the latest on Oct 29, 2026.

Smart money score Score and rank in Pro

Latest filingOct 29, 2026

Independent buyers1

Signal sources13D

Insiders' avg buy price Pro

GOSS insider buying, 13F and 13D filings

Filed Oct 29, 202613D stake (no activist plan)

D. E. Shaw Valence Portfolios, L.L.C. (with 3 co-filers): Amended Schedule 13D: 4.2% stake

View the filing on SEC EDGAR ↗

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Signals come from SEC filings: Form 4 (insiders, filed within 2 business days), 13F (fund holdings, up to 45 days after quarter end) and Schedule 13D (5%+ activist stakes). This page reports what the filings show; it is not investment advice.