GOSS catalyst calendar

Gossamer Bio, Inc.

Upcoming catalysts
2
Cash runway
4.4 months
Cash & investments
$57M
Phase 3 programs
1

Gossamer Bio, Inc. is tracked here for clinical trial milestones, SEC filings and earnings dates. Focus area: Pharmaceutical Preparations.

The next scheduled catalyst is Next quarterly earnings (projected) on October 22, 2026, a projected date rather than a confirmed one. There are 2 upcoming events on record.

Cash runway is approximately 4.4 months based on the most recent reported cash position and quarterly operating burn as of 2026-06-30.

Upcoming catalysts

DateEventTypePhase
October 22, 2026 est. Next quarterly earnings (projected) Earnings —
December 15, 2026 Open-label Extension Study of Seralutinib in Adult Subjects With PAH (PROSERA-EXT) Trial Milestone Phase 3

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Recent history

DateEventTypePhase
September 28, 2026 8-K filed: Other event Filing —
September 23, 2026 8-K filed: Other event Filing —
September 16, 2026 8-K filed: Leadership change Corporate —
September 11, 2026 8-K filed: Other event Filing —
September 9, 2026 8-K filed: Other event Filing —
September 9, 2026 Open-label Extension Study of GB002 in Adult Subjects With Pulmonary Arterial Hypertension (PAH) Trial Milestone Phase 2
August 21, 2026 8-K filed: Material agreement, Reg FD disclosure Corporate —
August 13, 2026 Quarterly results filed (8-K) Earnings —
July 27, 2026 Quarterly results filed (8-K) Earnings —
July 15, 2026 8-K filed: Leadership change Corporate —
July 1, 2026 8-K filed: Reg FD disclosure Filing —
June 17, 2026 8-K filed: Reg FD disclosure Filing —
June 5, 2026 8-K filed: Material agreement, Reg FD disclosure Corporate —
June 2, 2026 8-K filed: Other event Filing —
May 18, 2026 Quarterly results filed (8-K) Earnings —
April 9, 2026 8-K filed: Listing / standard notice Corporate —
March 17, 2026 Quarterly results filed (8-K) Earnings —
February 23, 2026 8-K filed: Other event Filing —
November 5, 2025 Quarterly results filed (8-K) Earnings —
August 5, 2025 Quarterly results filed (8-K) Earnings —
June 25, 2025 8-K filed: Leadership change Corporate —
June 16, 2025 8-K filed: Reg FD disclosure, Other event Filing —
May 15, 2025 Quarterly results filed (8-K) Earnings —

About this data

Trial milestones come from the ClinicalTrials.gov v2 API, filings from SEC EDGAR, and financial figures from SEC XBRL company facts. Dates marked est. are projected rather than company-confirmed. This is an information tool, not investment advice — verify anything you act on against the linked primary source.

Last updated 2026-10-14.