---
schema_version: "secwatch.filing_event.v1"
accession: "0001728117-26-000106"
form_type: "8-K"
ticker: "GOSS"
cik: "0001728117"
company_name: "Gossamer Bio, Inc."
filed_at: "2026-09-28T20:01:31+00:00"
generated_at: "2026-10-12T13:34:38.969624+00:00"
event_type: "regulatory"
sentiment: "positive"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Gossamer Bio regains Nasdaq minimum bid price compliance after 1-for-80 reverse split

## Summary
- Gossamer Bio received a Sept. 25, 2026 Nasdaq letter stating it regained compliance with Nasdaq Listing Rule 5450(a)(1) minimum bid price requirement.
- Nasdaq's April 8, 2026 letter had flagged noncompliance because GOSS common stock traded below $1.00 for 30 consecutive business days.
- Gossamer effected a 1-for-80 reverse stock split on Sept. 10, 2026, and GOSS began trading split-adjusted on Nasdaq on Sept. 11, 2026.
- The Nasdaq minimum bid price matter is now closed, according to the Sept. 25, 2026 letter.

## SEC filing metadata
- accession: 0001728117-26-000106
- form_type: 8-K
- ticker: GOSS
- cik: 0001728117
- company_name: Gossamer Bio, Inc.
- filed_at: 2026-09-28T20:01:31+00:00
- event_type: regulatory
- sentiment: positive
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1728117/000172811726000106/0001728117-26-000106-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1728117/000172811726000106/goss-20260925.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001728117-26-000106
- JSON: https://secwatch.observer/filing/0001728117-26-000106.json
- Plain text: https://secwatch.observer/filing/0001728117-26-000106.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.