Gossamer Bio Regains Nasdaq Minimum Bid Price Compliance

What Happened
Gossamer Bio, Inc. (GOSS) filed an 8‑K (dated September 28, 2026) reporting that on September 25, 2026 it received a letter from Nasdaq stating the company has regained compliance with the minimum $1.00 bid price requirement under Nasdaq Listing Rule 5450(a)(1). Nasdaq’s notice closes a compliance matter that began with a prior non‑compliance letter dated April 8, 2026. The company effected a 1‑for‑80 reverse stock split of its common stock effective September 10, 2026, and the stock began trading on a split‑adjusted basis on September 11, 2026.

Key Details

• Nasdaq confirmed compliance and closed the minimum bid price matter on September 25, 2026.
• Previously notified of non‑compliance by Nasdaq on April 8, 2026 (failure to maintain a $1.00 minimum bid for 30 consecutive business days).
• Company implemented a 1‑for‑80 reverse stock split effective September 10, 2026; split‑adjusted trading began September 11, 2026.
• Form 8‑K was filed September 28, 2026 and signed by Christian Waage, Executive VP & General Counsel.

Why It Matters
Regaining compliance means Gossamer Bio remains listed on the Nasdaq Global Select Market and is not subject to delisting procedures tied to the minimum bid price rule. For investors, the reverse split reduced the share count and raised the per‑share price on a split‑adjusted basis (a technical step to meet listing standards), and the Nasdaq letter removes a regulatory overhang related to the earlier non‑compliance.