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GOSS stock news · Gossamer Bio

Stories about Gossamer Bio (GOSS) from the last 90 days, each explained in plain English with whether the news reads good or bad for the company.

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  1. Sep 25, 2026, 5:22 PM ET · Market

    12 health care companies saw big changes in their stock prices after the market closed on Friday.

    Neutral

    Gossamer Bio shares fell about 5% to $10.36 after hours. The report gives no new business news, so its business outlook remains unchanged.

  2. Sep 25, 2026, 5:19 PM ET · Market

    12 health care companies saw big changes in their stock prices after the market closed on Friday.

    Neutral

    The report says Gossamer Bio shares fell 5.3%, but gives no business update to explain the move. It does not change the company's business outlook.

  3. Sep 18, 2026, 5:13 PM ET · Market

    On Friday evening, 12 health care stocks saw big changes in their prices.

    Neutral

    Gossamer Bio stock increased 6.33% to $11.41 after-market. The report contains no operational or financial news, so it does not change Gossamer's prospects.

  4. Aug 21, 2026, 11:56 AM ET · Trial

    Gossamer Bio's stock drops as $250 million funding relies on FDA achievement benchmarks.

    Bad for GOSS

    Gossamer Bio's shares declined as investors reacted to a $250 million financing deal that is heavily dependent on FDA milestones for its drug seralutinib. The financing structure raises concerns about dilution and the company's reliance on regulatory approval, impacting investor sentiment negatively.

  5. Aug 21, 2026, 8:41 AM ET · Market

    Gossamer Bio, Inc. finalizes a significant definitive agreement (GOSS).

    Good for GOSS

    Gossamer Bio's filing of a Form 8-K regarding a material definitive agreement suggests a pivotal development that could enhance its business strategy and investor confidence, warranting immediate attention from the market.