Gossamer Bio Inc. (GOSS)
Showing Closing Date Range from Apr 24 to Oct 21, 2026 compared to Oct 25, 2025 to Apr 23, 2026.
Compare Last 6 Months with Previous Period
Investor Relations:gossamerbio.com
Current Period Close
$9.58
Apr 24, 2026 - Oct 21, 2026
Previous Period Close
$29.92
Oct 25, 2025 - Apr 23, 2026
Net Comparison Delta
$-20.34 (-67.98%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(120 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 20, 2026 | $9.58 | Apr 20, 2026 | $33.60 | -71.49% |
| Oct 19, 2026 | $8.43 | Apr 17, 2026 | $35.68 | -76.37% |
| Oct 16, 2026 | $8.77 | Apr 16, 2026 | $34.96 | -74.91% |
| Oct 15, 2026 | $8.89 | Apr 15, 2026 | $36.08 | -75.36% |
| Oct 14, 2026 | $8.91 | Apr 14, 2026 | $34.56 | -74.23% |
| Oct 13, 2026 | $9.76 | Apr 13, 2026 | $32.08 | -69.58% |
| Oct 12, 2026 | $9.28 | Apr 10, 2026 | $32.80 | -71.71% |
| Oct 09, 2026 | $9.31 | Apr 09, 2026 | $29.76 | -68.72% |
| Oct 08, 2026 | $9.88 | Apr 08, 2026 | $27.76 | -64.41% |
| Oct 07, 2026 | $10.18 | Apr 07, 2026 | $26.40 | -61.44% |
| Oct 06, 2026 | $10.78 | Apr 06, 2026 | $27.68 | -61.05% |
| Oct 05, 2026 | $10.65 | Apr 02, 2026 | $29.60 | -64.02% |
| Oct 02, 2026 | $10.71 | Apr 01, 2026 | $29.20 | -63.32% |
| Sep 25, 2026 | $10.94 | Mar 31, 2026 | $26.32 | -58.43% |
| Sep 24, 2026 | $10.93 | Mar 30, 2026 | $25.60 | -57.30% |
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