Gossamer Bio, Inc. (GOSS)
NASDAQ: GOSS · Real-Time Price · USD
11.69
+0.41 (3.63%)
At close: Sep 22, 2026, 4:00 PM EDT
11.71
+0.02 (0.17%)
After-hours: Sep 22, 2026, 7:48 PM EDT
Gossamer Bio Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 22, 2026 | 11.48 | 12.31 | 11.35 | 11.69 | 11.69 | 3.63% | 195,411 |
| Sep 21, 2026 | 11.60 | 11.94 | 10.91 | 11.28 | 11.28 | 5.13% | 255,828 |
| Sep 18, 2026 | 12.00 | 12.49 | 10.67 | 10.73 | 10.73 | -10.13% | 530,127 |
| Sep 17, 2026 | 11.78 | 12.45 | 11.28 | 11.94 | 11.94 | 8.94% | 267,675 |
| Sep 16, 2026 | 10.77 | 11.24 | 9.96 | 10.96 | 10.96 | 5.59% | 272,289 |
| Sep 15, 2026 | 10.61 | 10.97 | 10.12 | 10.38 | 10.38 | -2.99% | 220,498 |
| Sep 14, 2026 | 10.95 | 11.08 | 10.07 | 10.70 | 10.70 | -0.28% | 325,909 |
| Sep 11, 2026 | 12.48 | 12.52 | 10.47 | 10.73 | 10.73 | -5.81% | 474,154 |
| Sep 10, 2026 | 12.22 | 12.54 | 11.22 | 11.39 | 11.39 | -10.83% | 165,331 |
| Sep 9, 2026 | 12.00 | 13.78 | 11.99 | 12.78 | 12.78 | -11.23% | 296,180 |
| Sep 8, 2026 | 13.72 | 14.75 | 13.46 | 14.39 | 14.39 | 2.62% | 86,487 |
| Sep 4, 2026 | 13.72 | 14.45 | 13.44 | 14.02 | 14.02 | -0.17% | 101,166 |
| Sep 3, 2026 | 13.84 | 14.08 | 13.08 | 14.05 | 14.05 | 1.68% | 71,621 |
| Sep 2, 2026 | 13.25 | 13.86 | 12.91 | 13.82 | 13.82 | 3.17% | 71,975 |
| Sep 1, 2026 | 13.22 | 13.83 | 12.80 | 13.39 | 13.39 | -1.53% | 91,542 |
| Aug 31, 2026 | 13.68 | 14.41 | 13.44 | 13.60 | 13.60 | -0.06% | 126,859 |
| Aug 28, 2026 | 13.76 | 13.86 | 13.12 | 13.61 | 13.61 | - | 99,011 |
| Aug 27, 2026 | 14.09 | 14.23 | 13.04 | 13.61 | 13.61 | -2.19% | 193,062 |
| Aug 26, 2026 | 15.93 | 16.15 | 13.60 | 13.91 | 13.91 | -14.96% | 364,399 |
| Aug 25, 2026 | 14.37 | 17.10 | 13.45 | 16.36 | 16.36 | 16.86% | 594,440 |
| Aug 24, 2026 | 12.00 | 14.98 | 11.66 | 14.00 | 14.00 | 13.12% | 588,872 |
| Aug 21, 2026 | 13.56 | 13.56 | 11.60 | 12.38 | 12.38 | -1.78% | 1,641,943 |
| Aug 20, 2026 | 12.65 | 13.11 | 12.04 | 12.60 | 12.60 | 0.57% | 84,129 |
| Aug 19, 2026 | 11.98 | 12.68 | 11.36 | 12.53 | 12.53 | 9.43% | 86,419 |
| Aug 18, 2026 | 11.20 | 11.83 | 11.06 | 11.45 | 11.45 | 2.21% | 84,859 |
| Aug 17, 2026 | 12.36 | 12.45 | 11.20 | 11.20 | 11.20 | -9.21% | 300,700 |
| Aug 14, 2026 | 13.60 | 13.61 | 12.24 | 12.34 | 12.34 | -9.45% | 173,228 |
| Aug 13, 2026 | 14.07 | 14.18 | 13.23 | 13.62 | 13.62 | -4.11% | 156,226 |
| Aug 12, 2026 | 14.66 | 14.85 | 13.84 | 14.21 | 14.21 | -2.31% | 66,668 |
| Aug 11, 2026 | 14.40 | 14.88 | 13.93 | 14.54 | 14.54 | 3.24% | 132,605 |
| Aug 10, 2026 | 14.40 | 14.41 | 13.52 | 14.09 | 14.09 | -1.07% | 214,547 |
| Aug 7, 2026 | 14.40 | 14.53 | 13.83 | 14.24 | 14.24 | -0.22% | 136,758 |
| Aug 6, 2026 | 14.17 | 14.56 | 13.76 | 14.27 | 14.27 | 0.39% | 102,883 |
| Aug 5, 2026 | 14.94 | 14.96 | 14.00 | 14.22 | 14.22 | -2.09% | 100,070 |
| Aug 4, 2026 | 13.60 | 14.72 | 13.60 | 14.52 | 14.52 | 4.55% | 184,504 |
| Aug 3, 2026 | 13.57 | 14.13 | 12.80 | 13.89 | 13.89 | 2.42% | 221,314 |
| Jul 31, 2026 | 14.16 | 14.63 | 13.22 | 13.56 | 13.56 | -4.94% | 320,204 |
| Jul 30, 2026 | 16.34 | 16.41 | 13.42 | 14.26 | 14.26 | -13.74% | 383,032 |
| Jul 29, 2026 | 16.46 | 16.95 | 14.56 | 16.54 | 16.54 | 0.78% | 378,287 |
| Jul 28, 2026 | 21.45 | 21.46 | 15.20 | 16.41 | 16.41 | 2.86% | 2,640,286 |
| Jul 27, 2026 | 13.88 | 17.14 | 11.60 | 15.95 | 15.95 | 46.62% | 4,463,903 |
| Jul 24, 2026 | 11.59 | 11.60 | 10.57 | 10.88 | 10.88 | -4.56% | 136,572 |
| Jul 23, 2026 | 11.40 | 11.43 | 10.88 | 11.40 | 11.40 | -1.45% | 175,051 |
| Jul 22, 2026 | 11.38 | 12.40 | 10.94 | 11.57 | 11.57 | -6.59% | 205,963 |
| Jul 21, 2026 | 11.48 | 12.40 | 11.34 | 12.38 | 12.38 | 9.79% | 189,081 |
| Jul 20, 2026 | 13.60 | 13.60 | 11.10 | 11.28 | 11.28 | -17.11% | 493,566 |
| Jul 17, 2026 | 13.27 | 14.15 | 12.82 | 13.61 | 13.61 | -0.23% | 144,549 |
| Jul 16, 2026 | 12.80 | 13.70 | 11.42 | 13.64 | 13.64 | 5.44% | 177,780 |
| Jul 15, 2026 | 10.62 | 13.64 | 10.18 | 12.94 | 12.94 | 15.42% | 307,855 |
| Jul 14, 2026 | 11.52 | 11.52 | 9.10 | 11.21 | 11.21 | -2.78% | 523,021 |