Protagonist Therapeutics, Inc. (PTGX)
NASDAQ: PTGX · Real-Time Price · USD
89.65
+2.32 (2.66%)
At close: Dec 5, 2025, 4:00 PM EST
89.00
-0.65 (-0.73%)
After-hours: Dec 5, 2025, 6:37 PM EST
Protagonist Therapeutics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Dec 5, 2025 | 87.96 | 90.18 | 87.54 | 89.65 | 89.65 | 2.66% | 1,391,898 |
| Dec 4, 2025 | 86.07 | 88.10 | 85.13 | 87.33 | 87.33 | 1.46% | 733,354 |
| Dec 3, 2025 | 85.43 | 87.10 | 84.73 | 86.07 | 86.07 | 1.68% | 715,196 |
| Dec 2, 2025 | 85.75 | 86.39 | 83.52 | 84.65 | 84.65 | -1.16% | 915,459 |
| Dec 1, 2025 | 89.61 | 89.85 | 85.00 | 85.64 | 85.64 | -4.84% | 999,793 |
| Nov 28, 2025 | 90.00 | 90.46 | 88.78 | 90.00 | 90.00 | -0.08% | 256,025 |
| Nov 26, 2025 | 90.00 | 90.85 | 89.50 | 90.07 | 90.07 | 0.23% | 1,205,222 |
| Nov 25, 2025 | 88.46 | 89.88 | 87.76 | 89.86 | 89.86 | 2.47% | 828,941 |
| Nov 24, 2025 | 86.59 | 88.34 | 85.71 | 87.69 | 87.69 | 2.68% | 843,857 |
| Nov 21, 2025 | 84.24 | 86.67 | 83.64 | 85.40 | 85.40 | 1.43% | 907,139 |
| Nov 20, 2025 | 86.36 | 86.95 | 84.00 | 84.20 | 84.20 | -1.09% | 789,596 |
| Nov 19, 2025 | 84.54 | 86.65 | 84.45 | 85.13 | 85.13 | 0.88% | 989,454 |
| Nov 18, 2025 | 84.77 | 86.36 | 83.79 | 84.39 | 84.39 | -0.45% | 778,785 |
| Nov 17, 2025 | 82.79 | 85.45 | 82.79 | 84.77 | 84.77 | 0.19% | 794,796 |
| Nov 14, 2025 | 82.18 | 85.90 | 82.06 | 84.61 | 84.61 | 1.65% | 755,426 |
| Nov 13, 2025 | 84.84 | 86.02 | 83.17 | 83.24 | 83.24 | -1.90% | 711,767 |
| Nov 12, 2025 | 85.41 | 86.90 | 84.50 | 84.85 | 84.85 | -0.83% | 1,361,095 |
| Nov 11, 2025 | 83.52 | 86.00 | 83.00 | 85.56 | 85.56 | 2.80% | 952,798 |
| Nov 10, 2025 | 80.58 | 84.84 | 79.56 | 83.23 | 83.23 | 4.64% | 1,161,463 |
| Nov 7, 2025 | 80.12 | 80.75 | 76.70 | 79.54 | 79.54 | -0.30% | 882,432 |
| Nov 6, 2025 | 77.07 | 79.92 | 77.00 | 79.78 | 79.78 | 2.44% | 1,139,569 |
| Nov 5, 2025 | 76.50 | 78.12 | 75.55 | 77.88 | 77.88 | 1.80% | 622,953 |
| Nov 4, 2025 | 75.44 | 78.01 | 75.44 | 76.50 | 76.50 | 0.72% | 1,029,019 |
| Nov 3, 2025 | 78.62 | 80.43 | 75.54 | 75.95 | 75.95 | -3.40% | 1,041,567 |
| Oct 31, 2025 | 77.53 | 79.01 | 76.66 | 78.62 | 78.62 | 0.99% | 725,894 |
| Oct 30, 2025 | 77.21 | 78.74 | 76.75 | 77.85 | 77.85 | 1.51% | 839,379 |
| Oct 29, 2025 | 78.06 | 79.00 | 76.49 | 76.69 | 76.69 | -2.32% | 921,216 |
| Oct 28, 2025 | 75.06 | 78.78 | 74.80 | 78.51 | 78.51 | 4.33% | 1,246,081 |
| Oct 27, 2025 | 75.13 | 76.08 | 74.03 | 75.25 | 75.25 | 0.52% | 938,412 |
| Oct 24, 2025 | 74.13 | 75.53 | 73.84 | 74.86 | 74.86 | 1.18% | 690,708 |
| Oct 23, 2025 | 73.37 | 74.91 | 73.08 | 73.99 | 73.99 | 0.66% | 722,648 |
| Oct 22, 2025 | 74.51 | 74.95 | 73.29 | 73.50 | 73.50 | -2.00% | 885,758 |
| Oct 21, 2025 | 76.51 | 77.22 | 74.78 | 75.00 | 75.00 | -2.24% | 929,935 |
| Oct 20, 2025 | 77.51 | 77.66 | 75.51 | 76.72 | 76.72 | -1.01% | 780,658 |
| Oct 17, 2025 | 75.60 | 77.58 | 75.17 | 77.50 | 77.50 | 2.34% | 1,240,919 |
| Oct 16, 2025 | 77.81 | 78.00 | 74.62 | 75.73 | 75.73 | -2.51% | 1,931,728 |
| Oct 15, 2025 | 75.29 | 78.15 | 75.29 | 77.68 | 77.68 | 0.96% | 1,149,583 |
| Oct 14, 2025 | 78.49 | 78.49 | 76.00 | 76.94 | 76.94 | -2.82% | 1,885,924 |
| Oct 13, 2025 | 85.28 | 86.76 | 75.04 | 79.17 | 79.17 | -9.00% | 5,941,417 |
| Oct 10, 2025 | 67.39 | 93.25 | 65.75 | 87.00 | 87.00 | 29.77% | 7,065,291 |
| Oct 9, 2025 | 65.56 | 67.57 | 65.56 | 67.04 | 67.04 | 2.66% | 1,058,925 |
| Oct 8, 2025 | 65.28 | 65.77 | 64.50 | 65.30 | 65.30 | -0.26% | 587,495 |
| Oct 7, 2025 | 64.26 | 65.84 | 62.24 | 65.47 | 65.47 | 2.07% | 804,435 |
| Oct 6, 2025 | 65.02 | 66.87 | 63.93 | 64.14 | 64.14 | -1.06% | 886,157 |
| Oct 3, 2025 | 64.59 | 65.38 | 64.56 | 64.83 | 64.83 | -0.23% | 623,633 |
| Oct 2, 2025 | 64.39 | 65.50 | 63.71 | 64.98 | 64.98 | 1.53% | 575,458 |
| Oct 1, 2025 | 66.00 | 66.53 | 63.71 | 64.00 | 64.00 | -3.66% | 1,048,532 |
| Sep 30, 2025 | 65.14 | 67.04 | 65.06 | 66.43 | 66.43 | 1.98% | 1,446,153 |
| Sep 29, 2025 | 67.42 | 68.17 | 63.82 | 65.14 | 65.14 | -3.38% | 2,017,894 |
| Sep 26, 2025 | 65.40 | 68.26 | 64.02 | 67.42 | 67.42 | 4.20% | 1,424,228 |