Protagonist Therapeutics, Inc. (PTGX)
NASDAQ: PTGX · Real-Time Price · USD
84.61
+1.37 (1.65%)
At close: Nov 14, 2025, 4:00 PM EST
83.89
-0.72 (-0.85%)
After-hours: Nov 14, 2025, 7:54 PM EST
Protagonist Therapeutics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Nov 14, 2025 | 82.18 | 85.90 | 82.06 | 84.61 | 84.61 | 1.65% | 665,712 |
| 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% | 621,958 |
| 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 |
| Sep 25, 2025 | 65.42 | 66.38 | 64.34 | 64.70 | 64.70 | -1.90% | 806,352 |
| Sep 24, 2025 | 65.00 | 66.70 | 63.83 | 65.95 | 65.95 | 1.37% | 857,043 |
| Sep 23, 2025 | 64.00 | 65.08 | 63.74 | 65.06 | 65.06 | 0.85% | 568,747 |
| Sep 22, 2025 | 62.35 | 64.59 | 61.95 | 64.51 | 64.51 | 3.71% | 702,623 |
| Sep 19, 2025 | 62.22 | 63.30 | 61.64 | 62.20 | 62.20 | 0.10% | 2,461,715 |
| Sep 18, 2025 | 59.55 | 62.21 | 58.91 | 62.14 | 62.14 | 4.93% | 1,358,129 |
| Sep 17, 2025 | 60.05 | 61.34 | 59.02 | 59.22 | 59.22 | 1.08% | 912,792 |
| Sep 16, 2025 | 58.16 | 59.14 | 57.90 | 58.59 | 58.59 | 0.36% | 633,958 |
| Sep 15, 2025 | 58.86 | 59.64 | 57.91 | 58.38 | 58.38 | -0.82% | 929,176 |
| Sep 12, 2025 | 60.40 | 60.40 | 58.75 | 58.86 | 58.86 | -1.37% | 685,843 |
| Sep 11, 2025 | 57.81 | 59.71 | 57.53 | 59.68 | 59.68 | 3.36% | 939,398 |
| Sep 10, 2025 | 58.47 | 58.47 | 57.13 | 57.74 | 57.74 | -1.06% | 843,342 |
| Sep 9, 2025 | 56.50 | 59.31 | 54.50 | 58.36 | 58.36 | 3.86% | 1,483,258 |
| Sep 8, 2025 | 59.50 | 59.50 | 54.60 | 56.19 | 56.19 | -7.17% | 1,643,272 |