Protagenic Therapeutics, Inc. (PTIX)
NASDAQ: PTIX · Real-Time Price · USD
1.670
-0.010 (-0.60%)
At close: Dec 5, 2025, 4:00 PM EST
1.651
-0.019 (-1.15%)
After-hours: Dec 5, 2025, 6:19 PM EST
Protagenic Therapeutics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Dec 5, 2025 | 1.71 | 1.80 | 1.60 | 1.67 | 1.67 | -0.60% | 67,790 |
| Dec 4, 2025 | 1.84 | 1.84 | 1.64 | 1.68 | 1.68 | -6.93% | 125,813 |
| Dec 3, 2025 | 1.82 | 1.89 | 1.73 | 1.81 | 1.81 | -4.50% | 49,049 |
| Dec 2, 2025 | 1.90 | 1.97 | 1.86 | 1.89 | 1.89 | -3.08% | 84,427 |
| Dec 1, 2025 | 2.00 | 2.04 | 1.84 | 1.95 | 1.95 | -8.45% | 151,540 |
| Nov 28, 2025 | 1.91 | 2.13 | 1.91 | 2.13 | 2.13 | -4.48% | 128,740 |
| Nov 26, 2025 | 2.27 | 2.38 | 2.23 | 2.23 | 2.23 | - | 66,809 |
| Nov 25, 2025 | 2.35 | 2.35 | 2.18 | 2.23 | 2.23 | -1.76% | 89,505 |
| Nov 24, 2025 | 2.12 | 2.35 | 2.10 | 2.27 | 2.27 | 9.66% | 112,112 |
| Nov 21, 2025 | 1.99 | 2.15 | 1.97 | 2.07 | 2.07 | 2.48% | 56,058 |
| Nov 20, 2025 | 2.11 | 2.20 | 1.96 | 2.02 | 2.02 | - | 48,637 |
| Nov 19, 2025 | 2.19 | 2.25 | 1.95 | 2.02 | 2.02 | -8.18% | 69,164 |
| Nov 18, 2025 | 2.03 | 2.24 | 1.99 | 2.20 | 2.20 | 6.28% | 26,547 |
| Nov 17, 2025 | 2.08 | 2.10 | 2.02 | 2.07 | 2.07 | 1.97% | 36,682 |
| Nov 14, 2025 | 2.09 | 2.10 | 2.01 | 2.03 | 2.03 | -3.33% | 23,811 |
| Nov 13, 2025 | 1.96 | 2.11 | 1.96 | 2.10 | 2.10 | 9.38% | 223,038 |
| Nov 12, 2025 | 2.00 | 2.06 | 1.90 | 1.92 | 1.92 | -4.48% | 26,151 |
| Nov 11, 2025 | 1.87 | 2.05 | 1.84 | 2.01 | 2.01 | 6.35% | 46,956 |
| Nov 10, 2025 | 1.93 | 2.02 | 1.83 | 1.89 | 1.89 | -8.25% | 86,957 |
| Nov 7, 2025 | 2.02 | 2.10 | 2.02 | 2.06 | 2.06 | 0.49% | 44,011 |
| Nov 6, 2025 | 2.11 | 2.22 | 1.88 | 2.05 | 2.05 | -4.21% | 90,328 |
| Nov 5, 2025 | 2.15 | 2.19 | 2.09 | 2.14 | 2.14 | -0.47% | 29,274 |
| Nov 4, 2025 | 2.22 | 2.29 | 2.14 | 2.15 | 2.15 | -4.44% | 32,911 |
| Nov 3, 2025 | 2.09 | 2.46 | 2.09 | 2.25 | 2.25 | -12.45% | 252,882 |
| Oct 31, 2025 | 2.46 | 2.67 | 2.39 | 2.57 | 2.57 | 4.05% | 111,468 |
| Oct 30, 2025 | 2.51 | 2.55 | 2.46 | 2.47 | 2.47 | -4.26% | 39,020 |
| Oct 29, 2025 | 2.68 | 2.71 | 2.57 | 2.58 | 2.58 | -6.52% | 80,680 |
| Oct 28, 2025 | 2.98 | 2.98 | 2.70 | 2.76 | 2.76 | -7.38% | 127,657 |
| Oct 27, 2025 | 3.05 | 3.09 | 2.90 | 2.98 | 2.98 | -2.61% | 29,083 |
| Oct 24, 2025 | 2.97 | 3.21 | 2.97 | 3.06 | 3.06 | 2.34% | 32,793 |
| Oct 23, 2025 | 2.91 | 3.05 | 2.85 | 2.99 | 2.99 | 0.34% | 55,642 |
| Oct 22, 2025 | 3.09 | 3.11 | 2.91 | 2.98 | 2.98 | -4.49% | 62,682 |
| Oct 21, 2025 | 3.17 | 3.27 | 3.10 | 3.12 | 3.12 | -2.80% | 29,676 |
| Oct 20, 2025 | 3.12 | 3.27 | 3.10 | 3.21 | 3.21 | -0.31% | 45,351 |
| Oct 17, 2025 | 2.97 | 3.22 | 2.97 | 3.22 | 3.22 | 5.57% | 77,306 |
| Oct 16, 2025 | 3.15 | 3.32 | 3.04 | 3.05 | 3.05 | -4.69% | 49,992 |
| Oct 15, 2025 | 3.03 | 3.32 | 3.03 | 3.20 | 3.20 | 5.61% | 58,616 |
| Oct 14, 2025 | 3.15 | 3.20 | 2.92 | 3.03 | 3.03 | -6.48% | 135,004 |
| Oct 13, 2025 | 3.30 | 3.45 | 3.24 | 3.24 | 3.24 | -3.28% | 58,483 |
| Oct 10, 2025 | 3.45 | 3.59 | 3.31 | 3.35 | 3.35 | -3.18% | 163,318 |
| Oct 9, 2025 | 3.42 | 3.77 | 3.42 | 3.46 | 3.46 | 1.17% | 114,654 |
| Oct 8, 2025 | 3.34 | 3.48 | 3.33 | 3.42 | 3.42 | 1.79% | 57,204 |
| Oct 7, 2025 | 3.31 | 3.39 | 3.30 | 3.36 | 3.36 | -1.18% | 22,988 |
| Oct 6, 2025 | 3.30 | 3.53 | 3.29 | 3.40 | 3.40 | 3.34% | 62,984 |
| Oct 3, 2025 | 3.26 | 3.50 | 3.22 | 3.29 | 3.29 | -0.30% | 141,935 |
| Oct 2, 2025 | 3.32 | 3.40 | 3.25 | 3.30 | 3.30 | -2.37% | 74,429 |
| Oct 1, 2025 | 3.35 | 3.41 | 3.31 | 3.38 | 3.38 | -1.46% | 77,905 |
| Sep 30, 2025 | 4.00 | 4.07 | 3.28 | 3.43 | 3.43 | -17.15% | 341,952 |
| Sep 29, 2025 | 4.30 | 4.42 | 4.01 | 4.14 | 4.14 | -3.50% | 110,130 |
| Sep 26, 2025 | 4.27 | 4.36 | 4.21 | 4.29 | 4.29 | 1.18% | 41,259 |
| Sep 25, 2025 | 4.10 | 4.43 | 4.03 | 4.24 | 4.24 | 3.16% | 135,194 |
| Sep 24, 2025 | 4.39 | 4.39 | 4.09 | 4.11 | 4.11 | -5.52% | 127,595 |
| Sep 23, 2025 | 4.53 | 4.55 | 4.28 | 4.35 | 4.35 | -0.46% | 139,739 |
| Sep 22, 2025 | 4.19 | 4.49 | 4.10 | 4.37 | 4.37 | 7.90% | 142,993 |
| Sep 19, 2025 | 3.83 | 4.09 | 3.73 | 4.05 | 4.05 | 5.74% | 135,897 |
| Sep 18, 2025 | 3.58 | 3.94 | 3.58 | 3.83 | 3.83 | 4.08% | 80,912 |
| Sep 17, 2025 | 3.36 | 3.73 | 3.36 | 3.68 | 3.68 | 8.24% | 81,174 |
| Sep 16, 2025 | 3.38 | 3.47 | 3.33 | 3.40 | 3.40 | 1.80% | 47,988 |
| Sep 15, 2025 | 3.35 | 3.38 | 3.22 | 3.34 | 3.34 | 3.73% | 57,102 |
| Sep 12, 2025 | 3.21 | 3.34 | 3.09 | 3.22 | 3.22 | -3.01% | 35,367 |
| Sep 11, 2025 | 2.85 | 3.39 | 2.79 | 3.32 | 3.32 | 16.08% | 204,890 |
| Sep 10, 2025 | 2.84 | 2.90 | 2.83 | 2.86 | 2.86 | - | 35,892 |
| Sep 9, 2025 | 2.82 | 2.89 | 2.75 | 2.86 | 2.86 | 0.35% | 107,658 |
| Sep 8, 2025 | 3.05 | 3.10 | 2.85 | 2.85 | 2.85 | -9.52% | 147,748 |
| Sep 5, 2025 | 3.10 | 3.21 | 3.10 | 3.15 | 3.15 | 1.61% | 129,552 |
| Sep 4, 2025 | 3.28 | 3.30 | 3.10 | 3.10 | 3.10 | -4.91% | 68,456 |
| Sep 3, 2025 | 3.60 | 3.60 | 3.15 | 3.26 | 3.26 | -9.19% | 153,343 |
| Sep 2, 2025 | 3.67 | 3.67 | 3.51 | 3.59 | 3.59 | -0.28% | 107,424 |
| Aug 29, 2025 | 3.66 | 3.67 | 3.53 | 3.60 | 3.60 | 1.41% | 154,686 |
| Aug 28, 2025 | 3.85 | 3.89 | 3.52 | 3.55 | 3.55 | -8.97% | 258,179 |
| Aug 27, 2025 | 3.90 | 4.08 | 3.84 | 3.90 | 3.90 | -1.76% | 227,301 |
| Aug 26, 2025 | 4.57 | 4.78 | 3.79 | 3.97 | 3.97 | -11.97% | 675,751 |
| Aug 25, 2025 | 4.06 | 5.15 | 4.06 | 4.51 | 4.51 | 6.37% | 2,945,144 |
| Aug 22, 2025 | 3.92 | 4.41 | 3.62 | 4.24 | 4.24 | -0.47% | 2,384,373 |
| Aug 21, 2025 | 3.64 | 6.20 | 3.55 | 4.26 | 4.26 | 86.84% | 158,867,910 |
| Aug 20, 2025 | 2.58 | 2.58 | 2.25 | 2.28 | 2.28 | -10.94% | 66,190 |
| Aug 19, 2025 | 2.78 | 2.78 | 2.50 | 2.56 | 2.56 | -7.91% | 59,534 |
| Aug 18, 2025 | 2.91 | 3.08 | 2.64 | 2.78 | 2.78 | -5.12% | 50,113 |
| Aug 15, 2025 | 3.15 | 3.15 | 2.86 | 2.93 | 2.93 | -4.56% | 83,197 |
| Aug 14, 2025 | 2.78 | 3.24 | 2.66 | 3.07 | 3.07 | 10.43% | 494,655 |
| Aug 13, 2025 | 2.70 | 2.81 | 2.66 | 2.78 | 2.78 | 1.09% | 96,456 |
| Aug 12, 2025 | 2.76 | 2.78 | 2.60 | 2.75 | 2.75 | -1.79% | 38,886 |
| Aug 11, 2025 | 2.75 | 2.86 | 2.75 | 2.80 | 2.80 | -1.06% | 19,841 |
| Aug 8, 2025 | 2.72 | 2.94 | 2.72 | 2.83 | 2.83 | 0.35% | 41,539 |
| Aug 7, 2025 | 2.88 | 2.88 | 2.76 | 2.82 | 2.82 | -2.08% | 32,679 |
| Aug 6, 2025 | 2.96 | 3.00 | 2.70 | 2.88 | 2.88 | -5.11% | 113,528 |
| Aug 5, 2025 | 2.70 | 3.09 | 2.62 | 3.04 | 3.04 | 12.83% | 194,717 |
| Aug 4, 2025 | 2.72 | 2.74 | 2.67 | 2.69 | 2.69 | -1.10% | 43,168 |
| Aug 1, 2025 | 2.84 | 2.90 | 2.67 | 2.72 | 2.72 | -7.48% | 90,081 |
| Jul 31, 2025 | 3.25 | 3.25 | 2.90 | 2.94 | 2.94 | -7.84% | 92,231 |
| Jul 30, 2025 | 3.06 | 3.22 | 3.00 | 3.19 | 3.19 | 3.91% | 217,929 |
| Jul 29, 2025 | 3.23 | 3.23 | 2.98 | 3.07 | 3.07 | -6.40% | 66,802 |
| Jul 28, 2025 | 3.34 | 3.34 | 3.23 | 3.28 | 3.28 | 0.61% | 34,195 |
| Jul 25, 2025 | 3.27 | 3.30 | 3.25 | 3.26 | 3.26 | 0.62% | 26,900 |
| Jul 24, 2025 | 3.34 | 3.34 | 3.18 | 3.24 | 3.24 | -3.86% | 116,238 |
| Jul 23, 2025 | 3.37 | 3.39 | 3.24 | 3.37 | 3.37 | 0.90% | 151,677 |
| Jul 22, 2025 | 3.25 | 3.35 | 3.13 | 3.34 | 3.34 | 5.03% | 112,982 |
| Jul 21, 2025 | 3.43 | 3.50 | 3.13 | 3.18 | 3.18 | -7.02% | 151,460 |
| Jul 18, 2025 | 3.45 | 3.51 | 3.33 | 3.42 | 3.42 | -3.12% | 121,984 |
| Jul 17, 2025 | 3.42 | 3.58 | 3.42 | 3.53 | 3.53 | 2.32% | 91,816 |