Protagenic Therapeutics, Inc. (PTIX)
OTCMKTS
· Delayed Price · Currency is USD
0.421
-0.079 (-15.78%)
At close: Mar 5, 2026
Protagenic Therapeutics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Mar 5, 2026 | 0.42 | 0.45 | 0.42 | 0.42 | 0.42 | -15.78% | 7,461 |
| Mar 3, 2026 | 0.45 | 0.50 | 0.45 | 0.50 | 0.50 | 10.94% | 2,974 |
| Mar 2, 2026 | 0.45 | 0.47 | 0.45 | 0.45 | 0.45 | -3.08% | 6,549 |
| Feb 27, 2026 | 0.45 | 0.47 | 0.45 | 0.47 | 0.47 | - | 1,989 |
| Feb 26, 2026 | 0.45 | 0.50 | 0.45 | 0.47 | 0.47 | 13.94% | 16,276 |
| Feb 25, 2026 | 0.39 | 0.47 | 0.38 | 0.41 | 0.41 | -3.95% | 31,539 |
| Feb 24, 2026 | 0.46 | 0.46 | 0.42 | 0.42 | 0.42 | -5.58% | 11,474 |
| Feb 23, 2026 | 0.43 | 0.50 | 0.43 | 0.45 | 0.45 | 7.02% | 5,735 |
| Feb 20, 2026 | 0.42 | 0.42 | 0.42 | 0.42 | 0.42 | -10.95% | 405 |
| Feb 19, 2026 | 0.39 | 0.51 | 0.35 | 0.47 | 0.47 | 12.43% | 11,924 |
| Feb 18, 2026 | 0.35 | 0.49 | 0.35 | 0.42 | 0.42 | 20.00% | 7,748 |
| Feb 17, 2026 | 0.40 | 0.40 | 0.35 | 0.35 | 0.35 | -12.50% | 3,193 |
| Feb 13, 2026 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | -15.29% | 9,026 |
| Feb 12, 2026 | 0.46 | 0.47 | 0.25 | 0.47 | 0.47 | -3.63% | 41,799 |
| Feb 11, 2026 | 0.42 | 0.49 | 0.42 | 0.49 | 0.49 | 28.95% | 12,731 |
| Feb 10, 2026 | 0.51 | 0.51 | 0.36 | 0.38 | 0.38 | -4.45% | 8,578 |
| Feb 9, 2026 | 0.34 | 0.47 | 0.34 | 0.40 | 0.40 | -0.58% | 2,989 |
| Feb 6, 2026 | 0.40 | 0.41 | 0.37 | 0.40 | 0.40 | -0.67% | 17,760 |
| Feb 5, 2026 | 0.47 | 0.50 | 0.40 | 0.40 | 0.40 | -17.80% | 6,713 |
| Feb 4, 2026 | 0.45 | 0.51 | 0.31 | 0.49 | 0.49 | 0.39% | 17,830 |
| Feb 3, 2026 | 0.47 | 0.49 | 0.47 | 0.49 | 0.49 | -0.41% | 14,683 |
| Feb 2, 2026 | 0.47 | 0.51 | 0.47 | 0.49 | 0.49 | 2.85% | 28,913 |
| Jan 30, 2026 | 0.30 | 0.48 | 0.30 | 0.48 | 0.48 | -4.72% | 1,389 |
| Jan 29, 2026 | 0.42 | 0.50 | 0.32 | 0.50 | 0.50 | -3.66% | 3,605 |
| Jan 28, 2026 | 0.45 | 0.55 | 0.36 | 0.52 | 0.52 | -4.91% | 14,594 |
| Jan 27, 2026 | 0.50 | 0.57 | 0.50 | 0.55 | 0.55 | 18.65% | 8,616 |
| Jan 26, 2026 | 0.45 | 0.57 | 0.45 | 0.46 | 0.46 | -19.86% | 21,953 |
| Jan 23, 2026 | 0.55 | 0.57 | 0.44 | 0.57 | 0.57 | -0.35% | 2,431 |
| Jan 22, 2026 | 0.44 | 0.59 | 0.44 | 0.58 | 0.58 | 33.95% | 10,889 |
| Jan 21, 2026 | 0.50 | 0.57 | 0.43 | 0.43 | 0.43 | -14.12% | 6,114 |
| Jan 20, 2026 | 0.53 | 0.54 | 0.41 | 0.50 | 0.50 | -15.14% | 5,336 |
| Jan 16, 2026 | 0.63 | 0.65 | 0.54 | 0.59 | 0.59 | 9.26% | 6,379 |
| Jan 15, 2026 | 0.59 | 0.59 | 0.54 | 0.54 | 0.54 | -8.86% | 2,026 |
| Jan 14, 2026 | 0.62 | 0.65 | 0.51 | 0.59 | 0.59 | -3.66% | 6,631 |
| Jan 13, 2026 | 0.54 | 0.66 | 0.50 | 0.62 | 0.62 | 11.82% | 11,207 |
| Jan 12, 2026 | 0.62 | 0.65 | 0.47 | 0.55 | 0.55 | -11.59% | 22,206 |
| Jan 9, 2026 | 0.66 | 0.72 | 0.59 | 0.62 | 0.62 | -5.50% | 44,621 |
| Jan 8, 2026 | 0.62 | 0.66 | 0.54 | 0.66 | 0.66 | 6.18% | 34,356 |
| Jan 7, 2026 | 0.55 | 0.72 | 0.55 | 0.62 | 0.62 | 14.18% | 83,937 |
| Jan 6, 2026 | 0.52 | 0.63 | 0.52 | 0.54 | 0.54 | -4.74% | 124,768 |
| Jan 5, 2026 | 0.32 | 0.61 | 0.26 | 0.57 | 0.57 | -22.97% | 580,874 |
| Jan 2, 2026 | 1.26 | 1.27 | 0.70 | 0.74 | 0.74 | -43.08% | 1,922,073 |
| Dec 31, 2025 | 1.36 | 1.48 | 1.30 | 1.30 | 1.30 | -4.41% | 74,169 |
| Dec 30, 2025 | 1.44 | 1.50 | 1.32 | 1.36 | 1.36 | -8.72% | 49,838 |
| Dec 29, 2025 | 1.36 | 1.50 | 1.29 | 1.49 | 1.49 | 12.45% | 59,731 |
| Dec 26, 2025 | 1.14 | 1.35 | 1.13 | 1.33 | 1.33 | 15.22% | 67,968 |
| Dec 24, 2025 | 1.21 | 1.22 | 1.12 | 1.15 | 1.15 | -6.88% | 45,266 |
| Dec 23, 2025 | 1.25 | 1.26 | 1.24 | 1.24 | 1.24 | -0.40% | 11,235 |
| Dec 22, 2025 | 1.18 | 1.26 | 1.17 | 1.24 | 1.24 | 4.20% | 60,865 |
| Dec 19, 2025 | 1.30 | 1.31 | 1.19 | 1.19 | 1.19 | -7.75% | 49,619 |
| Dec 18, 2025 | 1.41 | 1.41 | 1.25 | 1.29 | 1.29 | -5.84% | 69,960 |
| Dec 17, 2025 | 1.48 | 1.52 | 1.34 | 1.37 | 1.37 | -9.87% | 56,393 |
| Dec 16, 2025 | 1.55 | 1.56 | 1.48 | 1.52 | 1.52 | -3.18% | 43,491 |
| Dec 15, 2025 | 1.62 | 1.63 | 1.53 | 1.57 | 1.57 | -4.85% | 43,346 |
| Dec 12, 2025 | 1.56 | 1.68 | 1.55 | 1.65 | 1.65 | 4.43% | 113,950 |
| Dec 11, 2025 | 1.60 | 1.60 | 1.54 | 1.58 | 1.58 | -5.95% | 43,085 |
| Dec 10, 2025 | 1.58 | 1.70 | 1.54 | 1.68 | 1.68 | 3.70% | 100,135 |
| Dec 9, 2025 | 1.61 | 1.65 | 1.46 | 1.62 | 1.62 | -1.82% | 564,358 |
| Dec 8, 2025 | 1.75 | 1.77 | 1.52 | 1.65 | 1.65 | -1.20% | 180,510 |
| Dec 5, 2025 | 1.71 | 1.80 | 1.60 | 1.67 | 1.67 | -0.60% | 83,542 |
| Dec 4, 2025 | 1.84 | 1.84 | 1.64 | 1.68 | 1.68 | -6.93% | 126,354 |
| Dec 3, 2025 | 1.82 | 1.89 | 1.73 | 1.81 | 1.81 | -4.50% | 54,811 |
| Dec 2, 2025 | 1.90 | 1.97 | 1.86 | 1.89 | 1.89 | -3.08% | 85,513 |
| Dec 1, 2025 | 2.00 | 2.04 | 1.84 | 1.95 | 1.95 | -8.45% | 151,757 |
| 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 | - | 85,925 |
| 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% | 113,627 |
| Nov 21, 2025 | 1.99 | 2.15 | 1.97 | 2.07 | 2.07 | 2.48% | 56,065 |
| Nov 20, 2025 | 2.11 | 2.20 | 1.96 | 2.02 | 2.02 | - | 48,638 |
| 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 |