Protagenic Therapeutics, Inc. (PTIX)
NASDAQ: PTIX · Real-Time Price · USD
1.190
-0.100 (-7.75%)
Dec 19, 2025, 4:00 PM EST - Market closed
Protagenic Therapeutics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Dec 19, 2025 | 1.30 | 1.31 | 1.19 | 1.19 | 1.19 | -7.75% | 49,107 |
| 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% | 56,268 |
| Dec 16, 2025 | 1.55 | 1.56 | 1.48 | 1.52 | 1.52 | -3.18% | 43,151 |
| Dec 15, 2025 | 1.62 | 1.63 | 1.53 | 1.57 | 1.57 | -4.85% | 42,046 |
| Dec 12, 2025 | 1.56 | 1.68 | 1.55 | 1.65 | 1.65 | 4.43% | 112,850 |
| Dec 11, 2025 | 1.60 | 1.60 | 1.54 | 1.58 | 1.58 | -5.95% | 43,073 |
| Dec 10, 2025 | 1.58 | 1.70 | 1.54 | 1.68 | 1.68 | 3.70% | 96,000 |
| Dec 9, 2025 | 1.61 | 1.65 | 1.46 | 1.62 | 1.62 | -1.82% | 561,975 |
| Dec 8, 2025 | 1.75 | 1.77 | 1.52 | 1.65 | 1.65 | -1.20% | 180,465 |
| 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 |