Protagenic Therapeutics, Inc. (PTIX)
NASDAQ: PTIX · Real-Time Price · USD
3.100
-0.160 (-4.91%)
Sep 4, 2025, 4:00 PM - Market closed
Protagenic Therapeutics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| 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% | 153,138 |
| 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% | 158,176,479 |
| 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 |
| Jul 16, 2025 | 3.44 | 3.52 | 3.40 | 3.45 | 3.45 | -0.86% | 106,021 |
| Jul 15, 2025 | 3.57 | 3.75 | 3.33 | 3.48 | 3.48 | -2.52% | 171,187 |
| Jul 14, 2025 | 3.67 | 3.70 | 3.51 | 3.57 | 3.57 | -3.25% | 101,613 |
| Jul 11, 2025 | 3.74 | 3.79 | 3.44 | 3.69 | 3.69 | -1.34% | 214,228 |
| Jul 10, 2025 | 3.83 | 4.04 | 3.71 | 3.74 | 3.74 | -2.35% | 443,410 |
| Jul 9, 2025 | 3.45 | 3.85 | 3.45 | 3.83 | 3.83 | 11.66% | 373,684 |
| Jul 8, 2025 | 3.34 | 3.46 | 3.33 | 3.43 | 3.43 | 1.18% | 244,522 |
| Jul 7, 2025 | 3.51 | 3.51 | 3.28 | 3.39 | 3.39 | -2.02% | 74,582 |
| Jul 3, 2025 | 3.55 | 3.55 | 3.33 | 3.46 | 3.46 | -0.57% | 140,794 |
| Jul 2, 2025 | 3.61 | 3.62 | 3.43 | 3.48 | 3.48 | -1.69% | 235,045 |
| Jul 1, 2025 | 3.65 | 3.65 | 3.52 | 3.54 | 3.54 | -3.01% | 137,340 |
| Jun 30, 2025 | 3.78 | 3.83 | 3.46 | 3.65 | 3.65 | -1.35% | 213,593 |
| Jun 27, 2025 | 3.80 | 3.83 | 3.60 | 3.70 | 3.70 | -4.39% | 146,188 |
| Jun 26, 2025 | 3.90 | 4.19 | 3.70 | 3.87 | 3.87 | 5.74% | 545,531 |
| Jun 25, 2025 | 3.80 | 3.80 | 3.55 | 3.66 | 3.66 | - | 139,587 |