Protagenic Therapeutics, Inc. (PTIX)
OTCMKTS · Delayed Price · Currency is USD
0.5300
-0.040075 (-7.03%)
At close: Apr 2, 2026
Protagenic Therapeutics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Apr 2, 2026 | 0.57 | 0.72 | 0.52 | 0.53 | 0.53 | -7.03% | 7,284 |
| Apr 1, 2026 | 0.52 | 0.68 | 0.52 | 0.57 | 0.57 | -15.85% | 1,311 |
| Mar 31, 2026 | 0.63 | 0.73 | 0.63 | 0.68 | 0.68 | 8.40% | 3,561 |
| Mar 30, 2026 | 0.59 | 0.68 | 0.59 | 0.63 | 0.63 | 20.19% | 1,464 |
| Mar 27, 2026 | 0.69 | 0.74 | 0.52 | 0.52 | 0.52 | -30.67% | 1,220 |
| Mar 26, 2026 | 0.50 | 0.75 | 0.50 | 0.75 | 0.75 | 7.14% | 6,238 |
| Mar 25, 2026 | 0.72 | 0.76 | 0.60 | 0.70 | 0.70 | - | 12,865 |
| Mar 24, 2026 | 0.70 | 0.70 | 0.70 | 0.70 | 0.70 | -2.78% | 354 |
| Mar 23, 2026 | 0.68 | 0.72 | 0.68 | 0.72 | 0.72 | 9.09% | 457 |
| Mar 20, 2026 | 0.62 | 0.73 | 0.62 | 0.66 | 0.66 | 6.45% | 5,422 |
| Mar 19, 2026 | 0.70 | 0.73 | 0.62 | 0.62 | 0.62 | -10.79% | 3,408 |
| Mar 18, 2026 | 0.56 | 0.71 | 0.56 | 0.70 | 0.70 | 28.11% | 23,594 |
| Mar 17, 2026 | 0.55 | 0.56 | 0.54 | 0.54 | 0.54 | 10.69% | 2,202 |
| Mar 12, 2026 | 0.52 | 0.52 | 0.49 | 0.49 | 0.49 | - | 2,327 |
| Mar 10, 2026 | 0.45 | 0.60 | 0.45 | 0.49 | 0.49 | 16.39% | 20,322 |
| Mar 9, 2026 | 0.45 | 0.54 | 0.42 | 0.42 | 0.42 | - | 4,570 |
| 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 |