Protagenic Therapeutics, Inc. (PTIX)
OTCMKTS · Delayed Price · Currency is USD
0.3500
+0.0405 (13.09%)
At close: Aug 10, 2026
Protagenic Therapeutics Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Aug 10, 2026 | 0.27 | 0.41 | 0.27 | 0.35 | 0.35 | 13.09% | 48,215 |
| Aug 7, 2026 | 0.31 | 0.31 | 0.31 | 0.31 | 0.31 | 40.68% | 118 |
| Aug 6, 2026 | 0.25 | 0.25 | 0.22 | 0.22 | 0.22 | -14.99% | 4,001 |
| Aug 5, 2026 | 0.25 | 0.26 | 0.25 | 0.26 | 0.26 | 23.24% | 9,028 |
| Aug 4, 2026 | 0.18 | 0.21 | 0.18 | 0.21 | 0.21 | 14.54% | 2,574 |
| Aug 3, 2026 | 0.21 | 0.21 | 0.14 | 0.18 | 0.18 | 1.86% | 353 |
| Jul 31, 2026 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | 8.02% | 2,778 |
| Jul 30, 2026 | 0.14 | 0.19 | 0.14 | 0.17 | 0.17 | 29.98% | 28,225 |
| Jul 29, 2026 | 0.14 | 0.14 | 0.13 | 0.13 | 0.13 | -8.43% | 523 |
| Jul 28, 2026 | 0.25 | 0.25 | 0.14 | 0.14 | 0.14 | -36.19% | 34,316 |
| Jul 27, 2026 | 0.24 | 0.29 | 0.14 | 0.22 | 0.22 | 1.76% | 41,593 |
| Jul 21, 2026 | 0.18 | 0.29 | 0.18 | 0.22 | 0.22 | -17.17% | 2,267 |
| Jul 13, 2026 | 0.26 | 0.26 | 0.26 | 0.26 | 0.26 | 0.12% | 324 |
| Jul 10, 2026 | 0.14 | 0.26 | 0.14 | 0.26 | 0.26 | 18.18% | 7,542 |
| Jul 9, 2026 | 0.17 | 0.22 | 0.17 | 0.22 | 0.22 | 15.79% | 34,113 |
| Jul 8, 2026 | 0.18 | 0.20 | 0.18 | 0.19 | 0.19 | -5.00% | 4,102 |
| Jul 7, 2026 | 0.22 | 0.22 | 0.20 | 0.20 | 0.20 | -9.87% | 8,871 |
| Jul 6, 2026 | 0.23 | 0.23 | 0.22 | 0.22 | 0.22 | -3.52% | 2,528 |
| Jul 2, 2026 | 0.45 | 0.45 | 0.20 | 0.23 | 0.23 | -34.29% | 102,510 |
| Jul 1, 2026 | 0.36 | 0.39 | 0.35 | 0.35 | 0.35 | -10.74% | 1,998 |
| Jun 29, 2026 | 0.41 | 0.41 | 0.37 | 0.39 | 0.39 | 8.95% | 11,051 |
| Jun 25, 2026 | 0.41 | 0.41 | 0.36 | 0.36 | 0.36 | - | 592 |
| Jun 24, 2026 | 0.36 | 0.41 | 0.36 | 0.36 | 0.36 | -20.02% | 2,969 |
| Jun 22, 2026 | 0.36 | 0.45 | 0.36 | 0.45 | 0.45 | 9.76% | 9,191 |
| Jun 18, 2026 | 0.41 | 0.41 | 0.41 | 0.41 | 0.41 | - | 155 |
| Jun 17, 2026 | 0.41 | 0.41 | 0.41 | 0.41 | 0.41 | 1.23% | 2,326 |
| Jun 16, 2026 | 0.41 | 0.43 | 0.41 | 0.41 | 0.41 | 2.27% | 13,089 |
| Jun 15, 2026 | 0.51 | 0.51 | 0.40 | 0.40 | 0.40 | -20.72% | 3,040 |
| Jun 12, 2026 | 0.54 | 0.54 | 0.40 | 0.50 | 0.50 | -26.54% | 58,505 |
| Jun 11, 2026 | 0.68 | 0.68 | 0.68 | 0.68 | 0.68 | 25.93% | 536 |
| Jun 10, 2026 | 0.54 | 0.54 | 0.54 | 0.54 | 0.54 | 2.08% | 5,115 |
| Jun 9, 2026 | 0.50 | 0.53 | 0.50 | 0.53 | 0.53 | 0.49% | 2,363 |
| Jun 8, 2026 | 0.52 | 0.53 | 0.52 | 0.53 | 0.53 | 5.28% | 491 |
| Jun 5, 2026 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | - | 503 |
| Jun 4, 2026 | 0.53 | 0.62 | 0.50 | 0.50 | 0.50 | -5.66% | 6,939 |
| Jun 3, 2026 | 0.50 | 0.53 | 0.50 | 0.53 | 0.53 | 6.00% | 559 |
| Jun 2, 2026 | 0.50 | 0.55 | 0.50 | 0.50 | 0.50 | 0.24% | 4,227 |
| Jun 1, 2026 | 0.40 | 0.55 | 0.40 | 0.50 | 0.50 | -8.14% | 4,680 |
| May 28, 2026 | 0.40 | 0.54 | 0.40 | 0.54 | 0.54 | 4.26% | 2,033 |
| May 27, 2026 | 0.53 | 0.53 | 0.40 | 0.52 | 0.52 | -4.61% | 3,221 |
| May 26, 2026 | 0.50 | 0.65 | 0.43 | 0.55 | 0.55 | -11.58% | 6,421 |
| May 21, 2026 | 0.62 | 0.62 | 0.62 | 0.62 | 0.62 | -4.99% | 238 |
| May 20, 2026 | 0.45 | 0.65 | 0.44 | 0.65 | 0.65 | - | 4,138 |
| May 18, 2026 | 0.49 | 0.65 | 0.49 | 0.65 | 0.65 | - | 433 |
| May 15, 2026 | 0.65 | 0.65 | 0.65 | 0.65 | 0.65 | - | 663 |
| May 14, 2026 | 0.65 | 0.65 | 0.65 | 0.65 | 0.65 | 32.66% | 329 |
| May 13, 2026 | 0.49 | 0.49 | 0.49 | 0.49 | 0.49 | 1.24% | 400 |
| May 12, 2026 | 0.65 | 0.65 | 0.43 | 0.48 | 0.48 | -25.55% | 34,124 |
| May 11, 2026 | 0.82 | 0.90 | 0.53 | 0.65 | 0.65 | -17.72% | 5,637 |
| May 8, 2026 | 0.64 | 0.80 | 0.62 | 0.79 | 0.79 | 36.21% | 7,553 |