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Protagenic Therapeutics, Inc. (PTIX)
OTCMKTS · Delayed Price · Currency is USD
1.080
+0.109 (11.22%)
At close: Apr 28, 2026

Protagenic Therapeutics Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Apr 28, 20260.991.080.951.081.0811.23%32,180
Apr 27, 20260.861.000.860.970.9719.88%35,864
Apr 24, 20260.730.820.730.810.8111.91%21,292
Apr 23, 20260.690.770.670.720.724.93%13,055
Apr 22, 20260.660.690.660.690.694.52%3,077
Apr 21, 20260.530.680.530.660.6620.02%14,936
Apr 20, 20260.570.570.530.550.55-3.49%6,302
Apr 17, 20260.560.570.540.570.572.67%2,423
Apr 16, 20260.540.560.540.560.564.72%1,666
Apr 15, 20260.560.570.530.530.53-5.20%4,660
Apr 14, 20260.550.560.550.560.561.65%1,472
Apr 13, 20260.590.590.550.550.55-5.98%5,499
Apr 10, 20260.650.650.590.590.59-15.19%1,407
Apr 8, 20260.530.700.530.690.6930.15%9,451
Apr 7, 20260.530.700.530.530.53-2,631
Apr 6, 20260.530.530.530.530.53-495
Apr 2, 20260.570.720.520.530.53-7.03%7,284
Apr 1, 20260.520.680.520.570.57-15.85%1,311
Mar 31, 20260.630.730.630.680.688.40%3,561
Mar 30, 20260.590.680.590.630.6320.19%1,464
Mar 27, 20260.690.740.520.520.52-30.67%1,220
Mar 26, 20260.500.750.500.750.757.14%6,238
Mar 25, 20260.720.760.600.700.70-12,865
Mar 24, 20260.700.700.700.700.70-2.78%354
Mar 23, 20260.680.720.680.720.729.09%457
Mar 20, 20260.620.730.620.660.666.45%5,422
Mar 19, 20260.700.730.620.620.62-10.79%3,408
Mar 18, 20260.560.710.560.700.7028.11%23,594
Mar 17, 20260.550.560.540.540.5410.69%2,202
Mar 12, 20260.520.520.490.490.49-2,327
Mar 10, 20260.450.600.450.490.4916.39%20,322
Mar 9, 20260.450.540.420.420.42-4,570
Mar 5, 20260.420.450.420.420.42-15.78%7,461
Mar 3, 20260.450.500.450.500.5010.94%2,974
Mar 2, 20260.450.470.450.450.45-3.08%6,549
Feb 27, 20260.450.470.450.470.47-1,989
Feb 26, 20260.450.500.450.470.4713.94%16,276
Feb 25, 20260.390.470.380.410.41-3.95%31,539
Feb 24, 20260.460.460.420.420.42-5.58%11,474
Feb 23, 20260.430.500.430.450.457.02%5,735
Feb 20, 20260.420.420.420.420.42-10.95%405
Feb 19, 20260.390.510.350.470.4712.43%11,924
Feb 18, 20260.350.490.350.420.4220.00%7,748
Feb 17, 20260.400.400.350.350.35-12.50%3,193
Feb 13, 20260.400.400.400.400.40-15.29%9,026
Feb 12, 20260.460.470.250.470.47-3.63%41,799
Feb 11, 20260.420.490.420.490.4928.95%12,731
Feb 10, 20260.510.510.360.380.38-4.45%8,578
Feb 9, 20260.340.470.340.400.40-0.58%2,989
Feb 6, 20260.400.410.370.400.40-0.67%17,760
Feb 5, 20260.470.500.400.400.40-17.80%6,713
Feb 4, 20260.450.510.310.490.490.39%17,830
Feb 3, 20260.470.490.470.490.49-0.41%14,683
Feb 2, 20260.470.510.470.490.492.85%28,913
Jan 30, 20260.300.480.300.480.48-4.72%1,389
Jan 29, 20260.420.500.320.500.50-3.66%3,605
Jan 28, 20260.450.550.360.520.52-4.91%14,594
Jan 27, 20260.500.570.500.550.5518.65%8,616
Jan 26, 20260.450.570.450.460.46-19.86%21,953
Jan 23, 20260.550.570.440.570.57-0.35%2,431
Jan 22, 20260.440.590.440.580.5833.95%10,889
Jan 21, 20260.500.570.430.430.43-14.12%6,114
Jan 20, 20260.530.540.410.500.50-15.14%5,336
Jan 16, 20260.630.650.540.590.599.26%6,379
Jan 15, 20260.590.590.540.540.54-8.86%2,026
Jan 14, 20260.620.650.510.590.59-3.66%6,631
Jan 13, 20260.540.660.500.620.6211.82%11,207
Jan 12, 20260.620.650.470.550.55-11.59%22,206
Jan 9, 20260.660.720.590.620.62-5.50%44,621
Jan 8, 20260.620.660.540.660.666.18%34,356
Jan 7, 20260.550.720.550.620.6214.18%83,937
Jan 6, 20260.520.630.520.540.54-4.74%124,768
Jan 5, 20260.320.610.260.570.57-22.97%580,874
Jan 2, 20261.261.270.700.740.74-43.08%1,922,073
Dec 31, 20251.361.481.301.301.30-4.41%74,169
Dec 30, 20251.441.501.321.361.36-8.72%49,838
Dec 29, 20251.361.501.291.491.4912.45%59,731
Dec 26, 20251.141.351.131.331.3315.22%67,968
Dec 24, 20251.211.221.121.151.15-6.88%45,266
Dec 23, 20251.251.261.241.241.24-0.40%11,235
Dec 22, 20251.181.261.171.241.244.20%60,865
Dec 19, 20251.301.311.191.191.19-7.75%49,619
Dec 18, 20251.411.411.251.291.29-5.84%69,960
Dec 17, 20251.481.521.341.371.37-9.87%56,393
Dec 16, 20251.551.561.481.521.52-3.18%43,491
Dec 15, 20251.621.631.531.571.57-4.85%43,346
Dec 12, 20251.561.681.551.651.654.43%113,950
Dec 11, 20251.601.601.541.581.58-5.95%43,085
Dec 10, 20251.581.701.541.681.683.70%100,135
Dec 9, 20251.611.651.461.621.62-1.82%564,358
Dec 8, 20251.751.771.521.651.65-1.20%180,510
Dec 5, 20251.711.801.601.671.67-0.60%83,542
Dec 4, 20251.841.841.641.681.68-6.93%126,354
Dec 3, 20251.821.891.731.811.81-4.50%54,811
Dec 2, 20251.901.971.861.891.89-3.08%85,513
Dec 1, 20252.002.041.841.951.95-8.45%151,757
Nov 28, 20251.912.131.912.132.13-4.48%128,740
Nov 26, 20252.272.382.232.232.23-85,925
Nov 25, 20252.352.352.182.232.23-1.76%89,505
Nov 24, 20252.122.352.102.272.279.66%113,627