OTC:PTIX | Historical Stock Price | Protagenic Therapeutics, Inc.\new

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2021-04-27 to 2026-08-27
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$0.16$0.66$2.75$11.44$47.61$198.162021-04-272026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

View year

Historical Stock Price — 2024

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2024-12-31$6.86$6.867,764
2024-12-30$7.52$7.5228,329
2024-12-27$7.77$7.7749,429
2024-12-26$7.45$7.454,764
2024-12-24$6.89$6.8921,214
2024-12-23$7.49$7.49128,350
2024-12-20$8.40$8.4090,271
2024-12-19$9.18$9.1824,000
2024-12-18$8.99$8.9960,829
2024-12-17$7.84$7.845,264
2024-12-16$7.21$7.214,964
2024-12-13$6.93$6.931,957
2024-12-12$7.21$7.212,100
2024-12-11$7.28$7.285,371
2024-12-10$7.70$7.701,079
2024-12-09$7.28$7.282,071
2024-12-06$7.56$7.563,043
2024-12-05$7.53$7.535,279
2024-12-04$7.66$7.6615,271
2024-12-03$7.71$7.7120,543
2024-12-02$6.58$6.5863,557
2024-11-29$8.26$8.268,286
2024-11-27$8.37$8.3743,936
2024-11-26$10.22$10.22175,150
2024-11-25$9.04$9.044,843
2024-11-22$9.10$9.102,521
2024-11-21$8.51$8.512,243
2024-11-20$8.33$8.333,143
2024-11-19$8.13$8.131,264
2024-11-18$8.12$8.1212,050
2024-11-15$8.65$8.651,321
2024-11-14$9.67$9.672,779
2024-11-13$9.10$9.1026,286
2024-11-12$11.20$11.20227,286
2024-11-11$10.78$10.789,786
2024-11-08$8.40$8.40936
2024-11-07$8.81$8.81207
2024-11-06$8.40$8.402,143
2024-11-05$8.82$8.821,414
2024-11-04$8.50$8.501,907
2024-11-01$8.51$8.511,614
2024-10-31$9.17$9.173,471
2024-10-30$9.17$9.174,543
2024-10-29$8.92$8.9234,900
2024-10-28$7.84$7.844,786
2024-10-25$8.58$8.581,093
2024-10-24$8.96$8.961,600
2024-10-23$9.60$9.602,514
2024-10-22$8.97$8.972,821
2024-10-21$9.80$9.8022,171
2024-10-18$7.67$7.67257
2024-10-17$7.56$7.56579
2024-10-16$7.83$7.834,629
2024-10-15$7.71$7.714,050
2024-10-14$7.42$7.42843
2024-10-11$7.14$7.1412,171
2024-10-10$8.18$8.185,929
2024-10-09$7.94$7.94879
2024-10-08$8.05$8.05643
2024-10-07$8.29$8.29714
2024-10-04$8.90$8.90536
2024-10-03$8.90$8.901,043
2024-10-02$8.82$8.82729
2024-10-01$8.40$8.401,264
2024-09-30$8.78$8.782,321
2024-09-27$8.68$8.68621
2024-09-26$7.99$7.992,057
2024-09-25$8.18$8.181,071
2024-09-24$8.41$8.411,764
2024-09-23$8.26$8.263,436
2024-09-20$7.85$7.854,764
2024-09-19$8.32$8.324,479
2024-09-18$8.76$8.763,307
2024-09-17$9.74$9.744,393
2024-09-16$11.20$11.2016,700
2024-09-13$11.06$11.0627,914
2024-09-12$12.18$12.18789,693
2024-09-11$14.00$14.0098,607
2024-09-10$14.42$14.4248,379
2024-09-09$11.24$11.242,650
2024-09-06$10.57$10.571,557
2024-09-05$9.94$9.947,000
2024-09-04$8.43$8.43107
2024-09-03$8.26$8.26450
2024-08-30$8.48$8.48100
2024-08-29$8.15$8.15857
2024-08-28$8.40$8.400
2024-08-27$8.40$8.4029
2024-08-26$8.95$8.95193
2024-08-23$9.10$9.10121
2024-08-22$8.86$8.86564
2024-08-21$9.76$9.76850
2024-08-20$9.80$9.801,886
2024-08-19$9.79$9.79429
2024-08-16$7.43$7.43679
2024-08-15$7.52$7.52857
2024-08-14$8.90$8.90164
2024-08-13$10.00$10.001,686
2024-08-12$10.64$10.64421
2024-08-09$8.82$8.8236
2024-08-08$9.11$9.117
2024-08-07$8.54$8.54336
2024-08-06$8.54$8.5493
2024-08-05$8.67$8.67443
2024-08-02$8.61$8.6186
2024-08-01$10.08$10.081,236
2024-07-31$9.94$9.9493
2024-07-30$9.80$9.80129
2024-07-29$9.80$9.80143
2024-07-26$9.81$9.81393
2024-07-25$10.30$10.3079
2024-07-24$10.47$10.47100
2024-07-23$10.64$10.64221
2024-07-22$9.81$9.8150
2024-07-19$9.81$9.81786
2024-07-18$10.57$10.57707
2024-07-17$9.83$9.8393
2024-07-16$10.08$10.08321
2024-07-15$10.50$10.50564
2024-07-12$10.84$10.84150
2024-07-11$10.64$10.64214
2024-07-10$10.15$10.15436
2024-07-09$11.45$11.45200
2024-07-08$11.37$11.37136
2024-07-05$11.94$11.94200
2024-07-03$10.50$10.50300
2024-07-02$10.71$10.713,843
2024-07-01$12.60$12.60729
2024-06-28$12.67$12.67193
2024-06-27$12.60$12.60600
2024-06-26$12.88$12.88364
2024-06-25$13.72$13.721,029
2024-06-24$12.66$12.661,286
2024-06-21$14.00$14.001,171
2024-06-20$13.41$13.41650
2024-06-18$13.44$13.444,750
2024-06-17$13.30$13.30186
2024-06-14$14.42$14.42621
2024-06-13$12.98$12.98486
2024-06-12$12.60$12.60421
2024-06-11$12.74$12.74214
2024-06-10$13.51$13.51464
2024-06-07$14.70$14.70243
2024-06-06$15.12$15.121,886
2024-06-05$16.94$16.94293
2024-06-04$17.08$17.08129
2024-06-03$19.04$19.04279
2024-05-31$18.48$18.48557
2024-05-30$19.74$19.74493
2024-05-29$20.57$20.571,164
2024-05-28$21.63$21.63857
2024-05-24$21.84$21.842,493
2024-05-23$23.38$23.385,464
2024-05-22$25.19$25.1916,064
2024-05-21$22.37$22.372,050
2024-05-20$20.16$20.161,264
2024-05-17$21.00$21.00350
2024-05-16$20.86$20.86100
2024-05-15$19.46$19.46343
2024-05-14$17.50$17.50693
2024-05-13$18.83$18.830
2024-05-10$18.83$18.8364
2024-05-09$18.06$18.0650
2024-05-08$17.37$17.37114
2024-05-07$17.08$17.08214
2024-05-06$17.50$17.50200
2024-05-03$17.92$17.92129
2024-05-02$19.25$19.25107
2024-05-01$18.20$18.20121
2024-04-30$19.28$19.28257
2024-04-29$19.74$19.74329
2024-04-26$19.39$19.39750
2024-04-25$21.97$21.971,193
2024-04-24$22.93$22.93464
2024-04-23$21.98$21.985,100
2024-04-22$17.50$17.50536
2024-04-19$18.06$18.06307
2024-04-18$19.18$19.18414
2024-04-17$18.90$18.9093
2024-04-16$18.90$18.90157
2024-04-15$19.56$19.56136
2024-04-12$20.16$20.16714
2024-04-11$22.96$22.96236
2024-04-10$22.82$22.82186
2024-04-09$21.91$21.91421
2024-04-08$21.42$21.42114
2024-04-05$22.54$22.541,943
2024-04-04$23.10$23.10814
2024-04-03$22.96$22.96214
2024-04-02$23.66$23.66679
2024-04-01$24.36$24.36407
2024-03-28$24.50$24.50643
2024-03-27$25.48$25.482,336
2024-03-26$24.50$24.502,193
2024-03-25$24.39$24.39621
2024-03-22$21.70$21.70829
2024-03-21$20.02$20.021,421
2024-03-20$18.90$18.903,171
2024-03-19$18.13$18.134,057
2024-03-18$16.80$16.80186
2024-03-15$16.10$16.101,307
2024-03-14$15.40$15.401,029
2024-03-13$15.54$15.54743
2024-03-12$14.14$14.14286
2024-03-11$15.82$15.82286
2024-03-08$15.40$15.40721
2024-03-07$14.48$14.48229
2024-03-06$14.28$14.281,293
2024-03-05$16.24$16.246,657
2024-03-04$14.00$14.00186
2024-03-01$14.00$14.00386
2024-02-29$14.70$14.70586
2024-02-28$13.57$13.57393
2024-02-27$12.32$12.32143
2024-02-26$12.32$12.3236
2024-02-23$12.42$12.42114
2024-02-22$13.72$13.72514
2024-02-21$12.32$12.321,143
2024-02-20$14.00$14.00471
2024-02-16$14.00$14.00414
2024-02-15$13.51$13.5150
2024-02-14$13.44$13.44957
2024-02-13$13.58$13.583,443
2024-02-12$13.43$13.4321
2024-02-09$13.43$13.43229
2024-02-08$13.44$13.44136
2024-02-07$12.67$12.6743
2024-02-06$13.58$13.58150
2024-02-05$11.77$11.7779
2024-02-02$13.58$13.5850
2024-02-01$13.30$13.30164
2024-01-31$13.30$13.30121
2024-01-30$12.18$12.18329
2024-01-29$10.64$10.64164
2024-01-26$12.46$12.4636
2024-01-25$12.61$12.61300
2024-01-24$13.16$13.16586
2024-01-23$13.30$13.30236
2024-01-22$12.74$12.74257
2024-01-19$12.18$12.1821
2024-01-18$12.18$12.18200
2024-01-17$12.04$12.04114
2024-01-16$11.90$11.90336
2024-01-12$11.76$11.760
2024-01-11$11.76$11.76143
2024-01-10$12.60$12.60129
2024-01-09$12.04$12.04443
2024-01-08$12.04$12.0429
2024-01-05$13.30$13.30250
2024-01-04$13.47$13.47150
2024-01-03$12.88$12.8871
2024-01-02$12.88$12.8821