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 — 2022

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2022-12-30$22.40$22.401,163
2022-12-29$19.60$19.601,884
2022-12-28$20.44$20.44814
2022-12-27$21.39$21.39466
2022-12-23$21.84$21.84168
2022-12-22$25.03$25.03225
2022-12-21$23.07$23.07111
2022-12-20$25.20$25.20275
2022-12-19$25.76$25.76479
2022-12-16$23.69$23.69425
2022-12-15$25.98$25.9845
2022-12-14$23.86$23.86170
2022-12-13$22.40$22.40843
2022-12-12$24.08$24.08100
2022-12-09$23.52$23.52370
2022-12-08$24.47$24.47375
2022-12-07$24.08$24.082,082
2022-12-06$29.12$29.12600
2022-12-05$29.12$29.1273
2022-12-02$29.68$29.68327
2022-12-01$30.63$30.63570
2022-11-30$29.74$29.7450
2022-11-29$29.12$29.12609
2022-11-28$29.85$29.85341
2022-11-25$30.80$30.80920
2022-11-23$30.24$30.241,002
2022-11-22$31.14$31.14616
2022-11-21$31.14$31.14209
2022-11-18$33.15$33.15738
2022-11-17$30.24$30.24514
2022-11-16$30.24$30.24234
2022-11-15$31.25$31.25514
2022-11-14$31.36$31.3682
2022-11-11$31.92$31.92411
2022-11-10$30.80$30.80134
2022-11-09$33.43$33.431,270
2022-11-08$32.48$32.482,854
2022-11-07$33.10$33.10154
2022-11-04$34.44$34.441,293
2022-11-03$32.65$32.65154
2022-11-02$30.80$30.80686
2022-11-01$31.19$31.19363
2022-10-31$31.92$31.92230
2022-10-28$33.04$33.042,077
2022-10-27$35.00$35.00629
2022-10-26$33.32$33.32625
2022-10-25$34.44$34.441,152
2022-10-24$32.76$32.76427
2022-10-21$34.72$34.72445
2022-10-20$34.89$34.89100
2022-10-19$35.78$35.78454
2022-10-18$35.28$35.28448
2022-10-17$33.60$33.60123
2022-10-14$34.16$34.16234
2022-10-13$36.40$36.40368
2022-10-12$33.60$33.60282
2022-10-11$35.50$35.5095
2022-10-10$36.18$36.18427
2022-10-07$34.72$34.72273
2022-10-06$33.94$33.94391
2022-10-05$34.72$34.72166
2022-10-04$33.71$33.71643
2022-10-03$35.78$35.78473
2022-09-30$31.98$31.98639
2022-09-29$34.72$34.72311
2022-09-28$34.16$34.16339
2022-09-27$34.22$34.22320
2022-09-26$37.52$37.52148
2022-09-23$37.52$37.52429
2022-09-22$36.96$36.96429
2022-09-21$37.13$37.13321
2022-09-20$37.52$37.52152
2022-09-19$38.08$38.08223
2022-09-16$38.02$38.02179
2022-09-15$36.40$36.4071
2022-09-14$36.68$36.68204
2022-09-13$38.36$38.36321
2022-09-12$38.64$38.64139
2022-09-09$38.25$38.2577
2022-09-08$40.15$40.15177
2022-09-07$38.64$38.64179
2022-09-06$38.70$38.70370
2022-09-02$38.75$38.75288
2022-09-01$41.44$41.44161
2022-08-31$41.72$41.72398
2022-08-30$43.12$43.122,207
2022-08-29$40.32$40.32714
2022-08-26$40.88$40.88521
2022-08-25$44.63$44.631,102
2022-08-24$40.32$40.32638
2022-08-23$38.64$38.641,216
2022-08-22$36.40$36.401,102
2022-08-19$37.86$37.86377
2022-08-18$40.60$40.601,488
2022-08-17$38.64$38.64107
2022-08-16$38.58$38.58288
2022-08-15$37.97$37.972,586
2022-08-12$33.71$33.71693
2022-08-11$34.38$34.38534
2022-08-10$35.34$35.34414
2022-08-09$36.06$36.06111
2022-08-08$36.06$36.06559
2022-08-05$36.40$36.40421
2022-08-04$36.79$36.79441
2022-08-03$35.50$35.50725
2022-08-02$39.20$39.201,398
2022-08-01$33.60$33.60779
2022-07-29$33.04$33.04304
2022-07-28$32.20$32.20371
2022-07-27$32.20$32.20511
2022-07-26$33.60$33.60229
2022-07-25$34.16$34.16143
2022-07-22$35.28$35.28143
2022-07-21$35.06$35.06386
2022-07-20$35.06$35.06264
2022-07-19$34.89$34.89243
2022-07-18$34.55$34.55280
2022-07-15$34.72$34.72266
2022-07-14$34.72$34.72254
2022-07-13$36.96$36.9680
2022-07-12$36.29$36.29909
2022-07-11$34.72$34.72371
2022-07-08$35.73$35.73445
2022-07-07$36.40$36.40138
2022-07-06$37.07$37.07105
2022-07-05$37.97$37.97611
2022-07-01$38.42$38.42268
2022-06-30$40.54$40.54602
2022-06-29$42.00$42.00921
2022-06-28$43.96$43.96163
2022-06-27$44.24$44.24182
2022-06-24$45.36$45.3634
2022-06-23$44.24$44.24143
2022-06-22$44.80$44.8029
2022-06-21$46.48$46.48229
2022-06-17$43.12$43.12180
2022-06-16$43.68$43.68836
2022-06-15$44.80$44.8077
2022-06-14$40.88$40.88189
2022-06-13$43.34$43.34513
2022-06-10$45.36$45.36180
2022-06-09$45.36$45.3679
2022-06-08$45.36$45.36254
2022-06-07$44.80$44.80280
2022-06-06$44.80$44.80434
2022-06-03$47.60$47.60384
2022-06-02$45.36$45.36245
2022-06-01$45.36$45.36598
2022-05-31$42.62$42.62455
2022-05-27$42.78$42.781,096
2022-05-26$44.24$44.24155
2022-05-25$43.12$43.12438
2022-05-24$39.65$39.65316
2022-05-23$42.22$42.22163
2022-05-20$42.67$42.67136
2022-05-19$42.34$42.34179
2022-05-18$44.80$44.803,000
2022-05-17$39.98$39.981,248
2022-05-16$38.92$38.92875
2022-05-13$36.68$36.68959
2022-05-12$36.29$36.291,182
2022-05-11$36.90$36.901,209
2022-05-10$40.88$40.88718
2022-05-09$40.04$40.041,936
2022-05-06$44.46$44.46250
2022-05-05$44.69$44.69238
2022-05-04$44.80$44.80521
2022-05-03$45.25$45.25421
2022-05-02$45.19$45.19564
2022-04-29$45.81$45.81677
2022-04-28$45.08$45.08754
2022-04-27$47.32$47.321,327
2022-04-26$46.09$46.09384
2022-04-25$48.89$48.89323
2022-04-22$49.50$49.50650
2022-04-21$50.34$50.34666
2022-04-20$48.55$48.552,630
2022-04-19$44.35$44.35813
2022-04-18$46.48$46.48696
2022-04-14$46.48$46.48441
2022-04-13$45.58$45.58416
2022-04-12$44.46$44.46532
2022-04-11$43.40$43.402,934
2022-04-08$46.59$46.591,575
2022-04-07$46.48$46.48989
2022-04-06$47.66$47.66309
2022-04-05$49.84$49.841,563
2022-04-04$51.24$51.241,414
2022-04-01$47.88$47.881,696
2022-03-31$45.64$45.641,413
2022-03-30$47.60$47.601,446
2022-03-29$47.60$47.60839
2022-03-28$48.16$48.16611
2022-03-25$48.89$48.891,877
2022-03-24$49.78$49.782,661
2022-03-23$50.85$50.853,413
2022-03-22$54.88$54.885,427
2022-03-21$49.39$49.39659
2022-03-18$50.62$50.621,621
2022-03-17$47.04$47.041,163
2022-03-16$45.92$45.921,114
2022-03-15$45.47$45.471,259
2022-03-14$44.91$44.91825
2022-03-11$46.54$46.541,277
2022-03-10$48.33$48.331,161
2022-03-09$49.28$49.281,836
2022-03-08$48.16$48.162,134
2022-03-07$47.04$47.041,529
2022-03-04$48.16$48.161,575
2022-03-03$51.52$51.52939
2022-03-02$53.37$53.371,066
2022-03-01$53.20$53.201,423
2022-02-28$52.08$52.08905
2022-02-25$50.29$50.291,243
2022-02-24$51.63$51.633,098
2022-02-23$54.04$54.04704
2022-02-22$54.82$54.823,059
2022-02-18$57.68$57.681,673
2022-02-17$60.31$60.31859
2022-02-16$63.28$63.28596
2022-02-15$63.28$63.281,936
2022-02-14$61.60$61.601,991
2022-02-11$64.40$64.401,346
2022-02-10$64.40$64.403,313
2022-02-09$63.84$63.842,189
2022-02-08$63.28$63.28739
2022-02-07$64.96$64.961,386
2022-02-04$64.40$64.40973
2022-02-03$63.28$63.28759
2022-02-02$67.20$67.201,238
2022-02-01$68.32$68.322,348
2022-01-31$63.28$63.285,611
2022-01-28$61.60$61.601,470
2022-01-27$61.10$61.103,896
2022-01-26$59.92$59.922,223
2022-01-25$60.48$60.485,036
2022-01-24$54.32$54.324,246
2022-01-21$59.92$59.925,014
2022-01-20$66.64$66.642,205
2022-01-19$67.76$67.763,470
2022-01-18$71.12$71.122,539
2022-01-14$75.60$75.601,032
2022-01-13$76.16$76.161,679
2022-01-12$77.28$77.282,391
2022-01-11$80.64$80.64805
2022-01-10$80.08$80.081,809
2022-01-07$80.64$80.643,688
2022-01-06$78.23$78.231,786
2022-01-05$78.96$78.961,207
2022-01-04$81.20$81.204,798
2022-01-03$78.40$78.401,777