NASDAQ:PTGX | Historical Stock Price | Protagonist Therapeutics, Inc

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
2016-08-11 to 2026-09-04
Data captured

Stock Price Chart

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

$5.13$10.24$20.45$40.84$81.56$162.862016-08-112026-08-27

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

View year

Historical Stock Price — 2016

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2016-12-30$21.99$21.9938,300
2016-12-29$22.19$22.1919,900
2016-12-28$21.90$21.9053,600
2016-12-27$21.97$21.9731,300
2016-12-23$21.94$21.9434,100
2016-12-22$21.80$21.8046,700
2016-12-21$21.88$21.8861,200
2016-12-20$22.84$22.84135,400
2016-12-19$22.72$22.7247,300
2016-12-16$22.89$22.89203,800
2016-12-15$21.31$21.3152,200
2016-12-14$20.29$20.2934,500
2016-12-13$20.09$20.0939,700
2016-12-12$20.20$20.2048,500
2016-12-09$22.00$22.0032,300
2016-12-08$22.91$22.9157,400
2016-12-07$25.58$25.5835,000
2016-12-06$25.88$25.8828,300
2016-12-05$26.24$26.2454,800
2016-12-02$24.87$24.8742,300
2016-12-01$24.26$24.2635,800
2016-11-30$24.95$24.9520,700
2016-11-29$24.99$24.9917,200
2016-11-28$25.01$25.0125,600
2016-11-25$25.49$25.492,700
2016-11-23$25.12$25.1219,200
2016-11-22$25.22$25.2233,400
2016-11-21$25.20$25.2041,700
2016-11-18$25.13$25.1347,800
2016-11-17$24.99$24.9956,000
2016-11-16$23.91$23.9137,500
2016-11-15$23.90$23.9030,100
2016-11-14$24.16$24.1631,800
2016-11-11$24.30$24.3078,400
2016-11-10$23.36$23.3682,500
2016-11-09$21.80$21.8048,300
2016-11-08$19.90$19.9036,300
2016-11-07$18.72$18.7220,100
2016-11-04$18.27$18.2730,400
2016-11-03$17.93$17.9333,700
2016-11-02$18.00$18.0010,900
2016-11-01$17.87$17.8725,900
2016-10-31$18.80$18.80109,800
2016-10-28$19.67$19.6729,600
2016-10-27$20.32$20.3262,800
2016-10-26$22.06$22.0639,200
2016-10-25$22.28$22.2825,300
2016-10-24$22.16$22.1625,200
2016-10-21$22.10$22.1019,200
2016-10-20$21.99$21.9924,600
2016-10-19$22.41$22.4121,900
2016-10-18$22.41$22.4128,600
2016-10-17$22.43$22.4349,900
2016-10-14$21.46$21.4633,800
2016-10-13$21.40$21.4025,500
2016-10-12$21.42$21.4226,600
2016-10-11$21.58$21.5852,000
2016-10-10$21.33$21.3391,600
2016-10-07$21.19$21.1962,600
2016-10-06$20.86$20.86231,600
2016-10-05$21.72$21.72142,700
2016-10-04$21.83$21.8393,600
2016-10-03$21.21$21.21165,100
2016-09-30$21.13$21.13805,700
2016-09-29$20.76$20.76270,000
2016-09-28$20.94$20.94219,400
2016-09-27$20.99$20.99538,600
2016-09-26$18.15$18.15144,900
2016-09-23$17.00$17.0059,400
2016-09-22$16.05$16.0535,100
2016-09-21$15.82$15.8269,400
2016-09-20$15.60$15.6079,700
2016-09-19$15.10$15.10161,500
2016-09-16$14.33$14.33395,100
2016-09-15$13.32$13.3263,700
2016-09-14$13.10$13.10100,800
2016-09-13$12.88$12.88211,700
2016-09-12$12.40$12.4049,300
2016-09-09$12.40$12.4068,600
2016-09-08$12.57$12.5772,500
2016-09-07$12.63$12.63122,000
2016-09-06$12.54$12.54116,200
2016-09-02$12.08$12.0822,800
2016-09-01$12.09$12.0941,700
2016-08-31$12.01$12.01225,000
2016-08-30$10.94$10.94117,800
2016-08-29$10.62$10.62179,700
2016-08-26$10.44$10.44115,200
2016-08-25$10.71$10.7157,900
2016-08-24$10.94$10.9466,600
2016-08-23$11.48$11.4885,500
2016-08-22$11.60$11.6035,900
2016-08-19$11.80$11.80187,300
2016-08-18$11.65$11.6563,300
2016-08-17$11.74$11.74141,500
2016-08-16$11.46$11.4652,100
2016-08-15$11.50$11.5090,900
2016-08-12$11.57$11.57120,000
2016-08-11$11.70$11.701,632,000