NASDAQ:PRTA | Historical Stock Price | PROTHENA CORP PUBLIC LTD CO

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
2012-12-18 to 2026-09-04
Data captured

Stock Price Chart

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

$4.47$7.97$14.21$25.36$45.25$80.732012-12-212026-08-27

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 volumeOpen priceExchange Volume
2022-12-30$60.25$60.25387,500
2022-12-29$59.68$59.68527,300
2022-12-28$57.93$57.93604,400
2022-12-27$56.63$56.63388,100
2022-12-23$57.82$57.82572,800
2022-12-22$58.76$58.76446,900
2022-12-21$59.00$59.00440,100
2022-12-20$58.02$58.02605,200
2022-12-19$56.54$56.54792,200
2022-12-16$56.84$56.841,057,400
2022-12-15$58.52$58.521,504,500
2022-12-14$57.97$57.971,034,700
2022-12-13$63.23$63.23316,300
2022-12-12$61.55$61.55533,700
2022-12-09$58.36$58.36360,000
2022-12-08$59.17$59.17300,700
2022-12-07$59.58$59.58444,400
2022-12-06$58.55$58.55349,200
2022-12-05$60.39$60.39859,300
2022-12-02$65.00$65.00697,400
2022-12-01$60.89$60.89705,300
2022-11-30$62.51$62.51893,600
2022-11-29$58.12$58.12342,100
2022-11-28$56.71$56.71393,300
2022-11-25$61.21$61.2166,100
2022-11-23$61.95$61.95293,200
2022-11-22$60.82$60.82249,600
2022-11-21$60.08$60.08556,200
2022-11-18$58.12$58.12560,800
2022-11-17$56.85$56.85305,200
2022-11-16$58.58$58.58850,000
2022-11-15$62.17$62.17795,400
2022-11-14$60.82$60.82944,900
2022-11-11$56.89$56.89488,900
2022-11-10$57.12$57.12920,100
2022-11-09$52.05$52.05446,900
2022-11-08$55.92$55.92386,400
2022-11-07$55.78$55.78373,800
2022-11-04$54.56$54.56660,200
2022-11-03$57.69$57.69494,600
2022-11-02$59.84$59.84565,000
2022-11-01$63.45$63.45652,600
2022-10-31$61.44$61.44521,000
2022-10-28$62.24$62.24621,500
2022-10-27$59.70$59.70668,500
2022-10-26$60.28$60.28434,800
2022-10-25$60.35$60.35450,500
2022-10-24$59.78$59.78622,700
2022-10-21$58.22$58.22654,100
2022-10-20$56.06$56.06379,100
2022-10-19$55.50$55.50668,300
2022-10-18$59.00$59.00904,600
2022-10-17$58.08$58.08741,600
2022-10-14$54.85$54.85655,200
2022-10-13$54.00$54.00631,400
2022-10-12$52.39$52.39455,100
2022-10-11$53.35$53.35662,100
2022-10-10$55.64$55.64419,700
2022-10-07$56.24$56.24565,900
2022-10-06$58.57$58.57536,900
2022-10-05$58.11$58.11973,500
2022-10-04$57.45$57.451,498,100
2022-10-03$61.82$61.821,087,400
2022-09-30$60.63$60.631,776,100
2022-09-29$59.47$59.473,948,900
2022-09-28$58.00$58.0010,948,200
2022-09-27$30.93$30.93555,500
2022-09-26$29.01$29.01369,400
2022-09-23$30.74$30.74582,500
2022-09-22$30.04$30.04717,700
2022-09-21$31.31$31.31808,700
2022-09-20$30.61$30.61371,400
2022-09-19$30.36$30.36310,600
2022-09-16$29.44$29.441,010,400
2022-09-15$30.00$30.00382,600
2022-09-14$29.37$29.37670,200
2022-09-13$28.00$28.00841,400
2022-09-12$29.65$29.65330,300
2022-09-09$29.05$29.05984,700
2022-09-08$29.09$29.09546,600
2022-09-07$26.77$26.77579,500
2022-09-06$25.16$25.16426,900
2022-09-02$26.91$26.91577,700
2022-09-01$27.53$27.53419,300
2022-08-31$27.57$27.57365,500
2022-08-30$27.99$27.99935,200
2022-08-29$28.30$28.30316,100
2022-08-26$27.98$27.98389,300
2022-08-25$30.28$30.28308,600
2022-08-24$31.11$31.11293,100
2022-08-23$30.25$30.25269,000
2022-08-22$29.84$29.84199,300
2022-08-19$30.41$30.41281,500
2022-08-18$31.37$31.37235,800
2022-08-17$31.61$31.61179,000
2022-08-16$32.12$32.12233,000
2022-08-15$32.66$32.66194,200
2022-08-12$32.19$32.19346,700
2022-08-11$31.28$31.28435,600
2022-08-10$31.78$31.78404,000
2022-08-09$30.28$30.28335,600
2022-08-08$33.01$33.01294,100
2022-08-05$33.11$33.11238,700
2022-08-04$32.26$32.26370,500
2022-08-03$30.92$30.92213,600
2022-08-02$29.74$29.74168,000
2022-08-01$29.70$29.70278,700
2022-07-29$31.06$31.06184,800
2022-07-28$31.73$31.73174,400
2022-07-27$31.85$31.85229,600
2022-07-26$31.01$31.01290,900
2022-07-25$30.88$30.88209,900
2022-07-22$31.01$31.01593,700
2022-07-21$32.86$32.86211,600
2022-07-20$32.54$32.54374,300
2022-07-19$31.35$31.35286,200
2022-07-18$30.00$30.00273,900
2022-07-15$30.71$30.71209,000
2022-07-14$30.50$30.50289,600
2022-07-13$30.49$30.49238,800
2022-07-12$30.15$30.15176,200
2022-07-11$29.96$29.96288,100
2022-07-08$31.49$31.49202,200
2022-07-07$30.72$30.72289,600
2022-07-06$29.60$29.60305,600
2022-07-05$29.69$29.69325,200
2022-07-01$27.89$27.89345,100
2022-06-30$27.15$27.15375,300
2022-06-29$26.81$26.81200,200
2022-06-28$26.77$26.77219,900
2022-06-27$27.61$27.61244,700
2022-06-24$27.77$27.77709,900
2022-06-23$27.54$27.54372,300
2022-06-22$25.94$25.94295,700
2022-06-21$25.59$25.59420,900
2022-06-17$23.87$23.871,188,500
2022-06-16$22.86$22.86545,500
2022-06-15$23.68$23.68424,200
2022-06-14$22.93$22.93412,000
2022-06-13$22.73$22.73486,100
2022-06-10$24.59$24.59383,700
2022-06-09$26.92$26.92272,400
2022-06-08$28.15$28.15249,500
2022-06-07$28.44$28.44337,400
2022-06-06$26.20$26.20337,900
2022-06-03$27.50$27.50470,100
2022-06-02$26.72$26.72297,700
2022-06-01$26.52$26.52276,100
2022-05-31$27.23$27.23573,800
2022-05-27$28.19$28.19343,700
2022-05-26$26.60$26.60264,000
2022-05-25$25.75$25.75321,200
2022-05-24$25.95$25.95812,600
2022-05-23$26.43$26.43173,400
2022-05-20$27.08$27.08331,800
2022-05-19$26.20$26.20277,000
2022-05-18$25.60$25.60556,900
2022-05-17$27.95$27.95393,900
2022-05-16$26.01$26.01507,300
2022-05-13$26.30$26.30663,900
2022-05-12$24.61$24.61553,000
2022-05-11$24.90$24.90798,900
2022-05-10$26.97$26.97513,000
2022-05-09$27.05$27.05922,900
2022-05-06$29.79$29.79728,700
2022-05-05$29.02$29.02574,300
2022-05-04$31.26$31.26409,000
2022-05-03$29.77$29.77244,200
2022-05-02$30.63$30.63399,700
2022-04-29$29.16$29.16301,800
2022-04-28$29.98$29.98836,500
2022-04-27$27.13$27.13385,000
2022-04-26$28.58$28.58871,800
2022-04-25$33.25$33.25640,200
2022-04-22$33.33$33.33412,400
2022-04-21$34.86$34.86385,900
2022-04-20$35.78$35.78292,400
2022-04-19$34.94$34.94251,100
2022-04-18$33.85$33.85287,700
2022-04-14$36.15$36.15317,200
2022-04-13$37.50$37.50396,100
2022-04-12$35.42$35.42346,000
2022-04-11$34.44$34.44396,800
2022-04-08$36.55$36.55336,400
2022-04-07$37.70$37.70330,200
2022-04-06$38.60$38.60296,300
2022-04-05$37.95$37.95327,300
2022-04-04$39.98$39.98368,000
2022-04-01$39.06$39.06294,100
2022-03-31$36.57$36.57243,800
2022-03-30$36.52$36.52277,300
2022-03-29$38.18$38.18292,200
2022-03-28$36.96$36.96292,300
2022-03-25$36.95$36.95248,700
2022-03-24$37.83$37.83251,800
2022-03-23$36.30$36.30350,800
2022-03-22$37.75$37.75574,500
2022-03-21$37.66$37.66284,900
2022-03-18$39.16$39.16609,200
2022-03-17$37.22$37.22287,400
2022-03-16$35.71$35.71308,300
2022-03-15$33.33$33.33257,800
2022-03-14$31.94$31.94452,000
2022-03-11$33.44$33.44307,900
2022-03-10$34.01$34.01343,700
2022-03-09$34.01$34.01508,600
2022-03-08$30.71$30.71503,800
2022-03-07$30.27$30.27361,500
2022-03-04$30.60$30.60414,200
2022-03-03$32.38$32.38623,700
2022-03-02$33.44$33.44305,300
2022-03-01$33.41$33.41652,100
2022-02-28$34.60$34.60399,700
2022-02-25$35.32$35.32399,200
2022-02-24$34.58$34.58604,400
2022-02-23$32.45$32.45478,600
2022-02-22$34.15$34.15481,900
2022-02-18$33.67$33.67747,500
2022-02-17$35.06$35.06596,200
2022-02-16$37.26$37.26276,900
2022-02-15$37.47$37.47305,700
2022-02-14$35.45$35.45315,800
2022-02-11$35.51$35.51356,200
2022-02-10$35.98$35.98564,600
2022-02-09$36.65$36.65397,900
2022-02-08$34.79$34.79307,200
2022-02-07$34.71$34.71348,200
2022-02-04$33.72$33.72452,700
2022-02-03$32.36$32.36474,400
2022-02-02$32.73$32.73558,200
2022-02-01$34.66$34.66434,100
2022-01-31$34.08$34.08494,000
2022-01-28$32.69$32.69455,800
2022-01-27$31.45$31.45453,100
2022-01-26$33.73$33.73451,000
2022-01-25$34.31$34.31377,200
2022-01-24$35.47$35.47612,000
2022-01-21$35.23$35.23484,900
2022-01-20$35.43$35.43462,800
2022-01-19$36.13$36.13453,900
2022-01-18$37.01$37.01601,700
2022-01-14$39.53$39.53649,600
2022-01-13$37.24$37.24725,400
2022-01-12$37.47$37.471,488,700
2022-01-11$42.12$42.12285,500
2022-01-10$41.86$41.86338,400
2022-01-07$41.19$41.19300,800
2022-01-06$43.64$43.64479,600
2022-01-05$44.73$44.73605,100
2022-01-04$46.82$46.82320,500
2022-01-03$49.22$49.22361,700