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.

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Historical Stock Price — 2016

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2016-12-30$49.19$49.19184,400——
2016-12-29$49.59$49.59245,000——
2016-12-28$49.01$49.01267,600——
2016-12-27$50.52$50.52220,600——
2016-12-23$50.42$50.42310,900——
2016-12-22$48.16$48.16353,800——
2016-12-21$50.27$50.27420,800——
2016-12-20$51.84$51.84308,100——
2016-12-19$51.17$51.17293,300——
2016-12-16$53.28$53.28457,300——
2016-12-15$52.46$52.46287,200——
2016-12-14$52.78$52.78277,900——
2016-12-13$52.77$52.77193,500——
2016-12-12$53.91$53.91177,300——
2016-12-09$54.69$54.69447,400——
2016-12-08$54.84$54.84352,000——
2016-12-07$53.19$53.19464,100——
2016-12-06$56.02$56.02626,200——
2016-12-05$54.75$54.75529,500——
2016-12-02$53.88$53.88433,800——
2016-12-01$54.64$54.64516,300——
2016-11-30$59.02$59.02324,700——
2016-11-29$60.19$60.19304,400——
2016-11-28$60.49$60.49546,400——
2016-11-25$64.26$64.26168,600——
2016-11-23$63.23$63.23588,800——
2016-11-22$59.91$59.91461,900——
2016-11-21$65.48$65.48275,200——
2016-11-18$64.56$64.56261,200——
2016-11-17$64.82$64.82410,900——
2016-11-16$64.36$64.36466,800——
2016-11-15$66.35$66.35521,000——
2016-11-14$67.64$67.64545,700——
2016-11-11$63.60$63.60565,400——
2016-11-10$59.79$59.79940,400——
2016-11-09$56.10$56.10829,300——
2016-11-08$47.55$47.55340,100——
2016-11-07$46.85$46.85631,000——
2016-11-04$43.86$43.86457,300——
2016-11-03$40.72$40.72530,800——
2016-11-02$45.13$45.13529,100——
2016-11-01$47.93$47.93385,900——
2016-10-31$47.82$47.82521,100——
2016-10-28$51.55$51.55267,700——
2016-10-27$51.29$51.29567,000——
2016-10-26$51.43$51.43326,700——
2016-10-25$52.43$52.43214,200——
2016-10-24$53.27$53.27246,700——
2016-10-21$54.47$54.47174,900——
2016-10-20$55.20$55.20348,700——
2016-10-19$53.20$53.20236,400——
2016-10-18$53.69$53.69369,500——
2016-10-17$51.80$51.80485,800——
2016-10-14$53.55$53.55406,400——
2016-10-13$54.85$54.85388,900——
2016-10-12$54.36$54.36370,900——
2016-10-11$58.65$58.65362,900——
2016-10-10$62.64$62.64285,800——
2016-10-07$61.02$61.02204,200——
2016-10-06$61.29$61.29318,500——
2016-10-05$62.92$62.92491,700——
2016-10-04$61.81$61.81346,700——
2016-10-03$59.76$59.76305,700——
2016-09-30$59.97$59.97325,600——
2016-09-29$58.14$58.14270,100——
2016-09-28$61.37$61.37238,400——
2016-09-27$63.01$63.01241,300——
2016-09-26$62.00$62.00286,600——
2016-09-23$62.54$62.54247,900——
2016-09-22$63.60$63.60304,300——
2016-09-21$62.07$62.07306,000——
2016-09-20$61.42$61.42329,500——
2016-09-19$61.10$61.10553,100——
2016-09-16$58.43$58.43422,700——
2016-09-15$55.80$55.80256,200——
2016-09-14$53.86$53.86373,600——
2016-09-13$53.20$53.20298,700——
2016-09-12$54.97$54.97279,800——
2016-09-09$51.96$51.96518,900——
2016-09-08$55.35$55.35284,100——
2016-09-07$55.33$55.33406,400——
2016-09-06$54.51$54.51371,100——
2016-09-02$52.19$52.19280,600——
2016-09-01$52.21$52.21585,800——
2016-08-31$49.98$49.98332,000——
2016-08-30$50.52$50.52172,200——
2016-08-29$50.07$50.07293,700——
2016-08-26$50.03$50.03339,000——
2016-08-25$49.38$49.38528,300——
2016-08-24$50.02$50.02686,900——
2016-08-23$54.19$54.19478,600——
2016-08-22$54.34$54.34357,500——
2016-08-19$54.94$54.94202,000——
2016-08-18$55.33$55.33207,900——
2016-08-17$55.51$55.51212,600——
2016-08-16$55.89$55.89282,300——
2016-08-15$58.20$58.20205,000——
2016-08-12$57.79$57.79280,100——
2016-08-11$56.72$56.72612,500——
2016-08-10$55.00$55.00266,900——
2016-08-09$57.10$57.10190,900——
2016-08-08$56.68$56.68353,600——
2016-08-05$57.98$57.98356,600——
2016-08-04$58.42$58.42363,000——
2016-08-03$58.27$58.27438,000——
2016-08-02$55.61$55.61258,200——
2016-08-01$56.66$56.66344,100——
2016-07-29$55.05$55.05267,800——
2016-07-28$55.41$55.41331,200——
2016-07-27$55.46$55.46576,500——
2016-07-26$51.61$51.61436,000——
2016-07-25$52.22$52.22256,600——
2016-07-22$53.17$53.17452,700——
2016-07-21$53.35$53.35436,700——
2016-07-20$52.95$52.95790,100——
2016-07-19$48.74$48.74386,900——
2016-07-18$49.92$49.92433,400——
2016-07-15$48.76$48.76727,400——
2016-07-14$45.64$45.64638,300——
2016-07-13$43.46$43.46471,900——
2016-07-12$47.65$47.65731,100——
2016-07-11$44.37$44.37294,400——
2016-07-08$44.01$44.01356,000——
2016-07-07$41.73$41.73357,000——
2016-07-06$40.55$40.55461,100——
2016-07-05$39.54$39.54759,600——
2016-07-01$38.45$38.45475,500——
2016-06-30$34.96$34.96768,500——
2016-06-29$36.75$36.75477,100——
2016-06-28$36.19$36.19670,800——
2016-06-27$33.81$33.81515,000——
2016-06-24$35.48$35.481,150,700——
2016-06-23$40.55$40.55636,000——
2016-06-22$38.17$38.17925,000——
2016-06-21$39.20$39.20501,400——
2016-06-20$40.99$40.99565,200——
2016-06-17$39.86$39.861,197,800——
2016-06-16$43.73$43.73499,900——
2016-06-15$45.44$45.44527,700——
2016-06-14$44.85$44.85482,400——
2016-06-13$45.76$45.76448,800——
2016-06-10$46.52$46.52467,100——
2016-06-09$47.41$47.41345,500——
2016-06-08$49.01$49.01339,400——
2016-06-07$48.80$48.80325,200——
2016-06-06$50.42$50.42320,600——
2016-06-03$48.41$48.41532,800——
2016-06-02$50.32$50.32681,500——
2016-06-01$47.89$47.89367,400——
2016-05-31$48.54$48.54410,200——
2016-05-27$46.56$46.56318,900——
2016-05-26$46.06$46.06419,800——
2016-05-25$47.55$47.55543,200——
2016-05-24$46.00$46.00337,900——
2016-05-23$44.19$44.19554,700——
2016-05-20$42.50$42.50455,000——
2016-05-19$40.73$40.73254,500——
2016-05-18$41.77$41.77330,700——
2016-05-17$41.10$41.10336,400——
2016-05-16$42.99$42.99626,900——
2016-05-13$40.68$40.68512,800——
2016-05-12$38.43$38.43481,300——
2016-05-11$39.54$39.54459,500——
2016-05-10$40.74$40.74447,100——
2016-05-09$39.04$39.04364,600——
2016-05-06$38.32$38.32413,700——
2016-05-05$38.76$38.76479,100——
2016-05-04$38.59$38.59728,400——
2016-05-03$41.56$41.56352,100——
2016-05-02$43.87$43.87308,100——
2016-04-29$43.19$43.19437,500——
2016-04-28$43.04$43.04260,600——
2016-04-27$44.10$44.10328,000——
2016-04-26$44.60$44.60334,900——
2016-04-25$47.09$47.09322,100——
2016-04-22$48.10$48.10369,900——
2016-04-21$47.47$47.47335,500——
2016-04-20$45.07$45.07357,700——
2016-04-19$45.62$45.62283,900——
2016-04-18$47.64$47.64342,100——
2016-04-15$47.33$47.33308,100——
2016-04-14$47.16$47.16228,900——
2016-04-13$46.67$46.67331,300——
2016-04-12$45.37$45.37386,800——
2016-04-11$44.09$44.09391,400——
2016-04-08$44.71$44.71319,600——
2016-04-07$46.59$46.59456,500——
2016-04-06$46.88$46.88478,900——
2016-04-05$43.48$43.48321,300——
2016-04-04$44.17$44.17343,100——
2016-04-01$43.08$43.08460,800——
2016-03-31$41.16$41.16612,200——
2016-03-30$40.27$40.27435,100——
2016-03-29$42.21$42.21468,700——
2016-03-28$40.46$40.46429,700——
2016-03-24$40.31$40.31382,600——
2016-03-23$39.64$39.64668,500——
2016-03-22$41.16$41.16584,200——
2016-03-21$40.62$40.62824,000——
2016-03-18$37.32$37.321,531,800——
2016-03-17$34.13$34.13598,000——
2016-03-16$35.20$35.20484,200——
2016-03-15$35.58$35.58498,500——
2016-03-14$37.83$37.83464,400——
2016-03-11$35.01$35.01406,900——
2016-03-10$33.66$33.66438,200——
2016-03-09$36.04$36.04587,400——
2016-03-08$34.69$34.69393,900——
2016-03-07$37.90$37.90498,000——
2016-03-04$36.06$36.06471,700——
2016-03-03$36.00$36.00570,700——
2016-03-02$35.90$35.90722,500——
2016-03-01$34.44$34.44680,300——
2016-02-29$31.84$31.84616,600——
2016-02-26$34.76$34.76716,100——
2016-02-25$33.64$33.64797,300——
2016-02-24$34.61$34.61542,300——
2016-02-23$32.81$32.81517,300——
2016-02-22$34.91$34.91467,900——
2016-02-19$34.72$34.721,342,000——
2016-02-18$31.89$31.89910,300——
2016-02-17$34.25$34.25625,900——
2016-02-16$31.96$31.96425,700——
2016-02-12$31.51$31.51599,700——
2016-02-11$30.12$30.12579,000——
2016-02-10$31.97$31.97775,700——
2016-02-09$30.94$30.94517,900——
2016-02-08$31.71$31.711,065,500——
2016-02-05$34.27$34.271,388,700——
2016-02-04$36.77$36.77535,600——
2016-02-03$36.75$36.75878,200——
2016-02-02$37.14$37.14641,300——
2016-02-01$39.45$39.45666,900——
2016-01-29$38.95$38.951,196,500——
2016-01-28$37.07$37.07597,100——
2016-01-27$37.66$37.661,164,000——
2016-01-26$38.51$38.51980,800——
2016-01-25$40.97$40.97555,500——
2016-01-22$41.57$41.57604,000——
2016-01-21$40.10$40.10579,500——
2016-01-20$43.09$43.09682,500——
2016-01-19$43.35$43.35961,300——
2016-01-15$45.82$45.82818,000——
2016-01-14$46.51$46.51913,600——
2016-01-13$46.12$46.12596,500——
2016-01-12$51.56$51.56979,200——
2016-01-11$48.43$48.43671,600——
2016-01-08$53.87$53.87653,100——
2016-01-07$56.26$56.261,759,700——
2016-01-06$54.61$54.61665,000——
2016-01-05$58.99$58.99393,900——
2016-01-04$62.22$62.22440,600——