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 — 2017

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2017-12-29$37.49$37.49365,500
2017-12-28$38.00$38.00254,800
2017-12-27$37.23$37.23207,500
2017-12-26$36.84$36.84235,100
2017-12-22$36.77$36.77314,900
2017-12-21$37.07$37.07405,600
2017-12-20$36.14$36.14349,100
2017-12-19$35.61$35.61457,200
2017-12-18$35.44$35.44385,400
2017-12-15$38.54$38.54728,600
2017-12-14$36.59$36.59314,800
2017-12-13$38.12$38.12478,100
2017-12-12$37.96$37.96385,000
2017-12-11$40.04$40.04217,500
2017-12-08$41.01$41.01219,400
2017-12-07$40.60$40.60543,400
2017-12-06$39.17$39.17521,900
2017-12-05$41.99$41.99301,100
2017-12-04$44.43$44.43216,500
2017-12-01$47.32$47.32356,300
2017-11-30$46.49$46.49382,900
2017-11-29$44.67$44.67528,900
2017-11-28$45.25$45.25268,400
2017-11-27$46.00$46.00173,900
2017-11-24$46.03$46.0389,600
2017-11-22$45.85$45.85336,300
2017-11-21$45.97$45.97748,400
2017-11-20$44.60$44.601,241,600
2017-11-17$51.93$51.93438,600
2017-11-16$54.81$54.81405,500
2017-11-15$55.12$55.12211,700
2017-11-14$56.13$56.13347,000
2017-11-13$56.83$56.83345,400
2017-11-10$56.63$56.63370,700
2017-11-09$55.49$55.49481,200
2017-11-08$56.24$56.241,695,900
2017-11-07$60.96$60.96253,500
2017-11-06$61.93$61.93220,900
2017-11-03$62.30$62.30510,200
2017-11-02$61.22$61.22587,100
2017-11-01$57.29$57.29396,300
2017-10-31$58.05$58.05189,400
2017-10-30$57.89$57.89204,800
2017-10-27$58.44$58.44267,100
2017-10-26$56.45$56.45214,200
2017-10-25$56.30$56.30248,300
2017-10-24$56.58$56.58315,800
2017-10-23$57.95$57.95175,600
2017-10-20$57.91$57.91171,100
2017-10-19$58.53$58.53219,700
2017-10-18$60.36$60.36188,000
2017-10-17$60.30$60.30125,100
2017-10-16$60.32$60.32130,700
2017-10-13$60.75$60.75161,100
2017-10-12$60.06$60.06230,300
2017-10-11$61.06$61.06307,700
2017-10-10$61.80$61.80124,600
2017-10-09$61.44$61.44177,500
2017-10-06$61.99$61.99158,400
2017-10-05$62.60$62.60172,100
2017-10-04$63.73$63.73174,300
2017-10-03$63.76$63.76150,600
2017-10-02$63.27$63.27338,500
2017-09-29$64.77$64.77645,100
2017-09-28$67.75$67.75500,900
2017-09-27$67.62$67.62493,200
2017-09-26$63.73$63.73140,000
2017-09-25$64.37$64.37198,400
2017-09-22$64.76$64.76159,800
2017-09-21$65.05$65.05123,600
2017-09-20$65.26$65.26171,900
2017-09-19$64.62$64.62111,100
2017-09-18$64.63$64.63121,300
2017-09-15$64.75$64.75362,900
2017-09-14$62.73$62.73150,200
2017-09-13$61.71$61.71135,300
2017-09-12$62.38$62.38147,600
2017-09-11$62.44$62.44305,800
2017-09-08$61.24$61.24187,100
2017-09-07$60.76$60.76191,400
2017-09-06$61.51$61.51183,300
2017-09-05$62.72$62.72221,400
2017-09-01$62.10$62.10227,400
2017-08-31$61.44$61.44275,700
2017-08-30$58.92$58.92208,700
2017-08-29$57.70$57.70130,700
2017-08-28$58.01$58.01230,300
2017-08-25$55.74$55.7488,200
2017-08-24$56.16$56.16263,300
2017-08-23$56.81$56.81155,100
2017-08-22$56.24$56.24246,700
2017-08-21$53.83$53.83353,800
2017-08-18$54.59$54.59343,900
2017-08-17$55.23$55.23209,900
2017-08-16$57.69$57.69136,900
2017-08-15$58.12$58.12163,300
2017-08-14$58.38$58.38233,400
2017-08-11$57.16$57.16267,100
2017-08-10$55.64$55.64385,300
2017-08-09$58.96$58.96306,200
2017-08-08$61.69$61.69265,300
2017-08-07$61.54$61.54184,500
2017-08-04$59.87$59.87161,400
2017-08-03$58.89$58.89202,600
2017-08-02$60.11$60.11225,100
2017-08-01$60.45$60.45174,400
2017-07-31$61.76$61.76115,800
2017-07-28$63.46$63.46240,800
2017-07-27$62.57$62.57270,400
2017-07-26$65.64$65.64157,300
2017-07-25$65.63$65.63410,100
2017-07-24$67.24$67.24272,300
2017-07-21$67.24$67.24469,200
2017-07-20$67.54$67.54294,700
2017-07-19$66.76$66.76431,400
2017-07-18$64.46$64.46361,500
2017-07-17$64.65$64.65374,100
2017-07-14$63.66$63.66292,600
2017-07-13$62.29$62.29249,800
2017-07-12$60.85$60.85391,700
2017-07-11$59.51$59.51415,700
2017-07-10$58.23$58.23224,300
2017-07-07$58.89$58.89146,400
2017-07-06$57.51$57.51549,300
2017-07-05$57.58$57.58249,000
2017-07-03$55.55$55.55168,300
2017-06-30$54.12$54.12339,800
2017-06-29$54.45$54.451,883,200
2017-06-28$55.15$55.15348,700
2017-06-27$53.03$53.03253,600
2017-06-26$57.50$57.50288,900
2017-06-23$58.73$58.73675,400
2017-06-22$56.99$56.99359,700
2017-06-21$56.61$56.61384,700
2017-06-20$53.24$53.24368,100
2017-06-19$54.19$54.19247,100
2017-06-16$52.52$52.52266,900
2017-06-15$54.24$54.24166,400
2017-06-14$54.55$54.55221,200
2017-06-13$53.27$53.27168,600
2017-06-12$52.19$52.19242,000
2017-06-09$51.32$51.32235,800
2017-06-08$50.56$50.56166,100
2017-06-07$51.31$51.31198,000
2017-06-06$50.99$50.99124,300
2017-06-05$51.68$51.68159,000
2017-06-02$52.42$52.42244,800
2017-06-01$50.72$50.72304,100
2017-05-31$51.01$51.01297,700
2017-05-30$50.30$50.30261,400
2017-05-26$51.88$51.88255,300
2017-05-25$54.85$54.85130,500
2017-05-24$56.23$56.23147,400
2017-05-23$55.69$55.69199,900
2017-05-22$56.10$56.10236,600
2017-05-19$57.45$57.45354,600
2017-05-18$56.23$56.23312,400
2017-05-17$54.20$54.20249,400
2017-05-16$56.37$56.37193,300
2017-05-15$55.24$55.24249,500
2017-05-12$54.96$54.96310,400
2017-05-11$51.80$51.80219,500
2017-05-10$54.47$54.47437,900
2017-05-09$50.77$50.77291,500
2017-05-08$49.00$49.00268,000
2017-05-05$51.25$51.25177,800
2017-05-04$52.26$52.26205,300
2017-05-03$53.28$53.28174,300
2017-05-02$53.84$53.84226,700
2017-05-01$55.15$55.15356,900
2017-04-28$54.13$54.13589,100
2017-04-27$54.01$54.01173,600
2017-04-26$53.95$53.95294,000
2017-04-25$54.89$54.89269,400
2017-04-24$54.08$54.08253,000
2017-04-21$52.95$52.95220,900
2017-04-20$53.91$53.91206,800
2017-04-19$52.45$52.45191,300
2017-04-18$51.31$51.31168,600
2017-04-17$52.51$52.51155,700
2017-04-13$52.54$52.54371,700
2017-04-12$50.61$50.61282,800
2017-04-11$49.89$49.89263,600
2017-04-10$49.34$49.34224,400
2017-04-07$49.42$49.42230,800
2017-04-06$49.85$49.85375,300
2017-04-05$50.70$50.70325,200
2017-04-04$53.70$53.70311,300
2017-04-03$54.63$54.63464,800
2017-03-31$55.79$55.79335,900
2017-03-30$55.43$55.43200,000
2017-03-29$55.99$55.99250,000
2017-03-28$55.01$55.01227,500
2017-03-27$54.61$54.61262,600
2017-03-24$52.50$52.50181,000
2017-03-23$51.76$51.76169,900
2017-03-22$51.73$51.73285,700
2017-03-21$50.79$50.79405,500
2017-03-20$54.34$54.34117,900
2017-03-17$53.89$53.89576,200
2017-03-16$54.19$54.19224,100
2017-03-15$55.24$55.24340,100
2017-03-14$53.60$53.60389,400
2017-03-13$55.40$55.40440,400
2017-03-10$54.95$54.95457,200
2017-03-09$50.63$50.63241,200
2017-03-08$50.89$50.89307,100
2017-03-07$51.85$51.85599,400
2017-03-06$54.86$54.86348,700
2017-03-03$55.81$55.81723,300
2017-03-02$60.07$60.07443,300
2017-03-01$60.33$60.33609,300
2017-02-28$58.65$58.65477,700
2017-02-27$58.01$58.01311,700
2017-02-24$53.45$53.45165,600
2017-02-23$54.36$54.36334,000
2017-02-22$55.00$55.00227,700
2017-02-21$55.00$55.00289,500
2017-02-17$55.22$55.22389,700
2017-02-16$54.05$54.05278,000
2017-02-15$52.87$52.87736,200
2017-02-14$52.04$52.04319,300
2017-02-13$52.15$52.15188,900
2017-02-10$52.01$52.01162,200
2017-02-09$51.19$51.19331,000
2017-02-08$49.50$49.50217,500
2017-02-07$50.05$50.05150,500
2017-02-06$50.97$50.97118,400
2017-02-03$50.91$50.91298,600
2017-02-02$49.88$49.88311,600
2017-02-01$49.58$49.58287,200
2017-01-31$48.96$48.96260,900
2017-01-30$46.37$46.37231,500
2017-01-27$48.55$48.55274,900
2017-01-26$47.39$47.39193,500
2017-01-25$49.44$49.44161,000
2017-01-24$49.34$49.34327,700
2017-01-23$49.74$49.74253,300
2017-01-20$49.78$49.78373,100
2017-01-19$48.88$48.88276,800
2017-01-18$47.81$47.81340,800
2017-01-17$47.39$47.39396,400
2017-01-13$50.51$50.51226,400
2017-01-12$50.52$50.52174,700
2017-01-11$49.81$49.81344,800
2017-01-10$53.00$53.00346,300
2017-01-09$54.32$54.32406,200
2017-01-06$55.38$55.38381,800
2017-01-05$53.28$53.28188,800
2017-01-04$52.53$52.53270,200
2017-01-03$49.79$49.79299,100