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 — 2023

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2023-12-29$36.34$36.34651,100
2023-12-28$38.47$38.471,105,300
2023-12-27$37.88$37.88886,700
2023-12-26$40.21$40.21553,300
2023-12-22$39.27$39.27520,800
2023-12-21$37.27$37.27465,400
2023-12-20$36.92$36.92632,800
2023-12-19$37.41$37.41552,200
2023-12-18$36.69$36.691,256,100
2023-12-15$39.99$39.992,208,600
2023-12-14$39.01$39.011,101,400
2023-12-13$38.44$38.441,212,200
2023-12-12$33.87$33.87930,600
2023-12-11$35.18$35.18734,200
2023-12-08$36.08$36.08560,700
2023-12-07$37.80$37.80859,100
2023-12-06$37.09$37.09553,600
2023-12-05$35.38$35.38376,300
2023-12-04$35.27$35.27471,500
2023-12-01$34.89$34.891,007,700
2023-11-30$32.58$32.58900,800
2023-11-29$33.00$33.00461,500
2023-11-28$32.48$32.48400,300
2023-11-27$32.50$32.50421,500
2023-11-24$33.19$33.19139,600
2023-11-22$32.73$32.73523,800
2023-11-21$32.31$32.31750,000
2023-11-20$34.10$34.10598,200
2023-11-17$34.06$34.06459,000
2023-11-16$34.49$34.49595,300
2023-11-15$35.08$35.08577,200
2023-11-14$35.32$35.32825,500
2023-11-13$33.25$33.25559,400
2023-11-10$33.32$33.32578,800
2023-11-09$32.76$32.76605,900
2023-11-08$35.31$35.31526,200
2023-11-07$36.42$36.42546,200
2023-11-06$35.73$35.73861,900
2023-11-03$37.55$37.55975,200
2023-11-02$34.96$34.96835,600
2023-11-01$36.68$36.68810,900
2023-10-31$36.46$36.46723,500
2023-10-30$35.47$35.47848,000
2023-10-27$35.75$35.751,543,400
2023-10-26$33.88$33.884,201,800
2023-10-25$39.68$39.68766,900
2023-10-24$42.25$42.25544,900
2023-10-23$42.26$42.26631,800
2023-10-20$43.79$43.79587,400
2023-10-19$44.60$44.60460,000
2023-10-18$44.91$44.91720,800
2023-10-17$47.13$47.131,231,600
2023-10-16$52.32$52.322,856,400
2023-10-13$44.08$44.08558,700
2023-10-12$45.92$45.92607,200
2023-10-11$47.17$47.17204,200
2023-10-10$47.30$47.30427,000
2023-10-09$47.40$47.40379,200
2023-10-06$47.02$47.02602,300
2023-10-05$47.04$47.041,032,200
2023-10-04$45.28$45.28497,300
2023-10-03$47.49$47.49496,300
2023-10-02$46.58$46.58631,700
2023-09-29$48.25$48.25303,900
2023-09-28$48.83$48.83387,400
2023-09-27$47.45$47.45220,300
2023-09-26$47.60$47.60576,000
2023-09-25$47.30$47.30621,000
2023-09-22$51.00$51.00502,200
2023-09-21$50.98$50.98330,600
2023-09-20$52.50$52.50353,500
2023-09-19$52.51$52.51242,600
2023-09-18$52.52$52.52588,300
2023-09-15$52.46$52.461,052,100
2023-09-14$54.17$54.17385,000
2023-09-13$53.99$53.99393,100
2023-09-12$55.39$55.39299,000
2023-09-11$54.45$54.45351,800
2023-09-08$52.59$52.59217,100
2023-09-07$53.48$53.48362,700
2023-09-06$54.88$54.88158,800
2023-09-05$54.39$54.39288,800
2023-09-01$55.15$55.15389,500
2023-08-31$52.82$52.82457,400
2023-08-30$54.37$54.37518,500
2023-08-29$56.20$56.20368,600
2023-08-28$55.32$55.32387,300
2023-08-25$53.73$53.73359,600
2023-08-24$53.51$53.51607,500
2023-08-23$56.64$56.64306,800
2023-08-22$57.15$57.15319,500
2023-08-21$57.17$57.17305,600
2023-08-18$56.75$56.75709,500
2023-08-17$57.99$57.99426,100
2023-08-16$59.18$59.18381,400
2023-08-15$60.36$60.36307,300
2023-08-14$61.18$61.18402,300
2023-08-11$62.11$62.11356,600
2023-08-10$62.38$62.38248,800
2023-08-09$61.47$61.47259,000
2023-08-08$60.95$60.95561,800
2023-08-07$62.74$62.74650,200
2023-08-04$61.67$61.67756,200
2023-08-03$66.53$66.53315,400
2023-08-02$67.53$67.53276,900
2023-08-01$69.05$69.05305,800
2023-07-31$68.87$68.87292,200
2023-07-28$66.70$66.70331,200
2023-07-27$64.11$64.11455,900
2023-07-26$62.31$62.31455,600
2023-07-25$63.98$63.98239,900
2023-07-24$64.77$64.77405,800
2023-07-21$65.01$65.01295,900
2023-07-20$66.23$66.23242,500
2023-07-19$66.52$66.52418,900
2023-07-18$69.91$69.91386,900
2023-07-17$70.60$70.60436,700
2023-07-14$70.01$70.01231,500
2023-07-13$68.72$68.72326,900
2023-07-12$67.74$67.74233,600
2023-07-11$67.38$67.38253,300
2023-07-10$65.40$65.40337,200
2023-07-07$64.58$64.58392,500
2023-07-06$67.03$67.03221,800
2023-07-05$67.62$67.62296,000
2023-07-03$68.71$68.71137,400
2023-06-30$68.28$68.28354,300
2023-06-29$68.64$68.64414,300
2023-06-28$70.00$70.00393,700
2023-06-27$68.57$68.57274,800
2023-06-26$67.62$67.62329,500
2023-06-23$69.78$69.78819,500
2023-06-22$70.90$70.90273,000
2023-06-21$69.80$69.80283,300
2023-06-20$70.18$70.18358,900
2023-06-16$68.43$68.431,247,200
2023-06-15$72.57$72.57357,800
2023-06-14$71.85$71.85431,600
2023-06-13$76.43$76.43726,500
2023-06-12$73.01$73.01565,900
2023-06-09$69.50$69.50281,200
2023-06-08$69.95$69.95312,300
2023-06-07$72.29$72.29493,900
2023-06-06$72.01$72.01327,700
2023-06-05$69.26$69.26330,200
2023-06-02$69.01$69.01436,700
2023-06-01$66.39$66.39232,600
2023-05-31$66.43$66.43598,900
2023-05-30$64.51$64.51371,100
2023-05-26$66.44$66.44413,400
2023-05-25$67.25$67.25367,700
2023-05-24$69.63$69.63348,800
2023-05-23$70.56$70.56445,300
2023-05-22$72.80$72.80579,100
2023-05-19$73.82$73.82445,100
2023-05-18$73.64$73.64382,600
2023-05-17$76.00$76.00646,900
2023-05-16$73.25$73.25584,000
2023-05-15$74.97$74.97315,700
2023-05-12$72.83$72.83352,300
2023-05-11$73.48$73.48382,000
2023-05-10$75.15$75.15416,600
2023-05-09$75.76$75.76535,100
2023-05-08$76.89$76.89665,400
2023-05-05$78.59$78.591,177,900
2023-05-04$70.16$70.16848,200
2023-05-03$67.06$67.062,237,500
2023-05-02$52.51$52.51390,000
2023-05-01$53.81$53.81359,000
2023-04-28$52.62$52.62429,700
2023-04-27$52.33$52.33277,300
2023-04-26$53.33$53.33220,000
2023-04-25$54.24$54.24235,100
2023-04-24$54.78$54.78239,300
2023-04-21$54.52$54.52241,700
2023-04-20$52.92$52.92232,700
2023-04-19$53.14$53.14295,600
2023-04-18$53.13$53.13285,000
2023-04-17$53.28$53.28672,400
2023-04-14$50.43$50.43458,600
2023-04-13$51.72$51.72595,100
2023-04-12$49.18$49.18231,200
2023-04-11$49.69$49.69252,300
2023-04-10$48.84$48.84347,600
2023-04-06$49.33$49.33331,200
2023-04-05$48.26$48.26232,400
2023-04-04$48.52$48.52650,100
2023-04-03$48.70$48.70390,400
2023-03-31$48.47$48.47434,100
2023-03-30$47.66$47.66402,800
2023-03-29$49.21$49.21456,700
2023-03-28$48.12$48.12445,200
2023-03-27$47.84$47.84324,200
2023-03-24$47.07$47.07630,800
2023-03-23$48.07$48.07603,800
2023-03-22$46.97$46.97596,000
2023-03-21$49.12$49.12352,200
2023-03-20$48.14$48.14334,300
2023-03-17$48.27$48.271,079,800
2023-03-16$48.97$48.97236,900
2023-03-15$49.03$49.03429,400
2023-03-14$48.46$48.46417,300
2023-03-13$48.42$48.42637,400
2023-03-10$47.98$47.98850,100
2023-03-09$50.16$50.16461,500
2023-03-08$52.73$52.73419,600
2023-03-07$52.00$52.00256,600
2023-03-06$53.38$53.38549,700
2023-03-03$54.03$54.03369,800
2023-03-02$52.97$52.97354,900
2023-03-01$55.95$55.95408,400
2023-02-28$55.76$55.76488,500
2023-02-27$54.57$54.57376,300
2023-02-24$54.52$54.52731,000
2023-02-23$50.90$50.90490,400
2023-02-22$52.10$52.10291,800
2023-02-21$51.37$51.37557,600
2023-02-17$53.42$53.42365,400
2023-02-16$52.52$52.52529,000
2023-02-15$53.92$53.92340,100
2023-02-14$54.23$54.23315,000
2023-02-13$53.96$53.96432,700
2023-02-10$53.38$53.38325,800
2023-02-09$54.87$54.87300,400
2023-02-08$55.32$55.32293,100
2023-02-07$57.20$57.20361,400
2023-02-06$58.27$58.27621,900
2023-02-03$57.75$57.75501,200
2023-02-02$55.55$55.55917,300
2023-02-01$53.67$53.67560,300
2023-01-31$56.55$56.55434,600
2023-01-30$54.96$54.96314,800
2023-01-27$57.12$57.12314,000
2023-01-26$55.85$55.85317,700
2023-01-25$55.25$55.25337,800
2023-01-24$55.90$55.90381,000
2023-01-23$55.10$55.10538,100
2023-01-20$54.56$54.56421,400
2023-01-19$53.96$53.96277,500
2023-01-18$54.75$54.75307,100
2023-01-17$55.82$55.82433,300
2023-01-13$56.90$56.90570,300
2023-01-12$57.50$57.50581,000
2023-01-11$56.09$56.09360,900
2023-01-10$53.29$53.29458,000
2023-01-09$52.45$52.45770,700
2023-01-06$53.64$53.641,294,300
2023-01-05$52.51$52.51639,200
2023-01-04$53.40$53.40794,100
2023-01-03$53.50$53.501,378,200