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 — 2014

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2014-12-31$20.76$20.76231,200
2014-12-30$20.69$20.69242,700
2014-12-29$20.93$20.93300,200
2014-12-26$21.38$21.38148,700
2014-12-24$20.14$20.14145,900
2014-12-23$18.73$18.73217,600
2014-12-22$20.64$20.64254,100
2014-12-19$21.55$21.55650,900
2014-12-18$20.38$20.38199,600
2014-12-17$19.96$19.96261,800
2014-12-16$18.50$18.50426,300
2014-12-15$17.62$17.62239,800
2014-12-12$18.15$18.15326,200
2014-12-11$18.49$18.49275,500
2014-12-10$19.62$19.62216,900
2014-12-09$20.54$20.54503,500
2014-12-08$19.00$19.00850,500
2014-12-05$20.04$20.04577,200
2014-12-04$21.44$21.44411,700
2014-12-03$21.99$21.99468,300
2014-12-02$23.15$23.15199,100
2014-12-01$22.16$22.16245,200
2014-11-28$24.24$24.24217,400
2014-11-26$22.92$22.92127,300
2014-11-25$22.43$22.43458,900
2014-11-24$22.58$22.58148,500
2014-11-21$22.06$22.06140,600
2014-11-20$22.26$22.26146,300
2014-11-19$22.29$22.29121,000
2014-11-18$23.10$23.10214,700
2014-11-17$22.08$22.08220,800
2014-11-14$21.53$21.53238,000
2014-11-13$21.80$21.80221,700
2014-11-12$22.84$22.84289,100
2014-11-11$23.75$23.75197,200
2014-11-10$23.48$23.48252,900
2014-11-07$22.56$22.56173,600
2014-11-06$22.17$22.17198,100
2014-11-05$20.99$20.99358,400
2014-11-04$20.62$20.62320,900
2014-11-03$22.19$22.19181,200
2014-10-31$21.93$21.93267,600
2014-10-30$21.37$21.37179,000
2014-10-29$20.95$20.95145,400
2014-10-28$21.28$21.28157,700
2014-10-27$19.78$19.78168,800
2014-10-24$20.90$20.9092,500
2014-10-23$20.57$20.57184,400
2014-10-22$18.99$18.99138,800
2014-10-21$19.81$19.8191,300
2014-10-20$20.14$20.14153,900
2014-10-17$19.96$19.96183,300
2014-10-16$19.86$19.86260,300
2014-10-15$18.94$18.94304,000
2014-10-14$17.80$17.80274,800
2014-10-13$17.48$17.48330,400
2014-10-10$18.38$18.38243,600
2014-10-09$20.21$20.21203,400
2014-10-08$20.91$20.91287,100
2014-10-07$19.92$19.92169,100
2014-10-06$20.40$20.40221,600
2014-10-03$21.40$21.40180,100
2014-10-02$21.71$21.71154,400
2014-10-01$21.07$21.07260,300
2014-09-30$22.16$22.16328,300
2014-09-29$22.78$22.78150,900
2014-09-26$22.57$22.57119,600
2014-09-25$22.26$22.26150,800
2014-09-24$23.25$23.25145,900
2014-09-23$22.71$22.71216,100
2014-09-22$22.44$22.44164,200
2014-09-19$23.51$23.51318,400
2014-09-18$22.90$22.90223,800
2014-09-17$23.63$23.63233,600
2014-09-16$22.40$22.40207,400
2014-09-15$21.98$21.98257,800
2014-09-12$23.38$23.38234,300
2014-09-11$24.00$24.00196,900
2014-09-10$23.75$23.75159,900
2014-09-09$22.90$22.90492,700
2014-09-08$23.51$23.51129,200
2014-09-05$23.27$23.27421,800
2014-09-04$23.36$23.36335,900
2014-09-03$23.25$23.25441,500
2014-09-02$23.11$23.11214,000
2014-08-29$22.90$22.90139,000
2014-08-28$22.52$22.52102,200
2014-08-27$22.62$22.62170,800
2014-08-26$23.00$23.00237,100
2014-08-25$21.94$21.94155,800
2014-08-22$21.49$21.49273,900
2014-08-21$21.25$21.25364,000
2014-08-20$21.10$21.10213,000
2014-08-19$21.08$21.08143,400
2014-08-18$21.13$21.13245,500
2014-08-15$20.91$20.91344,900
2014-08-14$21.26$21.26194,000
2014-08-13$20.68$20.68416,400
2014-08-12$21.05$21.05419,100
2014-08-11$20.73$20.73172,300
2014-08-08$20.51$20.51287,300
2014-08-07$19.52$19.52141,600
2014-08-06$19.02$19.02375,400
2014-08-05$19.47$19.47522,000
2014-08-04$18.89$18.89406,400
2014-08-01$17.36$17.36390,100
2014-07-31$17.36$17.36648,600
2014-07-30$18.80$18.80443,100
2014-07-29$17.79$17.79229,200
2014-07-28$17.37$17.37226,900
2014-07-25$18.22$18.22220,200
2014-07-24$18.48$18.48156,400
2014-07-23$18.95$18.95188,800
2014-07-22$18.78$18.78185,300
2014-07-21$18.50$18.50255,600
2014-07-18$18.44$18.44336,400
2014-07-17$17.26$17.26325,400
2014-07-16$19.01$19.01231,900
2014-07-15$19.54$19.54506,000
2014-07-14$21.14$21.14200,300
2014-07-11$20.64$20.64396,700
2014-07-10$20.94$20.94225,100
2014-07-09$21.09$21.09228,700
2014-07-08$21.19$21.19531,700
2014-07-07$23.02$23.02474,000
2014-07-03$23.41$23.41121,100
2014-07-02$22.73$22.73516,300
2014-07-01$22.59$22.59414,700
2014-06-30$22.55$22.55530,100
2014-06-27$22.30$22.301,465,200
2014-06-26$22.30$22.30472,600
2014-06-25$21.89$21.891,693,800
2014-06-24$23.11$23.11546,100
2014-06-23$22.71$22.71237,200
2014-06-20$23.63$23.631,716,400
2014-06-19$23.91$23.91267,700
2014-06-18$24.81$24.81260,200
2014-06-17$22.96$22.96188,200
2014-06-16$23.56$23.56222,600
2014-06-13$22.54$22.54208,600
2014-06-12$22.03$22.03168,300
2014-06-11$21.60$21.60116,700
2014-06-10$22.03$22.03147,700
2014-06-09$22.51$22.51285,000
2014-06-06$21.78$21.78238,600
2014-06-05$21.43$21.43277,700
2014-06-04$20.39$20.39286,000
2014-06-03$20.20$20.20187,200
2014-06-02$20.53$20.53144,000
2014-05-30$20.82$20.82123,900
2014-05-29$21.69$21.69183,100
2014-05-28$21.47$21.47368,100
2014-05-27$20.77$20.77411,100
2014-05-23$20.30$20.30182,200
2014-05-22$20.41$20.41374,300
2014-05-21$20.00$20.00276,800
2014-05-20$20.41$20.41188,600
2014-05-19$20.73$20.73190,700
2014-05-16$20.93$20.93140,900
2014-05-15$21.10$21.10337,900
2014-05-14$21.34$21.34441,700
2014-05-13$21.06$21.06736,200
2014-05-12$20.86$20.86294,600
2014-05-09$19.38$19.38473,600
2014-05-08$18.73$18.73392,500
2014-05-07$21.06$21.06364,500
2014-05-06$21.65$21.65376,800
2014-05-05$21.69$21.69538,200
2014-05-02$21.44$21.44473,600
2014-05-01$22.14$22.141,125,700
2014-04-30$22.00$22.002,078,700
2014-04-29$26.12$26.122,533,300
2014-04-28$37.68$37.68327,900
2014-04-25$38.58$38.58341,200
2014-04-24$39.62$39.62548,300
2014-04-23$36.95$36.951,577,100
2014-04-22$33.74$33.74259,900
2014-04-21$31.63$31.63172,400
2014-04-17$30.55$30.55343,200
2014-04-16$28.07$28.07168,200
2014-04-15$26.26$26.26504,000
2014-04-14$27.29$27.29527,900
2014-04-11$28.53$28.53303,800
2014-04-10$30.25$30.25206,900
2014-04-09$33.90$33.90300,800
2014-04-08$29.91$29.91144,800
2014-04-07$30.41$30.41292,200
2014-04-04$29.60$29.60515,700
2014-04-03$34.41$34.41213,800
2014-04-02$36.19$36.19220,900
2014-04-01$37.02$37.02263,700
2014-03-31$38.31$38.31198,800
2014-03-28$36.03$36.03108,000
2014-03-27$36.86$36.86323,500
2014-03-26$40.07$40.07275,700
2014-03-25$38.95$38.95186,400
2014-03-24$38.77$38.77561,600
2014-03-21$45.48$45.48428,600
2014-03-20$48.30$48.30387,500
2014-03-19$47.39$47.391,937,700
2014-03-18$37.16$37.16317,100
2014-03-17$37.51$37.51181,200
2014-03-14$38.88$38.88111,500
2014-03-13$38.34$38.34283,800
2014-03-12$40.24$40.24188,600
2014-03-11$39.00$39.00196,900
2014-03-10$37.74$37.74360,700
2014-03-07$37.69$37.69183,700
2014-03-06$37.57$37.57205,300
2014-03-05$38.24$38.24287,300
2014-03-04$39.45$39.45291,200
2014-03-03$37.33$37.33281,900
2014-02-28$36.01$36.01374,100
2014-02-27$35.90$35.90215,000
2014-02-26$34.46$34.46181,500
2014-02-25$34.49$34.49342,800
2014-02-24$31.12$31.12107,900
2014-02-21$30.22$30.22154,000
2014-02-20$29.85$29.85252,400
2014-02-19$28.00$28.0091,300
2014-02-18$28.69$28.69164,500
2014-02-14$26.73$26.73199,500
2014-02-13$26.40$26.4087,200
2014-02-12$26.39$26.39116,500
2014-02-11$26.76$26.7696,200
2014-02-10$27.02$27.02153,900
2014-02-07$27.21$27.21137,500
2014-02-06$26.72$26.72152,700
2014-02-05$28.08$28.08206,100
2014-02-04$29.81$29.81137,300
2014-02-03$29.52$29.52224,100
2014-01-31$30.94$30.94270,800
2014-01-30$32.03$32.03658,300
2014-01-29$29.79$29.791,554,100
2014-01-28$27.14$27.14226,400
2014-01-27$25.63$25.63216,000
2014-01-24$25.95$25.95171,400
2014-01-23$26.94$26.94165,600
2014-01-22$26.54$26.54197,600
2014-01-21$26.97$26.97457,700
2014-01-17$26.11$26.11175,900
2014-01-16$26.60$26.60130,700
2014-01-15$26.25$26.25167,600
2014-01-14$26.37$26.37308,300
2014-01-13$24.65$24.65221,500
2014-01-10$26.99$26.99185,500
2014-01-09$26.90$26.90171,700
2014-01-08$27.59$27.59161,500
2014-01-07$27.40$27.40117,000
2014-01-06$27.23$27.23253,900
2014-01-03$27.65$27.65278,500
2014-01-02$28.10$28.10715,700