Market Cap

$420.96M

Current · Retrieved: Oct 24, 2026 · USD

PRTA Market Cap

Current$420.96MretrievedOct 24, 2026

PRTA Market Cap ($369.63M → $420.96M · CAGR +0.9%)

Latest values, visible window

High-resolution chart · PNG

PRTA market cap history

Daily history. Dates identify market observations.

Prothena Plc Market Cap — Daily history
Date	Market Cap
Oct 2, 2020	519,530,440
Sep 25, 2020	520,557,180
Sep 18, 2020	547,252,420
Sep 11, 2020	627,338,140
Sep 4, 2020	682,268,730
Aug 28, 2020	661,733,930
Aug 21, 2020	669,434,480
Aug 14, 2020	632,471,840
Aug 7, 2020	653,006,640
Jul 31, 2020	628,364,880
Jul 24, 2020	625,284,660
Jul 17, 2020	672,001,330
Jul 10, 2020	583,188,320
Jul 2, 2020	563,680,260
Jun 26, 2020	519,530,440
Jun 19, 2020	508,749,670
Jun 12, 2020	496,428,790
Jun 5, 2020	551,872,750
May 29, 2020	547,252,420
May 22, 2020	609,883,560
May 15, 2020	579,594,730
May 8, 2020	577,027,880
May 1, 2020	583,701,690
Apr 24, 2020	613,477,150
Apr 17, 2020	608,856,820
Apr 9, 2020	595,509,200
Apr 3, 2020	531,337,950
Mar 27, 2020	492,835,200
Mar 20, 2020	460,492,890
Mar 13, 2020	513,370,000
Mar 6, 2020	535,444,910
Feb 28, 2020	547,252,420
Feb 21, 2020	609,626,875
Feb 14, 2020	669,947,850
Feb 7, 2020	654,546,750
Jan 31, 2020	624,771,290
Jan 24, 2020	673,028,070
Jan 17, 2020	732,065,620
Jan 10, 2020	788,536,320
Jan 3, 2020	768,001,520
Dec 27, 2019	821,392,000
Dec 20, 2019	813,691,450
Dec 13, 2019	659,680,450
Dec 6, 2019	659,680,450
Nov 29, 2019	658,140,340
Nov 22, 2019	550,075,955
Nov 15, 2019	537,498,390
Nov 8, 2019	465,626,590
Nov 1, 2019	467,166,700
Oct 25, 2019	440,984,830
Oct 18, 2019	399,915,230
Oct 11, 2019	398,375,120
Oct 4, 2019	399,915,230
Sep 27, 2019	400,428,600
Sep 20, 2019	429,690,690
Sep 13, 2019	432,257,540
Sep 6, 2019	455,359,190
Aug 30, 2019	431,744,170
Aug 23, 2019	353,711,930
Aug 16, 2019	397,861,750
Aug 9, 2019	441,498,200
Aug 2, 2019	463,573,110
Jul 26, 2019	509,776,410
Jul 19, 2019	506,182,820
Jul 12, 2019	496,942,160
Jul 5, 2019	520,043,810
Jun 28, 2019	542,632,090
Jun 21, 2019	500,022,380
Jun 14, 2019	482,567,800
Jun 7, 2019	466,653,330
May 31, 2019	478,460,840
May 24, 2019	487,188,130
May 17, 2019	489,241,610
May 10, 2019	531,851,320
May 3, 2019	542,118,720
Apr 26, 2019	558,546,560
Apr 18, 2019	549,305,900
Apr 12, 2019	572,920,920
Apr 5, 2019	641,199,130
Mar 29, 2019	622,717,810
Mar 22, 2019	631,445,100
Mar 15, 2019	736,685,950
Mar 8, 2019	657,113,600
Mar 1, 2019	706,910,490
Feb 22, 2019	688,429,170
Feb 15, 2019	675,081,550
Feb 8, 2019	631,958,470
Feb 1, 2019	601,669,640
Jan 25, 2019	604,749,860
Jan 18, 2019	614,503,890
Jan 11, 2019	602,183,010
Jan 4, 2019	559,059,930
Dec 28, 2018	526,204,250
Dec 21, 2018	456,385,930
Dec 14, 2018	601,156,270
Dec 7, 2018	583,188,320
Nov 30, 2018	616,557,370
Nov 23, 2018	615,530,630
Nov 16, 2018	598,589,420
Nov 9, 2018	637,092,170