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PRTA
Prothena Corporation plc
stock NASDAQ

At Close

Aug 4, 2026 3:59:57 PM EDT

8.48USD+2.106%(+0.17)329,912

7.12Bid 9.71Ask 2.59Spread

Pre-market

Jul 31, 2026 8:51:30 AM EDT

8.81USD+8.498%(+0.69)0

After-hours

Aug 4, 2026 4:00:30 PM EDT

8.49USD+0.059%(+0.01)88,521

OverviewOptionsHistoricalExchange VolumeShortsMore

PRTA Volume Aug 4, 2026

[NF]

Exchange	Day%	Volume	30D%
Nasdaq GSM	45.54	150,207	41.46
Off Exchange¹	30.51	100,635	32.25
NYSE Arca	6.44	21,249	6.16
IEX	5.25	17,325	6.32
Cboe BZX	4.89	16,146	4.51
Cboe EDGX	2.84	9,370	2.95
NYSE	2.02	6,659	1.83
MEMX	1.05	3,458	0.92
Cboe BYX	0.36	1,197	0.84
Cboe EDGA	0.32	1,072	0.72
MIAX Pearl	0.28	915	0.25
Nasdaq BX	0.13	433	0.52
NYSE American	0.12	396	0.11
NYSE National	0.11	353	0.44
CHX	0.06	210	0.58
Nasdaq PHLX	0.04	142	0.13
LTSE	0.03	100	0.00
24X National	0.00	0	0.00

chartexchange.com

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

PRTA Nutrition Facts

0.55 servings per container

Serving size

597.64K

Calories

329.87K

% Day

% Avg

Nasdaq GSM 150K

45.54%

41.46%

Off Exchange¹ 101K

30.51%

32.25%

NYSE Arca 21K

6.44%

6.16%

IEX 17K

5.25%

6.32%

Cboe BZX 16K

4.89%

4.51%

Cboe EDGX 9K

2.84%

2.95%

NYSE 7K

2.02%

1.83%

MEMX 3K

1.05%

0.92%

Cboe BYX 1K

0.36%

0.84%

Cboe EDGA 1K

0.32%

0.72%

MIAX Pearl 915

0.28%

0.25%

Nasdaq BX 433

0.13%

0.52%

NYSE American 396

0.12%

0.11%

NYSE National 353

0.11%

0.44%

CHX 210

0.06%

0.58%

Nasdaq PHLX 142

0.04%

0.13%

LTSE 100

0.03%

0.00%

24X National 0

0.00%

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

chartexchange.com

PRTA Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 100,635, which is 30.51% of today's total volume.
Today's Lit volume is 229,232, which is 69.49%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 32.25%.
The average Lit volume has been 67.75%.

PRTA Volume by Exchange

Nasdaq GSM

Off Exchange

NYSE Arca

IEX

Cboe BZX

Cboe EDGX

NYSE

MEMX

Cboe BYX

Cboe EDGA

MIAX Pearl