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ATRA
Atara Biotherapeutics, Inc
stock NASDAQ

At Close

Aug 7, 2026 3:59:30 PM EDT

8.37USD+1.455%(+0.12)23,212

0.00Bid 0.00Ask 0.00Spread

Pre-market

Aug 3, 2026 9:02:30 AM EDT

8.40USD+1.818%(+0.15)0

After-hours

Aug 7, 2026 4:52:30 PM EDT

8.00USD-4.417%(-0.37)2,110

OverviewHistoricalExchange VolumeShortsMore

ATRA Volume Aug 7, 2026

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Exchange	Day%	Volume	30D%
Nasdaq GSM	44.89	8,429	34.52
Off Exchange¹	28.56	5,363	35.61
NYSE Arca	5.68	1,066	10.79
Cboe EDGX	5.36	1,006	4.56
IEX	3.94	739	2.39
Cboe BYX	3.45	647	2.47
Nasdaq BX	2.46	461	1.05
Cboe BZX	2.23	419	3.85
Nasdaq PHLX	0.75	140	0.13
MIAX Pearl	0.70	132	0.97
NYSE National	0.68	128	0.26
NYSE American	0.58	109	0.03
CHX	0.47	89	0.04
NYSE	0.21	39	1.01
Cboe EDGA	0.05	9	0.11
MEMX	0.01	2	2.13
LTSE	0.00	0	0.09

chartexchange.com

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

ATRA Nutrition Facts

0.28 servings per container

Serving size

67.23K

Calories

18.78K

% Day

% Avg

Nasdaq GSM 8K

44.89%

34.52%

Off Exchange¹ 5K

28.56%

35.61%

NYSE Arca 1K

5.68%

10.79%

Cboe EDGX 1K

5.36%

4.56%

IEX 739

3.94%

2.39%

Cboe BYX 647

3.45%

2.47%

Nasdaq BX 461

2.46%

1.05%

Cboe BZX 419

2.23%

3.85%

Nasdaq PHLX 140

0.75%

0.13%

MIAX Pearl 132

0.70%

0.97%

NYSE National 128

0.68%

0.26%

NYSE American 109

0.58%

0.03%

CHX 89

0.47%

0.04%

NYSE 39

0.21%

1.01%

Cboe EDGA 9

0.05%

0.11%

MEMX 2

0.01%

2.13%

LTSE 0

0.00%

0.09%

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

chartexchange.com

ATRA Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 5,363, which is 28.56% of today's total volume.
Today's Lit volume is 13,415, which is 71.44%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 35.61%.
The average Lit volume has been 64.39%.

ATRA Volume by Exchange

Nasdaq GSM

Off Exchange

NYSE Arca

Cboe EDGX

IEX

Cboe BYX

Nasdaq BX

Cboe BZX

Nasdaq PHLX

MIAX Pearl

NYSE National