Dark

ATRA
Atara Biotherapeutics, Inc
stock NASDAQ

At Close

Jan 9, 2026 3:59:30 PM EST

13.69USD-21.502%(-3.75)825,546

14.05Bid 14.16Ask 0.11Spread

Pre-market

Jan 9, 2026 9:23:30 AM EST

17.57USD+0.745%(+0.13)1,732

After-hours

Jan 9, 2026 4:49:30 PM EST

14.02USD+2.411%(+0.33)7,584

OverviewHistoricalExchange VolumeShortsMore

ATRA Volume Jan 9, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	52.44	437,760	51.26
Nasdaq GSM	16.57	138,320	21.73
Cboe EDGX	11.29	94,234	9.58
NYSE Arca	8.47	70,705	7.14
Cboe BZX	3.11	25,932	2.32
MEMX	2.03	16,949	2.99
Cboe BYX	1.75	14,579	0.71
IEX	0.82	6,879	1.40
Cboe EDGA	0.82	6,870	0.32
MIAX Pearl	0.80	6,689	0.43
Nasdaq BX	0.80	6,678	1.20
NYSE	0.47	3,889	0.54
NYSE National	0.36	2,991	0.16
NYSE American	0.11	900	0.05
CHX	0.09	725	0.02
Nasdaq PHLX	0.07	617	0.10
LTSE	0.00	0	0.05

chartexchange.com

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

ATRA Nutrition Facts

8.27 servings per container

Serving size

100.95K

Calories

834.72K

% Day

% Avg

Off Exchange¹ 438K

52.44%

51.26%

Nasdaq GSM 138K

16.57%

21.73%

Cboe EDGX 94K

11.29%

9.58%

NYSE Arca 71K

8.47%

7.14%

Cboe BZX 26K

3.11%

2.32%

MEMX 17K

2.03%

2.99%

Cboe BYX 15K

1.75%

0.71%

IEX 7K

0.82%

1.40%

Cboe EDGA 7K

0.82%

0.32%

MIAX Pearl 7K

0.80%

0.43%

Nasdaq BX 7K

0.80%

1.20%

NYSE 4K

0.47%

0.54%

NYSE National 3K

0.36%

0.16%

NYSE American 900

0.11%

0.05%

CHX 725

0.09%

0.02%

Nasdaq PHLX 617

0.07%

0.10%

LTSE 0

0.00%

0.05%

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 437,760, which is 52.44% of today's total volume.
Today's Lit volume is 396,957, which is 47.56%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 51.26%.
The average Lit volume has been 48.74%.

ATRA Volume by Exchange

Off Exchange

Nasdaq GSM

Cboe EDGX

NYSE Arca

Cboe BZX

MEMX

Cboe BYX

IEX

Cboe EDGA

MIAX Pearl

Nasdaq BX