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ATRA
Atara Biotherapeutics, Inc
stock NASDAQ

At Close

Dec 5, 2025 3:59:51 PM EST

14.41USD+1.479%(+0.21)69,064

0.00Bid 0.00Ask 0.00Spread

Pre-market

Dec 3, 2025 8:09:30 AM EST

12.26USD-13.662%(-1.94)0

After-hours

Dec 4, 2025 4:47:30 PM EST

14.32USD+1.309%(+0.18)0

OverviewHistoricalExchange VolumeShortsMore

ATRA Volume Dec 5, 2025

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	38.52	26,604	51.49
Nasdaq BX	24.06	16,618	1.51
Nasdaq GSM	18.78	12,973	22.14
NYSE Arca	5.59	3,858	5.06
Cboe EDGX	3.72	2,569	9.47
Cboe BZX	3.08	2,124	2.97
IEX	2.74	1,890	1.49
LTSE	1.03	713	0.12
Cboe BYX	0.73	506	0.49
MEMX	0.64	440	3.07
Nasdaq PHLX	0.44	306	0.18
NYSE National	0.35	243	0.24
NYSE	0.16	110	0.60
Cboe EDGA	0.16	109	0.12
MIAX Pearl	0.00	1	1.00
NYSE American	0.00	0	0.05
CHX	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.

ATRA Nutrition Facts

1.07 servings per container

Serving size

64.63K

Calories

69.06K

% Day

% Avg

Off Exchange¹ 27K

38.52%

51.49%

Nasdaq BX 17K

24.06%

1.51%

Nasdaq GSM 13K

18.78%

22.14%

NYSE Arca 4K

5.59%

5.06%

Cboe EDGX 3K

3.72%

9.47%

Cboe BZX 2K

3.08%

2.97%

IEX 2K

2.74%

1.49%

LTSE 713

1.03%

0.12%

Cboe BYX 506

0.73%

0.49%

MEMX 440

0.64%

3.07%

Nasdaq PHLX 306

0.44%

0.18%

NYSE National 243

0.35%

0.24%

NYSE 110

0.16%

0.60%

Cboe EDGA 109

0.16%

0.12%

MIAX Pearl 1

0.00%

1.00%

NYSE American 0

0.00%

0.05%

CHX 0

0.00%

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 26,604, which is 38.52% of today's total volume.
Today's Lit volume is 42,460, which is 61.48%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 51.49%.
The average Lit volume has been 48.51%.

ATRA Volume by Exchange

Off Exchange

Nasdaq BX

Nasdaq GSM

NYSE Arca

Cboe EDGX

Cboe BZX

IEX

LTSE

Cboe BYX

MEMX

Nasdaq PHLX