Dark

ATYR
aTyr Pharma, Inc. Common Stock
stock NASDAQ

Market Open

May 20, 2026 12:16:57 PM EDT

0.5300USD+10.021%(+0.0480)1,545,290

0.5200Bid 0.6000Ask 0.0800Spread

Pre-market

May 20, 2026 9:13:30 AM EDT

0.4949USD+2.464%(+0.0119)99,849

After-hours

May 19, 2026 4:47:30 PM EDT

0.4820USD-1.552%(-0.0080)0

OverviewOptionsHistoricalExchange VolumeShortsTrends

ATYR Volume May 20, 2026 12:04:56 PM EDT

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	70.07	1,021,533	63.64
Nasdaq GSM	10.33	150,672	15.52
NYSE Arca	8.89	129,574	8.06
Cboe EDGX	3.94	57,440	2.81
MEMX	1.83	26,650	2.43
IEX	1.62	23,604	1.58
Cboe BZX	1.28	18,728	1.57
NYSE	0.71	10,337	0.46
MIAX Pearl	0.64	9,285	0.78
Cboe EDGA	0.47	6,824	1.84
Cboe BYX	0.07	1,089	0.55
CHX	0.05	700	0.01
NYSE National	0.04	543	0.30
NYSE American	0.03	500	0.08
24X National	0.01	201	0.02
Nasdaq BX	0.01	180	0.21
Nasdaq PHLX	0.00	50	0.14
LTSE	0.00	0	0.01

chartexchange.com

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

ATYR Nutrition Facts

0.58 servings per container

Serving size

2.53M

Calories

1.46M

% Day

% Avg

Off Exchange¹ 1M

70.07%

63.64%

Nasdaq GSM 151K

10.33%

15.52%

NYSE Arca 130K

8.89%

8.06%

Cboe EDGX 57K

3.94%

2.81%

MEMX 27K

1.83%

2.43%

IEX 24K

1.62%

1.58%

Cboe BZX 19K

1.28%

1.57%

NYSE 10K

0.71%

0.46%

MIAX Pearl 9K

0.64%

0.78%

Cboe EDGA 7K

0.47%

1.84%

Cboe BYX 1K

0.07%

0.55%

CHX 700

0.05%

0.01%

NYSE National 543

0.04%

0.30%

NYSE American 500

0.03%

0.08%

24X National 201

0.01%

0.02%

Nasdaq BX 180

0.01%

0.21%

Nasdaq PHLX 50

0.00%

0.14%

LTSE 0

0.00%

0.01%

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

chartexchange.com

ATYR Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 1,021,533, which is 70.07% of today's total volume.
Today's Lit volume is 436,377, which is 29.93%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 63.64%.
The average Lit volume has been 36.36%.

ATYR Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

Cboe EDGX

MEMX

IEX

Cboe BZX

NYSE

MIAX Pearl

Cboe EDGA

Cboe BYX