Dark

ALT
Altimmune, Inc. Common Stock
stock NASDAQ

At Close

Jul 14, 2025 3:59:55 PM EDT

4.25USD+2.657%(+0.11)2,759,610

0.00Bid 0.00Ask 0.00Spread

Pre-market

Jul 15, 2025 9:05:30 AM EDT

4.27USD+0.235%(+0.01)18,646

After-hours

Jul 14, 2025 4:52:30 PM EDT

4.27USD+0.471%(+0.02)8,772

OverviewOptionsHistoricalDark Pool LevelsShortsMore

ALT Volume Jul 15, 2025

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	51.97	1,434,100	53.58
Nasdaq GSM	24.60	678,973	18.57
NYSE Arca	7.09	195,622	10.38
Cboe EDGX	4.21	116,235	6.25
Cboe BZX	3.72	102,568	3.11
IEX	3.39	93,462	2.26
NYSE	1.20	33,238	1.05
MEMX	1.12	30,985	1.98
MIAX Pearl	0.99	27,212	0.92
Cboe EDGA	0.55	15,049	0.55
NYSE National	0.50	13,762	0.30
Cboe BYX	0.49	13,443	0.53
NYSE American	0.09	2,589	0.07
Nasdaq BX	0.06	1,756	0.22
Nasdaq PHLX	0.02	516	0.12
CHX	0.00	100	0.11

chartexchange.com

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

ALT Nutrition Facts

0.31 servings per container

Serving size

9.00M

Calories

2.76M

% Day

% Avg

Off Exchange¹ 1M

51.97%

53.58%

Nasdaq GSM 679K

24.60%

18.57%

NYSE Arca 196K

7.09%

10.38%

Cboe EDGX 116K

4.21%

6.25%

Cboe BZX 103K

3.72%

3.11%

IEX 93K

3.39%

2.26%

NYSE 33K

1.20%

1.05%

MEMX 31K

1.12%

1.98%

MIAX Pearl 27K

0.99%

0.92%

Cboe EDGA 15K

0.55%

NYSE National 14K

0.50%

0.30%

Cboe BYX 13K

0.49%

0.53%

NYSE American 3K

0.09%

0.07%

Nasdaq BX 2K

0.06%

0.22%

Nasdaq PHLX 516

0.02%

0.12%

CHX 100

0.00%

0.11%

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

chartexchange.com

ALT Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 1,434,100, which is 51.97% of today's total volume.
Today's Lit volume is 1,325,510, which is 48.03%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 53.58%.
The average Lit volume has been 46.42%.

ALT Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

Cboe EDGX

Cboe BZX

IEX

NYSE

MEMX

MIAX Pearl

Cboe EDGA

NYSE National