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ALT
Altimmune, Inc. Common Stock
stock NASDAQ

Market Open

Nov 7, 2025 2:12:01 PM EST

4.01USD+2.036%(+0.08)2,370,827

4.03Bid 4.04Ask 0.01Spread

Pre-market

Nov 7, 2025 9:27:30 AM EST

3.90USD-0.763%(-0.03)24,130

After-hours

Nov 6, 2025 4:58:30 PM EST

3.83USD-2.668%(-0.10)0

OverviewOptionsHistoricalDark Pool LevelsShortsMore

ALT Volume Nov 7, 2025 1:55:01 PM EST

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	58.25	1,279,084	53.30
Nasdaq GSM	16.67	366,045	22.65
Cboe EDGX	6.81	149,567	4.25
NYSE Arca	6.47	142,024	6.81
Cboe BZX	3.63	79,658	2.93
IEX	2.73	59,997	4.03
MEMX	2.04	44,827	1.40
NYSE	0.94	20,543	1.74
Nasdaq BX	0.57	12,470	0.14
MIAX Pearl	0.51	11,177	0.80
NYSE National	0.45	9,904	0.56
Cboe BYX	0.38	8,315	0.60
Cboe EDGA	0.34	7,383	0.57
Nasdaq PHLX	0.13	2,896	0.09
NYSE American	0.08	1,676	0.06
CHX	0.01	308	0.06

chartexchange.com

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

ALT Nutrition Facts

0.79 servings per container

Serving size

2.78M

Calories

2.20M

% Day

% Avg

Off Exchange¹ 1M

58.25%

53.30%

Nasdaq GSM 366K

16.67%

22.65%

Cboe EDGX 150K

6.81%

4.25%

NYSE Arca 142K

6.47%

6.81%

Cboe BZX 80K

3.63%

2.93%

IEX 60K

2.73%

4.03%

MEMX 45K

2.04%

1.40%

NYSE 21K

0.94%

1.74%

Nasdaq BX 12K

0.57%

0.14%

MIAX Pearl 11K

0.51%

0.80%

NYSE National 10K

0.45%

0.56%

Cboe BYX 8K

0.38%

0.60%

Cboe EDGA 7K

0.34%

0.57%

Nasdaq PHLX 3K

0.13%

0.09%

NYSE American 2K

0.08%

0.06%

CHX 308

0.01%

0.06%

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 1,279,084, which is 58.25% of today's total volume.
Today's Lit volume is 916,790, which is 41.75%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 53.30%.
The average Lit volume has been 46.70%.

ALT Volume by Exchange

Off Exchange

Nasdaq GSM

Cboe EDGX

NYSE Arca

Cboe BZX

IEX

MEMX

NYSE

Nasdaq BX

MIAX Pearl

NYSE National