Dark

ALT
Altimmune, Inc. Common Stock
stock NASDAQ

At Close

Jun 18, 2025 3:59:59 PM EDT

6.76USD-1.814%(-0.13)5,719,572

0.00Bid 0.00Ask 0.00Spread

Pre-market

Jun 18, 2025 9:25:30 AM EDT

6.89USD0.000%(0.00)12,113

After-hours

Jun 18, 2025 4:57:30 PM EDT

6.78USD+0.222%(+0.02)6,511

OverviewOptionsHistoricalExchange VolumeShortsMore

ALT Volume Jun 18, 2025

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	53.45	3,056,835	52.04
Nasdaq GSM	20.50	1,172,689	22.30
IEX	6.17	353,123	3.37
NYSE Arca	4.63	264,843	6.92
Cboe EDGX	4.39	250,888	5.17
Cboe BZX	4.24	242,728	3.55
MEMX	2.53	144,590	2.54
NYSE	1.79	102,103	1.36
MIAX Pearl	1.10	63,068	1.15
Cboe EDGA	0.47	26,879	0.59
Cboe BYX	0.30	16,989	0.39
NYSE American	0.15	8,416	0.11
Nasdaq BX	0.12	6,859	0.14
NYSE National	0.11	6,425	0.28
Nasdaq PHLX	0.05	3,037	0.08
CHX	0.00	100	0.00

chartexchange.com

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

ALT Nutrition Facts

1.88 servings per container

Serving size

3.05M

Calories

5.72M

% Day

% Avg

Off Exchange¹ 3M

53.45%

52.04%

Nasdaq GSM 1M

20.50%

22.30%

IEX 353K

6.17%

3.37%

NYSE Arca 265K

4.63%

6.92%

Cboe EDGX 251K

4.39%

5.17%

Cboe BZX 243K

4.24%

3.55%

MEMX 145K

2.53%

2.54%

NYSE 102K

1.79%

1.36%

MIAX Pearl 63K

1.10%

1.15%

Cboe EDGA 27K

0.47%

0.59%

Cboe BYX 17K

0.30%

0.39%

NYSE American 8K

0.15%

0.11%

Nasdaq BX 7K

0.12%

0.14%

NYSE National 6K

0.11%

0.28%

Nasdaq PHLX 3K

0.05%

0.08%

CHX 100

0.00%

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 3,056,835, which is 53.45% of today's total volume.
Today's Lit volume is 2,662,737, which is 46.55%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 52.04%.
The average Lit volume has been 47.96%.

ALT Volume by Exchange

Off Exchange

Nasdaq GSM

IEX

NYSE Arca

Cboe EDGX

Cboe BZX

MEMX

NYSE

MIAX Pearl

Cboe EDGA

Cboe BYX