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GOSS
Gossamer Bio, Inc. Common Stock
stock NASDAQ

At Close

Aug 28, 2026 3:59:43 PM EDT

0.1700USD+0.176%(+0.0003)7,920,886

0.00Bid 0.00Ask 0.0000Spread

Pre-market

Aug 28, 2026 9:29:30 AM EDT

0.1732USD+1.822%(+0.0031)55,344

After-hours

Aug 28, 2026 4:59:30 PM EDT

0.1715USD+0.646%(+0.0011)62,464

OverviewOptionsHistoricalDark Pool PrintsShortsMore

GOSS Volume Aug 28, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	69.95	4,832,007	68.72
Nasdaq GSM	10.07	695,447	7.61
NYSE Arca	6.64	458,730	10.18
MEMX	3.84	265,248	4.08
Cboe EDGX	2.79	192,544	3.32
Cboe BZX	1.80	124,134	1.88
Cboe EDGA	1.56	107,971	1.52
MIAX Pearl	1.24	85,429	0.65
IEX	0.98	67,776	0.90
NYSE	0.35	23,959	0.47
Cboe BYX	0.33	22,608	0.33
NYSE National	0.18	12,395	0.12
24X National	0.15	10,557	0.05
Nasdaq BX	0.06	4,172	0.07
NYSE American	0.05	3,734	0.05
Nasdaq PHLX	0.01	900	0.03
CHX	0.00	0	0.02
LTSE	0.00	0	0.01
Texas Stock Exchange LLC	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.

GOSS Nutrition Facts

0.17 servings per container

Serving size

39.77M

Calories

6.91M

% Day

% Avg

Off Exchange¹ 5M

69.95%

68.72%

Nasdaq GSM 695K

10.07%

7.61%

NYSE Arca 459K

6.64%

10.18%

MEMX 265K

3.84%

4.08%

Cboe EDGX 193K

2.79%

3.32%

Cboe BZX 124K

1.80%

1.88%

Cboe EDGA 108K

1.56%

1.52%

MIAX Pearl 85K

1.24%

0.65%

IEX 68K

0.98%

0.90%

NYSE 24K

0.35%

0.47%

Cboe BYX 23K

0.33%

NYSE National 12K

0.18%

0.12%

24X National 11K

0.15%

0.05%

Nasdaq BX 4K

0.06%

0.07%

NYSE American 4K

0.05%

Nasdaq PHLX 900

0.01%

0.03%

CHX 0

0.00%

0.02%

LTSE 0

0.00%

0.01%

Texas Stock Exchange LLC 0

0.00%

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

chartexchange.com

GOSS Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 4,832,007, which is 69.95% of today's total volume.
Today's Lit volume is 2,075,604, which is 30.05%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 68.72%.
The average Lit volume has been 31.28%.

GOSS Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

MEMX

Cboe EDGX

Cboe BZX

Cboe EDGA

MIAX Pearl

IEX

NYSE

Cboe BYX