Dark

MRSN
Mersana Therapeutics, Inc. Common Stock
stock NASDAQ

Inactive

Jan 5, 2026

29.08USD+0.138%(+0.04)712,460

Pre-market

0.00USD-100.000%(-29.04)0

After-hours

0.00USD0.000%(0.00)0

OverviewOptionsHistoricalDark Pool LevelsShortsMore

MRSN Volume Dec 31, 1969

Exchange	Day%	Volume	30D%
Nasdaq GSM	61.50	438,173	36.95
Off Exchange¹	26.03	185,476	38.93
Cboe EDGX	5.38	38,361	6.53
NYSE Arca	2.93	20,843	7.65
IEX	0.92	6,582	3.28
Cboe EDGA	0.64	4,541	0.42
CHX	0.52	3,725	0.82
NYSE National	0.44	3,112	0.60
Cboe BZX	0.40	2,876	1.68
Nasdaq BX	0.38	2,730	0.68
NYSE	0.27	1,944	0.45
Cboe BYX	0.24	1,744	0.51
MEMX	0.19	1,351	1.28
Nasdaq PHLX	0.07	482	0.12
NYSE American	0.06	423	0.03
MIAX Pearl	0.01	97	0.06

chartexchange.com

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

MRSN Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 185,476, which is 26.03% of today's total volume.
Today's Lit volume is 526,984, which is 73.97%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 38.93%.
The average Lit volume has been 61.07%.

MRSN Volume by Exchange

Nasdaq GSM

Off Exchange

Cboe EDGX

NYSE Arca

IEX

Cboe EDGA

CHX

NYSE National

Cboe BZX

Nasdaq BX

NYSE