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MRSN
Mersana Therapeutics, Inc. Common Stock
stock NASDAQ

At Close

Nov 3, 2025 3:59:50 PM EST

9.45USD-1.357%(-0.13)42,031

0.00Bid 0.00Ask 0.00Spread

Pre-market

Nov 3, 2025 8:38:30 AM EST

9.39USD-1.983%(-0.19)446

After-hours

Nov 3, 2025 4:00:30 PM EST

9.44USD-0.106%(-0.01)243

OverviewOptionsHistoricalDark Pool LevelsShortsMore

MRSN Volume Nov 3, 2025

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	33.23	13,971	48.97
Nasdaq GSM	32.90	13,830	26.09
NYSE Arca	10.98	4,617	6.12
Cboe EDGX	8.46	3,557	9.75
IEX	4.60	1,936	1.99
Cboe BZX	3.06	1,287	2.36
Nasdaq PHLX	2.09	877	0.27
NYSE	1.73	728	0.94
MEMX	1.66	696	1.68
MIAX Pearl	1.23	516	0.74
Cboe EDGA	0.05	20	0.15
CHX	0.02	7	0.02
Cboe BYX	0.00	0	0.49
Nasdaq BX	0.00	0	0.25
NYSE National	0.00	0	0.12
NYSE American	0.00	0	0.05

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

MRSN Nutrition Facts

0.71 servings per container

Serving size

59.17K

Calories

42.04K

% Day

% Avg

Off Exchange¹ 14K

33.23%

48.97%

Nasdaq GSM 14K

32.90%

26.09%

NYSE Arca 5K

10.98%

6.12%

Cboe EDGX 4K

8.46%

9.75%

IEX 2K

4.60%

1.99%

Cboe BZX 1K

3.06%

2.36%

Nasdaq PHLX 877

2.09%

0.27%

NYSE 728

1.73%

0.94%

MEMX 696

1.66%

1.68%

MIAX Pearl 516

1.23%

0.74%

Cboe EDGA 20

0.05%

0.15%

CHX 7

0.02%

Cboe BYX 0

0.00%

0.49%

Nasdaq BX 0

0.00%

0.25%

NYSE National 0

0.00%

0.12%

NYSE American 0

0.00%

0.05%

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

chartexchange.com

MRSN Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 13,971, which is 33.23% of today's total volume.
Today's Lit volume is 28,071, which is 66.77%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 48.97%.
The average Lit volume has been 51.03%.

MRSN Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

Cboe EDGX

IEX

Cboe BZX

Nasdaq PHLX

NYSE

MEMX

MIAX Pearl

Cboe EDGA