Mersana Therapeutics (MRSN) Short Interest Ratio & Short Volume

$1.97

+0.07 (+3.68%)

(As of 10/11/2024 ET)

Mersana Therapeutics Short Interest Data

Mersana Therapeutics (MRSN) has a short interest of 9.53 million shares. This marks a -7.57% decrease in short interest from the previous month. The short interest ratio (days to cover) is 8.2, indicating that it would take 8.2 days of the average trading volume of 1.69 million shares to cover all short positions.

Current Short Interest: 9,530,000 shares
Previous Short Interest: 10,310,000 shares
Change Vs. Previous Month: -7.57%
Dollar Volume Sold Short: $18.01 million
Short Interest Ratio: 8.2 Days to Cover
Last Record Date: September 30, 2024

Outstanding Shares: 122,361,000 shares
Percentage of Shares Shorted: 7.79%
Today's Trading Volume: 549,201 shares
Average Trading Volume: 1,692,408 shares
Today's Volume Vs. Average: 32%

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Short Interest Chart Days to Cover Chart Short Percent of Float Chart

MRSN Short Interest Over Time

MRSN Days to Cover Over Time

MRSN Percentage of Float Shorted Over Time

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Mersana Therapeutics Short Interest History

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Report Date	Total Shares Sold Short	Dollar Volume Sold Short	Change from Previous Report	Percentage of Float Shorted	Days to Cover	Price on Report Date
9/30/2024	9,530,000 shares	$18.01 million	-7.6%	N/A	8.2	$1.89
9/15/2024	10,310,000 shares	$21.75 million	+0.3%	N/A	8.8	$2.11
8/31/2024	10,280,000 shares	$16.24 million	+21.1%	N/A	8.4	$1.58
8/15/2024	8,490,000 shares	$12.65 million	-6.8%	N/A	6.2	$1.49
7/31/2024	9,110,000 shares	$18.22 million	-4.8%	N/A	6.1	$2.00
7/15/2024	9,570,000 shares	$19.91 million	-1.1%	N/A	6.2	$2.08
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6/30/2024	9,680,000 shares	$19.46 million	-7.4%	N/A	5.9	$2.01
6/15/2024	10,450,000 shares	$21.63 million	-5.5%	N/A	6	$2.07
5/31/2024	11,060,000 shares	$25.77 million	+23.0%	N/A	5.8	$2.33
5/15/2024	8,990,000 shares	$23.10 million	-17.7%	N/A	4.2	$2.57
4/30/2024	10,920,000 shares	$34.62 million	+3.2%	N/A	5	$3.17
4/15/2024	10,580,000 shares	$40.10 million	+4.4%	N/A	4.8	$3.79
3/31/2024	10,130,000 shares	$45.38 million	+16.0%	N/A	4.3	$4.48
3/15/2024	8,730,000 shares	$44.00 million	+22.3%	N/A	3.8	$5.04
2/29/2024	7,140,000 shares	$38.84 million	+0.6%	N/A	3.4	$5.44
2/15/2024	7,100,000 shares	$27.26 million	+6.8%	N/A	3.6	$3.84
1/31/2024	6,650,000 shares	$21.01 million	-10.0%	N/A	3.5	$3.16
1/15/2024	7,390,000 shares	$22.32 million	-11.9%	N/A	3.6	$3.02
12/31/2023	8,390,000 shares	$19.46 million	-0.8%	N/A	4.1	$2.32
12/15/2023	8,460,000 shares	$17.34 million	-28.7%	N/A	4.3	$2.05
11/30/2023	11,870,000 shares	$19.59 million	-13.9%	N/A	5.4	$1.65
11/15/2023	13,790,000 shares	$21.24 million	+22.3%	N/A	6.6	$1.54
10/31/2023	11,280,000 shares	$13.42 million	+0.1%	N/A	5.2	$1.19
10/15/2023	11,270,000 shares	$17.47 million	+10.5%	N/A	1.7	$1.55
9/30/2023	10,200,000 shares	$12.95 million	-10.7%	N/A	1.6	$1.27
9/15/2023	11,420,000 shares	$16.22 million	+8.4%	N/A	1.8	$1.42
8/31/2023	10,540,000 shares	$11.70 million	-13.0%	N/A	1.4	$1.11
8/15/2023	12,120,000 shares	$15.27 million	-9.5%	N/A	1.7	$1.26
7/31/2023	13,390,000 shares	$16.40 million	+118.8%	N/A	1.8	$1.23
7/15/2023	6,120,000 shares	$22.34 million	-3.0%	N/A	1.9	$3.65
6/30/2023	6,310,000 shares	$20.76 million	+26.0%	N/A	2	$3.29
6/15/2023	5,010,000 shares	$19.49 million	-14.8%	N/A	1.7	$3.89
5/31/2023	5,880,000 shares	$44.22 million	-9.4%	N/A	3.1	$7.52
5/15/2023	6,490,000 shares	$51.60 million	-11.6%	N/A	3.6	$7.95
4/30/2023	7,340,000 shares	$32.15 million	+1.1%	N/A	4.3	$4.38
4/15/2023	7,260,000 shares	$30.13 million	-0.6%	N/A	5.8	$4.15
3/31/2023	7,300,000 shares	$30.00 million	+16.6%	N/A	5.6	$4.11
3/15/2023	6,260,000 shares	$28.48 million	-10.3%	N/A	4.8	$4.55
2/28/2023	6,980,000 shares	$42.30 million	+20.1%	N/A	5.9	$6.06
2/15/2023	5,810,000 shares	$36.95 million	+1.9%	N/A	5.1	$6.36
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1/31/2023	5,700,000 shares	$37.51 million	+9.2%	N/A	5.2	$6.58
1/15/2023	5,220,000 shares	$31.63 million	+3.6%	N/A	4.8	$6.06
12/30/2022	5,040,000 shares	$29.53 million	+11.8%	N/A	4.8	$5.86
12/15/2022	4,510,000 shares	$31.12 million	-5.1%	N/A	4.4	$6.90
11/30/2022	4,750,000 shares	$31.64 million	+0.4%	N/A	4.7	$6.66
11/15/2022	4,730,000 shares	$32.73 million	-12.4%	N/A	4.5	$6.92
10/31/2022	5,400,000 shares	$42.44 million	-6.3%	N/A	4.9	$7.86
10/15/2022	5,760,000 shares	$37.90 million	+7.9%	N/A	4.2	$6.58
9/30/2022	5,340,000 shares	$36.10 million	+38.0%	N/A	3.9	$6.76
9/15/2022	3,870,000 shares	$29.57 million	+8.4%	N/A	2.7	$7.64
8/31/2022	3,570,000 shares	$26.78 million	+3.2%	N/A	2.4	$7.50
8/15/2022	3,460,000 shares	$26.68 million	-9.9%	N/A	2.4	$7.71
7/31/2022	3,840,000 shares	$19.47 million	-19.5%	N/A	2.6	$5.07
7/15/2022	4,770,000 shares	$26.86 million	-19.6%	N/A	4	$5.63
6/30/2022	5,930,000 shares	$27.40 million	-1.3%	N/A	4.2	$4.62
6/15/2022	6,010,000 shares	$19.05 million	+2.4%	N/A	4.1	$3.17
5/31/2022	5,870,000 shares	$19.61 million	+26.5%	N/A	4	$3.34
5/15/2022	4,640,000 shares	$13.83 million	+8.4%	N/A	3	$2.98
4/30/2022	4,280,000 shares	$14.89 million	+23.7%	N/A	2.4	$3.48
4/15/2022	3,460,000 shares	$16.99 million	-3.4%	N/A	1.8	$4.91
3/31/2022	3,580,000 shares	$14.28 million	-24.2%	N/A	1.9	$3.99
3/15/2022	4,720,000 shares	$18.46 million	+9.8%	N/A	2.7	$3.91
2/28/2022	4,300,000 shares	$18.88 million	+2.4%	N/A	2.7	$4.39
2/15/2022	4,200,000 shares	$17.26 million	-25.3%	6.9%	2.6	$4.11
1/31/2022	5,620,000 shares	$26.81 million	+14.2%	9.1%	4.1	$4.77
1/15/2022	4,920,000 shares	$30.90 million	+13.6%	8.0%	4.9	$6.28
12/31/2021	4,330,000 shares	$26.93 million	+1.4%	7.0%	4.7	$6.22
12/15/2021	4,270,000 shares	$24.55 million	No Change	6.7%	5.8	$5.75
11/30/2021	4,270,000 shares	$28.78 million	-1.4%	6.7%	5.1	$6.74
11/15/2021	4,330,000 shares	$38.75 million	-13.2%	6.8%	5.4	$8.95
10/29/2021	4,990,000 shares	$42.71 million	-4.0%	7.9%	6.6	$8.56
10/15/2021	5,200,000 shares	$44.15 million	-1.0%	8.2%	6.4	$8.49
9/30/2021	5,250,000 shares	$49.51 million	+1.4%	8.3%	7	$9.43
9/15/2021	5,180,000 shares	$46.62 million	-6.8%	8.2%	6.6	$9.00
8/31/2021	5,560,000 shares	$77.45 million	-12.7%	8.8%	7.7	$13.93
8/13/2021	6,370,000 shares	$77.52 million	-6.9%	10.1%	10.7	$12.17
7/30/2021	6,840,000 shares	$75.24 million	-1.6%	11.0%	11.2	$11.00
7/15/2021	6,950,000 shares	$87.29 million	-6.3%	10.8%	12.5	$12.56
6/30/2021	7,420,000 shares	$100.76 million	-14.0%	11.6%	12.9	$13.58
6/15/2021	8,630,000 shares	$126.00 million	+2.1%	13.4%	13.9	$14.60
5/28/2021	8,450,000 shares	$121.00 million	-2.7%	13.2%	14.4	$14.32
5/14/2021	8,680,000 shares	$124.56 million	+5.0%	N/A	13.5	$14.35
4/30/2021	8,270,000 shares	$137.12 million	-3.8%	N/A	12.1	$16.58
4/15/2021	8,600,000 shares	$147.40 million	-12.3%	N/A	11.3	$17.14
3/31/2021	9,810,000 shares	$150.19 million	+13.8%	N/A	11	$15.31
3/15/2021	8,620,000 shares	$155.16 million	-1.9%	N/A	7.8	$18.00
2/26/2021	8,790,000 shares	$161.47 million	+3.5%	N/A	7.7	$18.37
2/12/2021	8,490,000 shares	$194.93 million	+3.4%	N/A	7.4	$22.96
1/29/2021	8,210,000 shares	$152.95 million	+2.5%	N/A	7	$18.63
1/15/2021	8,010,000 shares	$166.29 million	+6.9%	N/A	7	$20.76
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12/31/2020	7,490,000 shares	$199.08 million	+11.5%	N/A	7.2	$26.58
12/15/2020	6,720,000 shares	$171.49 million	-5.0%	N/A	8.2	$25.52
11/30/2020	7,070,000 shares	$177.53 million	+1.6%	N/A	6.7	$25.11
11/15/2020	6,960,000 shares	$156.88 million	+6.6%	N/A	7.1	$22.54
10/30/2020	6,530,000 shares	$116.76 million	-4.5%	N/A	7	$17.88
10/15/2020	6,840,000 shares	$130.71 million	+2.2%	N/A	7.5	$19.11
9/30/2020	6,690,000 shares	$124.57 million	+19.0%	N/A	7.3	$18.62
9/15/2020	5,620,000 shares	$128.75 million	-3.8%	N/A	5.7	$22.91
8/31/2020	5,840,000 shares	$111.89 million	No Change	N/A	7.5	$19.16
8/14/2020	5,840,000 shares	$108.51 million	+20.9%	N/A	3.1	$18.58
7/31/2020	4,830,000 shares	$96.02 million	+5.9%	N/A	2.6	$19.88
7/15/2020	4,560,000 shares	$103.06 million	+1.1%	N/A	2.4	$22.60
6/30/2020	4,510,000 shares	$105.53 million	+47.9%	N/A	2.2	$23.40
6/15/2020	3,050,000 shares	$64.66 million	-17.8%	N/A	1.4	$21.20
5/29/2020	3,710,000 shares	$73.05 million	+49.6%	N/A	1.8	$19.69
5/15/2020	2,480,000 shares	$24.82 million	+4.2%	5.4%	1.5	$10.01
4/30/2020	2,380,000 shares	$21.49 million	+2.6%	5.6%	2.4	$9.03
4/15/2020	2,320,000 shares	$19.77 million	-0.4%	6.8%	2.6	$8.52
3/31/2020	2,330,000 shares	$21.09 million	-4.4%	7.2%	2.8	$9.05
3/13/2020	2,438,200 shares	$22.99 million	-5.1%	7.8%	6.1	$9.43
2/28/2020	2,570,000 shares	$13.36 million	+8.9%	8.2%	5.8	$5.20
2/14/2020	2,360,000 shares	$16.73 million	+3.5%	6.8%	5.6	$7.09
1/31/2020	2,280,000 shares	$21.16 million	+26.7%	7.1%	5.7	$9.28
1/15/2020	1,800,000 shares	$14.00 million	+68.2%	5.6%	4.7	$7.78
12/31/2019	1,070,000 shares	$7.94 million	+29.5%	3.3%	3.4	$7.42

MRSN Short Interest - Frequently Asked Questions

What is Mersana Therapeutics' current short interest?: Short interest is the volume of Mersana Therapeutics shares that have been sold short but have not yet been closed out or covered. As of September 30th, traders have sold 9,530,000 shares of MRSN short. Learn More on Mersana Therapeutics' current short interest.
What is a good short interest ratio for Mersana Therapeutics?: The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. MRSN shares currently have a short interest ratio of 8.0. Learn More on Mersana Therapeutics's short interest ratio.
Is Mersana Therapeutics' short interest increasing or decreasing?: Mersana Therapeutics saw a decrease in short interest in the month of September. As of September 30th, there was short interest totaling 9,530,000 shares, a decrease of 7.6% from the previous total of 10,310,000 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment.
How does Mersana Therapeutics' short interest compare to its competitors?: Here is how the short interest of companies in the sector of "medical" compare to Mersana Therapeutics: Immatics (11.24%), Cullinan Therapeutics, Inc. (23.62%), ArriVent BioPharma, Inc. (17.28%), Sana Biotechnology, Inc. (25.89%), AnaptysBio, Inc. (23.08%), Prothena Co. plc (9.86%), Phibro Animal Health Co. (1.96%), Applied Therapeutics, Inc. (10.76%), CARGO Therapeutics, Inc. (16.05%), IGM Biosciences, Inc. (19.25%),

Which stocks are the most shorted right now?: As of the most recent reporting period, the following stocks had the largest short interest positions: Charter Communications, Inc. ($4.04 billion), AppLovin Co. ($2.69 billion), Nu Holdings Ltd. ($2.64 billion), Paychex, Inc. ($2.61 billion), Cencora, Inc. ($2.30 billion), Aptiv PLC ($2.09 billion), Moderna, Inc. ($2.09 billion), Tractor Supply ($2.04 billion), Coinbase Global, Inc. ($1.97 billion), and International Paper ($1.95 billion). View all of the most shorted stocks.
What does it mean to sell short Mersana Therapeutics stock?: Short selling MRSN is an investing strategy that aims to generate trading profit from Mersana Therapeutics as its price is falling. MRSN shares are trading up $0.07 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit.
How does a short squeeze work against Mersana Therapeutics?: A short squeeze for Mersana Therapeutics occurs when it has a large amount of short interest and its stock increases in price. This forces short sellers to cover their short interest positions by buying actual shares of MRSN, which in turn drives the price of the stock up even further.
How often is Mersana Therapeutics' short interest reported?: Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including MRSN, twice per month. The most recent reporting period available is September, 30 2024.