Wed, July 30, 2025
Tue, July 29, 2025
Mon, July 28, 2025

As of Jul 29th, 2025, there has been substantial selling of Mersana Therapeutics, Inc. in recent trading

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The chart below shows ALL of the short selling each day in MERSANA THERAPEUTICS, INC. (MRSN). We have consolidated the tape of ALL US stock exchanges and dark pools (this means we get the TRADE IDENTIFIER showing whether the trade was a buy, sell or sell short). The data below shows just the short sales each day in your stock. It includes both EXEMPT (market makers) and NON-EXEMPT (everyone else) short sales in MERSANA THERAPEUTICS, INC.. An average of 40.42% of the daily trading in MRSN is short selling. This is abnormally high and implies there is illicit trading taking place in your stock. We run automated surveillance and reporting algorithms that report manipulative market making and short selling (to FINRA, SEC, Whistleblower's Office and Dept of Treasury FINCEN). We then issue FINRA COMPLIANT research to our large user base to counteract this activity that is driving MRSN lower unfairly.


You can find the full report at [ https://www.woprai.com/ ]

Please find the applicable data below, drawn from all major market providers.
DateShort VolumeTotal VolumePercentageSqueeze Trigger$ Value
2025-07-28104,937223,34546.987.01735,608
2025-07-252,676,8665,441,22349.20.306819,121
2025-07-243,155,8559,180,33134.380.3281,035,120
2025-07-231,089,8234,096,19726.610.399434,839
2025-07-22152,135960,36015.840.35954,616
2025-07-21447,8081,767,42325.340.364163,002
2025-07-18546,6881,483,26736.860.359196,261
2025-07-17952,0792,840,83733.510.364346,557
2025-07-16335,7601,029,99932.60.337113,218
2025-07-15774,2381,397,69455.390.328253,950
2025-07-14461,9161,323,38134.90.341157,513
2025-07-111,638,3934,505,58836.360.362593,098
2025-07-101,427,7956,350,48622.480.369526,856
2025-07-091,054,0123,077,50134.250.337355,202
2025-07-08853,5002,295,88737.180.313267,146
2025-07-07581,6882,305,01425.240.309179,742
2025-07-03648,4931,798,85236.050.291188,711
2025-07-02709,0192,182,61632.480.279197,816
2025-07-011,039,1862,736,91937.970.286297,207
2025-06-302,113,5723,554,81359.460.291615,049
2025-06-272,449,80412,627,82419.40.296725,142
2025-06-261,587,0742,859,82955.50.333528,496
2025-06-25434,5151,225,94635.440.346150,342
2025-06-24161,0361,101,27214.620.34856,041
2025-06-23752,9081,710,66244.010.343258,247
2025-06-20614,9561,554,35839.560.361221,999
2025-06-18341,156807,73042.240.356121,452
2025-06-17656,6471,442,69345.520.363238,363
2025-06-16341,8331,504,08322.730.378129,213
2025-06-13418,7621,306,09732.060.361151,173
2025-06-12847,4162,143,51439.530.366310,154
2025-06-111,396,4262,474,43456.430.399557,174
2025-06-101,784,8684,355,26540.980.422753,214
2025-06-09658,4662,346,91228.060.389256,143
2025-06-061,202,0312,703,20344.470.387465,186
2025-06-05689,3061,236,68155.740.368253,665
2025-06-04701,1291,211,50157.870.357250,303
 
Total963,129,2782,382,513,26840.423.913,768,485,479
 
* Totals include all data records back to 2020-07-30 00:00:00, data set is truncated for viewing.