| Stock Name / Fund | iShares Nasdaq US Biotechnology UCITS ETF USD (Acc) |
| Issuer | Blackrock |
| Entity holding fund | iShares IV Public Limited Company |
| Entity Type | Umbrella investment company with variable capital and having segregated liability between its funds |
| Entity LEI | 549300ZP07LMR36K1T02 |
| ETF Ticker | BTEC(USD) LSE |
| ETF Ticker | BTEK(GBP) LSE |
| ETF Ticker | 2B70(EUR) F |
| ETF Ticker | 2B70.DE(EUR) CXE |
| ETF Ticker | BTEC.LS(USD) CXE |
| ETF Ticker | BTEK.LS(GBP) CXE |
| ETF Ticker | BTEC.L(GBP) LSE |
| ETF Ticker | BTEK.L(GBP) LSE |
| Stock Name | Mersana Therapeutics Inc |
| Ticker | MRSN(USD) NASDAQ |
| TYPE | Common Stock |
| Country | USA |
| ISIN | US59045L1061 |
| LEI | 529900VWD5VDZ7PVOS22 |
| Date | Number of MRSN Shares Held | Base Market Value of MRSN Shares | Local Market Value of MRSN Shares | Change in MRSN Shares Held | Change in MRSN Base Value | Current Price per MRSN Share Held | Previous Price per MRSN Share Held |
|---|---|---|---|---|---|---|---|
| 2025-12-18 (Thursday) | 3,432 | USD 99,871![]() | USD 99,871 | 0 | USD 137 | USD 29.0999 | USD 29.06 |
| 2025-12-17 (Wednesday) | 3,432![]() | USD 99,734![]() | USD 99,734 | -40 | USD -1,110 | USD 29.06 | USD 29.0449 |
| 2025-12-16 (Tuesday) | 3,472![]() | USD 100,844![]() | USD 100,844 | -8 | USD 1,351 | USD 29.0449 | USD 28.5899 |
| 2025-12-15 (Monday) | 3,480![]() | USD 99,493![]() | USD 99,493 | 16 | USD 1,289 | USD 28.5899 | USD 28.3499 |
| 2025-12-12 (Friday) | 3,464 | USD 98,204![]() | USD 98,204 | 0 | USD 415 | USD 28.3499 | USD 28.2301 |
| 2025-12-11 (Thursday) | 3,464![]() | USD 97,789![]() | USD 97,789 | 16 | USD 866 | USD 28.2301 | USD 28.1099 |
| 2025-12-10 (Wednesday) | 3,448 | USD 96,923![]() | USD 96,923 | 0 | USD -104 | USD 28.1099 | USD 28.1401 |
| Date | Action | Quantity | Market High | Market Low | Likely Trade Price | Likely Trade Value (Profit/Loss) | Average Price previous trades |
|---|---|---|---|---|---|---|---|
| 2025-12-17 | SELL | -40 | 29.190 | 28.550 | 28.614 | USD -1,145 | 5.45 Loss of -926 on sale |
| 2025-12-16 | SELL | -8 | 29.120 | 28.375 | 28.450 | USD -228 | 5.35 Loss of -185 on sale |
| 2025-12-15 | BUY | 16 | 28.800 | 28.280 | 28.332 | USD 453 | 5.25 |
| 2025-12-11 | BUY | 16 | 28.410 | 28.100 | 28.131 | USD 450 | 5.05 |
| 2025-12-04 | BUY | 160 | 28.360 | 27.310 | 27.415 | USD 4,386 | 4.55 |
| 2025-12-02 | BUY | 120 | 27.693 | 27.361 | 27.394 | USD 3,287 | 4.34 |
| 2025-11-28 | BUY | 8 | 27.580 | 27.300 | 27.328 | USD 219 | 4.13 |
| 2025-11-26 | BUY | 24 | 27.850 | 27.250 | 27.310 | USD 655 | 3.92 |
| 2025-11-26 | BUY | 24 | 27.850 | 27.250 | 27.310 | USD 655 | 3.92 |
| 2025-11-25 | BUY | 40 | 27.610 | 27.270 | 27.304 | USD 1,092 | 3.81 |
| 2025-11-24 | BUY | 8 | 27.785 | 27.150 | 27.213 | USD 218 | 3.70 |
| 2025-11-20 | SELL | -32 | 28.000 | 27.260 | 27.334 | USD -875 | 3.49 Loss of -763 on sale |
| 2025-11-19 | BUY | 8 | 27.950 | 27.423 | 27.476 | USD 220 | 3.37 |
| 2025-11-18 | BUY | 48 | 27.990 | 27.500 | 27.549 | USD 1,322 | 3.26 |
| 2025-11-17 | BUY | 16 | 28.050 | 27.543 | 27.594 | USD 442 | 3.15 |
| 2025-11-14 | BUY | 8 | 28.120 | 27.110 | 27.211 | USD 218 | 3.03 |
| 2025-11-12 | BUY | 8 | 8.880 | 8.450 | 8.493 | USD 68 | 2.88 |
| 2025-11-10 | BUY | 8 | 8.710 | 8.260 | 8.305 | USD 66 | 2.83 |
| 2025-11-06 | BUY | 8 | 8.867 | 8.000 | 8.087 | USD 65 | 2.78 |
| 2025-11-04 | BUY | 8 | 9.065 | 8.000 | 8.106 | USD 65 | 2.72 |
| 2025-10-30 | BUY | 40 | 9.610 | 9.240 | 9.277 | USD 371 | 2.62 |
| 2025-10-29 | BUY | 16 | 9.560 | 10.030 | 9.983 | USD 160 | 2.59 |
| 2025-10-22 | SELL | -32 | 9.190 | 9.990 | 9.910 | USD -317 | 2.40 Loss of -240 on sale |
| 2025-10-20 | BUY | 16 | 10.420 | 10.420 | 10.420 | USD 167 | 2.32 |
| 2025-10-17 | BUY | 40 | 9.880 | 10.765 | 10.677 | USD 427 | 2.28 |
| 2025-10-15 | BUY | 64 | 10.530 | 11.150 | 11.088 | USD 710 | 2.23 |
| 2025-10-09 | BUY | 88 | 9.070 | 9.500 | 9.457 | USD 832 | 2.11 |
| 2025-10-06 | BUY | 24 | 8.200 | 8.350 | 8.335 | USD 200 | 2.05 |
| 2025-10-03 | BUY | 56 | 8.280 | 8.280 | 8.280 | USD 464 | 2.02 |
| 2025-10-02 | BUY | 8 | 8.000 | 8.045 | 8.041 | USD 64 | 1.98 |
| 2025-09-30 | BUY | 16 | 7.760 | 8.220 | 8.174 | USD 131 | 1.92 |
| 2025-09-26 | BUY | 16 | 7.570 | 7.570 | 7.570 | USD 121 | 1.86 |
| 2025-09-25 | BUY | 16 | 7.170 | 7.390 | 7.368 | USD 118 | 1.83 |
| 2025-09-18 | BUY | 8 | 7.350 | 7.400 | 7.395 | USD 59 | 1.76 |
| 2025-09-17 | BUY | 24 | 7.150 | 7.430 | 7.402 | USD 178 | 1.73 |
| 2025-09-11 | SELL | -8 | 7.470 | 7.531 | 7.525 | USD -60 | 1.60 Loss of -47 on sale |
| 2025-09-10 | BUY | 16 | 7.350 | 7.700 | 7.665 | USD 123 | 1.57 |
| 2025-09-05 | SELL | -8 | 6.820 | 7.250 | 7.207 | USD -58 | 1.47 Loss of -46 on sale |
| 2025-08-29 | SELL | -24 | 7.320 | 7.850 | 7.797 | USD -187 | 1.33 Loss of -155 on sale |
| 2025-08-27 | BUY | 16 | 7.630 | 7.739 | 7.728 | USD 124 | 1.25 |
| 2025-08-26 | SELL | -8 | 7.650 | 7.710 | 7.704 | USD -62 | 1.21 Loss of -52 on sale |
| 2025-08-25 | BUY | 8 | 7.650 | 8.090 | 8.046 | USD 64 | 1.17 |
| 2025-08-20 | SELL | -32 | 7.290 | 7.392 | 7.382 | USD -236 | 1.09 Loss of -201 on sale |
| 2025-08-18 | BUY | 16 | 7.380 | 7.680 | 7.650 | USD 122 | 1.01 |
| 2025-08-08 | SELL | -16 | 6.300 | 6.600 | 6.570 | USD -105 | 0.83 Loss of -92 on sale |
| 2025-08-05 | BUY | 8 | 7.040 | 7.050 | 7.049 | USD 56 | 0.71 |
| 2025-08-01 | SELL | -24 | 6.600 | 6.801 | 6.781 | USD -163 | 0.63 Loss of -148 on sale |
| 2025-07-30 | BUY | 32 | 6.750 | 7.040 | 7.011 | USD 224 | 0.54 |
| 2025-07-28 | SELL | -63,177 | 6.830 | 7.600 | 7.523 | USD -475,281 | 0.45 Loss of -446,811 on sale |
| 2025-07-17 | SELL | -406 | 9.075 | 9.450 | 9.412 | USD -3,821 | 0.46 Loss of -3,636 on sale |
| 2025-07-11 | SELL | -1,624 | 8.600 | 9.750 | 9.635 | USD -15,647 | 0.46 Loss of -14,901 on sale |
| 2025-07-07 | BUY | 609 | 7.600 | 7.825 | 7.802 | USD 4,752 | 0.46 |
| 2025-07-02 | BUY | 11,055 | 7.000 | 7.250 | 7.225 | USD 79,872 | 0.47 |
| 2025-06-25 | BUY | 402 | 8.775 | 8.875 | 8.865 | USD 3,564 | 0.47 |
| 2025-06-11 | BUY | 402 | 9.500 | 10.750 | 10.625 | USD 4,271 | 0.48 |
| 2025-06-10 | BUY | 402 | 10.175 | 11.500 | 11.368 | USD 4,570 | 0.48 |
| 2025-06-04 | SELL | -201 | 9.225 | 9.225 | 9.225 | USD -1,854 | 0.49 Loss of -1,756 on sale |
| 2025-04-23 | BUY | 201 | 9.750 | 10.750 | 10.650 | USD 2,141 | 0.54 |
| 2025-04-10 | SELL | -1,616 | 6.525 | 7.550 | 7.448 | USD -12,035 | 0.56 Loss of -11,122 on sale |
| 2025-04-08 | SELL | -202 | 7.325 | 8.425 | 8.315 | USD -1,680 | 0.57 Loss of -1,564 on sale |
| 2025-04-07 | SELL | -202 | 7.625 | 8.275 | 8.210 | USD -1,658 | 0.58 Loss of -1,542 on sale |
| 2025-04-04 | SELL | -1,010 | 7.575 | 8.275 | 8.205 | USD -8,287 | 0.58 Loss of -7,699 on sale |
| 2025-04-01 | BUY | 808 | 8.350 | 9.100 | 9.025 | USD 7,292 | 0.59 |
| 2025-03-31 | SELL | -606 | 8.600 | 9.500 | 9.410 | USD -5,702 | 0.59 Loss of -5,342 on sale |
| 2025-03-14 | SELL | -3,232 | 11.625 | 12.000 | 11.963 | USD -38,663 | 0.63 Loss of -36,624 on sale |
| 2025-03-07 | SELL | -404 | 13.600 | 13.875 | 13.848 | USD -5,594 | 0.65 Loss of -5,333 on sale |
| 2025-03-04 | SELL | -202 | 12.700 | 13.350 | 13.285 | USD -2,684 | 0.66 Loss of -2,551 on sale |
| 2025-02-25 | BUY | 404 | 13.200 | 14.250 | 14.145 | USD 5,715 | 0.68 |
| 2025-02-19 | SELL | -202 | 13.925 | 15.000 | 14.893 | USD -3,008 | 0.69 Loss of -2,868 on sale |
| 2025-02-13 | BUY | 606 | 15.225 | 16.375 | 16.260 | USD 9,854 | 0.71 |
| 2025-02-12 | BUY | 202 | 16.125 | 17.500 | 17.363 | USD 3,507 | 0.71 |
| 2025-02-11 | BUY | 808 | 16.625 | 17.600 | 17.503 | USD 14,142 | 0.71 |
| 2025-01-17 | BUY | 808 | 15.475 | 15.675 | 15.655 | USD 12,649 | 0.90 |
| 2025-01-16 | BUY | 808 | 15.350 | 16.200 | 16.115 | USD 13,021 | 0.95 |
| 2025-01-13 | SELL | -404 | 15.550 | 18.700 | 18.385 | USD -7,428 | 1.18 Loss of -6,951 on sale |
| 2025-01-08 | SELL | -808 | 32.500 | 35.225 | 34.952 | USD -28,242 | 1.40 Loss of -27,110 on sale |
* (if shown) = market close price used not a projected price. This is used when we do not have market data available to calculate a projection
The likely trade price/value is our estimate on the likely price the trade took place at and is not the actual trade price. The likely LOSS/GAIN is our estimate. Where a profit/loss value is shown in the Likely Trade Value column, this is derived from matching trades between periods eg the most recent previous BUY is matched with the SELL for the same number of shares and the difference between the likely BUY price and likely SELL price is calculated. Where a profit or loss is shown in the Average Price of Previous Trades column, this is dervied using the likely trade price compared to the average of previous trades based on adjusted close
| Date | Shorted Volume | Short Exempt Volume | Total Shares Traded | % Shorted |
|---|---|---|---|---|
| 2025-09-19 | 11,420 | 0 | 25,399 | 45.0% |
| 2025-09-18 | 6,174 | 0 | 16,119 | 38.3% |
| 2025-09-17 | 28,392 | 0 | 35,823 | 79.3% |
| 2025-09-16 | 4,327 | 9 | 7,877 | 54.9% |
| 2025-09-15 | 8,737 | 0 | 17,129 | 51.0% |
| 2025-09-12 | 5,260 | 531 | 13,196 | 39.9% |
| 2025-09-11 | 6,325 | 0 | 17,062 | 37.1% |
| 2025-09-10 | 15,102 | 0 | 27,410 | 55.1% |
| 2025-09-09 | 28,312 | 0 | 39,456 | 71.8% |
| 2025-09-08 | 13,430 | 0 | 27,271 | 49.2% |
| 2025-09-05 | 16,292 | 0 | 55,325 | 29.4% |
| 2025-09-04 | 7,706 | 0 | 21,954 | 35.1% |
| 2025-09-03 | 12,648 | 0 | 23,067 | 54.8% |
| 2025-09-02 | 12,245 | 0 | 23,550 | 52.0% |
| 2025-08-29 | 10,077 | 0 | 20,141 | 50.0% |
| 2025-08-28 | 10,471 | 0 | 16,729 | 62.6% |
| 2025-08-27 | 5,058 | 0 | 8,710 | 58.1% |
| 2025-08-26 | 10,251 | 0 | 21,683 | 47.3% |
| 2025-08-25 | 23,972 | 0 | 49,906 | 48.0% |
| 2025-08-22 | 17,681 | 0 | 43,869 | 40.3% |
| 2025-08-21 | 87,660 | 0 | 112,429 | 78.0% |
| 2025-08-20 | 7,317 | 0 | 14,385 | 50.9% |
| 2025-08-19 | 17,636 | 0 | 28,345 | 62.2% |
| 2025-08-18 | 25,509 | 2,242 | 39,553 | 64.5% |
| 2025-08-15 | 17,451 | 468 | 25,956 | 67.2% |
| 2025-08-14 | 62,862 | 6,150 | 102,194 | 61.5% |
| 2025-08-13 | 56,274 | 13,396 | 103,160 | 54.6% |
| 2025-08-12 | 12,461 | 0 | 21,489 | 58.0% |
| 2025-08-11 | 23,653 | 40 | 46,961 | 50.4% |
| 2025-08-08 | 20,839 | 409 | 39,631 | 52.6% |
| 2025-08-07 | 22,446 | 0 | 50,353 | 44.6% |
| 2025-08-06 | 12,420 | 0 | 22,413 | 55.4% |
| 2025-08-05 | 29,597 | 13 | 43,627 | 67.8% |
| 2025-08-04 | 11,704 | 2 | 32,944 | 35.5% |
| 2025-08-01 | 32,570 | 230 | 60,124 | 54.2% |
| 2025-07-31 | 30,742 | 0 | 52,968 | 58.0% |
| 2025-07-30 | 44,657 | 917 | 64,658 | 69.1% |
| 2025-07-29 | 61,547 | 2,578 | 105,146 | 58.5% |
| 2025-07-28 | 84,492 | 8,934 | 144,426 | 58.5% |
| 2025-07-25 | 2,145,045 | 205,985 | 3,599,127 | 59.6% |
| 2025-07-24 | 2,514,044 | 334,906 | 5,787,876 | 43.4% |
| 2025-07-23 | 804,967 | 17,113 | 2,855,615 | 28.2% |
| 2025-07-22 | 97,343 | 0 | 608,597 | 16.0% |
| 2025-07-21 | 380,922 | 199,167 | 1,315,942 | 28.9% |
| 2025-07-18 | 442,016 | 2,080 | 995,750 | 44.4% |
The data here is derived from FINRA daily shorted trade data. The Daily Short Sale Volume is the total volume of short trades that meet certain criteria on each trade date by 6 PM ET on the trade date. The detail trade data is derived from the monthly shorted trade data which will differ in aggregate. The detail trade data is derived from the transaction level data and includes ALL trades (including exempt) and the aggregation period extends beyond 6pm.
Note: All information is provided as is without warranty and should be used for indicative purposes only. You should independently check data before making any investment decision. This information is derived from third party sources and we cannot guarantee that their data is current, accurate, complete, free from defects etc and we therefore accept no responsibility for how it may be used. We accept no liability.
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