| 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 |
|---|---|---|---|---|---|---|---|
| 2025-11-11 (Tuesday) | 3,032 | USD 27,015![]() | USD 27,015 | 0 | USD 909 | USD 8.90996 | USD 8.61016 |
| 2025-11-10 (Monday) | 3,032![]() | USD 26,106![]() | USD 26,106 | 8 | USD 674 | USD 8.61016 | USD 8.41005 |
| 2025-11-07 (Friday) | 3,024 | USD 25,432![]() | USD 25,432 | 0 | USD 1,119 | USD 8.41005 | USD 8.04001 |
| 2025-11-06 (Thursday) | 3,024![]() | USD 24,313![]() | USD 24,313 | 8 | USD -1,202 | USD 8.04001 | USD 8.45988 |
| 2025-11-05 (Wednesday) | 3,016 | USD 25,515![]() | USD 25,515 | 0 | USD 904 | USD 8.45988 | USD 8.16015 |
| 2025-11-04 (Tuesday) | 3,016![]() | USD 24,611![]() | USD 24,611 | 8 | USD -3,785 | USD 8.16015 | USD 9.44016 |
| 2025-11-03 (Monday) | 3,008 | USD 28,396![]() | USD 28,396 | 0 | USD -421 | USD 9.44016 | USD 9.58012 |
| 2025-10-31 (Friday) | 3,008 | USD 28,817![]() | USD 28,817 | 0 | USD 843 | USD 9.58012 | USD 9.29987 |
| 2025-10-30 (Thursday) | 3,008![]() | USD 27,974![]() | USD 27,974 | 40 | USD -400 | USD 9.29987 | USD 9.55997 |
| 2025-10-29 (Wednesday) | 2,968![]() | USD 28,374![]() | USD 28,374 | 16 | USD -1,825 | USD 9.55997 | USD 10.23 |
| 2025-10-28 (Tuesday) | 2,952 | USD 30,199![]() | USD 30,199 | 0 | USD -1,063 | USD 10.23 | USD 10.5901 |
| 2025-10-27 (Monday) | 2,952 | USD 31,262![]() | USD 31,262 | 0 | USD 2,391 | USD 10.5901 | USD 9.78015 |
| Date | Action | Quantity | Market High | Market Low | Likely Trade Price | Likely Trade Value (Profit/Loss) | Average Price previous trades |
|---|---|---|---|---|---|---|---|
| 2025-11-10 | BUY | 8 | 8.710 | 8.260 | 8.305 | USD 66 | 2.36 |
| 2025-11-06 | BUY | 8 | 8.867 | 8.000 | 8.087 | USD 65 | 2.29 |
| 2025-11-04 | BUY | 8 | 9.065 | 8.000 | 8.106 | USD 65 | 2.21 |
| 2025-10-30 | BUY | 40 | 9.610 | 9.240 | 9.277 | USD 371 | 2.08 |
| 2025-10-29 | BUY | 16 | 9.560 | 10.030 | 9.983 | USD 160 | 2.03 |
| 2025-10-22 | SELL | -32 | 9.190 | 9.990 | 9.910 | USD -317 | 1.76 Loss of -261 on sale |
| 2025-10-20 | BUY | 16 | 10.420 | 10.420 | 10.420 | USD 167 | 1.65 |
| 2025-10-17 | BUY | 40 | 9.880 | 10.765 | 10.677 | USD 427 | 1.59 |
| 2025-10-15 | BUY | 64 | 10.530 | 11.150 | 11.088 | USD 710 | 1.53 |
| 2025-10-03 | BUY | 56 | 8.280 | 8.280 | 8.280 | USD 464 | 1.42 |
| 2025-10-02 | BUY | 8 | 8.000 | 8.045 | 8.041 | USD 64 | 1.38 |
| 2025-09-30 | BUY | 16 | 7.760 | 8.220 | 8.174 | USD 131 | 1.29 |
| 2025-09-26 | BUY | 16 | 7.570 | 7.570 | 7.570 | USD 121 | 1.19 |
| 2025-09-25 | BUY | 16 | 7.170 | 7.390 | 7.368 | USD 118 | 1.15 |
| 2025-09-18 | BUY | 8 | 7.350 | 7.400 | 7.395 | USD 59 | 1.06 |
| 2025-09-17 | BUY | 24 | 7.150 | 7.430 | 7.402 | USD 178 | 1.02 |
| 2025-08-20 | SELL | -32 | 7.290 | 7.392 | 7.382 | USD -236 | 0.82 Loss of -210 on sale |
| 2025-07-30 | BUY | 32 | 6.750 | 7.040 | 7.011 | USD 224 | 0.53 |
| 2025-07-28 | SELL | -63,177 | 6.830 | 7.600 | 7.523 | USD -475,281 | 0.42 Loss of -448,463 on sale |
| 2025-07-17 | SELL | -406 | 9.075 | 9.450 | 9.412 | USD -3,821 | 0.43 Loss of -3,647 on sale |
| 2025-07-11 | SELL | -1,624 | 8.600 | 9.750 | 9.635 | USD -15,647 | 0.43 Loss of -14,946 on sale |
| 2025-07-07 | BUY | 609 | 7.600 | 7.825 | 7.802 | USD 4,752 | 0.44 |
| 2025-07-02 | BUY | 11,055 | 7.000 | 7.250 | 7.225 | USD 79,872 | 0.44 |
| 2025-06-11 | BUY | 402 | 9.500 | 10.750 | 10.625 | USD 4,271 | 0.44 |
| 2025-06-10 | BUY | 402 | 10.175 | 11.500 | 11.368 | USD 4,570 | 0.44 |
| 2025-06-04 | SELL | -201 | 9.225 | 9.225 | 9.225 | USD -1,854 | 0.45 Loss of -1,764 on sale |
| 2025-04-23 | BUY | 201 | 9.750 | 10.750 | 10.650 | USD 2,141 | 0.49 |
| 2025-04-10 | SELL | -1,616 | 6.525 | 7.550 | 7.448 | USD -12,035 | 0.51 Loss of -11,205 on sale |
| 2025-04-08 | SELL | -202 | 7.325 | 8.425 | 8.315 | USD -1,680 | 0.52 Loss of -1,574 on sale |
| 2025-04-07 | SELL | -202 | 7.625 | 8.275 | 8.210 | USD -1,658 | 0.53 Loss of -1,552 on sale |
| 2025-04-04 | SELL | -1,010 | 7.575 | 8.275 | 8.205 | USD -8,287 | 0.53 Loss of -7,751 on sale |
| 2025-04-01 | BUY | 808 | 8.350 | 9.100 | 9.025 | USD 7,292 | 0.54 |
| 2025-03-31 | SELL | -606 | 8.600 | 9.500 | 9.410 | USD -5,702 | 0.54 Loss of -5,373 on sale |
| 2025-03-14 | SELL | -3,232 | 11.625 | 12.000 | 11.963 | USD -38,663 | 0.58 Loss of -36,802 on sale |
| 2025-03-07 | SELL | -404 | 13.600 | 13.875 | 13.848 | USD -5,594 | 0.59 Loss of -5,357 on sale |
| 2025-03-04 | SELL | -202 | 12.700 | 13.350 | 13.285 | USD -2,684 | 0.60 Loss of -2,563 on sale |
| 2025-02-25 | BUY | 404 | 13.200 | 14.250 | 14.145 | USD 5,715 | 0.61 |
| 2025-02-19 | SELL | -202 | 13.925 | 15.000 | 14.893 | USD -3,008 | 0.63 Loss of -2,881 on sale |
| 2025-02-13 | BUY | 606 | 15.225 | 16.375 | 16.260 | USD 9,854 | 0.64 |
| 2025-02-12 | BUY | 202 | 16.125 | 17.500 | 17.363 | USD 3,507 | 0.64 |
| 2025-02-11 | BUY | 808 | 16.625 | 17.600 | 17.503 | USD 14,142 | 0.64 |
* (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.