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MARSHALL WACE, LLP
> MRSN
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | Mersana Therapeutics, Inc. | MRSN | 2,711,310 | 187,326 | 8,920,210,000 | -5,870,336,000 | $3,290.00 |
| 12/31/2022 | Mersana Therapeutics, Inc. | MRSN | 2,523,984 | 1,995,516 | 14,790,546,000 | 14,786,974,000 | $5,860.00 |
| 09/30/2022 | Mersana Therapeutics, Inc. | MRSN | 528,468 | 528,468 | 3,572,000 | 3,572,000 | $6.76 |
| 06/30/2022 | Mersana Therapeutics, Inc. | MRSN | 0 | -32,667 | 0 | -130,000 | |
| 03/31/2022 | Mersana Therapeutics, Inc. | MRSN | 32,667 | 32,667 | 130,000 | 130,000 | $3.98 |
| 12/31/2021 | Mersana Therapeutics, Inc. | MRSN | 0 | -384,736 | 0 | -3,628,000 | |
| 09/30/2021 | Mersana Therapeutics, Inc. | MRSN | 384,736 | 364,891 | 3,628,000 | 3,359,000 | $9.43 |
| 06/30/2021 | Mersana Therapeutics, Inc. | MRSN | 19,845 | -132,265 | 269,000 | -2,192,000 | $13.56 |
| 03/31/2021 | Mersana Therapeutics, Inc. | MRSN | 152,110 | 53,012 | 2,461,000 | -175,000 | $16.18 |
| 12/31/2020 | Mersana Therapeutics, Inc. | MRSN | 99,098 | 99,098 | 2,636,000 | 2,636,000 | $26.60 |
| 12/31/2019 | Mersana Therapeutics, Inc. | MRSN | 0 | -121,543 | 0 | -192,000 | |
| 09/30/2019 | Mersana Therapeutics, Inc. | MRSN | 121,543 | -50,838 | 192,000 | -506,000 | $1.58 |
| 06/30/2019 | Mersana Therapeutics, Inc. | MRSN | 172,381 | 145,640 | 698,000 | 557,000 | $4.05 |
| 03/31/2019 | Mersana Therapeutics, Inc. | MRSN | 26,741 | 26,741 | 141,000 | 141,000 | $5.27 |
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