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MILLENNIUM MANAGEMENT LLC
> MRSN
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | Mersana Therapeutics, Inc. | MRSN | 1,871,917 | -1,791,610 | 6,158,607,000 | 6,137,139,000 | $3,290.00 |
| 12/31/2022 | Mersana Therapeutics, Inc. | MRSN | 3,663,527 | -120,648 | 21,468,000 | -4,113,000 | $5.86 |
| 09/30/2022 | Mersana Therapeutics, Inc. | MRSN | 3,784,175 | -598,526 | 25,581,000 | 5,333,000 | $6.76 |
| 06/30/2022 | Mersana Therapeutics, Inc. | MRSN | 4,382,701 | -501,048 | 20,248,000 | 762,000 | $4.62 |
| 03/31/2022 | Mersana Therapeutics, Inc. | MRSN | 4,883,749 | 4,247,665 | 19,486,000 | 15,530,000 | $3.99 |
| 12/31/2021 | Mersana Therapeutics, Inc. | MRSN | 636,084 | 532,347 | 3,956,000 | 2,978,000 | $6.22 |
| 09/30/2021 | Mersana Therapeutics, Inc. | MRSN | 103,737 | -222,406 | 978,000 | -3,451,000 | $9.43 |
| 06/30/2021 | Mersana Therapeutics, Inc. | MRSN | 326,143 | 38,472 | 4,429,000 | -226,000 | $13.58 |
| 03/31/2021 | Mersana Therapeutics, Inc. | MRSN | 287,671 | 287,671 | 4,655,000 | 4,655,000 | $16.18 |
| 12/31/2020 | Mersana Therapeutics, Inc. | MRSN | 0 | -776,938 | 0 | -18,180,000 | |
| 06/30/2020 | Mersana Therapeutics, Inc. | MRSN | 776,938 | 263,639 | 18,180,000 | 15,187,000 | $23.40 |
| 03/31/2020 | Mersana Therapeutics, Inc. | MRSN | 513,299 | -290,242 | 2,993,000 | -1,611,000 | $5.83 |
| 12/31/2019 | Mersana Therapeutics, Inc. | MRSN | 803,541 | 761,017 | 4,604,000 | 4,537,000 | $5.73 |
| 09/30/2019 | Mersana Therapeutics, Inc. | MRSN | 42,524 | -27,458 | 67,000 | -216,000 | $1.58 |
| 06/30/2019 | Mersana Therapeutics, Inc. | MRSN | 69,982 | -25,732 | 283,000 | -220,000 | $4.04 |
| 03/31/2019 | Mersana Therapeutics, Inc. | MRSN | 95,714 | 51,458 | 503,000 | 322,000 | $5.26 |
| 12/31/2018 | Mersana Therapeutics, Inc. | MRSN | 44,256 | -325,467 | 181,000 | -3,516,000 | $4.09 |
| 09/30/2018 | Mersana Therapeutics, Inc. | MRSN | 369,723 | 246,670 | 3,697,000 | 1,499,000 | $10.00 |
| 06/30/2018 | Mersana Therapeutics, Inc. | MRSN | 123,053 | 123,053 | 2,198,000 | 2,198,000 | $17.86 |
| 12/31/2017 | Mersana Therapeutics, Inc. | MRSN | 0 | -55,256 | 0 | -955,000 | |
| 09/30/2017 | Mersana Therapeutics, Inc. | MRSN | 55,256 | -5,773 | 955,000 | 102,000 | $17.28 |
| 06/30/2017 | Mersana Therapeutics, Inc. | MRSN | 61,029 | 61,029 | 853,000 | 853,000 | $13.98 |
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