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Artal Group S.A.
> MRSN
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | Mersana Therapeutics, Inc. | MRSN | 3,029,555 | 813,767 | 9,967,000 | 860,000 | $3.29 |
| 03/31/2023 | Mersana Therapeutics, Inc. | MRSN | 2,215,788 | 15,788 | 9,107,000 | -5,765,000 | $4.11 |
| 09/30/2022 | Mersana Therapeutics, Inc. | MRSN | 2,200,000 | 0 | 14,872,000 | 4,708,000 | $6.76 |
| 06/30/2022 | Mersana Therapeutics, Inc. | MRSN | 2,200,000 | 0 | 10,164,000 | 1,386,000 | $4.62 |
| 03/31/2022 | Mersana Therapeutics, Inc. | MRSN | 2,200,000 | 1,000,000 | 8,778,000 | 1,314,000 | $3.99 |
| 12/31/2021 | Mersana Therapeutics, Inc. | MRSN | 1,200,000 | 0 | 7,464,000 | -3,852,000 | $6.22 |
| 09/30/2021 | Mersana Therapeutics, Inc. | MRSN | 1,200,000 | 0 | 11,316,000 | -4,980,000 | $9.43 |
| 06/30/2021 | Mersana Therapeutics, Inc. | MRSN | 1,200,000 | 0 | 16,296,000 | -15,636,000 | $13.58 |
| 12/31/2020 | Mersana Therapeutics, Inc. | MRSN | 1,200,000 | 200,000 | 31,932,000 | 13,312,000 | $26.61 |
| 09/30/2020 | Mersana Therapeutics, Inc. | MRSN | 1,000,000 | 200,000 | 18,620,000 | -100,000 | $18.62 |
| 06/30/2020 | Mersana Therapeutics, Inc. | MRSN | 800,000 | 800,000 | 18,720,000 | 18,720,000 | $23.40 |
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