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BlackRock Inc.
> MRSN
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | Mersana Therapeutics, Inc. | MRSN | 7,963,982 | 490,160 | 26,201,501,000 | -4,515,905,000 | $3,290.00 |
| 03/31/2023 | Mersana Therapeutics, Inc. | MRSN | 7,473,822 | 385,735 | 30,717,406,000 | 30,669,490,000 | $4,110.00 |
| 09/30/2022 | Mersana Therapeutics, Inc. | MRSN | 7,088,087 | -1,792,932 | 47,916,000 | 6,886,000 | $6.76 |
| 06/30/2022 | Mersana Therapeutics, Inc. | MRSN | 8,881,019 | 1,254,823 | 41,030,000 | 10,603,000 | $4.62 |
| 03/31/2022 | Mersana Therapeutics, Inc. | MRSN | 7,626,196 | 146,967 | 30,427,000 | -16,093,000 | $3.99 |
| 12/31/2021 | Mersana Therapeutics, Inc. | MRSN | 7,479,229 | -1,328,099 | 46,520,000 | -36,535,000 | $6.22 |
| 09/30/2021 | Mersana Therapeutics, Inc. | MRSN | 8,807,328 | -15,376 | 83,055,000 | -36,759,000 | $9.43 |
| 06/30/2021 | Mersana Therapeutics, Inc. | MRSN | 8,822,704 | 820,618 | 119,814,000 | -9,658,000 | $13.58 |
| 03/31/2021 | Mersana Therapeutics, Inc. | MRSN | 8,002,086 | 14,274 | 129,472,000 | -83,084,000 | $16.18 |
| 12/31/2020 | Mersana Therapeutics, Inc. | MRSN | 7,987,812 | 735,806 | 212,556,000 | 77,525,000 | $26.61 |
| 09/30/2020 | Mersana Therapeutics, Inc. | MRSN | 7,252,006 | 114,266 | 135,031,000 | -31,992,000 | $18.62 |
| 06/30/2020 | Mersana Therapeutics, Inc. | MRSN | 7,137,740 | 3,851,261 | 167,023,000 | 147,863,000 | $23.40 |
| 03/31/2020 | Mersana Therapeutics, Inc. | MRSN | 3,286,479 | 821,160 | 19,160,000 | 5,034,000 | $5.83 |
| 12/31/2019 | Mersana Therapeutics, Inc. | MRSN | 2,465,319 | 33,576 | 14,126,000 | 10,283,000 | $5.73 |
| 09/30/2019 | Mersana Therapeutics, Inc. | MRSN | 2,431,743 | 41,280 | 3,843,000 | 3,833,319 | $1.58 |
| 06/30/2019 | Mersana Therapeutics, Inc. | MRSN | 2,390,463 | 1,492,618 | 9,681 | -4,713,319 | $0.00 |
| 03/31/2019 | Mersana Therapeutics, Inc. | MRSN | 897,845 | 116,717 | 4,723,000 | 1,536,000 | $5.26 |
| 12/31/2018 | Mersana Therapeutics, Inc. | MRSN | 781,128 | -243,914 | 3,187,000 | -7,063,000 | $4.08 |
| 09/30/2018 | Mersana Therapeutics, Inc. | MRSN | 1,025,042 | 18,685 | 10,250,000 | -7,723,000 | $10.00 |
| 06/30/2018 | Mersana Therapeutics, Inc. | MRSN | 1,006,357 | 188,353 | 17,973,000 | 5,074,000 | $17.86 |
| 03/31/2018 | Mersana Therapeutics, Inc. | MRSN | 818,004 | 240,705 | 12,899,000 | 3,414,000 | $15.77 |
| 12/31/2017 | Mersana Therapeutics, Inc. | MRSN | 577,299 | 313,516 | 9,485,000 | 4,924,000 | $16.43 |
| 09/30/2017 | Mersana Therapeutics, Inc. | MRSN | 263,783 | 263,783 | 4,561,000 | 4,561,000 | $17.29 |
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