| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | SVP, Chief Sci.&Tech. Officer | Jan 16, 2024 | Sale | $2.71 | 10,409 | 28,208 | 199,329 | Jan 17, 2024, 05:19 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | SVP, Chief Sci.&Tech. Off. | Jan 17, 2023 | Sale | $5.74 | 6,233 | 35,777 | 180,363 | Jan 18, 2023, 08:14 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | SVP, Chief Sci.&Tech. Off. | Dec 14, 2022 | Option Exercise | $1.49 | 35,361 | 52,658 | 166,595 | Dec 16, 2022, 04:46 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech Off. | Jan 18, 2022 | Sale | $5.92 | 4,741 | 28,067 | 131,234 | Jan 19, 2022, 06:25 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Dec 20, 2021 | Option Exercise | $1.40 | 45,593 | 63,830 | 120,766 | Dec 20, 2021, 05:01 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Aug 20, 2021 | Option Exercise | $6.16 | 2,216 | 13,651 | 77,389 | Aug 24, 2021, 04:31 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Aug 20, 2021 | Sale | $11.01 | 2,216 | 24,398 | 75,173 | Aug 24, 2021, 04:31 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Jul 20, 2021 | Sale | $12.11 | 2,227 | 26,969 | 75,173 | Jul 22, 2021, 04:32 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Jul 20, 2021 | Option Exercise | $6.16 | 2,227 | 13,718 | 77,400 | Jul 22, 2021, 04:32 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Jul 16, 2021 | Sale | $12.47 | 7,775 | 96,954 | 83,669 | Jul 19, 2021, 08:50 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Jul 19, 2021 | Sale | $12.02 | 8,496 | 102,122 | 75,173 | Jul 19, 2021, 08:50 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | CS & Technology Officer | Jul 08, 2021 | Option Exercise | $1.40 | 20,000 | 28,000 | 51,444 | Jul 09, 2021, 05:25 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | CS & Technology Officer | Jul 01, 2021 | Sale | $13.60 | 1,886 | 25,650 | 31,444 | Jul 02, 2021, 04:32 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | CS & Technology Officer | Jul 01, 2021 | Option Exercise | $3.52 | 1,886 | 6,644 | 33,330 | Jul 02, 2021, 04:32 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Jun 21, 2021 | Option Exercise | $6.16 | 2,220 | 13,670 | 33,662 | Jun 23, 2021, 04:30 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Jun 21, 2021 | Sale | $13.78 | 2,220 | 30,592 | 31,444 | Jun 23, 2021, 04:30 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Apr 20, 2021 | Option Exercise | $4.95 | 4,102 | 20,300 | 33,671 | Apr 22, 2021, 04:16 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Apr 20, 2021 | Sale | $15.91 | 4,102 | 65,263 | 31,444 | Apr 22, 2021, 04:16 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Mar 22, 2021 | Option Exercise | $4.95 | 8,203 | 40,596 | 33,671 | Mar 24, 2021, 05:00 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Mar 22, 2021 | Sale | $17.50 | 8,203 | 143,553 | 31,444 | Mar 24, 2021, 05:00 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Feb 22, 2021 | Option Exercise | $4.95 | 8,203 | 40,596 | 33,671 | Feb 24, 2021, 05:00 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Feb 22, 2021 | Sale | $20.01 | 8,203 | 164,142 | 31,444 | Feb 24, 2021, 05:00 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Jan 20, 2021 | Option Exercise | $4.95 | 8,203 | 40,596 | 33,671 | Jan 22, 2021, 05:00 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Jan 20, 2021 | Sale | $21.54 | 8,203 | 176,693 | 31,444 | Jan 22, 2021, 05:00 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Jan 15, 2021 | Option Exercise | $21.09 | 2,324 | 49,013 | 31,444 | Jan 20, 2021, 07:05 PM | |
| [MRSN] | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Dec 28, 2020 | Option Exercise | $1.40 | 9,000 | 12,600 | 25,851 | Dec 30, 2020, 05:00 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Dec 21, 2020 | Option Exercise | $4.95 | 8,203 | 40,596 | 2,227 | Dec 22, 2020, 04:34 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Dec 21, 2020 | Sale | $25.60 | 8,203 | 209,956 | 0 | Dec 22, 2020, 04:34 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Nov 20, 2020 | Sale | $23.05 | 8,203 | 189,079 | 0 | Nov 24, 2020, 04:31 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Nov 20, 2020 | Option Exercise | $4.95 | 8,203 | 40,596 | 2,227 | Nov 24, 2020, 04:31 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Oct 20, 2020 | Option Exercise | $2.56 | 20,953 | 53,605 | 16,851 | Oct 22, 2020, 04:31 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Oct 20, 2020 | Sale | $16.74 | 4,102 | 68,667 | 0 | Oct 22, 2020, 04:31 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Oct 21, 2020 | Option Exercise | $4.95 | 4,101 | 20,296 | 19,078 | Oct 22, 2020, 04:31 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science & Tech. Officer | Oct 21, 2020 | Sale | $17.50 | 4,101 | 71,768 | 16,851 | Oct 22, 2020, 04:31 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science, Tech. Officer | Sep 21, 2020 | Option Exercise | $4.95 | 8,203 | 40,596 | 16,865 | Sep 23, 2020, 04:30 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Science, Tech. Officer | Sep 21, 2020 | Sale | $20.66 | 20,614 | 425,832 | 12,411 | Sep 23, 2020, 04:30 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Scientific Officer | Sep 24, 2018 | Option Exercise | $1.40 | 3,500 | 4,900 | 15,991 | Sep 25, 2018, 05:07 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Scientific Officer | Sep 24, 2018 | Sale | $11.63 | 3,500 | 40,705 | 12,491 | Sep 25, 2018, 05:07 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Scientific Officer | Aug 27, 2018 | Option Exercise | $7.43 | 3,500 | 26,005 | 15,991 | Aug 29, 2018, 04:24 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Scientific Officer | Aug 27, 2018 | Sale | $13.15 | 3,500 | 46,025 | 12,491 | Aug 29, 2018, 04:24 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Scientific Officer | Jul 23, 2018 | Sale | $11.06 | 3,500 | 38,710 | 12,491 | Jul 25, 2018, 04:04 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Scientific Officer | Jul 03, 2018 | Option Exercise | $1.40 | 10,000 | 14,000 | 15,991 | Jul 05, 2018, 06:59 PM | |
| MRSN | Mersana Therapeutics, Inc. | Lowinger Timothy B | Chief Scientific Officer | Feb 21, 2018 | Option Exercise | $6.98 | 5,911 | 41,259 | 5,911 | Feb 23, 2018, 04:01 PM |
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