| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 10/02/2023 | Mersana Therapeutics, Inc. | MRSN | Grant | Stock Option (right to buy) | 9.1k | $1.26 | $11.5k | | 10/02/2023 |
| 08/16/2023 | Xilio Therapeutics, Inc. | | Grant | Stock Option (right to buy) | 136.5k | $2.79 | $380.2k | | 08/16/2023 |
| 07/03/2023 | Mersana Therapeutics, Inc. | MRSN | Grant | Stock Option (right to buy) | 4.5k | $3.42 | $15.3k | | 07/03/2023 |
| 06/08/2023 | Mersana Therapeutics, Inc. | MRSN | Grant | Common Stock | 14.5k | $0.00 | $0 | | 06/08/2023 |
| 06/08/2023 | Mersana Therapeutics, Inc. | MRSN | Grant | Stock Option (right to buy) | 18.4k | $8.64 | $158.6k | | 06/08/2023 |
| 04/03/2023 | Mersana Therapeutics, Inc. | MRSN | Grant | Stock Option (right to buy) | 3.4k | $4.25 | $14.3k | | 04/03/2023 |
| 01/01/2023 | Xilio Therapeutics, Inc. | | Grant | Stock Option (right to buy) | 136.5k | $2.69 | $367.2k | | 01/01/2023 |
| 06/15/2022 | Xilio Therapeutics, Inc. | | Grant | Stock Option (right to buy) | 20k | $2.28 | $45.6k | | 06/15/2022 |
| 06/15/2022 | Xilio Therapeutics, Inc. | | Grant | Stock Option (right to buy) | 20k | $2.28 | $45.6k | | 06/15/2022 |
| 06/09/2022 | Mersana Therapeutics, Inc. | MRSN | Grant | Stock Option (right to buy) | 45k | $3.62 | $162.9k | | 06/09/2022 |
| 02/22/2022 | Xilio Therapeutics, Inc. | | Grant | Stock Option (right to buy) | 65k | $12.66 | $822.9k | | 02/22/2022 |
| 01/03/2022 | Mersana Therapeutics, Inc. | MRSN | Grant | Stock Option (right to buy) | 10.2k | $6.44 | $65.6k | | 01/03/2022 |
| 10/21/2021 | Xilio Therapeutics, Inc. | | Grant | Stock Option (right to buy) | 157.1k | $16.00 | $2.5M | | 10/21/2021 |
| 09/15/2021 | Syndax Pharmaceuticals Inc | SNDX | Grant | Stock Options (Right to buy) | 35k | $19.36 | $677.6k | | 09/15/2021 |
| 06/11/2021 | Mersana Therapeutics, Inc. | MRSN | Grant | Stock Option (right to buy) | 25k | $14.90 | $373.2k | | 06/11/2021 |
| 01/15/2021 | Mersana Therapeutics, Inc. | MRSN | Grant | Stock Option (right to buy) | 2.5k | $21.09 | $52.5k | | 01/15/2021 |
| 04/13/2020 | Mersana Therapeutics, Inc. | MRSN | Grant | Stock Option (right to buy | 48.1k | $8.57 | $412.2k | | 04/13/2020 |
| 01/22/2019 | TESARO, Inc. | TSRO | Disposition | Employee Stock Option (right to buy) | 39.9k | $55.84 | $2.2M | | 01/22/2019 |
| 01/22/2019 | TESARO, Inc. | TSRO | Disposition | Employee Stock Option (right to buy) | 10.8k | $178.95 | $1.9M | | 01/22/2019 |
| 01/22/2019 | TESARO, Inc. | TSRO | Disposition | Employee Stock Option (right to buy) | 35k | $43.39 | $1.5M | | 01/22/2019 |
| 01/22/2019 | TESARO, Inc. | TSRO | Disposition | Employee Stock Option (right to buy) | 75k | $55.14 | $4.1M | | 01/22/2019 |
| 01/22/2019 | TESARO, Inc. | TSRO | Disposition | Restricted Stock Units | 22.7k | $0.00 | $0 | | 01/22/2019 |
| 01/22/2019 | TESARO, Inc. | TSRO | Disposition | Restricted Stock Units | 4.4k | $0.00 | $0 | | 01/22/2019 |
| 01/22/2019 | TESARO, Inc. | TSRO | Disposition | Restricted Stock Units | 8.8k | $0.00 | $0 | | 01/22/2019 |
| 01/22/2019 | TESARO, Inc. | TSRO | Disposition | Restricted Stock Units | 1.2k | $0.00 | $0 | | 01/22/2019 |
| 01/22/2019 | TESARO, Inc. | TSRO | Other | Common Stock | 12.2k | $75.00 | $915.4k | | 01/22/2019 |
| 09/24/2018 | TESARO, Inc. | TSRO | Sale | Common Stock | 371 | $37.63 | $14k | | 09/21/2018 |
| 09/21/2018 | TESARO, Inc. | TSRO | Exercise | Restricted Stock Units | 1.2k | $0.00 | $0 | | 09/21/2018 |
| 03/02/2018 | TESARO, Inc. | TSRO | Sale | Common Stock | 1.8k | $54.86 | $98.9k | | 03/01/2018 |
| 03/01/2018 | TESARO, Inc. | TSRO | Exercise | Restricted Stock Units | 4.4k | $0.00 | $0 | | 03/01/2018 |
| 03/01/2018 | TESARO, Inc. | TSRO | Exercise | Restricted Stock Units | 1.5k | $0.00 | $0 | | 03/01/2018 |
| 03/01/2018 | TESARO, Inc. | TSRO | Grant | Restricted Stock Units | 22.7k | $0.00 | $0 | | 03/01/2018 |
| 03/01/2018 | TESARO, Inc. | TSRO | Grant | Employee Stock Option (right to buy) | 39.9k | $55.84 | $2.2M | | 03/01/2018 |
| 12/04/2017 | TESARO, Inc. | TSRO | Sale | Common Stock | 829 | $85.24 | $70.7k | | 12/01/2017 |
| 12/01/2017 | TESARO, Inc. | TSRO | Exercise | Restricted Stock Units | 1.8k | $0.00 | $0 | | 12/01/2017 |
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