| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 06/14/2023 | Seer, Inc. | SEER | Grant | Stock Option (right to buy) | 34.7k | $4.33 | $150.4k | | 06/14/2023 |
| 06/14/2023 | Seer, Inc. | SEER | Grant | Class A Common Stock | 23.4k | $0.00 | $0 | | 06/14/2023 |
| 08/17/2022 | Frequency Therapeutics, Inc. | FREQ | Grant | Stock Option | 14.8k | $2.14 | $31.8k | | 08/17/2022 |
| 08/17/2022 | Frequency Therapeutics, Inc. | FREQ | Disposition | Stock Option | 14.8k | $18.63 | $276.6k | | 08/17/2022 |
| 08/17/2022 | Frequency Therapeutics, Inc. | FREQ | Disposition | Stock Option | 14.8k | $10.14 | $150.5k | | 08/17/2022 |
| 06/21/2022 | Frequency Therapeutics, Inc. | FREQ | Grant | Stock Option | 14.8k | $1.17 | $17.4k | | 06/21/2022 |
| 06/15/2022 | Seer, Inc. | SEER | Grant | Class A Common Stock | 9.9k | $0.00 | $0 | | 06/15/2022 |
| 06/15/2022 | Seer, Inc. | SEER | Grant | Stock Option (right to buy) | 29.6k | $7.33 | $217.3k | | 06/15/2022 |
| 04/28/2022 | Moderna, Inc. | MRNA | Exercise | Restricted Stock Units | 703 | $0.00 | $0 | | 04/28/2022 |
| 04/28/2022 | Moderna, Inc. | MRNA | Grant | Stock Option (Right to Buy) | 5.4k | $142.52 | $771.7k | | 04/28/2022 |
| 01/10/2022 | Seer, Inc. | SEER | Conversion | Class A Common Stock | 327.1k | $0.00 | $0 | | 01/10/2022 |
| 01/10/2022 | Seer, Inc. | SEER | Conversion | Class B Common Stock | 327.1k | $0.00 | $0 | | 01/10/2022 |
| 06/17/2021 | Frequency Therapeutics, Inc. | FREQ | Grant | Stock Option | 14.8k | $10.14 | $150.5k | | 06/17/2021 |
| 06/17/2021 | Seer, Inc. | SEER | Grant | Stock Option (right to buy) | 15k | $33.74 | $506.1k | | 06/17/2021 |
| 04/28/2021 | Moderna, Inc. | MRNA | Grant | Restricted Stock Units | 703 | $0.00 | $0 | | 04/28/2021 |
| 04/28/2021 | Moderna, Inc. | MRNA | Grant | Stock Option (Right to Buy) | 4.1k | $178.68 | $729.2k | | 04/28/2021 |
| 12/08/2020 | Seer, Inc. | SEER | Conversion | Class A Common Stock | 205.8k | $0.00 | $0 | | 12/08/2020 |
| 12/08/2020 | Seer, Inc. | SEER | Conversion | Series A Convertible Preferred Stock | 205.8k | $0.00 | $0 | | 12/08/2020 |
| 12/03/2020 | Seer, Inc. | SEER | Grant | Stock Option (right to buy) | 18.7k | $19.00 | $355.1k | | 12/03/2020 |
| 11/17/2020 | Frequency Therapeutics, Inc. | FREQ | Gift | Common Stock | 56.9k | $0.00 | $0 | | 11/17/2020 |
| 06/11/2020 | Frequency Therapeutics, Inc. | FREQ | Grant | Stock Option | 14.8k | $18.63 | $276.6k | | 06/11/2020 |
| 05/05/2020 | Lyra Therapeutics, Inc. | LYRA | Conversion | Common Stock | 668 | $0.00 | $0 | | 05/05/2020 |
| 05/05/2020 | Lyra Therapeutics, Inc. | LYRA | Conversion | Series A-1/A Convertible Preferred Stock | 23.1k | $0.00 | $0 | | 05/05/2020 |
| 04/30/2020 | Lyra Therapeutics, Inc. | LYRA | Grant | Stock Option | 14.5k | $16.00 | $232k | | 04/30/2020 |
| 04/29/2020 | Moderna, Inc. | MRNA | Grant | Stock Option (Right to Buy) | 18.3k | $46.37 | $847.2k | | 04/29/2020 |
| 10/14/2019 | Rubius Therapeutics, Inc. | RUBY | Sale | Common Stock | 7.5k | $8.52 | $63.9k | | 10/14/2019 |
| 10/14/2019 | Rubius Therapeutics, Inc. | RUBY | Exercise | Stock Option (Right to Buy) | 7.5k | $0.15 | $1.1k | | 10/14/2019 |
| 07/15/2019 | Rubius Therapeutics, Inc. | RUBY | Sale | Common Stock | 7.5k | $14.94 | $112k | | 07/15/2019 |
| 07/15/2019 | Rubius Therapeutics, Inc. | RUBY | Exercise | Stock Option (Right to Buy) | 7.5k | $0.15 | $1.1k | | 07/15/2019 |
| 06/27/2019 | Moderna, Inc. | MRNA | Grant | Stock Option (Right to Buy) | 54.7k | $14.34 | $783.8k | | 06/27/2019 |
| 05/23/2019 | Rubius Therapeutics, Inc. | RUBY | Grant | Stock Option (Right to Buy) | 25k | $16.27 | $406.8k | | 05/23/2019 |
| 04/15/2019 | Rubius Therapeutics, Inc. | RUBY | Sale | Common Stock | 7.5k | $17.57 | $131.8k | | 04/15/2019 |
| 04/15/2019 | Rubius Therapeutics, Inc. | RUBY | Exercise | Stock Option (Right to Buy) | 7.5k | $0.15 | $1.1k | | 04/15/2019 |
| 01/14/2019 | Rubius Therapeutics, Inc. | RUBY | Sale | Common Stock | 7.5k | $14.59 | $109.4k | | 01/14/2019 |
| 01/14/2019 | Rubius Therapeutics, Inc. | RUBY | Exercise | Stock Option (Right to Buy) | 7.5k | $0.15 | $1.1k | | 01/14/2019 |
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