| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 03/01/2021 | Acacia Communications, Inc. | ACIA | Grant | Common Stock | 12.1k | $0.00 | $0 | | 03/01/2021 |
| 03/01/2021 | Acacia Communications, Inc. | ACIA | Disposition | Common Stock | 12.1k | $0.00 | $0 | | 03/01/2021 |
| 03/01/2021 | Acacia Communications, Inc. | ACIA | Disposition | Common Stock | 27.5k | $115.00 | $3.2M | | 03/01/2021 |
| 03/01/2021 | Acacia Communications, Inc. | ACIA | Disposition | Common Stock | 19.9k | $0.00 | $0 | | 03/01/2021 |
| 03/01/2021 | Acacia Communications, Inc. | ACIA | Disposition | Common Stock | 15.9k | $115.00 | $1.8M | John F Gavin Revocable Trust | 03/01/2021 |
| 03/01/2021 | Acacia Communications, Inc. | ACIA | Disposition | Stock option (right to buy) | 166.5k | $0.41 | $68.3k | | 03/01/2021 |
| 02/02/2021 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 4.5k | $114.45 | $515.6k | | 02/02/2021 |
| 01/19/2021 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 2.6k | $114.44 | $301k | | 01/15/2021 |
| 01/15/2021 | Acacia Communications, Inc. | ACIA | Grant | Common Stock | 8.7k | $0.00 | $0 | | 01/15/2021 |
| 03/18/2020 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 2.6k | $62.45 | $161.9k | | 03/18/2020 |
| 02/03/2020 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 4.6k | $67.96 | $310.4k | | 02/03/2020 |
| 08/14/2019 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 829 | $64.41 | $53.4k | | 08/14/2019 |
| 05/15/2019 | Acacia Communications, Inc. | ACIA | Sale | | 2.6k | $52.46 | $136.4k | | 05/15/2019 |
| 05/15/2019 | Acacia Communications, Inc. | ACIA | Sale | | 10.7k | $52.95 | $564.9k | | 05/15/2019 |
| 05/14/2019 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 826 | $51.80 | $42.8k | | 05/13/2019 |
| 05/13/2019 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 5.9k | $52.37 | $308.6k | | 05/13/2019 |
| 03/19/2019 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 2.4k | $56.05 | $135.2k | | 03/19/2019 |
| 03/06/2019 | Acacia Communications, Inc. | ACIA | Sale | | 22.1k | $53.12 | $1.2M | | 03/06/2019 |
| 03/06/2019 | Acacia Communications, Inc. | ACIA | Sale | | 1.1k | $53.82 | $59.2k | | 03/06/2019 |
| 02/14/2019 | Acacia Communications, Inc. | ACIA | Grant | Common Stock | 16.6k | $0.00 | $0 | | 02/14/2019 |
| 02/14/2019 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 770 | $43.38 | $33.4k | | 02/14/2019 |
| 02/04/2019 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 2.8k | $42.34 | $116.5k | | 02/04/2019 |
| 11/14/2018 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 769 | $43.93 | $33.8k | | 11/14/2018 |
| 08/14/2018 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 544 | $39.32 | $21.4k | | 08/14/2018 |
| 05/14/2018 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 3.7k | $35.94 | $133.4k | | 05/14/2018 |
| 03/19/2018 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 1.7k | $42.06 | $73.1k | | 03/19/2018 |
| 03/06/2018 | Acacia Communications, Inc. | ACIA | Sale | | 9.7k | $38.23 | $370.8k | | 03/06/2018 |
| 03/06/2018 | Acacia Communications, Inc. | ACIA | Sale | | 6.3k | $39.31 | $247.7k | | 03/06/2018 |
| 02/14/2018 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 639 | $38.48 | $24.6k | | 02/14/2018 |
| 02/07/2018 | Acacia Communications, Inc. | ACIA | Grant | Common Stock | 23.8k | $0.00 | $0 | | 02/07/2018 |
| 11/14/2017 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 880 | $36.40 | $32k | | 11/14/2017 |
| 08/14/2017 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 858 | $44.46 | $38.1k | | 08/14/2017 |
| 03/17/2017 | Acacia Communications, Inc. | ACIA | Grant | Common Stock | 22.7k | $0.00 | $0 | | 03/17/2017 |
| 11/14/2016 | Acacia Communications, Inc. | ACIA | Payment of Exercise | Common Stock | 870 | $67.41 | $58.6k | | 11/14/2016 |
| 05/18/2016 | Acacia Communications, Inc. | ACIA | Sale | Common Stock | 7.5k | $21.39 | $160.4k | | 05/18/2016 |
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