| 4 | Statement of changes in beneficial owner... | Helius Medical Technologies, Inc. | Donnelley Financial Solutions File16 /fa | 12/16/2019 | |
| 4 | Statement of changes in beneficial owner... | Avedro Inc | Donnelley Financial Solutions File16 /fa | 11/25/2019 | |
| 4 | Statement of changes in beneficial owner... | Avedro Inc | Donnelley Financial Solutions File16 /fa | 09/05/2019 | |
| 4 | Statement of changes in beneficial owner... | Avedro Inc | Donnelley Financial Solutions File16 /fa | 06/18/2019 | |
| 4 | Statement of changes in beneficial owner... | Avedro Inc | Donnelley Financial Solutions File16 /fa | 05/15/2019 | |
| 4 | Statement of changes in beneficial owner... | Helius Medical Technologies, Inc. | Donnelley Financial Solutions File16 /fa | 04/01/2019 | |
| 4 | Statement of changes in beneficial owner... | Avedro Inc | Donnelley Financial Solutions File16 /fa | 02/19/2019 | |
| 3 | Initial statement of beneficial ownershi... | Avedro Inc | Donnelley Financial Solutions File16 /fa | 02/13/2019 | |
| 4 | Statement of changes in beneficial owner... | Helius Medical Technologies, Inc. | Donnelley Financial Solutions File16 /fa | 05/17/2018 | |
| 4 | Statement of changes in beneficial owner... | Helius Medical Technologies, Inc. | Donnelley Financial Solutions File16 /fa | 04/17/2018 | |
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