| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MASS | Common Stock, par value $0.001 | Sale | -$107K | -3.44K | -0.42% | $31.22 | 808K | Aug 16, 2021 | Direct | F1, F2 |
| transaction | MASS | Common Stock, par value $0.001 | Sale | -$186K | -6.04K | -0.75% | $30.76 | 802K | Aug 16, 2021 | Direct | F1, F3 |
| transaction | MASS | Common Stock, par value $0.001 | Sale | -$288K | -9.52K | -1.19% | $30.22 | 793K | Aug 16, 2021 | Direct | F1, F4 |
| transaction | MASS | Common Stock, par value $0.001 | Sale | -$120K | -4K | -0.5% | $30.01 | 789K | Aug 17, 2021 | Direct | F1 |
| transaction | MASS | Common Stock, par value $0.001 | Sale | -$365K | -12K | -1.52% | $30.44 | 777K | Aug 18, 2021 | Direct | F1 |
| holding | MASS | Common Stock, par value $0.001 | 541K | Aug 16, 2021 | See Footnote | F5 |
| Id | Content |
|---|---|
| F1 | Represents sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. |
| F2 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.09 to $32.08, inclusive. The reporting person undertakes to provide to 908 Devices Inc., any security holder of 908 Devices Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. |
| F3 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.38 to $31.08, inclusive. The reporting person undertakes to provide to 908 Devices Inc., any security holder of 908 Devices Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. |
| F4 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.00 to $30.36, inclusive. The reporting person undertakes to provide to 908 Devices Inc., any security holder of 908 Devices Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. |
| F5 | The shares are owned directly by The Kevin J. Knopp Irrevocable Trust of 2018. The reporting person's brother-in-law is the trustee of The Kevin J. Knopp Irrevocable Trust of 2018 and has sole voting and dispositive control with respect to all securities held by such trust. The reporting person may be deemed to be the beneficial owner of the securities held by The Kevin J. Knopp Irrevocable Trust of 2018. |