Knopp Kevin J.
SEC insider (Form 3/4/5 filer). CIK 0001836523. President and CEO at 908 Devices Inc. (MASS). 30 reported Form 4/5 transactions since Sep 2024; latest on Aug 17, 2026. Located in BURLINGTON, MA.
Companies Knopp Kevin J. has filed insider reports for
- 908 Devices Inc. (MASS): Director, Officer, President and CEO
Knopp Kevin J.
CIK: 0001836523
Transaction Breakdown
Open Market Buys (P)2 (6.7%)
High conviction signal
Open Market Sales (S)15 (50.0%)
Position reduction
Option Exercises (M)9 (30.0%)
Derivative conversions
Awards (A)4 (13.3%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
MASS
908 Devices Inc.
DirectorOfficer
Discretionary Trading P&L
Holdings
Transaction History (30 total)
- Aug 17, 2026MASS
908 Devices Inc.
SaleDirect20K shares at avg. $10.35$207K - Aug 13, 2026MASS
908 Devices Inc.
SaleDirect7.6K shares at avg. $10.06$77K - Aug 12, 2026MASS
908 Devices Inc.
SaleDirect2.7K shares at avg. $10.07$28K - Aug 11, 2026MASS
908 Devices Inc.
SaleDirect30.2K shares at avg. $10.16$307K - Aug 11, 2026MASS
908 Devices Inc.
SaleDirect115.7K shares at avg. $9.83$1.1M - Aug 10, 2026MASS
908 Devices Inc.
SaleDirect348 shares at avg. $9.06$3K - Jul 2, 2026MASS
908 Devices Inc.
SaleDirect222 shares at avg. $9.07$2K - Jun 26, 2026MASS
908 Devices Inc.
SaleDirect2.8K shares at avg. $9.09$25K - Jun 25, 2026MASS
908 Devices Inc.
SaleDirect16.4K shares at avg. $9.10$149K - Jun 24, 2026MASS
908 Devices Inc.
SaleDirect40.5K shares at avg. $9.14$370K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Aug 17, 2026 | MASS 908 Devices Inc. | Sale | 20,000 | $10.35 | $207,000 | Direct |
| Aug 13, 2026 | MASS 908 Devices Inc. | Sale | 7,622 | $10.06 | $76,677 | Direct |
| Aug 12, 2026 | MASS 908 Devices Inc. | Sale | 2,747 | $10.07 | $27,662 | Direct |
| Aug 11, 2026 | MASS 908 Devices Inc. | Sale | 30,170 | $10.16 | $306,527 | Direct |
| Aug 11, 2026 | MASS 908 Devices Inc. | Sale | 115,748 | $9.83 | $1,137,803 | Direct |
| Aug 10, 2026 | MASS 908 Devices Inc. | Sale | 348 | $9.06 | $3,153 | Direct |
| Jul 2, 2026 | MASS 908 Devices Inc. | Sale | 222 | $9.07 | $2,014 | Direct |
| Jun 26, 2026 | MASS 908 Devices Inc. | Sale | 2,798 | $9.09 | $25,434 | Direct |
| Jun 25, 2026 | MASS 908 Devices Inc. | Sale | 16,388 | $9.10 | $149,131 | Direct |
| Jun 24, 2026 | MASS 908 Devices Inc. | Sale | 40,535 | $9.14 | $370,490 | Direct |
1-10 of 30 transactions