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MASS Exercise Disclosure
Kenneweg John · SEC Form 4 · Filed Sep 17, 2026
Exercise
Calculated transaction value
$0
Kenneweg John SVP, Sales & Product Marketing
MASS
908 Devices Inc
MASS
Transaction date
Sep 16, 2026
Public filing date
Sep 17, 2026
Filing lag
Filed 1 day later
MASS daily price context
Close on/before transaction
$9.92
Sep 16, 2026
First close after public filing
--
Unavailable
30-day return after filing
--
Through Unavailable
Source details
- Reported owner
- Not disclosed
- Source asset code
- Derivative
- Security
- Stock Option (right to buy) on Common Stock
- Quantity / price
- 21,399 shares @ $0
- SEC ownership
- Direct
- Transaction code
- M
- Form
- 4
- Filing identifier
- 0001836876-26-000011
Filing cohort
Transactions in this filing
Showing 9 of 9
Trades
9
Issuers
1
Estimated value
$306.62K
Buys / sales
0 / 3
| Issuer | Transaction | Traded | Value |
|---|---|---|---|
| 908 Devices Inc. MASS | Sale | Sep 17, 2026 | $53.73K |
| 908 Devices Inc. MASS | Exercise | Sep 17, 2026 | $0 |
| 908 Devices Inc. MASS | Exercise | Sep 17, 2026 | $5.05K |
| 908 Devices Inc. MASS | Sale | Sep 16, 2026 | $216.34K |
| 908 Devices Inc. MASS | Exercise | Sep 16, 2026 | $20.54K |
| 908 Devices Inc. MASS Current | Exercise | Sep 16, 2026 | $0 |
| 908 Devices Inc. MASS | Exercise | Sep 15, 2026 | $960 |
| 908 Devices Inc. MASS | Exercise | Sep 15, 2026 | $0 |
| 908 Devices Inc. MASS | Sale | Sep 15, 2026 | $10K |