Kenneweg John bought MASS
September 16, 2026 · Form 4 insider transaction
Kenneweg John bought 21,399 shares of 908 Devices Inc. at $0.96 per share, a transaction worth $20.5K. The trade was recorded as option exercise under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 1 day after the transaction.
Direction
Acquired (buy-side)
Shares
21,399
Price
$0.96
Total value
$20.5K
InsiderKenneweg John
RoleOfficer
Company908 Devices Inc. (MASS)
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateSeptember 16, 2026
Filing dateSeptember 17, 2026
Shares owned after79,183
OwnershipDirect
10b5-1 planYes
AmendedNo
Footnotes
This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 12, 2026.