McCallion Kevin J. bought MASS
April 8, 2026 · Form 4 insider transaction
McCallion Kevin J. bought 18,580 shares of 908 Devices Inc. at $1.05 per share, a transaction worth $19.5K. The trade was recorded as option exercise under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Acquired (buy-side)
Shares
18,580
Price
$1.05
Total value
$19.5K
InsiderMcCallion Kevin J.
RoleOfficer
Company908 Devices Inc. (MASS)
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateApril 8, 2026
Filing dateApril 10, 2026
Shares owned after63,505
OwnershipDirect
10b5-1 planYes
AmendedNo
Footnotes
This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 9, 2025.