McCallion Kevin J. bought MASS
April 9, 2026 · Form 4 insider transaction
McCallion Kevin J. bought 5,420 shares of 908 Devices Inc. at $1.05 per share, a transaction worth $5.7K. 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
5,420
Price
$1.05
Total value
$5.7K
InsiderMcCallion Kevin J.
RoleOfficer
Company908 Devices Inc. (MASS)
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateApril 9, 2026
Filing dateApril 10, 2026
Shares owned after50,345
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.