InsiderTrades

Form 4 for MASS 908 Devices Inc.

Accepted 2024-12-19 00:00:00 ET · period of report 2024-12-19 · accession 0001562180-24-008522 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2024-12-19 2024-12-19 MASS Brown Christopher D. Chief Product Off M - OptEx $1.58 +55.1K 946.5K +6% +$87.1K
D 2024-12-19 2024-12-19 MASS Brown Christopher D. Chief Product Off M - OptEx $0.00 -55.1K 0 -100% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2024-12-19 M A 55,131 $1.58 946,453 D — —
2 Derivative Stock Option (Right to Buy) 2024-12-19 M D 55,131 $0.00 0 D $1.58 · — to 2029-01-20 55,131 Common Stock (F1) The shares underlying the option are fully vested and immediately exercisable.