Arkolith/Insider Trading/MASS/Form 4

Brown Christopher D.

Director908 Devices Inc. (MASS) · full profile →Form 4 · filed Feb 3, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
6
3 non-derivative · 3 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Feb 1, 2026Option exercise(M)11K——986K
Feb 1, 2026Option exercise(M)7K——975K
Feb 1, 2026Option exercise(M)5K——967K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Feb 1, 2026Option exercise(M)11K—$022K
Feb 1, 2026Option exercise(M)7K—$07K
Feb 1, 2026Option exercise(M)5K—$00

Transaction Codes

M
Option exercise / conversion

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001836988-26-000002) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML