Arkolith/Insider Trading/MASS/Form 4

Knopp Kevin J.

President and CEO, Director908 Devices Inc. (MASS) · full profile →Form 4 · filed Feb 3, 2026
Net Selling
Open-Market Buys
$0
Open-Market Sells
$215K
Net Open-Market Flow
-$215K
Transactions
11
5 non-derivative · 6 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Feb 2, 2026Sell(S)35K$6.18$215K796K
Feb 1, 2026Option exercise(M)66K——831K
Feb 1, 2026Option exercise(M)17K——764K
Feb 1, 2026Option exercise(M)13K——747K
Feb 1, 2026Option exercise(M)11K——734K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Feb 2, 2026Grant(A)90K—$090K
Feb 2, 2026Grant(A)206K—$0206K
Feb 1, 2026Option exercise(M)17K—$034K
Feb 1, 2026Option exercise(M)11K—$00
Feb 1, 2026Option exercise(M)13K—$013K
Feb 1, 2026Option exercise(M)66K—$0133K

Transaction Codes

S
Open-market sale
M
Option exercise / conversion
A
Grant / award

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001836523-26-000002) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML