Arkolith/Insider Trading/MASS/Form 4

McCallion Kevin J.

SVP, Products and Production908 Devices Inc. (MASS) · full profile →Form 4 · filed Apr 10, 2026
Net Selling
Open-Market Buys
$0
Open-Market Sells
$169K
Net Open-Market Flow
-$169K
Transactions
6
4 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Apr 9, 2026Option exercise(M)5K$1.05$6K50K
Apr 9, 2026Sell(S)5K$7.03$38K45K
Apr 8, 2026Option exercise(M)19K$1.05$20K64K
Apr 8, 2026Sell(S)19K$7.05$131K45K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Apr 9, 2026Option exercise(M)5K—$03K
Apr 8, 2026Option exercise(M)19K—$08K

Transaction Codes

M
Option exercise / conversion
S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0002115341-26-000010) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML