BROWN CHRISTOPHER D.

PrivateCIK: 1836988
Location

BURLINGTON, MA

BROWN CHRISTOPHER D. (Chief Technology Officer) sold 3.2% of their position (30K shares) of 908 DEVICES INC. on the open market

Open‑market sale worth $270.0K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderBROWN CHRISTOPHER D.CIK 1836988
Issuer908 DEVICES INC.CIK 1555279
Officer· Chief Technology Officer
Since Dec 2020
-30K
Net shares
Net seller
$270.0K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
30K disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

30K

Price / share

$9.00

Trade value

$270K

% of position

3.2%
5/28/2026
925.56K895.56K
Total

Net shares

30K

Net value

-$270K

Derivative Transactions0
No derivative transactions reported
BROWN CHRISTOPHER D. — Insider Transaction (Form 4) Filed May 29, 2026 | Finecho