908 Devices (MASS) insider trading in the last 6 months

Form 4 filings, newest first

Quality Score today 7

3 insiders sold $4.3M. No buys.

SellAWM Investment Company, INC.$207K10% ownerat $11.52 on Sep 29, filed Oct 1

SellAWM Investment Company, INC.10% owner$207Kat $11.52 on Sep 29, filed Oct 1

SellAWM Investment Company, INC.$273K10% ownerat $11.36 on Sep 24, filed Sep 25

SellAWM Investment Company, INC.10% owner$273Kat $11.36 on Sep 24, filed Sep 25

SellAWM Investment Company, INC.$11K10% ownerat $11.25 on Sep 23, filed Sep 25

SellAWM Investment Company, INC.10% owner$11Kat $11.25 on Sep 23, filed Sep 25

From SEC Form 4s, the newest filed Oct 1, 2026 · Insiders have 2 business days to file a trade

16 more filings on MASS in the last 6 months, for Pro members. See them free →

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Who files at 908 Devices

John KennewegSVP, Sales & Product Marketing · 1 sale

Insider trades by person

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Questions about MASS's insider trades

As of Nov 2, 2026: 908 Devices (MASS) has 19 insider filings on record in the last 6 months, the newest filed Oct 1, 2026. Its Quality Score is 7 (Average). Scores as of 6:18 PM ET, 15 minutes behind.

Are MASS insiders buying or selling?

3 insiders sold $4.3M across 19 filings in the last 6 months. No open-⁠market buys on record. The newest filing: AWM Investment Company, INC., 10% owner, sold $207K on Sep 29, 2026.

Who are MASS's biggest insider sellers?

By the dollars of their sales in the last 6 months: AWM Investment Company, INC. (10% owner), 18 sales; John Kenneweg (SVP, Sales & Product Marketing), 1 sale. 3 insiders sold in all.

When did an MASS insider last buy?

No MASS insider bought shares on the open market in the last 6 months, as filed on Form 4. The newest filing is a sale by AWM Investment Company, INC. on Sep 29, 2026.

908 Devices's page has its Quality Score, its chart, and its earnings. More in Healthcare and Laboratory Analytical Instruments.