AWM Investment Company, Inc. Insider Trades & Stock Holdings

10% Owner · 908 Devices Inc. · Latest filing Sep 29, 2026

AWM Investment Company, Inc., 10% Owner at 908 Devices Inc. has 3 Form 4 trades on file since Sep 23, 2026. Open-market activity: 0 purchases ($0) and 3 sales ($491.20K), net -$491.20K. Latest filing: disposed of 18K shares of $MASS on Sep 29, 2026 at $11.52.

Trades on file

3

Open-market bought

$0

Open-market sold

$491.20K

Net open-market

-$491.20K

Latest filing

Sep 29, 2026

All insider trades by AWM Investment Company, Inc.

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Sep 29, 2026	$MASS	Sell (Open-market sale)	18K	$11.52	$207.32K			+4.1%			10% Owner		—
Sep 24, 2026	$MASS	Sell (Open-market sale)	24K	$11.36	$272.63K			+8.6%			10% Owner		—
Sep 23, 2026	$MASS	Sell (Open-market sale)	1K	$11.25	$11.25K			+12.8%			10% Owner		—

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks AWM Investment Company, Inc. traded

• $MASS

Frequently asked questions

Has AWM Investment Company, Inc. been buying or selling stock?

AWM Investment Company, Inc. has 0 open-market purchases and 3 open-market sales on file, net -$491.20K. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was AWM Investment Company, Inc.'s latest insider trade?

disposed of 18K shares of $MASS on Sep 29, 2026 at $11.52.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.