Summary
Updated Aug 31, 2026
AWM Investment Company, Inc. is 10% Owner of 908 Devices Inc. (MASS). 17 SEC Form 4 filings on record going back to 2024, most recently on 24 August 2026. Most recent open-market trade: sold $441K of MASS on 24 August 2026. Lifetime open-market sales: $4.46M.
Recent Transactions
20Every recent SEC Form 4 transaction AWM Investment Company, Inc. has reported, most recent first.
Trading Pattern
InsiderAlpha's records for AWM Investment Company, Inc. go back to 2024: 17 primary Form 4 filings, an average of 5.7 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies AWM Investment Company, Inc. files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Kevin J. Knopp - $2.55M of MASS open-market activity in the last 12 months
- Christopher D. Brown - $1.49M of MASS open-market activity in the last 12 months
- Joseph H. Griffith IV - $412K of MASS open-market activity in the last 12 months
- John Kenneweg - $201K of MASS open-market activity in the last 12 months
- Kevin J. McCallion - $188K of MASS open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
What is AWM Investment Company, Inc.?
AWM Investment Company, Inc. is an investment firm, tracked as 10% Owner of 908 Devices Inc. (MASS). InsiderAlpha holds 17 primary Form 4 filings for it, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has AWM Investment Company, Inc. submitted recently?
4 primary Form 4 filings in the last 90 days, covering 1 company.
Has AWM Investment Company, Inc. been buying or selling stock?
Recorded transactions: 0 open-market purchases and 35 open-market sales ($4.46M) across all tracked filings.
Where can I see all of AWM Investment Company, Inc.'s SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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