Joseph H. Griffith IV
Chief Financial Officer · 908 Devices Inc.
- 2025
- Oct 8, 2026
- 6
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Joseph H. Griffith IV 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.
- AWM Investment Company, Inc. - $4.17M in MASS purchases and sales in the last 12 months
- Kevin J. Knopp - $2.55M in MASS purchases and sales in the last 12 months
- Christopher D. Brown - $2.16M in MASS purchases and sales in the last 12 months
- John Kenneweg - $481K in MASS purchases and sales in the last 12 months
- Kevin J. McCallion - $188K in MASS purchases and sales in the last 12 months
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Frequently asked questions
Who is Joseph H. Griffith IV?
Joseph H. Griffith IV is a corporate insider, tracked as Chief Financial Officer of 908 Devices Inc. (MASS). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Joseph H. Griffith IV submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Joseph H. Griffith IV been buying or selling stock?
Recorded transactions: 0 open-market purchases and 7 open-market sales ($477K) across all tracked filings.
