Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Mark Spoto 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 Sheldon Serafini - $1.36M in HAWK purchases and sales in the last 12 months
- Arthur L. Money - $821K in HAWK purchases and sales in the last 12 months
- Francis Alphonse Finelli - $770K in HAWK purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Mark Spoto?
Mark Spoto is a corporate insider of 908 Devices Inc. (MASS). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Mark Spoto last file a Form 4?
The most recent primary Form 4 on record is dated 12 June 2026, one of 3 filings going back to 2026.
