Summary
Updated Aug 31, 2026
Matthew Ros files SEC Form 4 reports at Cogent Biosciences, Inc. (COGT). 1 SEC Form 4 filing on record, dated 11 June 2026.
Trading Pattern
InsiderAlpha's records for Matthew Ros go back to 2026: 1 primary Form 4 filing, an average of 1.0 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 Matthew Ros 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.
- Fairmount Funds Management LLC - $370.02M of COGT open-market activity in the last 12 months
- John Edward Robinson - $3.49M of COGT open-market activity in the last 12 months
- Jessica Sachs - $3.20M of COGT open-market activity in the last 12 months
- John L. Green - $2.98M of COGT open-market activity in the last 12 months
- Evan Kearns - $2.52M of COGT 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
Who is Matthew Ros?
Matthew Ros is a corporate insider of Cogent Biosciences, Inc. (COGT). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Matthew Ros submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Where can I see all of Matthew Ros'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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