Insiders who reported open-market trades in the last 12 months at the companies Robert Barrow 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.
Mark Sullivan - $1.45M in DFTX purchases and sales in the last 12 months
Daniel Karlin - $1.07M in DFTX purchases and sales in the last 12 months
Brandi Roberts - $259K in DFTX purchases and sales in the last 12 months
Matthew T. Wiley - $242K in DFTX purchases and sales in the last 12 months
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Robert Barrow is a corporate insider, tracked as Chief Executive Officer, Director of Definium Therapeutics, Inc. (DFTX). InsiderAlpha holds 11 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Robert Barrow submitted recently?
4 primary Form 4 filings in the last 90 days, covering 1 company.
Has Robert Barrow been buying or selling stock?
Recorded transactions: 0 open-market purchases and 7 open-market sales ($4.38M) across all tracked filings.
Robert Barrow is Chief Executive Officer, Director of Definium Therapeutics, Inc. (DFTX). 11 SEC Form 4 filings on record going back to 2024, most recently on 30 September 2026. Most recent open-market trade: sold $1.15M of DFTX on 30 September 2026. Lifetime open-market sales: $4.38M.
Recent transactions
12
The latest 12 SEC Form 4 transactions reported by Robert Barrow.
InsiderAlpha's records for Robert Barrow go back to 2024: 11 primary Form 4 filings, an average of 3.7 per year. 7 recorded transactions carry a Rule 10b5-1 plan flag. This identifies the marked transactions as reported under a trading plan; it does not establish the plan status of unmarked transactions.
