Summary
Updated Aug 30, 2026
Robert Doebele is Chief Medical Officer of Boundless Bio, Inc. (BOLD). 1 SEC Form 4 filing on record, dated 26 January 2026.
Trading Pattern
InsiderAlpha's records for Robert Doebele 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 Robert Doebele 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 Tang - $1.57M of BOLD open-market activity in the last 12 months
- Keith Crandell - $40K of BOLD open-market activity in the last 12 months
- ARCH Venture Fund IX, L.P. - $40K of BOLD 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 Robert Doebele?
Robert Doebele is a corporate insider, tracked as Chief Medical Officer of Boundless Bio, Inc. (BOLD). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Robert Doebele last file a Form 4?
The only primary Form 4 on record is dated 26 January 2026.
Where can I see all of Robert Doebele'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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