Summary
Updated Aug 31, 2026
Peter Feinberg is Director of Immuneering Corp (IMRX). 5 SEC Form 4 filings on record going back to 2025, most recently on 11 June 2026. Most recent open-market trade: bought $87K of IMRX on 15 January 2026. Lifetime open-market purchases: $226K. Historical track record: 2/5 stars across 4 tracked purchases.
Recent Transactions
4Every recent SEC Form 4 transaction Peter Feinberg has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Peter Feinberg 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.
- Thomas J. Schall - $101K of IMRX open-market activity in the last 12 months
- Brett Matthew Hall - $36K of IMRX open-market activity in the last 12 months
- Harold Eugene Brakewood - $25K of IMRX open-market activity in the last 12 months
- Leah R. Neufeld - $16K of IMRX open-market activity in the last 12 months
- Benjamin J. Zeskind - $11K of IMRX open-market activity in the last 12 months
- Michael Bookman - $7K of IMRX 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 Peter Feinberg?
Peter Feinberg is a corporate insider, tracked as Director of Immuneering Corp (IMRX). InsiderAlpha holds 5 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 Peter Feinberg submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Peter Feinberg been buying or selling stock?
Recorded transactions: 4 open-market purchases ($226K) and 0 open-market sales across all tracked filings.
How accurate is Peter Feinberg's historical track record?
Across 4 tracked purchases, Peter Feinberg averaged +3.1% avg 30-day return with a 50% 30-day win rate. InsiderAlpha rates the track record at 2/5 stars.
Where can I see all of Peter Feinberg'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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