Summary
Updated Aug 30, 2026
Lorena Raquel Lerner is Chief Scientific Officer of Keros Therapeutics, Inc. (KROS). 3 SEC Form 4 filings on record, most recently on 20 August 2026. Most recent open-market trade: sold $37K of KROS on 20 August 2026. Lifetime open-market sales: $100K.
Recent Transactions
2Every recent SEC Form 4 transaction Lorena Raquel Lerner 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 Lorena Raquel Lerner 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.
- ADAR1 Capital Management, LLC - $95.66M of KROS open-market activity in the last 12 months
- Pontifax Management 4 G.P. (2015) Ltd. - $84.98M of KROS open-market activity in the last 12 months
- Esther Cho - $124K of KROS open-market activity in the last 12 months
- Jasbir Seehra - $113K of KROS open-market activity in the last 12 months
- Keith Regnante - $77K of KROS open-market activity in the last 12 months
- Jean Jacques Bienaime - $76K of KROS 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 Lorena Raquel Lerner?
Lorena Raquel Lerner is a corporate insider, tracked as Chief Scientific Officer of Keros Therapeutics, Inc. (KROS). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Lorena Raquel Lerner submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Lorena Raquel Lerner been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($100K) across all tracked filings.
Where can I see all of Lorena Raquel Lerner'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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