Summary
Updated Aug 31, 2026
Gail Boxer Marcus files SEC Form 4 reports at Natera, Inc. (NTRA). 11 SEC Form 4 filings on record going back to 2024, most recently on 1 July 2026. Most recent open-market trade: sold $25K of NTRA on 10 June 2026. Lifetime open-market sales: $5.37M.
Recent Transactions
20Every recent SEC Form 4 transaction Gail Boxer Marcus has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Gail Boxer Marcus go back to 2024: 11 primary Form 4 filings, an average of 3.7 per year. 2 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Gail Boxer Marcus 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.
- Steven Leonard Chapman - $93.37M of NTRA open-market activity in the last 12 months
- Matthew Rabinowitz - $82.72M of NTRA open-market activity in the last 12 months
- Roelof Botha - $34.89M of NTRA open-market activity in the last 12 months
- Daniel Rabinowitz - $23.83M of NTRA open-market activity in the last 12 months
- Michael Burkes Brophy - $22.14M of NTRA open-market activity in the last 12 months
- Jonathan Sheena - $21.09M of NTRA 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 Gail Boxer Marcus?
Gail Boxer Marcus is a corporate insider of Natera, Inc. (NTRA). 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 Gail Boxer Marcus submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Gail Boxer Marcus been buying or selling stock?
Recorded transactions: 0 open-market purchases and 16 open-market sales ($5.37M) across all tracked filings.
Where can I see all of Gail Boxer Marcus'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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