Summary
Updated Aug 31, 2026
Peter M. Neupert is Director of Adaptive Biotechnologies Corp (ADPT). 8 SEC Form 4 filings on record going back to 2025, most recently on 20 August 2026. Most recent open-market trade: sold $1.75M of ADPT on 20 August 2026. Lifetime open-market purchases: $407K. Lifetime open-market sales: $3.14M.
Recent Transactions
10Every recent SEC Form 4 transaction Peter M. Neupert has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Peter M. Neupert go back to 2025: 8 primary Form 4 filings, an average of 4.0 per year. The typical open-market purchase is $204K (2 buys totaling $407K). The largest single buy on record is $204K of FTRE in 2025. Sales side: 3 recorded sales totaling $3.14M, so the filing history runs sell-heavy by dollar value. 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 Peter M. Neupert 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.
- Chad M. Robins - $37.85M of ADPT open-market activity in the last 12 months
- Harlan S. Robins - $29.48M of ADPT open-market activity in the last 12 months
- Sharon Benzeno - $14.48M of ADPT open-market activity in the last 12 months
- Julie Rubinstein - $13.37M of ADPT open-market activity in the last 12 months
- Francis Lo - $8.00M of ADPT open-market activity in the last 12 months
- Anshul Thakral - $3.94M of FTRE 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 M. Neupert?
Peter M. Neupert is a corporate insider, tracked as Director of Adaptive Biotechnologies Corp (ADPT). InsiderAlpha holds 8 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 M. Neupert submitted recently?
2 primary Form 4 filings in the last 90 days, covering 2 companies.
Has Peter M. Neupert been buying or selling stock?
Recorded transactions: 2 open-market purchases ($407K) and 3 open-market sales ($3.14M) across all tracked filings.
Where can I see all of Peter M. Neupert'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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