Summary
Updated Aug 31, 2026
Quoc Le-Nguyen files SEC Form 4 reports at 89bio, Inc. (ETNB). 5 SEC Form 4 filings on record going back to 2024, most recently on 30 October 2025. Most recent open-market trade: sold $115K of ETNB on 15 July 2025. Lifetime open-market sales: $342K.
Recent Transactions
8Every recent SEC Form 4 transaction Quoc Le-Nguyen has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Quoc Le-Nguyen go back to 2024: 5 primary Form 4 filings, an average of 1.7 per year. 1 recorded transaction carries a Rule 10b5-1 flag, meaning it was pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who have reported open-market trades at the same companies as Quoc Le-Nguyen. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- RA CAPITAL MANAGEMENT, L.P. - $27.62M of ETNB open-market activity on record
- Rohan Palekar - $123K of ETNB open-market activity on record
- Charles McWherter - $80K of ETNB open-market activity on record
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Quoc Le-Nguyen?
Quoc Le-Nguyen is a corporate insider of 89bio, Inc. (ETNB). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Quoc Le-Nguyen last file a Form 4?
The most recent primary Form 4 on record is dated 30 October 2025, one of 5 filings going back to 2024.
Has Quoc Le-Nguyen been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($342K) across all tracked filings.
Where can I see all of Quoc Le-Nguyen'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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