Summary
Updated Aug 30, 2026
Tai Sandi See is Chief Development Officer of Lexeo Therapeutics, Inc. (LXEO). 3 SEC Form 4 filings on record, most recently on 20 November 2025. Most recent open-market trade: sold $4K of LXEO on 20 November 2025. Lifetime open-market sales: $40K.
Recent Transactions
5Every recent SEC Form 4 transaction Tai Sandi See has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Tai Sandi See go back to 2025: 3 primary Form 4 filings, an average of 1.5 per year. 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 Tai Sandi See 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.
- Richard Nolan Townsend - $656K of LXEO open-market activity in the last 12 months
- Narinder Pal Bhalla - $99K of LXEO open-market activity in the last 12 months
- Jose Manuel Otero - $79K of LXEO open-market activity in the last 12 months
- Louis Edward Tamayo - $41K of LXEO open-market activity in the last 12 months
- Jenny Robertson - $37K of LXEO open-market activity in the last 12 months
- Eric Adler - $36K of LXEO 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 Tai Sandi See?
Tai Sandi See is a corporate insider, tracked as Chief Development Officer of Lexeo Therapeutics, Inc. (LXEO). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Tai Sandi See last file a Form 4?
The most recent primary Form 4 on record is dated 20 November 2025, one of 3 filings going back to 2025.
Has Tai Sandi See been buying or selling stock?
Recorded transactions: 0 open-market purchases and 4 open-market sales ($40K) across all tracked filings.
Where can I see all of Tai Sandi See'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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