LXEO insider buying and SEC filings, explained
Lexeo Therapeutics, Inc. · CIK 1907108
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq
- Industry (SIC)
- Biological Products, (No Diagnostic Substances)
- Fiscal year end
- Dec 31
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$446K
Planned sales (10b5-1)
$313K
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Aug 18, 2026 | Sale | Louis Edward Tamayo (CFO) sold 4,117 shares at about $4.91 ($20K). Holdings down 4% to 92,907 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 19, 2026 |
| Aug 18, 2026 | Sale | Jose Manuel Otero (President / COO) sold 1,304 shares at about $4.96 ($6K). Holdings down 1% to 136,178 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 19, 2026 |
| Aug 18, 2026 | Sale | Richard Nolan Townsend (CEO and Director) sold 3,345 shares at about $4.95 ($17K). Holdings down 1% to 374,472 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 19, 2026 |
| Jul 1, 2026 | Sale | Narinder Pal Bhalla (Chief Medical Officer) sold 22,306 shares at about $4.42 ($99K). Holdings down 21% to 82,194 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jul 1, 2026 |
| Jul 1, 2026 | Sale | Louis Edward Tamayo (CFO) sold 4,641 shares at about $4.49 ($21K). Holdings down 5% to 97,024 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jul 1, 2026 |
| Jul 1, 2026 | Sale | Jose Manuel Otero (President / COO) sold 4,666 shares at about $4.48 ($21K). Holdings down 3% to 137,482 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jul 1, 2026 |
| Jul 1, 2026 | Sale | Richard Nolan Townsend (CEO and Director) sold 25,947 shares at about $4.48 ($116K). Holdings down 6% to 377,817 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jul 1, 2026 |
| May 18, 2026 | Sale | Jose Manuel Otero (President / COO) sold 1,302 shares at about $5.07 ($7K). Holdings down 1% to 130,088 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 20, 2026 |
| May 18, 2026 | Sale | Richard Nolan Townsend (CEO and Director) sold 3,342 shares at about $5.06 ($17K). Holdings down 1% to 336,764 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 20, 2026 |
| Apr 6, 2026 | Planned (10b5-1) | Richard Nolan Townsend (CEO and Director) sold 55,000 shares at about $5.69 ($313K), marked as a 10b5-1 plan trade. Holdings down 14% to 340,106 shares. | SEC filing Filed Apr 7, 2026 |
| Feb 18, 2026 | Sale | Jose Manuel Otero (President / COO) sold 3,016 shares at about $6.40 ($19K). Holdings down 2% to 125,460 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 20, 2026 |
| Feb 18, 2026 | Sale | Richard Nolan Townsend (CEO and Director) sold 10,173 shares at about $6.38 ($65K). Holdings down 3% to 392,483 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 20, 2026 |
| Aug 18–Nov 18, 2025 | Sale Amended filing | Jose Manuel Otero (President / COO) sold 1,442 shares between Aug 18, 2025 and Nov 18, 2025 at about $9.27 ($13K). Holdings down 2% to 63,476 shares. Not marked as a 10b5-1 plan trade. This amends a filing from Nov 20, 2025. | SEC filing Filed Feb 20, 2026 |
| Nov 18, 2025 | Sale | Tai Sandi See (Chief Development Officer) sold 386 shares at about $9.27 ($4K). Holdings down 1% to 65,476 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 20, 2025 |
| Nov 18, 2025 | Sale | Richard Nolan Townsend (CEO and Director) sold 1,127 shares at about $9.27 ($10K). Holdings down <1% to 240,991 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 20, 2025 |
| Nov 18, 2025 | Sale | Jenny Robertson (Chief Legal Officer) sold 549 shares at about $9.27 ($5K). Holdings down 1% to 68,381 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 20, 2025 |
| Nov 18, 2025 | Sale | Eric Adler (Chief Medical Officer) sold 615 shares at about $9.27 ($6K). Holdings down 1% to 72,646 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 20, 2025 |
22 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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