🕵️ Lexeo Therapeutics, Inc. ($LXEO)
SEC insider & ownership activity, last 12 months · CIK 1907108 · every row links its SEC filing
Over the last 12 months insiders sold $974K with no open-market buying against it. Townsend Richard Nolan sold $644K (Aug–Jul). 1 planned sale is pending, the largest $8K (Adler Eric). No red-flag 8-Ks in the window.
🚨 3 signals active —
planned-vs-executed verdicts, pre-event flags, and cluster context live in the
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 7 sellers, $974K (30 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Townsend Richard Nolan | 0 | – | 8 | $644K | Jul 1, 2026 |
| Bhalla Narinder Pal | 0 | – | 1 | $99K | Jul 1, 2026 |
| Otero Jose Manuel | 0 | – | 8 | $92K | Jul 1, 2026 |
| See Tai Sandi | 0 | – | 4 | $40K | Nov 18, 2025 |
| Robertson Jenny | 0 | – | 4 | $39K | Nov 18, 2025 |
| Adler Eric | 0 | – | 4 | $39K | Nov 18, 2025 |
| Tamayo Louis Edward | 0 | – | 1 | $21K | Jul 1, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Janus Henderson Group PLC | 10.0% | 13G | Dec 8, 2025 | filing ↗ | |
| Balyasny Asset Management L.P. | 9.7% | 13G | May 15, 2026 | filing ↗ | |
| BAM GP LLC | 9.7% | 13G | May 15, 2026 | filing ↗ | |
| Balyasny Asset Management Holdings LP | 9.7% | 13G | May 15, 2026 | filing ↗ | |
| Dames GP LLC | 9.7% | 13G | May 15, 2026 | filing ↗ | |
| Dmitry Balyasny | 9.7% | 13G | May 15, 2026 | filing ↗ | |
| Paradigm Biocapital Advisors LP | 8.3% | 13G | May 15, 2026 | filing ↗ | |
| Paradigm Biocapital Advisors GP LLC | 8.3% | 13G | May 15, 2026 | filing ↗ | |
| Senai Asefaw, M.D. | 8.3% | 13G | May 15, 2026 | filing ↗ | |
| Affinity Healthcare Fund, LP | 7.8% | 13G | Jun 4, 2025 | filing ↗ | |
| Suvretta Capital Management, LLC | 7.7% | 13G | Apr 13, 2026 | filing ↗ | |
| Aaron Cowen | 7.7% | 13G | Apr 13, 2026 | filing ↗ | |
| Janus Henderson Biotech Innovation Master Fund Ltd | 7.6% | 13G | Nov 14, 2025 | filing ↗ | |
| Vestal Point Capital, LP | 7.5% | 13G | Nov 14, 2025 | filing ↗ | |
| Ryan Wilder | 7.5% | 13G | Nov 14, 2025 | filing ↗ | |
| Paradigm Biocapital International Fund Ltd. | 7.4% | 13G | May 15, 2026 | filing ↗ | |
| Kenneth Griffin | 7.4% | 13G | Feb 17, 2026 | filing ↗ | |
| Citadel Advisors LLC | 7.2% | 13G | Feb 17, 2026 | filing ↗ | |
| Citadel Advisors Holdings LP | 7.2% | 13G | Feb 17, 2026 | filing ↗ | |
| Citadel GP LLC | 7.2% | 13G | Feb 17, 2026 | filing ↗ | |
| Affinity Asset Advisors, LLC | 7.1% | 13G | Jan 29, 2026 | filing ↗ | |
| Michael Cho | 7.1% | 13G | Jan 29, 2026 | filing ↗ | |
| RA Capital Management, L.P. | 6.9% | 13G | Oct 27, 2025 | filing ↗ | |
| Peter Kolchinsky | 6.9% | 13G | Oct 27, 2025 | filing ↗ | |
| Rajeev Shah | 6.9% | 13G | Oct 27, 2025 | filing ↗ | |
| RA Capital Healthcare Fund, L.P. | 6.9% | 13G | Oct 27, 2025 | filing ↗ | |
| Blackrock, Inc. | 6.7% | 13G | Jan 21, 2026 | filing ↗ | |
| Mizuho Financial Group, Inc. | 6.6% | 13G | May 13, 2025 | filing ↗ | |
| Averill Master Fund, Ltd. | 6.5% | 13G | Apr 13, 2026 | filing ↗ | |
| Frazier Life Sciences Public Fund, L.P. | 5.1% | 13G | Feb 13, 2026 | filing ↗ | |
| Fhmlsp, L.P. | 5.1% | 13G | Feb 13, 2026 | filing ↗ | |
| Fhmlsp, L.L.C. | 5.1% | 13G | Feb 13, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Otero Jose Manuel | $21K | Jul 1, 2026 | filing ↗ |
| Tamayo Louis Edward | $21K | Jul 1, 2026 | filing ↗ |
| Bhalla Narinder Pal | $99K | Jul 1, 2026 | filing ↗ |
| Townsend Richard Nolan | $116K | Jul 1, 2026 | filing ↗ |
| Townsend Richard Nolan | $17K | May 18, 2026 | filing ↗ |
| Otero Jose Manuel | $7K | May 18, 2026 | filing ↗ |
| Adler Eric | $8K | May 18, 2026 | filing ↗ |
| Richard Nolan Townsend | $315K | Apr 6, 2026 | filing ↗ |
| Townsend Richard Nolan | $73K | Feb 18, 2026 | filing ↗ |
| Otero Jose Manuel | $19K | Feb 18, 2026 | filing ↗ |
| See Tai Sandi | $25K | Feb 18, 2026 | filing ↗ |
| Robertson Jenny | $24K | Feb 18, 2026 | filing ↗ |
| Adler Eric | $31K | Feb 18, 2026 | filing ↗ |
| Robertson Jenny | $5K | Nov 18, 2025 | filing ↗ |
| See Tai Sandi | $4K | Nov 18, 2025 | filing ↗ |
| Otero Jose Manuel | $7K | Nov 18, 2025 | filing ↗ |
| Adler Eric | $6K | Nov 18, 2025 | filing ↗ |
| Townsend Richard Nolan | $10K | Nov 18, 2025 | filing ↗ |
| Adler Eric | $30K | Oct 17, 2025 | filing ↗ |
| Otero Jose Manuel | $19K | Oct 17, 2025 | filing ↗ |
| Robertson Jenny | $32K | Oct 17, 2025 | filing ↗ |
| Townsend Richard Nolan | $117K | Oct 17, 2025 | filing ↗ |
| See Tai Sandi | $35K | Oct 17, 2025 | filing ↗ |
| Otero Jose Manuel | $13K | Aug 18, 2025 | filing ↗ |
| Adler Eric | $3K | Aug 18, 2025 | filing ↗ |
| Townsend Richard Nolan | $5K | Aug 18, 2025 | filing ↗ |
| See Tai Sandi | $2K | Aug 18, 2025 | filing ↗ |
| Robertson Jenny | $3K | Aug 18, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Shareholder vote (5.07) | Jun 25, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 15, 2026 | filing ↗ |
| Other events (8.01) | Jun 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 15, 2026 | filing ↗ |
| Earnings (2.02) | May 11, 2026 | filing ↗ |
| Other events (8.01) | May 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 11, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 28, 2026 | filing ↗ |
| Earnings (2.02) | Mar 30, 2026 | filing ↗ |
| Other events (8.01) | Mar 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 30, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 30, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 27, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 12, 2026 | filing ↗ |
| Other events (8.01) | Jan 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 12, 2026 | filing ↗ |
| Earnings (2.02) | Nov 5, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 5, 2025 | filing ↗ |
| Material agreement (1.01) | Oct 16, 2025 | filing ↗ |
| Earnings (2.02) | Oct 16, 2025 | filing ↗ |
| Unregistered equity sale (3.02) | Oct 16, 2025 | filing ↗ |
| Other events (8.01) | Oct 16, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 16, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 7, 2025 | filing ↗ |
| Other events (8.01) | Oct 7, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 7, 2025 | filing ↗ |
| Earnings (2.02) | Aug 14, 2025 | filing ↗ |
| Officer/director changes (5.02) | Aug 14, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 14, 2025 | filing ↗ |