Lexeo Therapeutics, Inc.
LXEO- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001907108
In the last 90 days, Lexeo Therapeutics, Inc. insiders filed 0 open-market purchases and 7 sales; 141 institutions reported holding it in 13F filings for Q2 2026, worth $416.9M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Lexeo Therapeutics, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 7 filings
- 4 insiders, $299.8K in total
- Insiders trading
- 4
- Net value
- −$299.8K
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Lexeo Therapeutics, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Tamayo Louis Edward | Chief Financial Officer | 92,907 | Aug 19, 2026 | 3 |
| Townsend Richard Nolan | Chief Executive Officer | 374,472 | Aug 19, 2026 | 9 |
| Otero Jose Manuel | Chief Operating Officer | 136,178 | Aug 19, 2026 | 8 |
| Bhalla Narinder Pal | Chief Medical Officer | 82,194 | Jul 1, 2026 | 2 |
| Cholmondeley Paula H | Director | 30,627 | Jun 29, 2026 | 1 |
| Diaz Reinaldo M | Director | – | Jun 29, 2026 | 1 |
| Altschuler Steven | Director | – | Jun 29, 2026 | 1 |
| Agger Mette Kirstine | Director | – | Jun 29, 2026 | 1 |
| Van Hauwermeiren Timothy | Director | – | Jun 29, 2026 | 1 |
| Tanguler Tolga | Director | – | Jun 29, 2026 | 1 |
| Cooperstone Brenda | Director | – | Jun 29, 2026 | 1 |
| Sepp-Lorenzino Laura | Director | – | Apr 30, 2026 | 1 |
| Adler Eric | Chief Medical Officer | 72,646 | Nov 20, 2025 | 2 |
| Robertson Jenny | Chief Legal Officer | 68,381 | Nov 20, 2025 | 2 |
| See Tai Sandi | Chief Development Officer | 65,476 | Nov 20, 2025 | 2 |
| Rasbach Kyle | Chief Financial Officer | 40,875 | Jan 22, 2025 | 0 |
| Stampacchia Otello | 10% Owner | 2,157,623 | Nov 9, 2023 | 0 |
| Paster Anne-Mari | 10% Owner | 2,157,623 | Nov 9, 2023 | 0 |
| Nessi Claudio | 10% Owner | 2,157,623 | Nov 9, 2023 | 0 |
| Omega Fund VI, L.P. | 10% Owner | 2,157,623 | Nov 9, 2023 | 0 |
| Omega Fund VI GP Manager, Ltd. | 10% Owner | 2,157,623 | Nov 9, 2023 | 0 |
| Omega Fund VI GP, L.P. | 10% Owner | 2,157,623 | Nov 9, 2023 | 0 |
| Enright Patrick G | 10% Owner | 2,567,100Indirect | Nov 9, 2023 | 0 |
| Tammenoms Bakker Juliet | 10% Owner | 2,567,100Indirect | Nov 9, 2023 | 0 |
| Longitude Venture Partners IV, L.P. | 10% Owner | 2,567,100Indirect | Nov 9, 2023 | 0 |
| Longitude Capital Partners IV, LLC | 10% Owner | 2,567,100Indirect | Nov 9, 2023 | 0 |
| Lundbeckfond Invest A/S | 10% Owner | 1,835,959 | Nov 9, 2023 | 0 |
| McCormac Paul | Chief Technical Officer | 17,349 | Nov 9, 2023 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 19, 2026 (view filing)5:00 PM ET | Aug 18 | 1 day | Tamayo Louis EdwardChief Financial Officer | SSale | −4.12K | $4.91 | −$20.2K | −4.2%92.9K after | |
| Aug 19, 2026 (view filing)5:00 PM ET | Aug 18 | 1 day | Townsend Richard NolanChief Executive Officer | SSale | −3.35K | $4.95 | −$16.6K | −0.9%374.5K after | |
| Aug 19, 2026 (view filing)5:00 PM ET | Aug 18 | 1 day | Otero Jose ManuelChief Operating Officer | SSale | −1.30K | $4.96 | −$6.46K | −0.9%136.2K after | |
| Jul 1, 2026 (view filing)6:49 PM ET | Jul 1 | Same day | Tamayo Louis EdwardChief Financial Officer | SSale | −4.64K | $4.49 | −$20.8K | −4.6%97.0K after | |
| Jul 1, 2026 (view filing)6:49 PM ET | Jul 1 | Same day | Otero Jose ManuelChief Operating Officer | SSale | −4.67K | $4.48 | −$20.9K | −3.3%137.5K after | |
| Jul 1, 2026 (view filing)6:48 PM ET | Jul 1 | Same day | Bhalla Narinder PalChief Medical Officer | SSale | −22.3K | $4.42 | −$98.6K | −21.3%82.2K after | |
| Jul 1, 2026 (view filing)6:47 PM ET | Jul 1 | Same day | Townsend Richard NolanChief Executive Officer | SSale | −25.9K | $4.48 | −$116.2K | −6.4%377.8K after | |
| May 20, 2026 (view filing) | May 18 | 2 days | Otero Jose ManuelChief Operating Officer | SSale | −1.30K | $5.07 | −$6.60K | −1.0%130.1K after | |
| May 20, 2026 (view filing) | May 18 | 2 days | Townsend Richard NolanChief Executive Officer | SSale | −3.34K | $5.06 | −$16.9K | −1.0%336.8K after | |
| Apr 7, 2026 (view filing) | Apr 6 | 1 day | Townsend Richard NolanChief Executive Officer | SSale | −55.0K | $5.69 | −$312.9K | −13.9%340.1K after | 10b5-1 |
| Feb 20, 2026 (view filing) | Feb 18 | 2 days | Otero Jose ManuelChief Operating Officer | SSale | −3.02K | $6.40 | −$19.3K | −2.3%125.5K after | |
| Feb 20, 2026 (view filing) | Nov 18, 2025 | 94 days | Otero Jose ManuelChief Operating Officer | SSale | −721 | $9.27 | −$6.68K | −1.1%63.5K after | Amended |
| Feb 20, 2026 (view filing) | Feb 18 | 2 days | Townsend Richard NolanChief Executive Officer | SSale | −10.2K | $6.38 | −$64.9K | −2.5%392.5K after | |
| Nov 20, 2025 (view filing) | Nov 18 | 2 days | See Tai SandiChief Development Officer | SSale | −386 | $9.27 | −$3.58K | −0.6%65.5K after | |
| Nov 20, 2025 (view filing) | Nov 18 | 2 days | Townsend Richard NolanChief Executive Officer | SSale | −1.13K | $9.27 | −$10.4K | −0.5%241.0K after | |
| Nov 20, 2025 (view filing) | Nov 18 | 2 days | Robertson JennyChief Legal Officer | SSale | −549 | $9.27 | −$5.09K | −0.8%68.4K after | |
| Nov 20, 2025 (view filing) | Nov 18 | 2 days | Adler EricChief Medical Officer | SSale | −615 | $9.27 | −$5.70K | −0.8%72.6K after | |
| Oct 17, 2025 (view filing) | Oct 17 | Same day | Otero Jose ManuelChief Technical Officer | SSale | −2.12K | $8.95 | −$18.9K | −3.2%64.2K after | 2 lots |
| Oct 17, 2025 (view filing) | Oct 17 | Same day | See Tai SandiChief Development Officer | SSale | −3.89K | $8.95 | −$34.8K | −5.6%65.9K after | 2 lots |
| Oct 17, 2025 (view filing) | Oct 17 | Same day | Townsend Richard NolanChief Executive Officer | SSale | −13.1K | $8.95 | −$117.5K | −5.1%242.1K after | 2 lots |
| Oct 17, 2025 (view filing) | Oct 17 | Same day | Robertson JennyChief Legal Officer | SSale | −3.53K | $8.95 | −$31.5K | −4.9%68.9K after | 2 lots |
| Oct 17, 2025 (view filing) | Oct 17 | Same day | Adler EricChief Medical Officer | SSale | −3.38K | $8.95 | −$30.3K | −4.4%73.3K after | 2 lots |
| Sep 10, 2025 (view filing) | Aug 18 | 23 days | Townsend Richard NolanChief Executive Officer | SSale | −1.11K | $4.67 | −$5.21K | −0.5%220.1K after | Amended |
| Aug 20, 2025 (view filing) | Aug 18 | 2 days | Otero Jose ManuelChief Technical Officer | SSale | −2.85K | $4.67 | −$13.3K | −4.5%60.4K after | |
| Aug 20, 2025 (view filing) | Aug 18 | 2 days | Robertson JennyChief Legal Officer | SSale | −542 | $4.67 | −$2.53K | −0.9%62.6K after | |
| Aug 20, 2025 (view filing) | Aug 18 | 2 days | Adler EricChief Medical Officer | SSale | −608 | $4.67 | −$2.84K | −0.9%67.1K after | |
| Aug 20, 2025 (view filing) | Aug 18 | 2 days | See Tai SandiChief Development Officer | SSale | −382 | $4.67 | −$1.78K | −0.6%58.9K after | |
| May 20, 2025 (view filing) | May 16 | 4 days | Townsend Richard NolanChief Executive Officer | SSale | −1.07K | $2.77 | −$2.97K | −0.5%221.2K after | |
| May 20, 2025 (view filing) | May 16 | 4 days | Adler EricChief Medical Officer | SSale | −585 | $2.77 | −$1.62K | −0.9%67.7K after | |
| May 20, 2025 (view filing) | May 16 | 4 days | Robertson JennyChief Legal Officer | SSale | −521 | $2.77 | −$1.44K | −0.8%63.1K after | |
| May 20, 2025 (view filing) | May 16 | 4 days | See Tai SandiChief Development Officer | SSale | −367 | $2.77 | −$1.02K | −0.6%59.2K after | |
| Feb 21, 2025 (view filing) | Feb 19 | 2 days | Townsend Richard NolanChief Executive Officer | SSale | −4.33K | $4.41 | −$19.1K | −1.9%220.1K after | |
| Feb 21, 2025 (view filing) | Feb 19 | 2 days | See Tai SandiChief Development Officer | SSale | −1.49K | $4.41 | −$6.55K | −2.7%53.9K after | |
| Feb 21, 2025 (view filing) | Feb 19 | 2 days | Adler EricChief Medical Officer | SSale | −2.36K | $4.41 | −$10.4K | −3.3%68.3K after | |
| Feb 21, 2025 (view filing) | Feb 19 | 2 days | Robertson JennyChief Legal Officer | SSale | −2.10K | $4.41 | −$9.27K | −3.5%57.9K after | |
| Dec 12, 2024 (view filing) | Dec 10 | 2 days | Townsend Richard NolanChief Executive Officer | SSale | −2.50K | $8.20 | −$20.5K | −2.0%120.7K after | 10b5-1 |
| Nov 26, 2024 (view filing) | Nov 25 | 1 day | Cholmondeley Paula HDirector | PPurchase | +15.0K | $6.99 | +$104.8K | +96.0%30.6K after | |
| Nov 13, 2024 (view filing) | Nov 11 | 2 days | Townsend Richard NolanChief Executive Officer | SSale | −2.50K | $7.82 | −$19.6K | −2.0%120.7K after | 10b5-1 |
| Oct 15, 2024 (view filing) | Oct 10 | 5 days | Townsend Richard NolanChief Executive Officer | SSale | −5.00K | $8.10 | −$40.5K | −4.0%120.7K after | 10b5-1 |
| Sep 11, 2024 (view filing) | Sep 10 | 1 day | Townsend Richard NolanChief Executive Officer | SSale | −5.00K | $10.65 | −$53.3K | −4.0%120.7K after | 10b5-1 |
| Aug 13, 2024 (view filing) | Aug 12 | 1 day | Townsend Richard NolanChief Executive Officer | SSale | −5.00K | $11.53 | −$57.6K | −4.0%120.7K after | 10b5-1 |
| Jul 12, 2024 (view filing) | Jul 10-11 | 2 days | Townsend Richard NolanChief Executive Officer | SSale | −55.0K | $16.79 | −$923.4K | −31.3%120.7K after | 4 lots10b5-1 |
| Jun 12, 2024 (view filing) | Jun 10 | 2 days | Townsend Richard NolanChief Executive Officer | SSale | −5.00K | $17.65 | −$88.3K | −2.8%170.7K after | 2 lots10b5-1 |
| May 14, 2024 (view filing) | May 13 | 1 day | Townsend Richard NolanChief Executive Officer | SSale | −5.00K | $13.22 | −$66.1K | −2.8%170.7K after | 10b5-1 |
| Nov 9, 2023 (view filing)8:36 PM ET | Nov 7 | 2 days | Stampacchia Otello and 5 others10% Owner | PPurchase | +454.5K | $11.00 | +$5.00M | +26.7%2.16M after | |
| Nov 9, 2023 (view filing)8:32 PM ET | Nov 7 | 2 days | Enright Patrick G and 3 others10% Owner | PPurchase | +454.5K | $11.00 | +$5.00M | +21.5%2.57M after | |
| Nov 9, 2023 (view filing) | Nov 7 | 2 days | Lundbeckfond Invest A/S10% Owner | PPurchase | +227.3K | $11.00 | +$2.50M | +14.1%1.84M after |