Lexeo Therapeutics (LXEO)
Lexeo Therapeutics on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq.
19.2M
Short interest
settlement 2026-09-30
9.0
Days to cover
-24.4 days vs prior
53.9%
Short share of volume
2026-10-22
9
Fails to deliver
settlement 2026-09-29
Wed 4 Nov
Next earnings
estimated date
-$43K
Insider flow, 90 days
0 buys, 3 sells
As of 2026-10-22.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in LXEO is 19,246,976 shares, down 1,238,501 shares over the last month. Over the last 48 readings it ranged from 1,879,532 shares (31 January 2025) to 20,627,916 shares (15 September 2026). The latest reading sits at the top of that range. At the reported average volume of 2.1M shares a day that is 9.0 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 19,246,976 | -6.7% | 2,129,601 | 9.04 |
| 2026-09-15 | 20,627,916 | +0.7% | 616,778 | 33.44 |
| 2026-08-31 | 20,485,477 | +0.0% | 763,910 | 26.82 |
| 2026-08-14 | 20,477,587 | +20.1% | 1,035,720 | 19.77 |
| 2026-07-31 | 17,054,582 | +4.3% | 1,010,878 | 16.87 |
| 2026-07-15 | 16,348,536 | +1.4% | 836,123 | 19.55 |
| 2026-06-30 | 16,129,164 | +14.5% | 1,150,335 | 14.02 |
| 2026-06-15 | 14,088,171 | +2.3% | 748,947 | 18.81 |
| 2026-05-29 | 13,775,211 | +4.3% | 793,543 | 17.36 |
| 2026-05-15 | 13,212,896 | +1.1% | 702,022 | 18.82 |
| 2026-04-30 | 13,065,123 | +3.7% | 690,524 | 18.92 |
| 2026-04-15 | 12,604,284 | +0.9% | 1,277,092 | 9.87 |
| 2026-03-31 | 12,497,266 | +5.9% | 883,608 | 14.14 |
| 2026-03-13 | 11,797,859 | +6.0% | 1,038,736 | 11.36 |
| 2026-02-27 | 11,125,688 | -2.9% | 583,925 | 19.05 |
| 2026-02-13 | 11,459,188 | -4.3% | 893,186 | 12.83 |
| 2026-01-30 | 11,976,055 | +4.5% | 822,896 | 14.55 |
| 2026-01-15 | 11,456,768 | +5.8% | 1,673,547 | 6.85 |
| 2025-12-31 | 10,830,747 | +52.5% | 1,852,202 | 5.85 |
| 2025-12-15 | 7,101,931 | +17.6% | 984,718 | 7.21 |
| 2025-11-28 | 6,037,215 | +7.1% | 1,047,418 | 5.76 |
| 2025-11-14 | 5,636,938 | +8.8% | 1,640,748 | 3.44 |
| 2025-10-31 | 5,183,029 | -29.1% | 1,306,452 | 3.97 |
| 2025-10-15 | 7,315,216 | +22.7% | 1,568,772 | 4.66 |
| 2025-09-30 | 5,963,424 | +1.2% | 956,163 | 6.24 |
| 2025-09-15 | 5,891,889 | +12.6% | 537,745 | 10.96 |
| 2025-08-29 | 5,230,612 | -1.0% | 308,893 | 16.93 |
| 2025-08-15 | 5,284,045 | +0.7% | 291,164 | 18.15 |
| 2025-07-31 | 5,249,721 | +1.4% | 495,687 | 10.59 |
| 2025-07-15 | 5,178,268 | +0.6% | 430,484 | 12.03 |
| 2025-06-30 | 5,150,197 | +7.7% | 577,492 | 8.92 |
| 2025-06-13 | 4,783,707 | +26.5% | 766,110 | 6.24 |
| 2025-05-30 | 3,780,317 | +21.4% | 812,737 | 4.65 |
| 2025-05-15 | 3,114,846 | -4.6% | 1,145,454 | 2.72 |
| 2025-04-30 | 3,264,722 | +11.1% | 665,318 | 4.91 |
| 2025-04-15 | 2,939,149 | +14.0% | 1,405,690 | 2.09 |
| 2025-03-31 | 2,579,137 | +16.4% | 1,170,430 | 2.20 |
| 2025-03-14 | 2,215,452 | -9.0% | 598,527 | 3.70 |
| 2025-02-28 | 2,434,379 | +5.3% | 385,116 | 6.32 |
| 2025-02-14 | 2,310,952 | +22.9% | 309,466 | 7.47 |
| 2025-01-31 | 1,879,532 | -18.8% | 239,851 | 7.84 |
| 2025-01-15 | 2,313,252 | +3.4% | 215,499 | 10.73 |
| 2024-12-31 | 2,237,640 | +9.1% | 187,441 | 11.94 |
| 2024-12-13 | 2,050,771 | -6.9% | 327,812 | 6.26 |
| 2024-11-29 | 2,202,096 | -11.7% | 225,971 | 9.75 |
| 2024-11-15 | 2,494,616 | +13.7% | 832,235 | 3.00 |
| 2024-10-31 | 2,193,871 | +6.6% | 399,399 | 5.49 |
| 2024-10-15 | 2,058,541 | -0.7% | 243,116 | 8.47 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 22 October 2026, the short share of LXEO volume is 53.9%, up 15.5 points over the last five sessions. Over the last 30 readings it ranged from 26.3% (30 September 2026) to 66.7% (21 October 2026). The latest reading is 9.4 points above the 30-session average of 44.4%, on 153K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-22 | 83K | 153K | 53.9% | 0 |
| 2026-10-21 | 241K | 361K | 66.7% | 0 |
| 2026-10-20 | 158K | 418K | 37.7% | 2,611 |
| 2026-10-19 | 249K | 465K | 53.5% | 0 |
| 2026-10-16 | 229K | 469K | 48.8% | 0 |
| 2026-10-15 | 188K | 492K | 38.3% | 3,767 |
| 2026-10-14 | 312K | 953K | 32.7% | 0 |
| 2026-10-13 | 329K | 787K | 41.9% | 0 |
| 2026-10-12 | 221K | 462K | 47.9% | 0 |
| 2026-10-09 | 135K | 305K | 44.4% | 0 |
| 2026-10-08 | 345K | 1.1M | 31.6% | 0 |
| 2026-10-07 | 139K | 336K | 41.3% | 0 |
| 2026-10-06 | 213K | 704K | 30.2% | 0 |
| 2026-10-05 | 244K | 655K | 37.2% | 0 |
| 2026-10-02 | 477K | 955K | 50.0% | 0 |
| 2026-10-01 | 411K | 848K | 48.5% | 0 |
| 2026-09-30 | 251K | 953K | 26.3% | 111 |
| 2026-09-29 | 1.1M | 3.4M | 31.6% | 4,400 |
| 2026-09-28 | 248K | 432K | 57.4% | 98 |
| 2026-09-25 | 249K | 410K | 60.6% | 0 |
| 2026-09-24 | 318K | 571K | 55.7% | 38,906 |
| 2026-09-23 | 532K | 1.1M | 48.6% | 9,887 |
| 2026-09-22 | 372K | 1.1M | 33.8% | 0 |
| 2026-09-21 | 141K | 312K | 45.3% | 0 |
| 2026-09-18 | 79K | 170K | 46.5% | 0 |
| 2026-09-17 | 135K | 375K | 36.0% | 0 |
| 2026-09-16 | 96K | 176K | 54.4% | 0 |
| 2026-09-15 | 232K | 353K | 65.9% | 0 |
| 2026-09-14 | 151K | 549K | 27.5% | 0 |
| 2026-09-11 | 193K | 492K | 39.3% | 68 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 29 September 2026, the fails-to-deliver balance in LXEO is 9 shares, down 604 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (27 July 2026) to 54,627 shares (13 March 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-29 | 9 | $3.14 | $28 |
| 2026-09-25 | 613 | $3.39 | $2K |
| 2026-09-02 | 29 | $4.70 | $136 |
| 2026-08-25 | 27 | $4.92 | $133 |
| 2026-08-24 | 100 | $4.88 | $488 |
| 2026-08-21 | 3,272 | $5.06 | $17K |
| 2026-08-14 | 1,007 | $4.96 | $5K |
| 2026-08-05 | 2,209 | $4.41 | $10K |
| 2026-08-04 | 20,000 | $4.20 | $84K |
| 2026-08-03 | 5 | $4.13 | $21 |
| 2026-07-27 | 1 | $4.66 | $5 |
| 2026-07-07 | 53 | $4.60 | $244 |
| 2026-07-01 | 256 | $4.66 | $1K |
| 2026-06-30 | 13 | $4.81 | $63 |
| 2026-06-25 | 4 | $4.89 | $20 |
| 2026-06-24 | 190 | $4.92 | $935 |
| 2026-06-22 | 3,808 | $4.93 | $19K |
| 2026-06-15 | 678 | $4.37 | $3K |
| 2026-06-09 | 1,824 | $4.21 | $8K |
| 2026-06-08 | 16,449 | $4.37 | $72K |
| 2026-05-21 | 1,442 | $5.12 | $7K |
| 2026-05-19 | 1,053 | $4.71 | $5K |
| 2026-03-27 | 178 | $5.65 | $1K |
| 2026-03-20 | 22,360 | $5.79 | $129K |
| 2026-03-17 | 4 | $6.57 | $26 |
| 2026-03-16 | 54,209 | $6.66 | $361K |
| 2026-03-13 | 54,627 | $6.63 | $362K |
| 2026-03-04 | 52 | $7.07 | $368 |
| 2026-02-27 | 4,128 | $6.90 | $28K |
| 2026-02-10 | 27,629 | $7.20 | $199K |
Insider trades
SEC Form 4, newest first. JSONInsiders at LXEO reported 3 open-market sells worth $43K in the last 90 days and no open-market buys. Latest filing: Townsend Richard Nolan (Chief Executive Officer) on 2026-09-14.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-14 | Townsend Richard Nolan | Chief Executive Officer | Grant | 2K | $2.64 | $6K | 377K |
| 2026-09-14 | Otero Jose Manuel | Chief Operating Officer | Grant | 2K | $2.64 | $6K | 138K |
| 2026-09-14 | Bhalla Narinder Pal | Chief Medical Officer | Grant | 3K | $3.58 | $10K | 85K |
| 2026-08-18 | Tamayo Louis Edward | Chief Financial Officer | Sell | 4K | $4.91 | $20K | 93K |
| 2026-08-18 | Otero Jose Manuel | Chief Operating Officer | Sell | 1K | $4.96 | $6K | 136K |
| 2026-08-18 | Townsend Richard Nolan | Chief Executive Officer | Sell | 3K | $4.95 | $17K | 374K |
| 2026-07-01 | Tamayo Louis Edward | Chief Financial Officer | Sell | 5K | $4.49 | $21K | 97K |
| 2026-07-01 | Otero Jose Manuel | Chief Operating Officer | Sell | 5K | $4.48 | $21K | 137K |
| 2026-07-01 | Townsend Richard Nolan | Chief Executive Officer | Sell | 26K | $4.48 | $116K | 378K |
| 2026-07-01 | Bhalla Narinder Pal | Chief Medical Officer | Sell | 22K | $4.42 | $99K | 82K |
| 2026-06-29 | Tamayo Louis Edward | Chief Financial Officer | Grant | 12K | $0.00 | $0 | 102K |
| 2026-06-29 | Otero Jose Manuel | Chief Operating Officer | Grant | 12K | $0.00 | $0 | 142K |
| 2026-06-29 | Townsend Richard Nolan | Chief Executive Officer | Grant | 67K | $0.00 | $0 | 404K |
| 2026-06-29 | Bhalla Narinder Pal | Chief Medical Officer | Grant | 55K | $0.00 | $0 | 105K |
| 2026-05-18 | Otero Jose Manuel | Chief Operating Officer | Sell | 1K | $5.07 | $7K | 130K |
| 2026-05-18 | Townsend Richard Nolan | Chief Executive Officer | Sell | 3K | $5.06 | $17K | 337K |
| 2026-04-06 | Townsend Richard Nolan | Chief Executive Officer | Sell | 55K | $5.69 | $313K | 340K |
| 2026-03-13 | Otero Jose Manuel | Chief Operating Officer | Grant | 6K | $2.64 | $16K | 131K |
| 2026-03-13 | Townsend Richard Nolan | Chief Executive Officer | Grant | 3K | $2.64 | $7K | 395K |
| 2026-02-18 | Otero Jose Manuel | Chief Operating Officer | Sell | 3K | $6.40 | $19K | 125K |
| 2026-02-18 | Townsend Richard Nolan | Chief Executive Officer | Sell | 10K | $6.38 | $65K | 392K |
| 2026-02-13 | Bhalla Narinder Pal | Chief Medical Officer | Grant | 50K | $0.00 | $0 | 50K |
| 2026-02-04 | Tamayo Louis Edward | Chief Financial Officer | Grant | 45K | $0.00 | $0 | 90K |
| 2026-02-04 | Otero Jose Manuel | Chief Operating Officer | Grant | 65K | $0.00 | $0 | 128K |
| 2026-02-04 | Townsend Richard Nolan | Chief Executive Officer | Grant | 162K | $0.00 | $0 | 403K |
| 2025-11-18 | Otero Jose Manuel | Chief Operating Officer | Sell | 721 | $9.27 | $7K | 63K |
| 2025-11-18 | See Tai Sandi | Chief Development Officer | Sell | 386 | $9.27 | $4K | 65K |
| 2025-11-18 | Townsend Richard Nolan | Chief Executive Officer | Sell | 1K | $9.27 | $10K | 241K |
| 2025-11-18 | Robertson Jenny | Chief Legal Officer | Sell | 549 | $9.27 | $5K | 68K |
| 2025-11-18 | Adler Eric | Chief Medical Officer | Sell | 615 | $9.27 | $6K | 73K |
| 2025-10-17 | Otero Jose Manuel | Chief Technical Officer | Sell | 24 | $9.56 | $229 | 64K |
| 2025-10-17 | Otero Jose Manuel | Chief Technical Officer | Sell | 2K | $8.94 | $19K | 64K |
| 2025-10-17 | See Tai Sandi | Chief Development Officer | Sell | 44 | $9.56 | $421 | 66K |
| 2025-10-17 | See Tai Sandi | Chief Development Officer | Sell | 4K | $8.94 | $34K | 66K |
| 2025-10-17 | Townsend Richard Nolan | Chief Executive Officer | Sell | 148 | $9.56 | $1K | 242K |
| 2025-10-17 | Townsend Richard Nolan | Chief Executive Officer | Sell | 13K | $8.94 | $116K | 242K |
| 2025-10-17 | Robertson Jenny | Chief Legal Officer | Sell | 40 | $9.56 | $382 | 69K |
| 2025-10-17 | Robertson Jenny | Chief Legal Officer | Sell | 3K | $8.94 | $31K | 69K |
| 2025-10-17 | Adler Eric | Chief Medical Officer | Sell | 38 | $9.56 | $363 | 73K |
| 2025-10-17 | Adler Eric | Chief Medical Officer | Sell | 3K | $8.94 | $30K | 73K |
| 2025-10-15 | Otero Jose Manuel | Chief Technical Officer | Grant | 6K | $0.00 | $0 | 66K |
| 2025-10-15 | See Tai Sandi | Chief Development Officer | Grant | 11K | $0.00 | $0 | 70K |
| 2025-10-15 | Townsend Richard Nolan | Chief Executive Officer | Grant | 33K | $0.00 | $0 | 255K |
| 2025-10-15 | Robertson Jenny | Chief Legal Officer | Grant | 10K | $0.00 | $0 | 72K |
| 2025-10-15 | Adler Eric | Chief Medical Officer | Grant | 10K | $0.00 | $0 | 77K |
| 2025-09-12 | Townsend Richard Nolan | Chief Executive Officer | Grant | 2K | $2.64 | $6K | 222K |
| 2025-08-29 | Tamayo Louis Edward | Chief Financial Officer | Grant | 45K | $0.00 | $0 | 45K |
| 2025-08-18 | Townsend Richard Nolan | Chief Executive Officer | Sell | 1K | $4.67 | $5K | 220K |
| 2025-08-18 | Otero Jose Manuel | Chief Technical Officer | Sell | 3K | $4.67 | $13K | 60K |
| 2025-08-18 | Robertson Jenny | Chief Legal Officer | Sell | 542 | $4.67 | $3K | 63K |
| 2025-08-18 | Townsend Richard Nolan | Chief Executive Officer | Sell | 3K | $4.67 | $13K | 220K |
| 2025-08-18 | See Tai Sandi | Chief Development Officer | Sell | 382 | $4.67 | $2K | 59K |
| 2025-08-18 | Adler Eric | Chief Medical Officer | Sell | 608 | $4.67 | $3K | 67K |
| 2025-08-18 | Otero Jose Manuel | Chief Technical Officer | Sell | 721 | $9.27 | $7K | 63K |
| 2025-05-16 | See Tai Sandi | Chief Development Officer | Sell | 367 | $2.77 | $1K | 59K |
| 2025-05-16 | Robertson Jenny | Chief Legal Officer | Sell | 521 | $2.77 | $1K | 63K |
| 2025-05-16 | Adler Eric | Chief Medical Officer | Sell | 585 | $2.77 | $2K | 68K |
| 2025-05-16 | Townsend Richard Nolan | Chief Executive Officer | Sell | 1K | $2.77 | $3K | 221K |
| 2025-03-14 | Townsend Richard Nolan | Chief Executive Officer | Grant | 2K | $2.61 | $6K | 222K |
| 2025-03-14 | See Tai Sandi | Chief Development Officer | Grant | 6K | $2.61 | $15K | 60K |
| 2025-03-14 | Robertson Jenny | Chief Legal Officer | Grant | 6K | $2.61 | $15K | 64K |
| 2025-03-14 | Otero Jose Manuel | Chief Technical Officer | Grant | 6K | $2.61 | $15K | 63K |
| 2025-02-19 | Robertson Jenny | Chief Legal Officer | Sell | 2K | $4.41 | $9K | 58K |
| 2025-02-19 | Adler Eric | Chief Medical Officer | Sell | 2K | $4.41 | $10K | 68K |
| 2025-02-19 | See Tai Sandi | Chief Development Officer | Sell | 1K | $4.41 | $7K | 54K |
| 2025-02-19 | Townsend Richard Nolan | Chief Executive Officer | Sell | 4K | $4.41 | $19K | 220K |
| 2025-01-17 | Rasbach Kyle | Chief Financial Officer | Grant | 41K | $0.00 | $0 | 41K |
| 2025-01-07 | Adler Eric | Chief Medical Officer | Grant | 44K | $0.00 | $0 | 71K |
| 2025-01-07 | See Tai Sandi | Chief Development Officer | Grant | 39K | $0.00 | $0 | 55K |
| 2025-01-07 | Robertson Jenny | Chief Legal & Admin Officer | Grant | 36K | $0.00 | $0 | 60K |
| 2025-01-07 | Otero Jose Manuel | Chief Technical Officer | Grant | 26K | $0.00 | $0 | 58K |
| 2025-01-07 | Townsend Richard Nolan | Chief Executive Officer | Grant | 104K | $0.00 | $0 | 224K |
| 2024-12-10 | Townsend Richard Nolan | Chief Executive Officer | Sell | 3K | $8.20 | $21K | 121K |
| 2024-12-10 | Townsend Richard Nolan | Chief Executive Officer | Exercise or conversion | 3K | $2.33 | $6K | 123K |
| 2024-11-25 | CHOLMONDELEY PAULA H | Director | Buy | 15K | $6.99 | $105K | 31K |
| 2024-11-11 | Townsend Richard Nolan | Chief Executive Officer | Exercise or conversion | 3K | $2.33 | $6K | 123K |
| 2024-11-11 | Townsend Richard Nolan | Chief Executive Officer | Sell | 3K | $7.82 | $20K | 121K |
| 2024-10-10 | Townsend Richard Nolan | Chief Executive Officer | Sell | 5K | $8.10 | $41K | 121K |
| 2024-10-10 | Townsend Richard Nolan | Chief Executive Officer | Exercise or conversion | 5K | $2.33 | $12K | 126K |
| 2024-09-10 | Townsend Richard Nolan | Chief Executive Officer | Exercise or conversion | 5K | $2.33 | $12K | 126K |
| 2024-09-10 | Townsend Richard Nolan | Chief Executive Officer | Sell | 5K | $10.65 | $53K | 121K |
| 2024-08-12 | Townsend Richard Nolan | Chief Executive Officer | Exercise or conversion | 5K | $2.33 | $12K | 126K |
| 2024-08-12 | Townsend Richard Nolan | Chief Executive Officer | Sell | 5K | $11.53 | $58K | 121K |
| 2024-07-11 | Townsend Richard Nolan | Chief Executive Officer | Sell | 28K | $17.06 | $477K | 121K |
| 2024-07-11 | Townsend Richard Nolan | Chief Executive Officer | Sell | 100 | $19.06 | $2K | 121K |
| 2024-07-10 | Townsend Richard Nolan | Chief Executive Officer | Sell | 3K | $16.85 | $56K | 149K |
| 2024-07-10 | Townsend Richard Nolan | Chief Executive Officer | Sell | 24K | $16.45 | $389K | 152K |
| 2024-07-10 | Townsend Richard Nolan | Chief Executive Officer | Exercise or conversion | 5K | $2.33 | $12K | 176K |
| 2024-06-12 | Otero Jose Manuel | Chief Technical Officer | Grant | 31K | $0.00 | $0 | 31K |
| 2024-06-10 | Townsend Richard Nolan | Chief Executive Officer | Sell | 2K | $18.18 | $37K | 171K |
| 2024-06-10 | Townsend Richard Nolan | Chief Executive Officer | Sell | 3K | $17.29 | $51K | 173K |
| 2024-06-10 | Townsend Richard Nolan | Chief Executive Officer | Exercise or conversion | 5K | $2.33 | $12K | 176K |
| 2024-05-13 | Townsend Richard Nolan | Chief Executive Officer | Exercise or conversion | 5K | $2.33 | $12K | 176K |
| 2024-05-13 | Townsend Richard Nolan | Chief Executive Officer | Sell | 5K | $13.22 | $66K | 171K |
| 2024-02-02 | Adler Eric | Chief Medical Officer | Grant | 27K | $0.00 | $0 | 27K |
| 2024-01-05 | Robertson Jenny | Chief Legal and Admin Officer | Grant | 24K | $0.00 | $0 | 24K |
| 2024-01-05 | Townsend Richard Nolan | Chief Executive Officer | Grant | 44K | $0.00 | $0 | 171K |
| 2023-11-07 | Longitude Venture Partners IV, L.P. | TenPercentOwner | Conversion | 1.8M | price not stated in the filing | not stated | 1.8M |
| 2023-11-07 | Longitude Venture Partners IV, L.P. | TenPercentOwner | Conversion | 319K | price not stated in the filing | not stated | 2.1M |
| 2023-11-07 | Longitude Venture Partners IV, L.P. | TenPercentOwner | Buy | 455K | $11.00 | $5.0M | 2.6M |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON26 Form 144 notices on file for LXEO worth $1.1M at the prices reported; 3 in the last 90 days worth $43K. Latest: Townsend Richard Nolan filed on 2026-08-18 to sell 3,345 shares ($17K) from 2026-08-18.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-08-18 | Townsend Richard NolanOfficer, Director | 3K | $17K | 0.004% | 2026-08-18 | Fidelity Brokerage Services LLC |
| 2026-08-18 | Otero Jose ManuelOfficer | 1K | $6K | 0.002% | 2026-08-18 | Fidelity Brokerage Services LLC |
| 2026-08-18 | Tamayo Louis EdwardOfficer | 4K | $20K | 0.005% | 2026-08-18 | Fidelity Brokerage Services LLC |
| 2026-07-01 | Otero Jose ManuelOfficer | 5K | $21K | 0.006% | 2026-07-01 | Fidelity Brokerage Services LLC |
| 2026-07-01 | Tamayo Louis EdwardOfficer | 5K | $21K | 0.006% | 2026-07-01 | Fidelity Brokerage Services LLC |
| 2026-07-01 | Townsend Richard NolanOfficer, Director | 26K | $116K | 0.033% | 2026-07-01 | Fidelity Brokerage Services LLC |
| 2026-07-01 | Bhalla Narinder PalOfficer | 22K | $99K | 0.028% | 2026-07-01 | Fidelity Brokerage Services LLC |
| 2026-05-18 | Townsend Richard NolanOfficer, Director | 3K | $17K | 0.004% | 2026-05-18 | Fidelity Brokerage Services LLC |
| 2026-05-18 | Otero Jose ManuelOfficer | 1K | $7K | 0.002% | 2026-05-18 | Fidelity Brokerage Services LLC |
| 2026-05-18 | Adler EricOfficer | 2K | $8K | 0.002% | 2026-05-18 | Fidelity Brokerage Services LLC |
| 2026-04-06 | Richard Nolan TownsendDirector, Officer | 55K | $315K | 0.074% | 2026-04-06 | J.P. Morgan Securities LLC |
| 2026-02-18 | Townsend Richard NolanOfficer, Director | 11K | $73K | 0.016% | 2026-02-18 | Fidelity Brokerage Services LLC |
| 2026-02-18 | Otero Jose ManuelOfficer | 3K | $19K | 0.004% | 2026-02-18 | Fidelity Brokerage Services LLC |
| 2026-02-18 | See Tai SandiOfficer | 4K | $25K | 0.005% | 2026-02-18 | Fidelity Brokerage Services LLC |
| 2026-02-18 | Robertson JennyOfficer | 4K | $24K | 0.005% | 2026-02-18 | Fidelity Brokerage Services LLC |
| 2026-02-18 | Adler EricOfficer | 5K | $31K | 0.007% | 2026-02-18 | Fidelity Brokerage Services LLC |
| 2025-11-18 | Robertson JennyOfficer | 549 | $5K | 0.001% | 2025-11-18 | Fidelity Brokerage Services LLC |
| 2025-11-18 | See Tai SandiOfficer | 386 | $4K | 0.001% | 2025-11-18 | Fidelity Brokerage Services LLC |
| 2025-11-18 | Otero Jose ManuelOfficer | 721 | $7K | 0.001% | 2025-11-18 | Fidelity Brokerage Services LLC |
| 2025-11-18 | Townsend Richard NolanOfficer, Director | 1K | $10K | 0.002% | 2025-11-18 | Fidelity Brokerage Services LLC |
| 2025-11-18 | Adler EricOfficer | 615 | $6K | 0.001% | 2025-11-18 | Fidelity Brokerage Services LLC |
| 2025-10-17 | Otero Jose ManuelOfficer | 2K | $19K | 0.004% | 2025-10-17 | Fidelity Brokerage Services LLC |
| 2025-10-17 | Robertson JennyOfficer | 4K | $32K | 0.007% | 2025-10-17 | Fidelity Brokerage Services LLC |
| 2025-10-17 | Townsend Richard NolanOfficer, Director | 13K | $117K | 0.024% | 2025-10-17 | Fidelity Brokerage Services LLC |
| 2025-10-17 | See Tai SandiOfficer | 4K | $35K | 0.007% | 2025-10-17 | Fidelity Brokerage Services LLC |
| 2025-10-17 | Adler EricOfficer | 3K | $30K | 0.006% | 2025-10-17 | Fidelity Brokerage Services LLC |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first, 50 of 57 shown. JSON31 holders report 5% or more of LXEO in their latest filing, all on Schedule 13G (passive). The largest reported stake is Balyasny Asset Management Holdings LP at 10.0% of the class (7,844,311 shares), filed 2026-08-14 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-10-13 | 13G | JPMORGAN CHASE & CO.parent holding company | 4.6M | 5.5% | 2026-09-30 |
| 2026-08-14 | 13G/Ano. 4 | Balyasny Asset Management Holdings LPparent holding company, partnership | 7.8M | 10.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 4 | BALYASNY ASSET MANAGEMENT L.P.investment adviser, partnership | 7.8M | 10.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 4 | BAM GP LLCparent holding company, other entity | 7.8M | 10.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 4 | Dames GP LLCparent holding company, other entity | 7.8M | 10.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 4 | Dmitry Balyasnyparent holding company, individual | 7.8M | 10.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 3 | Paradigm BioCapital Advisors GP LLCother entity | 4.2M | 5.3% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 3 | Senai Asefaw, M.D.individual | 4.2M | 5.3% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 3 | Paradigm BioCapital Advisors LPpartnership | 4.2M | 5.3% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 3 | Paradigm BioCapital International Fund Ltd.corporation | 3.7M | 4.7% | 2026-06-30 |
| 2026-08-14 | 13G | OrbiMed Advisors LLCinvestment adviser | 3.2M | 4.1% | 2026-06-30 |
| 2026-08-14 | 13G | OrbiMed Capital LLCinvestment adviser | 745K | 1.0% | 2026-06-30 |
| 2026-08-13 | 13G/Ano. 2 | Michael Choindividual, parent holding company | 6.7M | 8.4% | 2026-06-30 |
| 2026-08-13 | 13G/Ano. 2 | Affinity Asset Advisors, LLCinvestment adviser, other entity | 6.7M | 8.4% | 2026-06-30 |
| 2026-08-07 | 13G | STATE STREET CORPORATIONparent holding company | 4.4M | 5.5% | 2026-06-30 |
| 2026-04-13 | 13G | AARON COWENparent holding company, individual | 5.7M | 7.7% | 2026-04-06 |
| 2026-04-13 | 13G | SUVRETTA CAPITAL MANAGEMENT, LLCinvestment adviser, other entity | 5.7M | 7.7% | 2026-04-06 |
| 2026-04-13 | 13G | Averill Master Fund, Ltd.corporation | 4.8M | 6.5% | 2026-04-06 |
| 2026-03-27 | 13G/Ano. 1 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2026-02-17 | 13G/Ano. 3 | Kenneth Griffinparent holding company, individual | 5.5M | 7.4% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 3 | Citadel Advisors Holdings LPparent holding company, partnership | 5.4M | 7.2% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 3 | Citadel Advisors LLCinvestment adviser, parent holding company, other entity | 5.4M | 7.2% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 3 | Citadel GP LLCparent holding company, other entity | 5.4M | 7.2% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 3 | Citadel Securities GP LLCparent holding company, other entity | 93K | 0.1% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 3 | Citadel Securities Group LPparent holding company, partnership | 93K | 0.1% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 3 | Citadel Securities LLCbroker-dealer, other entity | 7K | 0.0% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 2 | FHMLSP, L.L.C.other entity | 3.7M | 5.1% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 2 | Frazier Life Sciences Public Fund, L.P.partnership | 3.7M | 5.1% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 2 | FHMLSP, L.P.partnership | 3.7M | 5.1% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 2 | Frazier Life Sciences XII, L.P.partnership | 406K | 0.6% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 2 | FHMLS XII, L.P.partnership | 406K | 0.6% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 2 | FHMLS XII, L.L.C.other entity | 406K | 0.6% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 2 | FHMLS XI, L.P.partnership | 233K | 0.3% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 2 | Frazier Life Sciences XI, L.P.partnership | 233K | 0.3% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 2 | FHMLS XI, L.L.C.other entity | 233K | 0.3% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 2 | James N. Topperindividual | 87K | 0.1% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 2 | Frazier Life Sciences X, L.P.partnership | 87K | 0.1% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 2 | FHMLS X, L.P.partnership | 87K | 0.1% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 2 | FHMLS X, L.L.C.other entity | 87K | 0.1% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 2 | Patrick J. Heronindividual | 87K | 0.1% | 2025-12-31 |
| 2026-01-21 | 13G | BlackRock, Inc.parent holding company | 4.9M | 6.7% | 2025-12-31 |
| 2025-12-08 | 13G/Ano. 7 | JANUS HENDERSON GROUP PLCinvestment adviser, parent holding company | 7.3M | 10.0% | 2025-11-28 |
| 2025-11-14 | 13G/Ano. 6 | Janus Henderson Biotech Innovation Master Fund Ltdinvestment company | 4.1M | 7.6% | 2025-09-30 |
| 2025-11-14 | 13G/Ano. 2 | Longitude Capital Partners IV, LLCother entity | 2.8M | 3.8% | 2025-09-30 |
| 2025-11-14 | 13G/Ano. 2 | Juliet Tammenoms Bakkerindividual | 2.8M | 3.8% | 2025-09-30 |
| 2025-11-14 | 13G/Ano. 2 | Patrick G. Enrightindividual | 2.8M | 3.8% | 2025-09-30 |
| 2025-11-14 | 13G/Ano. 2 | Longitude Venture Partners IV, L.P.partnership | 2.8M | 3.8% | 2025-09-30 |
| 2025-11-14 | 13G/Ano. 1 | Ryan Wilderparent holding company, individual | 4.1M | 7.5% | 2025-09-30 |
| 2025-11-14 | 13G/Ano. 1 | Vestal Point Capital, LPinvestment adviser, partnership | 4.1M | 7.5% | 2025-09-30 |
| 2025-11-07 | 13G/Ano. 2 | Israel A. Englanderindividual | 2.3M | 3.2% | 2025-09-30 |
13F holders
Tracked managers holding LXEO at their latest 13F. JSON6 of the 30 tracked managers held LXEO at their latest 13F, $34.3M in total at quarter-end prices. Citadel Advisors is the largest at $18.1M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 2 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Citadel Advisors | 2026-06-30 | 3.9M | $18.1M | 0.00% | +64K |
| Millennium Management | 2026-06-30 | 2.8M | $13.2M | 0.00% | +1.2M |
| AQR Capital Management | 2026-06-30 | 257K | $1.2M | 0.00% | -83K |
| Renaissance Technologies | 2026-06-30 | 250K | $1.2M | 0.00% | new |
| Fisher Asset Management | 2026-06-30 | 114K | $532K | 0.00% | new |
| D. E. Shaw & Co. | 2026-06-30 | 20K | $92K | 0.00% | -11K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
Lexeo Therapeutics in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Lexeo Therapeutics (LXEO), SEC CIK 1907108, listed on Nasdaq. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-22.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-29.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-08-18.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-10-13.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-12.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-14.JSON and CSV
- Company record
- EDGAR filing index for CIK 1907108Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of LXEO is sold short?
19,246,976 shares were held short at the 2026-09-30 settlement, 9.0 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is LXEO's daily short volume?
On 2026-10-22, 82,706 of the 153,489 LXEO shares reported to FINRA were sold short, 53.9% of the day's reported volume. Short volume is a flow for one day, not a position.
Does LXEO have fails to deliver?
The SEC's latest file shows 9 LXEO shares failed to deliver at settlement 2026-09-29. Fails are reported per settlement date and published twice a month with a lag.
Are LXEO insiders buying or selling?
Insiders at LXEO reported 3 open-market sells worth $43K in the last 90 days and no open-market buys. Latest filing: Townsend Richard Nolan (Chief Executive Officer) on 2026-09-14.
Have LXEO insiders filed to sell?
26 Form 144 notices on file for LXEO worth $1.1M at the prices reported; 3 in the last 90 days worth $43K. Latest: Townsend Richard Nolan filed on 2026-08-18 to sell 3,345 shares ($17K) from 2026-08-18.
Who owns 5% or more of LXEO?
31 holders report 5% or more of LXEO in their latest filing, all on Schedule 13G (passive). The largest reported stake is Balyasny Asset Management Holdings LP at 10.0% of the class (7,844,311 shares), filed 2026-08-14 for an event on 2026-06-30.
Which tracked 13F managers own LXEO?
6 of the 30 tracked 13F managers held LXEO shares at their latest filing, $34.3M in all. The largest: Ken Griffin's Citadel Advisors (3.9M shares, $18.1M), Izzy Englander's Millennium Management (2.8M shares, $13.2M), Cliff Asness's AQR Capital Management (257K shares, $1.2M), Renaissance Technologies (250K shares, $1.2M), Ken Fisher's Fisher Asset Management (114K shares, $532K), D. E. Shaw & Co. (20K shares, $92K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.