SEPN
Septerna, Inc. Common Stock
stockNASDAQ
Market OpenOct 5, 2026 1:28:44 PM EDT
37.81USD+0.239%(+0.09)133,528
32.64Bid37.98Ask5.34SpreadAs of 2026-09-15, there were 2,894,002 shares short with a short interest of 15.33%.
SEPN Short Interest - Official
Short Interest
SEPN Short Position Change - Official
Short Position Change
SEPN Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-15 | 15.33 | 2,894,002 | 9.54 | +175,670 | +6.46 | 46,676,947 | 18,875,379 |
| 2026-08-31 | 14.40 | 2,718,332 | 7.65 | -156,358 | -5.44 | 46,676,947 | 18,875,379 |
| 2026-08-14 | 15.23 | 2,874,690 | 5.06 | -633,275 | -18.05 | 46,676,947 | 18,875,379 |
| 2026-07-31 | 18.58 | 3,507,965 | 14.15 | +157,348 | +4.70 | 45,075,533 | 18,875,379 |
| 2026-07-15 | 17.75 | 3,350,617 | 5.72 | +196,486 | +6.23 | 45,075,533 | 18,875,379 |
| 2026-06-30 | 16.71 | 3,154,131 | 5.28 | +488,733 | +18.34 | 45,075,533 | 18,875,379 |
| 2026-06-15 | 14.12 | 2,665,398 | 7.78 | +275,273 | +11.52 | 45,075,533 | 18,875,379 |
| 2026-05-15 | 12.66 | 2,390,125 | 7.43 | +322,454 | +15.60 | 45,075,533 | 18,875,379 |
| 2026-04-30 | 11.03 | 2,067,671 | 5.44 | -389,632 | -15.86 | 44,906,374 | 18,749,193 |
| 2026-04-15 | 13.11 | 2,457,303 | 8.06 | +280,584 | +12.89 | 44,906,374 | 18,749,193 |
| 2026-03-31 | 11.61 | 2,176,719 | 8.73 | +99,918 | +4.81 | 44,906,374 | 18,749,193 |
| 2026-03-13 | 11.08 | 2,076,801 | 6.25 | +227,997 | +12.33 | 44,774,192 | 18,749,193 |
| 2026-02-27 | 9.86 | 1,848,804 | 5.61 | +69,773 | +3.92 | 44,774,192 | 18,749,193 |
| 2026-02-13 | 9.49 | 1,779,031 | 6.34 | -145,956 | -7.58 | 44,774,192 | 18,749,193 |
| 2026-01-30 | 10.27 | 1,924,987 | 7.66 | -16,026 | -0.83 | 44,774,192 | 18,749,193 |
| 2026-01-15 | 10.35 | 1,941,013 | 6.08 | +513,915 | +36.01 | 44,774,192 | 18,749,193 |
| 2025-12-31 | 7.61 | 1,427,098 | 5.54 | +149,775 | +11.73 | 44,774,192 | 18,749,193 |
| 2025-12-15 | 6.81 | 1,277,323 | 4.65 | -200,102 | -13.54 | 44,774,192 | 18,749,193 |
| 2025-11-28 | 7.88 | 1,477,425 | 3.65 | -444,166 | -23.11 | 44,774,192 | 18,749,193 |
| 2025-11-14 | 10.46 | 1,921,591 | 5.45 | -104,076 | -5.14 | 44,774,192 | 18,368,612 |
| 2025-10-31 | 11.14 | 2,025,667 | 7.72 | -545,349 | -21.21 | 44,585,135 | 18,179,589 |
| 2025-10-15 | 14.14 | 2,571,016 | 5.80 | -503,361 | -16.37 | 44,585,135 | 18,179,589 |
Historical data is split-adjusted.
1 Data from Finra. Finra publishes an updated file every two weeks.
2 Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.