RNA
Atrium Therapeutics, Inc. Common Stock
stockNASDAQ
At CloseOct 2, 2026 3:59:56 PM EDT
7.84USD-3.686%(-0.30)533,806
Pre-marketOct 2, 2026 8:53:30 AM EDT
8.62USD+5.897%(+0.48)
As of 2026-09-15, there were 3,397,791 shares short with a short interest of 21.61%.
RNA Short Interest - Official
Short Interest
RNA Short Position Change - Official
Short Position Change
RNA 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 | 21.61 | 3,397,791 | 8.15 | +46,265 | +1.38 | 17,105,643 | 15,720,941 |
| 2026-08-31 | 21.32 | 3,351,526 | 19.79 | -129,323 | -3.72 | 17,105,643 | 15,720,941 |
| 2026-08-14 | 22.14 | 3,480,849 | 27.46 | -33,284 | -0.95 | 17,105,643 | 15,720,941 |
| 2026-07-31 | 22.35 | 3,514,133 | 28.39 | -77,091 | -2.15 | 17,105,643 | 15,720,941 |
| 2026-07-15 | 22.84 | 3,591,224 | 17.71 | -65,597 | -1.79 | 17,105,643 | 15,720,941 |
| 2026-06-30 | 23.26 | 3,656,821 | 12.52 | +46,403 | +1.29 | 17,105,643 | 15,720,941 |
| 2026-06-15 | 22.90 | 3,610,418 | 20.31 | -121,786 | -3.26 | 17,105,643 | 15,762,679 |
| 2026-05-15 | 24.82 | 3,732,204 | 21.18 | +306,249 | +8.94 | 17,105,643 | 15,036,174 |
| 2026-04-30 | 2.48 | 3,425,955 | 8.71 | +409,075 | +13.56 | 15,514,966 | 138,082,176 |
| 2026-04-15 | 2.18 | 3,016,880 | 6.00 | +1,103,180 | +57.65 | 15,514,966 | 138,082,176 |
| 2026-03-31 | 1.39 | 1,913,700 | 2.90 | +729,085 | +61.55 | 15,514,966 | 138,082,176 |
| 2026-03-13 | 0.86 | 1,184,615 | 1.00 | +751,817 | +173.71 | 15,514,966 | 138,082,176 |
| 2026-02-27 | 0.31 | 432,798 | 1.00 | -9,723,924 | -95.74 | 154,478,871 | 138,082,176 |
| 2026-02-13 | 7.36 | 10,156,722 | 3.56 | +1,411,525 | +16.14 | 154,478,871 | 138,082,176 |
| 2026-01-30 | 6.33 | 8,745,197 | 6.35 | +338,848 | +4.03 | 150,675,742 | 138,082,176 |
| 2026-01-15 | 6.09 | 8,406,349 | 4.20 | -385,447 | -4.38 | 150,675,742 | 138,082,176 |
| 2025-12-31 | 6.37 | 8,791,796 | 4.61 | -948,267 | -9.74 | 150,675,742 | 138,082,176 |
| 2025-12-15 | 7.05 | 9,740,063 | 4.12 | +874,485 | +9.86 | 150,675,742 | 138,249,056 |
| 2025-11-28 | 6.42 | 8,865,578 | 3.31 | -1,456,141 | -14.11 | 150,675,742 | 138,181,192 |
| 2025-11-14 | 7.15 | 10,321,719 | 2.03 | -176,039 | -1.68 | 150,675,742 | 144,309,692 |
| 2025-10-31 | 9.74 | 10,497,758 | 1.00 | -9,530,435 | -47.59 | 146,910,657 | 107,830,794 |
| 2025-10-15 | 18.57 | 20,028,193 | 13.50 | -722,811 | -3.48 | 145,903,337 | 107,830,794 |
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.