ALT

Altimmune, Inc.

Company with tickers: ALT

CIK
1326190
CUSIP
02155H200
Shares Outstanding
130,105,177

Short Interest History

Settlement Date Current Position Previous Position Change Days to Cover
2026-03-13 26,485,081 25,499,023 +986,058 6.96
2026-02-27 25,499,023 25,131,694 +367,329 9.97
2026-02-13 25,131,694 24,163,422 +968,272 7.24
2026-01-30 24,163,422 26,407,860 -2,244,438 3.50
2026-01-15 26,407,860 25,810,012 +597,848 4.24
2025-12-31 25,810,012 23,718,017 +2,091,995 4.69
2025-12-15 23,718,017 23,157,756 +560,261 6.24
2025-11-28 23,157,756 23,285,097 -127,341 7.04
2025-11-14 23,285,097 21,780,366 +1,504,731 7.12
2025-10-31 21,780,366 21,503,786 +276,580 8.70
2025-10-15 21,503,786 26,194,292 -4,690,506 7.25
2025-09-30 26,194,292 25,084,923 +1,109,369 8.70
2025-09-15 25,084,923 26,765,712 -1,680,789 13.17
2025-08-29 26,765,712 25,460,460 +1,305,252 8.59
2025-08-15 25,460,460 25,760,339 -299,879 9.15
2025-07-31 25,760,339 28,097,407 -2,337,068 7.87
2025-07-15 28,097,407 31,181,920 -3,084,513 4.33
2025-06-30 31,181,920 24,400,612 +6,781,308 1.94
2025-06-13 24,400,612 21,981,785 +2,418,827 6.01
2025-05-30 21,981,785 22,671,188 -689,403 10.97
2025-05-15 22,671,188 22,577,420 +93,768 8.12
2025-04-30 22,577,420 22,441,494 +135,926 13.78
2025-04-15 22,441,494 21,815,146 +626,348 9.02
2025-03-31 21,815,146 22,452,019 -636,873 9.41