ALT
Altimmune, Inc.Company with tickers: ALT
CIK
1326190
CUSIP
02155H200
Shares Outstanding
194,474,154
13F Activity (30d)
147 filings
145 filers
Short Volume (Last 90 Days)
| Date | Short Volume | Short Exempt | Total Volume | Short % |
|---|---|---|---|---|
| 2026-05-28 | 767,920 | 21,061 | 2,096,914 | 36.6% |
| 2026-05-27 | 459,556 | 187 | 1,166,623 | 39.4% |
| 2026-05-26 | 362,926 | 0 | 1,023,407 | 35.5% |
| 2026-05-22 | 350,212 | 0 | 966,513 | 36.2% |
| 2026-05-21 | 463,799 | 3,607 | 1,830,184 | 25.3% |
| 2026-05-20 | 342,536 | 60 | 1,035,932 | 33.1% |
| 2026-05-19 | 521,428 | 1,107 | 1,218,061 | 42.8% |
| 2026-05-18 | 655,420 | 141 | 1,839,766 | 35.6% |
| 2026-05-15 | 506,634 | 1,064 | 1,276,818 | 39.7% |
| 2026-05-14 | 565,442 | 20,974 | 1,389,400 | 40.7% |
| 2026-05-13 | 670,438 | 2,524 | 1,638,919 | 40.9% |
| 2026-05-12 | 440,682 | 2 | 1,208,815 | 36.5% |
| 2026-05-11 | 758,328 | 12,652 | 1,486,828 | 51.0% |
| 2026-05-08 | 658,801 | 23 | 1,482,035 | 44.5% |
| 2026-05-07 | 994,315 | 3,800 | 1,929,282 | 51.5% |
| 2026-05-06 | 886,297 | 6,584 | 2,148,179 | 41.3% |
| 2026-05-05 | 797,859 | 6,000 | 1,758,615 | 45.4% |
| 2026-05-04 | 917,395 | 100 | 2,592,654 | 35.4% |
| 2026-05-01 | 1,027,293 | 0 | 2,324,489 | 44.2% |
| 2026-04-30 | 1,905,072 | 0 | 3,436,496 | 55.4% |
| 2026-04-29 | 1,616,710 | 8,346 | 2,546,964 | 63.5% |
| 2026-04-28 | 1,252,806 | 544 | 2,277,845 | 55.0% |
| 2026-04-27 | 1,764,406 | 161 | 3,018,995 | 58.4% |
| 2026-04-24 | 3,894,596 | 216,639 | 6,399,570 | 60.9% |
| 2026-04-23 | 9,998,203 | 599,761 | 15,704,910 | 63.7% |
| 2026-04-22 | 556,381 | 275 | 939,787 | 59.2% |
| 2026-04-21 | 774,258 | 100 | 1,534,469 | 50.5% |
| 2026-04-20 | 585,837 | 0 | 1,029,729 | 56.9% |
| 2026-04-17 | 603,721 | 1,600 | 1,445,873 | 41.8% |
| 2026-04-16 | 579,250 | 365 | 1,381,073 | 41.9% |
| 2026-04-15 | 402,449 | 4,739 | 1,063,900 | 37.8% |
| 2026-04-14 | 373,677 | 0 | 995,746 | 37.5% |
| 2026-04-13 | 413,973 | 0 | 1,105,663 | 37.4% |
| 2026-04-10 | 459,904 | 3,138 | 983,239 | 46.8% |
| 2026-04-09 | 437,077 | 233 | 977,887 | 44.7% |
| 2026-04-08 | 380,591 | 72 | 798,285 | 47.7% |
| 2026-04-07 | 487,513 | 0 | 982,318 | 49.6% |
| 2026-04-06 | 578,920 | 15 | 1,091,096 | 53.1% |