ALT · Altimmune, Inc.

$2.81 -0.06 (-2.09%) At close · Jul 20

Market Cap

$546.47M

194.47M

Daily short-sale volume published by FINRA from its trade-reporting facilities. It measures how many shares were sold short each day as a share of total volume — a daily flow, not the total outstanding short position.

1M 3M 6M 1Y 5Y All

Short Volume

Date	Short Volume	Short Exempt	Total Volume	Short %
2026-07-20	951,440	7,029	1,514,035	62.8%
2026-07-17	657,571	2,207	1,339,634	49.1%
2026-07-16	720,567	57	1,432,872	50.3%
2026-07-15	569,360	883	1,171,584	48.6%
2026-07-14	762,096	2,619	1,489,181	51.2%
2026-07-13	710,634	419	1,010,161	70.3%
2026-07-10	1,054,164	5,345	1,701,358	62.0%
2026-07-09	693,356	1,226	1,262,310	54.9%
2026-07-08	658,736	470	1,396,005	47.2%
2026-07-07	1,124,746	202	1,923,174	58.5%
2026-07-06	1,144,971	930	1,915,731	59.8%
2026-07-02	1,018,878	4,113	1,965,981	51.8%
2026-07-01	2,412,508	619	4,258,364	56.7%
2026-06-30	910,985	50	2,036,724	44.7%
2026-06-29	1,031,120	12,877	1,671,001	61.7%
2026-06-26	1,078,126	2,893	1,887,603	57.1%
2026-06-25	722,111	780	1,367,414	52.8%
2026-06-24	648,315	534	1,708,056	38.0%
2026-06-23	811,051	1,235	1,866,897	43.4%
2026-06-22	1,053,232	12,027	2,854,790	36.9%
2026-06-18	1,100,821	3,367	1,793,109	61.4%
2026-06-17	627,522	6,100	1,634,223	38.4%
2026-06-16	550,303	0	1,491,390	36.9%
2026-06-15	773,972	16,582	1,721,888	44.9%
2026-06-12	489,336	0	1,026,471	47.7%
2026-06-11	641,757	25,804	1,571,302	40.8%
2026-06-10	575,603	911	1,276,369	45.1%
2026-06-09	648,927	375	1,882,317	34.5%
2026-06-08	596,961	0	1,240,215	48.1%
2026-06-05	692,198	3,140	1,701,717	40.7%
2026-06-04	745,565	8,938	1,355,727	55.0%
2026-06-03	951,954	0	1,629,206	58.4%
2026-06-02	773,530	5,375	1,585,878	48.8%
2026-06-01	510,442	3	1,346,049	37.9%
2026-05-29	408,340	905	893,190	45.7%
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%

Showing 1–50 of 62 days

Key facts CIK 1326190 CUSIP 02155H200 13F (30d) 15 filings 15 filers Visit website Investor relations