Federal Data Hub › SEC Fails-to-Deliver · JSON
Fails-to-deliver · CUSIP 02155H200
Over the rolling 12-month window, securities of ALTIMMUNE INC COM NEW failed to deliver in the NSCC's Continuous Net Settlement system on 107 settlement days, totaling 7,561,911 fail shares and peaking at 3,081,197 shares on 2025-06-27. Persistent or spiking fails-to-deliver can signal delivery stress, naked short selling, or operational settlement problems.
| Settlement date | Fail shares | Price |
|---|---|---|
| 2026-09-28 | 3,623 | $3.06 |
| 2026-09-23 | 1,957 | $3.41 |
| 2026-09-14 | 217 | $3.27 |
| 2026-09-11 | 1,152 | $3.29 |
| 2026-09-03 | 17 | $3.28 |
| 2026-08-24 | 61,991 | $3.11 |
| 2026-08-12 | 10,537 | $3.00 |
| 2026-08-06 | 6,228 | $3.03 |
| 2026-08-04 | 17,013 | $3.00 |
| 2026-08-03 | 19,165 | $2.84 |
| 2026-07-31 | 2,773 | $2.98 |
| 2026-07-16 | 4,669 | $2.98 |
| 2026-07-01 | 101 | $3.04 |
| 2026-06-30 | 930 | $2.94 |
| 2026-06-29 | 147,994 | $2.82 |
| 2026-06-24 | 1,484 | $2.91 |
| 2026-06-18 | 138 | $2.64 |
| 2026-06-05 | 24,917 | $2.92 |
| 2026-06-02 | 3,569 | $3.01 |
| 2026-05-26 | 959 | $2.90 |
| 2026-05-22 | 811 | $2.93 |
| 2026-05-18 | 114 | $2.85 |
| 2026-05-08 | 243 | $3.04 |
| 2026-04-30 | 1,682 | $2.63 |
| 2026-04-20 | 5,246 | $3.50 |
| 2026-04-15 | 7,586 | $3.29 |
| 2026-04-08 | 1,961 | $3.38 |
| 2026-04-06 | 3,034 | $3.34 |
| 2026-03-30 | 2,415 | $3.02 |
| 2026-03-17 | 2,000 | $3.62 |
| 2026-03-10 | 7,965 | $3.88 |
| 2026-02-25 | 1,053 | $4.57 |
| 2026-02-10 | 560 | $4.69 |
| 2026-02-09 | 8,482 | $4.87 |
| 2026-02-05 | 119,655 | $5.13 |
| 2026-02-04 | 8,699 | $5.47 |
| 2026-02-03 | 15,493 | $5.55 |
| 2026-02-02 | 11,552 | $5.60 |
| 2026-01-30 | 14,517 | $5.10 |
| 2026-01-28 | 3,718 | $6.18 |
| 2026-01-23 | 37,225 | $5.38 |
| 2026-01-22 | 1,417 | $4.62 |
| 2026-01-20 | 69,560 | $4.24 |
| 2026-01-15 | 1,885 | $4.18 |
| 2026-01-13 | 178 | $4.05 |
| 2026-01-12 | 11,506 | $4.02 |
| 2026-01-09 | 3,003 | $4.08 |
| 2026-01-07 | 5,725 | $3.96 |
| 2026-01-05 | 52,589 | $3.51 |
| 2026-01-02 | 1,441 | $3.61 |
| 2025-12-31 | 25,598 | $3.61 |
| 2025-12-23 | 33,425 | $4.14 |
| 2025-12-22 | 130,705 | $3.90 |
| 2025-12-19 | 2 | $5.05 |
| 2025-12-04 | 9,885 | $5.11 |
| 2025-12-03 | 123,298 | $4.76 |
| 2025-11-25 | 1,380 | $5.10 |
| 2025-11-24 | 658 | $4.81 |
| 2025-11-21 | 3,552 | $4.47 |
| 2025-11-20 | 10,239 | $4.59 |
| 2025-11-12 | 262,641 | $4.28 |
| 2025-11-07 | 3,945 | $3.94 |
| 2025-11-06 | 4,999 | $3.75 |
| 2025-10-31 | 100,715 | $4.07 |
| 2025-10-30 | 1,169 | $4.00 |
| 2025-10-27 | 441 | $3.95 |
| 2025-10-22 | 11,576 | $4.04 |
| 2025-10-17 | 6,091 | $3.89 |
| 2025-10-16 | 80 | $4.00 |
| 2025-10-14 | 79,023 | $4.00 |
| 2025-10-09 | 4,583 | $3.93 |
| 2025-10-06 | 3,210 | $3.91 |
| 2025-10-03 | 4,944 | $3.93 |
| 2025-10-02 | 5,103 | $3.87 |
| 2025-09-24 | 590 | $3.79 |
| 2025-09-22 | 32,238 | $3.78 |
| 2025-09-19 | 84,835 | $3.87 |
| 2025-09-16 | 35,600 | $3.59 |
| 2025-09-15 | 75,658 | $3.64 |
| 2025-09-11 | 20,648 | $3.67 |
| 2025-09-10 | 1,611 | $3.78 |
| 2025-09-09 | 1,779 | $3.71 |
| 2025-09-05 | 683 | $3.56 |
| 2025-08-29 | 974 | $3.71 |
| 2025-08-28 | 187 | $3.67 |
| 2025-08-27 | 10 | $3.44 |
| 2025-08-26 | 21,489 | $3.39 |
| 2025-08-22 | 77 | $3.53 |
| 2025-08-21 | 325 | $3.63 |
| 2025-08-20 | 22,654 | $3.62 |
Showing 90 most recent of 120.
A "fail-to-deliver" occurs when a party in a securities trade does not deliver the shares by the settlement date. The SEC publishes twice-monthly files of CNS fails-to-deliver by security. This page aggregates the rolling 12-month window. CUSIP 02155H200 links to this security's other federal filings across the hub.
Source: SEC Fails-to-Deliver Data. License: CC0 1.0.