Federal Data Hub › SEC Fails-to-Deliver · JSON
Fails-to-deliver · CUSIP 01749D105
Over the rolling 12-month window, securities of ALLEGRO MICROSYSTEMS INC DEL C failed to deliver in the NSCC's Continuous Net Settlement system on 82 settlement days, totaling 1,001,379 fail shares and peaking at 212,209 shares on 2026-01-21. Persistent or spiking fails-to-deliver can signal delivery stress, naked short selling, or operational settlement problems.
| Settlement date | Fail shares | Price |
|---|---|---|
| 2026-09-25 | 165,575 | $35.13 |
| 2026-09-22 | 89,747 | $35.50 |
| 2026-09-21 | 6 | $34.10 |
| 2026-09-17 | 13 | $33.02 |
| 2026-09-14 | 7,097 | $36.31 |
| 2026-09-03 | 102 | $35.47 |
| 2026-09-02 | 21,600 | $35.47 |
| 2026-08-28 | 1,919 | $37.59 |
| 2026-08-27 | 59 | $36.89 |
| 2026-08-25 | 37 | $35.63 |
| 2026-08-24 | 4,298 | $37.16 |
| 2026-08-19 | 167,420 | $39.39 |
| 2026-08-18 | 101 | $44.25 |
| 2026-08-17 | 2,103 | $44.39 |
| 2026-08-12 | 10,252 | $42.52 |
| 2026-08-11 | 133 | $42.46 |
| 2026-08-06 | 5,926 | $41.80 |
| 2026-07-30 | 223 | $42.21 |
| 2026-07-29 | 190 | $44.52 |
| 2026-07-07 | 383,561 | $56.56 |
| 2026-06-30 | 375,086 | $66.37 |
| 2026-06-29 | 8,704,443 | $57.89 |
| 2026-06-25 | 385 | $55.42 |
| 2026-06-24 | 265 | $55.52 |
| 2026-06-23 | 8,960 | $61.58 |
| 2026-06-22 | 5,802 | $59.00 |
| 2026-06-18 | 57,066 | $53.98 |
| 2026-06-15 | 9,144 | $50.41 |
| 2026-06-11 | 32,997 | $44.54 |
| 2026-06-10 | 265,568 | $46.63 |
| 2026-06-09 | 83,480 | $48.19 |
| 2026-06-08 | 1,209 | $46.39 |
| 2026-06-05 | 522 | $53.62 |
| 2026-06-03 | 675 | $50.33 |
| 2026-06-01 | 36,018 | $47.87 |
| 2026-05-27 | 8,486 | $50.76 |
| 2026-05-20 | 5,207 | $41.65 |
| 2026-05-19 | 1,671 | $41.35 |
| 2026-05-18 | 841 | $43.10 |
| 2026-05-13 | 270 | $45.87 |
| 2026-05-12 | 6 | $48.39 |
| 2026-05-08 | 962 | $47.93 |
| 2026-05-04 | 42,803 | $48.98 |
| 2026-05-01 | 39,395 | $48.50 |
| 2026-04-30 | 16,917 | $44.07 |
| 2026-04-29 | 26,421 | $41.12 |
| 2026-04-28 | 63,325 | $43.47 |
| 2026-04-22 | 6 | $41.28 |
| 2026-04-21 | 1,803 | $40.65 |
| 2026-04-20 | 1,346 | $40.00 |
| 2026-04-14 | 159 | $38.04 |
| 2026-04-06 | 68,046 | $32.60 |
| 2026-04-01 | 1,655 | $31.53 |
| 2026-03-26 | 57,232 | $32.63 |
| 2026-03-24 | 15,508 | $31.74 |
| 2026-03-23 | 25 | $29.95 |
| 2026-03-18 | 28,428 | $32.06 |
| 2026-03-17 | 29,498 | $31.38 |
| 2026-03-11 | 14,820 | $33.17 |
| 2026-03-05 | 18,437 | $34.07 |
| 2026-02-25 | 2,174 | $39.04 |
| 2026-02-19 | 35 | $38.59 |
| 2026-02-18 | 2,840 | $41.69 |
| 2026-02-12 | 1,633 | $42.81 |
| 2026-02-06 | 19,808 | $38.62 |
| 2026-02-05 | 30,848 | $38.20 |
| 2026-01-30 | 2,924 | $37.98 |
| 2026-01-23 | 61 | $33.81 |
| 2026-01-21 | 212,209 | $32.97 |
| 2026-01-20 | 15,087 | $33.35 |
| 2026-01-16 | 3,283 | $32.69 |
| 2026-01-12 | 48 | $31.29 |
| 2026-01-09 | 1,453 | $31.30 |
| 2025-12-24 | 9,794 | $27.45 |
| 2025-12-23 | 3,323 | $26.75 |
| 2025-12-22 | 10,012 | $26.70 |
| 2025-12-05 | 276 | $28.82 |
| 2025-12-01 | 1 | $26.69 |
| 2025-11-26 | 45 | $25.74 |
| 2025-11-19 | 243 | $23.21 |
| 2025-11-18 | 33,300 | $23.60 |
| 2025-11-17 | 1,099 | $24.71 |
| 2025-11-14 | 12,391 | $25.29 |
| 2025-11-03 | 100 | $29.92 |
| 2025-10-30 | 4 | $30.74 |
| 2025-10-27 | 356 | $30.91 |
| 2025-10-21 | 22,057 | $30.49 |
| 2025-10-17 | 34 | $29.33 |
| 2025-10-14 | 3,046 | $27.41 |
| 2025-10-01 | 1,111 | $29.20 |
Showing 90 most recent of 117.
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 01749D105 links to this security's other federal filings across the hub.
Source: SEC Fails-to-Deliver Data. License: CC0 1.0.