Federal Data Hub › SEC Fails-to-Deliver · JSON
Fails-to-deliver · CUSIP 98943L107
Over the rolling 12-month window, securities of ZENTALIS PHARMACEUTICALS INC C failed to deliver in the NSCC's Continuous Net Settlement system on 26 settlement days, totaling 346,421 fail shares and peaking at 58,121 shares on 2025-06-17. Persistent or spiking fails-to-deliver can signal delivery stress, naked short selling, or operational settlement problems.
| Settlement date | Fail shares | Price |
|---|---|---|
| 2026-09-04 | 1,398 | $4.11 |
| 2026-08-25 | 5 | $3.76 |
| 2026-08-04 | 31,379 | $4.65 |
| 2026-08-03 | 6 | $4.74 |
| 2026-07-27 | 2 | $4.33 |
| 2026-07-20 | 324 | $5.11 |
| 2026-07-02 | 67 | $4.36 |
| 2026-06-29 | 362,052 | $4.04 |
| 2026-05-26 | 100 | $4.06 |
| 2026-05-19 | 5 | $3.63 |
| 2026-05-13 | 4,305 | $4.28 |
| 2026-04-20 | 6,034 | $4.64 |
| 2026-04-13 | 33,266 | $6.61 |
| 2026-03-31 | 4,807 | $2.14 |
| 2026-03-20 | 55,997 | $2.56 |
| 2026-03-11 | 1,000 | $3.06 |
| 2026-03-03 | 158 | $2.50 |
| 2026-02-17 | 2,978 | $2.39 |
| 2026-02-05 | 8,452 | $2.55 |
| 2026-01-20 | 42,800 | $2.96 |
| 2025-11-03 | 49,995 | $1.50 |
| 2025-10-03 | 741 | $1.66 |
| 2025-09-24 | 6,609 | $1.50 |
| 2025-08-06 | 390 | $1.41 |
| 2025-07-30 | 12,729 | $1.35 |
| 2025-07-15 | 22 | $1.36 |
| 2025-07-10 | 1,911 | $1.31 |
| 2025-07-08 | 26,064 | $1.19 |
| 2025-07-01 | 42 | $1.16 |
| 2025-06-26 | 24,103 | $1.31 |
| 2025-06-17 | 58,121 | $1.51 |
| 2025-06-13 | 3,632 | $1.46 |
| 2025-06-06 | 1,080 | $1.47 |
| 2025-06-05 | 1,080 | $1.50 |
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 98943L107 links to this security's other federal filings across the hub.
Source: SEC Fails-to-Deliver Data. License: CC0 1.0.