Federal Data Hub › SEC Fails-to-Deliver · JSON
Fails-to-deliver · CUSIP 59045L205
Over the rolling 12-month window, securities of MERSANA THERAPEUTICS INC COM N failed to deliver in the NSCC's Continuous Net Settlement system on 18 settlement days, totaling 108,980 fail shares and peaking at 58,655 shares on 2025-07-28. Persistent or spiking fails-to-deliver can signal delivery stress, naked short selling, or operational settlement problems.
| Settlement date | Fail shares | Price |
|---|---|---|
| 2026-01-07 | 300 | $29.08 |
| 2025-12-10 | 710 | $28.14 |
| 2025-11-17 | 4,340 | $27.92 |
| 2025-11-14 | 275 | $27.43 |
| 2025-11-13 | 447 | $8.87 |
| 2025-11-06 | 196 | $8.46 |
| 2025-10-31 | 15 | $9.30 |
| 2025-10-30 | 56 | $9.56 |
| 2025-10-14 | 1,004 | $9.91 |
| 2025-10-03 | 838 | $8.00 |
| 2025-09-02 | 3,635 | $7.32 |
| 2025-08-18 | 2,470 | $7.16 |
| 2025-08-12 | 2,714 | $5.97 |
| 2025-08-01 | 1,980 | $6.85 |
| 2025-07-31 | 267 | $6.75 |
| 2025-07-30 | 14,141 | $6.95 |
| 2025-07-29 | 16,937 | $6.83 |
| 2025-07-28 | 58,655 | $7.70 |
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 59045L205 links to this security's other federal filings across the hub.
Source: SEC Fails-to-Deliver Data. License: CC0 1.0.