Federal Data Hub › SEC Fails-to-Deliver · JSON
Fails-to-deliver · CUSIP 12529R107
Over the rolling 12-month window, securities of C4 THERAPEUTICS INC failed to deliver in the NSCC's Continuous Net Settlement system on 30 settlement days, totaling 435,912 fail shares and peaking at 213,135 shares on 2025-10-06. Persistent or spiking fails-to-deliver can signal delivery stress, naked short selling, or operational settlement problems.
| Settlement date | Fail shares | Price |
|---|---|---|
| 2026-09-23 | 5,501 | $3.31 |
| 2026-09-21 | 32,532 | $3.39 |
| 2026-09-09 | 110 | $3.55 |
| 2026-09-08 | 6,646 | $3.76 |
| 2026-08-31 | 3,894 | $3.85 |
| 2026-08-27 | 81 | $4.24 |
| 2026-08-25 | 26 | $4.10 |
| 2026-08-11 | 16 | $3.62 |
| 2026-08-10 | 1,955 | $3.73 |
| 2026-08-07 | 1,976 | $3.64 |
| 2026-08-06 | 5,736 | $3.62 |
| 2026-08-04 | 1,204 | $3.50 |
| 2026-08-03 | 12,660 | $3.48 |
| 2026-07-17 | 4,357 | $3.58 |
| 2026-07-10 | 236 | $4.29 |
| 2026-06-29 | 54 | $4.26 |
| 2026-06-18 | 8,176 | $3.92 |
| 2026-06-15 | 14 | $3.90 |
| 2026-06-12 | 28,293 | $3.87 |
| 2026-06-10 | 1,002 | $3.58 |
| 2026-06-04 | 1,064 | $3.96 |
| 2026-06-03 | 81 | $4.34 |
| 2026-05-18 | 890 | $3.56 |
| 2026-05-04 | 2,900 | $2.92 |
| 2026-04-20 | 7,449 | $2.92 |
| 2026-04-13 | 2,201 | $2.54 |
| 2026-03-12 | 353 | $2.99 |
| 2026-01-20 | 178 | $2.23 |
| 2026-01-16 | 2,890 | $2.22 |
| 2025-12-16 | 23,625 | $2.43 |
| 2025-11-03 | 89 | $2.61 |
| 2025-10-30 | 710 | $2.51 |
| 2025-10-27 | 4,557 | $2.45 |
| 2025-10-20 | 1,458 | $2.37 |
| 2025-10-14 | 28,703 | $2.11 |
| 2025-10-06 | 213,135 | $2.27 |
| 2025-09-17 | 1,000 | $3.41 |
| 2025-09-16 | 225 | $3.57 |
| 2025-08-05 | 848 | $2.10 |
| 2025-07-23 | 361 | $2.22 |
| 2025-07-15 | 21,000 | $2.38 |
| 2025-07-07 | 30,128 | $1.48 |
| 2025-07-03 | 1,074 | $1.52 |
| 2025-07-01 | 27,828 | $1.43 |
| 2025-06-30 | 29,182 | $1.40 |
| 2025-06-25 | 536 | $1.56 |
| 2025-06-23 | 6,197 | $1.42 |
| 2025-06-16 | 3,440 | $1.68 |
| 2025-06-12 | 3,828 | $1.52 |
| 2025-06-09 | 823 | $1.73 |
| 2025-06-06 | 17,080 | $1.47 |
| 2025-06-04 | 3,224 | $1.48 |
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 12529R107 links to this security's other federal filings across the hub.
Source: SEC Fails-to-Deliver Data. License: CC0 1.0.