Federal Data Hub › SEC Fails-to-Deliver · JSON
Fails-to-deliver · CUSIP 46333X108
Over the rolling 12-month window, securities of IRONWOOD PHARMACEUTICALS INC C failed to deliver in the NSCC's Continuous Net Settlement system on 45 settlement days, totaling 524,870 fail shares and peaking at 137,636 shares on 2025-06-03. Persistent or spiking fails-to-deliver can signal delivery stress, naked short selling, or operational settlement problems.
| Settlement date | Fail shares | Price |
|---|---|---|
| 2026-10-05 | 1,050 | $3.64 |
| 2026-09-21 | 169,040 | $4.36 |
| 2026-09-18 | 3,363 | $4.23 |
| 2026-09-04 | 211 | $4.29 |
| 2026-08-24 | 97 | $4.29 |
| 2026-08-13 | 1 | $4.32 |
| 2026-08-05 | 15,792 | $4.31 |
| 2026-08-04 | 2,400 | $4.42 |
| 2026-07-17 | 1 | $3.87 |
| 2026-07-14 | 5 | $4.21 |
| 2026-07-06 | 4,000 | $4.33 |
| 2026-07-01 | 898 | $4.21 |
| 2026-06-30 | 50,143 | $4.30 |
| 2026-06-29 | 185 | $4.13 |
| 2026-06-26 | 178 | $3.84 |
| 2026-06-22 | 788 | $3.54 |
| 2026-06-18 | 208 | $3.52 |
| 2026-06-15 | 888 | $3.65 |
| 2026-06-11 | 8,172 | $3.35 |
| 2026-06-10 | 911 | $3.22 |
| 2026-06-08 | 1,458 | $3.31 |
| 2026-06-01 | 33 | $3.57 |
| 2026-05-28 | 88 | $3.71 |
| 2026-05-27 | 88 | $3.90 |
| 2026-05-22 | 52,100 | $3.85 |
| 2026-05-21 | 181 | $3.92 |
| 2026-05-19 | 2,543 | $3.50 |
| 2026-05-18 | 3 | $3.58 |
| 2026-04-22 | 74,314 | $4.07 |
| 2026-04-21 | 1,171 | $4.42 |
| 2026-04-07 | 4,292 | $3.53 |
| 2026-04-01 | 2,057 | $3.51 |
| 2026-03-11 | 12,573 | $3.70 |
| 2026-03-02 | 3,176 | $3.42 |
| 2026-02-26 | 1,083 | $3.36 |
| 2026-02-19 | 71 | $4.78 |
| 2026-02-02 | 923 | $4.89 |
| 2026-01-28 | 436 | $5.14 |
| 2026-01-21 | 249 | $4.58 |
| 2026-01-16 | 380 | $4.52 |
| 2026-01-15 | 3,835 | $4.54 |
| 2025-11-20 | 80 | $3.18 |
| 2025-11-17 | 33,951 | $3.14 |
| 2025-11-12 | 445 | $2.89 |
| 2025-11-06 | 44 | $2.06 |
| 2025-11-03 | 343 | $1.92 |
| 2025-10-14 | 23,459 | $1.48 |
| 2025-09-29 | 8,776 | $1.39 |
| 2025-09-12 | 5,000 | $1.24 |
| 2025-09-03 | 4,795 | $1.31 |
| 2025-08-08 | 220 | $0.88 |
| 2025-07-30 | 3,205 | $0.89 |
| 2025-07-24 | 5,579 | $0.87 |
| 2025-07-22 | 1,331 | $0.76 |
| 2025-07-18 | 4,016 | $0.79 |
| 2025-07-11 | 37,849 | $0.78 |
| 2025-07-10 | 6,599 | $0.80 |
| 2025-07-09 | 7,648 | $0.75 |
| 2025-07-08 | 70 | $0.71 |
| 2025-06-26 | 36,613 | $0.75 |
| 2025-06-20 | 6,317 | $0.70 |
| 2025-06-18 | 7 | $0.63 |
| 2025-06-13 | 24,345 | $0.67 |
| 2025-06-12 | 5,022 | $0.72 |
| 2025-06-11 | 1,543 | $0.80 |
| 2025-06-05 | 10,414 | $0.60 |
| 2025-06-03 | 137,636 | $0.62 |
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 46333X108 links to this security's other federal filings across the hub.
Source: SEC Fails-to-Deliver Data. License: CC0 1.0.