Home / Going-concern warnings / Sensei Biotherapeutics, Inc.
Filed 2026-03-30 路 Form 10-K 路 Accession 0001193125-26-132014 nano
Price before filing: $27.68 (2026-03-27 close, split/dividend-adjusted)
Market cap at flag: $32.5M (2026-03-30) 路 Latest: $43.2M (2026-07-13)
| Window | SNSE | SPY | vs SPY | |
|---|---|---|---|---|
| 30 days | +2.2% | +12.2% | -10.0% | 2026-04-29 |
| 90 days | n/a | n/a | n/a | no price after 2026-06-16 |
| 180 days | n/a | n/a | n/a | no price after 2026-06-16 |
Return from the last close before the filing date to the first close on/after the window end. Pending windows have not fully elapsed. Past performance says nothing certain about the future.
90 days before the flag: 1 insider sold $66K (4 sales); 1 insider bought $572K (7 purchases)
30 days after: 1 insider sold $639K (21 sales); 1 insider bought $770K (19 purchases)
| Date | Insider | Type | Shares | Price | Value | 10b5-1 plan | Source |
|---|---|---|---|---|---|---|---|
| 2026-03-26 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 778 | $27.23 | $21K | no | Form 4 |
| 2026-03-26 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 1,327 | $27.95 | $37K | no | Form 4 |
| 2026-03-26 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 2,601 | $28.85 | $75K | no | Form 4 |
| 2026-03-26 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 1,025 | $29.98 | $31K | no | Form 4 |
| 2026-03-26 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Sale | 583 | $26.88 | $16K | no | Form 4 |
| 2026-03-26 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Sale | 1,274 | $28.69 | $37K | no | Form 4 |
| 2026-03-27 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 10,643 | $26.29 | $280K | no | Form 4 |
| 2026-03-27 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 4,384 | $27.28 | $120K | no | Form 4 |
| 2026-03-27 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 294 | $28.13 | $8K | no | Form 4 |
| 2026-03-27 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Sale | 469 | $26.77 | $13K | no | Form 4 |
| 2026-03-27 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Sale | 36 | $27.37 | $985 | no | Form 4 |
| 2026-03-30: red flag filed | |||||||
| 2026-03-30 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 2,992 | $25.08 | $75K | no | Form 4 |
| 2026-03-30 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 4,995 | $25.99 | $130K | no | Form 4 |
| 2026-03-30 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 1,176 | $26.70 | $31K | no | Form 4 |
| 2026-03-30 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 370 | $27.68 | $10K | no | Form 4 |
| 2026-03-30 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Sale | 518 | $25.85 | $13K | no | Form 4 |
| 2026-03-30 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Sale | 370 | $27.68 | $10K | no | Form 4 |
| 2026-03-31 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 616 | $24.69 | $15K | no | Form 4 |
| 2026-03-31 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 1,770 | $25.32 | $45K | no | Form 4 |
| 2026-03-31 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 1,048 | $26.73 | $28K | no | Form 4 |
| 2026-03-31 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 17 | $27.78 | $472 | no | Form 4 |
| 2026-03-31 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 186 | $30.48 | $6K | no | Form 4 |
| 2026-03-31 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 1,957 | $31.45 | $62K | no | Form 4 |
| 2026-03-31 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Purchase | 411 | $32.60 | $13K | no | Form 4 |
| 2026-03-31 | MILLENNIUM MANAGEMENT LLC (+3 joint filers) 10% owner | Sale | 191 | $24.28 | $5K | no | Form 4 |
Showing 25 of 51 transactions.
Open-market purchases and sales (Form 4 codes P and S) by officers, directors and 10% owners, by transaction date, from 2025-12-30 to 2026-04-29. Excludes option exercises, grants, gifts and tax withholding. Amended filings replace the originals; joint filings count once. Foreign private issuers do not file Form 4. Many insider sales are pre-scheduled (10b5-1 plans) and are not by themselves a sign of wrongdoing.
"After evaluating the conditions described above in the aggregate, the Company has concluded that there is substantial doubt about its ability to continue as a going concern."
Quoted from the filing. Source
The filing states that substantial doubt exists about the company's ability to continue as a going concern: it may not have enough cash to last the next 12 months. Expect dilution, debt deals or worse. An auditor's going-concern paragraph is the strongest form of this warning.
Going-concern opinion issued by: Deloitte & Touche LLP
Source: independent auditor report in Form 10-K (period 2025-12-31)
Why this score: in auditor's report
Read the original filing on SEC.gov →
Not investment advice. Automated summary; verify against the filing.
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