CIK 0000748592 路 Cambridge, MA 路 SIC 2834 路 All EDGAR filings
5 verified red-flag event(s) since 2025-04-01. Red flag score: 33 how it's calculated
Computed only from the verified red flags below: each flag earns points for its severity, loses half its weight every 180 days, and companies with several different flag types in the past year get a bonus. Total points 20.0 → score = 100 × (1 − e−points/50) = 33. Full method
| Flag | Filed | Severity | Points | Age | Decay | Counts |
|---|---|---|---|---|---|---|
| Going-concern doubt | 2026-03-13 | 4/5 | 22.0 | 218 d | ×0.43 | 9.5 |
| Going-concern doubt | 2025-11-07 | 3/5 | 14.0 | 344 d | ×0.27 | 3.7 |
| Going-concern doubt | 2025-08-13 | 3/5 | 14.0 | 430 d | ×0.19 | 2.7 |
| Auditor change | 2025-07-07 | 3/5 | 14.0 | 467 d | ×0.17 | 2.3 |
| Going-concern doubt | 2025-05-07 | 3/5 | 14.0 | 528 d | ×0.13 | 1.8 |
The red flag score summarizes how many, how serious and how recent a company's verified SEC red-flag filings are. It describes filing events only. It is not a fraud score, credit rating or prediction, and not investment advice.
| Flag | Date | Cap at flag | 30d | 90d | 180d |
|---|---|---|---|---|---|
| Going-concern doubt | 2026-03-13 | $6.4M | -36.4% | -15.1% | -48.0% |
| Going-concern doubt | 2025-11-07 | $13.7M | -23.1% | -59.8% | -85.7% |
| Going-concern doubt | 2025-08-13 | $13.4M | -23.7% | -6.5% | -81.7% |
| Auditor change | 2025-07-07 | $15.1M | -16.0% | -32.0% | -39.5% |
| Going-concern doubt | 2025-05-07 | $16.1M | -13.5% | -45.8% | -46.5% |
Stock return after each flag; pending = window not yet elapsed; n/a = no price data.
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