Home / Going-concern warnings / Acumen Pharmaceuticals, Inc.
Filed 2026-08-12 路 Form 10-Q 路 Accession 0001628280-26-056199 micro
Price before filing: $2.47 (2026-08-11 close, split/dividend-adjusted)
Market cap at flag: $181.3M (2026-08-12) 路 Latest: $122.1M (2026-10-16)
| Window | ABOS | SPY | vs SPY | |
|---|---|---|---|---|
| 30 days | +18.2% | -0.8% | +19.0% | 2026-09-11 |
| 90 days | pending | pending | until 2026-11-10 | |
| 180 days | pending | pending | until 2027-02-08 | |
| 1 year | pending | pending | until 2027-08-12 |
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: 2 insiders sold $90K (4 sales)
30 days after: none reported.
| Date | Insider | Type | Shares | Price | Value | 10b5-1 plan | Source |
|---|---|---|---|---|---|---|---|
| 2026-06-09 | Fountain Nathan B Director | Sale | 6,400 | $2.23 | $14K | no | Form 4 |
| 2026-06-15 | Porter Derrell Director | Sale | 6,460 | $2.35 | $15K | no | Form 4 |
| 2026-06-16 | Porter Derrell Director | Sale | 12,800 | $2.33 | $30K | no | Form 4 |
| 2026-06-17 | Porter Derrell Director | Sale | 13,040 | $2.33 | $30K | no | Form 4 |
| 2026-08-12: red flag filed | |||||||
Open-market purchases and sales (Form 4 codes P and S) by officers, directors and 10% owners, by transaction date, from 2026-05-14 to 2026-09-11. 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.
"Accordingly, the Company has concluded that substantial doubt exists 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.
Source: management disclosure in Form 10-Q (period 2026-06-30)
Why this score: quarterly (unaudited) disclosure
Read the original filing on SEC.gov →
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