secwatch.observer — SEC 8-K summary
======================================

Issuer:     Acumen Pharmaceuticals, Inc. (ABOS)
CIK:        0001576885
Form:       8-K
Filed at:   2026-09-16T13:26:38+00:00
Accession:  0001628280-26-062137
Event type: other_material
Sentiment:  neutral
Materiality: 0.30
Item codes: 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Acumen hosts Sept 16 Investor Day; no substantive data in 8-K exhibit
---------------------------------------------------------------------

- Investor Day held Sept 16, 2026 beginning 10:00 a.m. ET; live webcast hosted by Acumen Pharmaceuticals.
- Slide deck posted on IR website after event; Exhibit 99.1 contains title slide only — no results or guidance.
- No financial, clinical, or guidance figures disclosed anywhere in this filing; presentation content not included.
- Signed by CFO/Chief Business Officer Matthew Zuga; common stock listed on Nasdaq under ABOS.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1576885/000162828026062137/0001628280-26-062137-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1576885/000162828026062137/abos-20260916.htm
  HTML page:      https://secwatch.observer/filing/0001628280-26-062137

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer