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Acumen Pharmaceuticals ABOS · USD

Health Care · US listing · 🇺🇸 United States

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0.24

+6.04%

Close of 9 Nov 2026, in USD

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Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
RA Capital Management, LP14.9m24.65%—30 Jun 2025
Sands Capital Ventures LLC3.4m5.64%—30 Jun 2025
Franklin Advisers, Inc.3.1m5.04%−63.1k30 Jun 2025
Fidelity Management & Research Company LLC2m3.35%+4.1k30 Jun 2025
Millennium Management LLC2m3.22%+814.9k30 Jun 2025
The Vanguard Group, Inc.1.7m2.79%−247.6k30 Jun 2025
Knollwood Investment Advisory, LLC1.6m2.69%—30 Jun 2025
Pathstone1.1m1.75%−28k30 Jun 2025
Alyeska Investment Group, L.P.939.6k1.55%—30 Jun 2025
Adar1 Capital Management LLC916.2k1.51%+770k30 Jun 2025
Laurion Capital Management LP867k1.43%—30 Jun 2025
Hudson Bay Capital Management LP825k1.36%+55k30 Jun 2025
Two Sigma Investments, LP647.2k1.07%−60.7k30 Jun 2025
SG Americas Securities, L.L.C.403.9k0.67%+403.9k30 Sept 2025
Geode Capital Management, L.L.C.396.6k0.65%−465.3k30 Jun 2025

Short interest

Shares sold short, 15 Oct 2026. US exchange data.

3.1m

+0.4% on the period before. 5.4 days to cover.

Short volume

Share of the day's trading sold short, 4 Nov 2026

45.6%

Last 60 trading days.

Failed deliveries

Shares not delivered on settlement, from the SEC

  • 30 Sept 202613,347 shares
  • 28 Sept 20266,016 shares
  • 22 Sept 20263,538 shares
  • 8 Sept 202652 shares
  • 31 Aug 2026150 shares

Sources and methodology

Data on this tab
Our data supplier
Chart on the Overview
TradingView

Nothing here is investment advice. Prices can be delayed or wrong, so check with the exchange before relying on them. Data for this page. How we cover markets.