Who Owns Acumen Pharmaceuticals, Inc. (ABOS)?Hedge Fund & Institutional Holders
Institutional Holders
50
as of Q4 2025
Total Institutional Value
$7.21000040000004e+142T
% of Float Held
—
QoQ Change in Holders
+13 / -3
Price History
ABOS — Biggest New Institutional Buyers This Quarter
| Fund | Action | Shares Added | Value Added |
|---|---|---|---|
| PFG Investments, LLC | New Position | +19K | +$40.0M |
| CLUNE & ASSOCIATES, LTD. | New Position | +17K | +$34.0M |
| NINE MASTS CAPITAL Ltd | New Position | +11K | +$22.0M |
| TFC Financial Management, Inc. | New Position | +3K | +$5.0M |
| NISA INVESTMENT ADVISORS, LLC | New Position | +1K | +$2.0M |
| SG Americas Securities, LLC | New Position | +401K | +$846K |
| VANGUARD GROUP INC | Increased | +2K | +$178K |
| Independent Advisor Alliance | New Position | +19K | +$40K |
| Pinnacle Wealth Management Advisory Group, LLC | New Position | +18K | +$38K |
| Virtu Financial LLC | New Position | +11K | +$23K |
| OMERS ADMINISTRATION Corp | New Position | +22K | +$0 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | +11K | +$0 |
| MARSHALL WACE, LLP | New Position | +21K | +$0 |
| Tower Research Capital LLC (TRC) | New Position | +4K | +$0 |
| CWM, LLC | New Position | +147 | +$0 |
ABOS — Institutions Reducing or Closing Positions
| Fund | Action | Shares Sold | Value Sold |
|---|---|---|---|
| Hudson Bay Capital Management LP | Decreased | -4 | -$1.2B |
| RENAISSANCE TECHNOLOGIES LLC | Decreased | -161K | -$999.1M |
| CITADEL ADVISORS LLC | Decreased | -149K | -$844.9M |
| TWO SIGMA ADVISERS, LP | Decreased | -2K | -$724.4M |
| Ikarian Capital, LLC | Decreased | -11K | -$453.9M |
| JANE STREET GROUP, LLC | Decreased | -65K | -$354.4M |
| TWO SIGMA INVESTMENTS, LP | Decreased | -56K | -$341.1M |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | Decreased | -20K | -$325.2M |
| GOLDMAN SACHS GROUP INC | Decreased | -29K | -$251.6M |
| BOOTHBAY FUND MANAGEMENT, LLC | Decreased | -11K | -$87.3M |
| Cubist Systematic Strategies, LLC | Closed Position | -24K | -$40.9M |
| MILLENNIUM MANAGEMENT LLC | Decreased | -18K | -$28.9M |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Closed Position | -16K | -$27.4M |
| Integrated Wealth Concepts LLC | Closed Position | -10K | -$17.4M |
| OSAIC HOLDINGS, INC. | Decreased | -400 | -$10.4M |
Top Institutional Holders(Q4 2025)
ABOS Institutional Ownership History
| Quarter | Holders | Total Value | Change |
|---|---|---|---|
| Q4 2025 | 71 | $21.5B | +12 |
| Q3 2025 | 59 | $47.7B | +0 |
| Q2 2025 | 59 | $32.7B | -21 |
| Q1 2025 | 80 | $35.2B | +0 |
| Q4 2024 | 80 | $53.4B | +14 |
| Q3 2024 | 66 | $1.8T | -10 |
| Q2 2024 | 76 | $1.7T | +2 |
| Q1 2024 | 74 | $2.8T | — |
Similar Stocks by Institutional Ownership
As of Q4 2025, 50 institutional investors hold ABOS (Acumen Pharmaceuticals, Inc.). The largest holder is Sands Capital Alternatives, LLC with $7.2B in shares. This quarter, 13 institutions opened new positions and 3 closed their positions.
Frequently Asked Questions
How many hedge funds own ABOS?
As of Q4 2025, 50 institutional investors report holding ABOS (Acumen Pharmaceuticals, Inc.) in their 13F filings.
Who is the largest institutional holder of ABOS?
The largest institutional holder of ABOS is Sands Capital Alternatives, LLC with $7.2B in shares.
Is institutional ownership of ABOS increasing or decreasing?
This quarter, 13 institutions opened new positions in ABOS and 3 closed their positions.