Institutional Ownership Acumen Pharmaceuticals, Inc. (ABOS)
This table provides information about the institutional ownership of Acumen Pharmaceuticals, Inc. (ABOS). We have compiled data on the 72 institutions that hold shares in the stock, with a total of 38.8 Million shares, which have been reported (via 13F filing form) to have a value of $48.8 Million.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Ra Capital Management, L.P.
Boston, MA |
Aug 14, 2025 Q2 2025 |
14,932,063
shares
|
$18.8 Million
0.38% of portfolio
|
Q2 2024
New holding
|
|
|
Sands Capital Ventures, LLC
Arlington, VA |
Aug 13, 2025 Q2 2025 |
3,417,075
shares
|
$4.31 Million
1.28% of portfolio
|
Q3 2021
New holding
|
|
|
Franklin Resources Inc
San Mateo, CA |
Aug 12, 2025 Q2 2025 |
3,077,039
shares
|
$3.88 Million
0.0% of portfolio
|
Q2 2025
Reduced 2.07%
|
|
|
Black Rock Inc.
New York, NY |
Aug 13, 2024 Q2 2024 |
2,158,661
shares
|
$2.72 Million
0.0% of portfolio
|
Q2 2024
Added 1037.95%
|
|
|
Israel Englander
Millennium Management LLC | New York, Ny
|
Aug 14, 2025 Q2 2025 |
1,950,120
shares
|
$2.46 Million
0.0% of portfolio
|
Q2 2025
Added 71.78%
|
|
|
Vanguard Group Inc
Valley Forge, PA |
Aug 11, 2025 Q2 2025 |
1,689,351
shares
|
$2.13 Million
0.0% of portfolio
|
Q2 2025
Reduced 12.78%
|
|
|
Knollwood Investment Advisory, LLC
Hunt Valley, MD |
Aug 13, 2025 Q2 2025 |
1,628,510
shares
|
$2.05 Million
0.18% of portfolio
|
Q3 2023
Reduced 2.98%
|
|
|
Pathstone Holdings, LLC
Englewood, NJ |
Aug 12, 2025 Q2 2025 |
1,058,531
shares
|
$1.33 Million
0.0% of portfolio
|
Q2 2025
Reduced 2.58%
|
|
|
Alyeska Investment Group, L.P.
Chicago, IL |
Aug 14, 2025 Q2 2025 |
939,603
shares
|
$1.18 Million
0.0% of portfolio
|
Q1 2024
Added 28.15%
|
|
|
Adar1 Capital Management, LLC
Austin, TX |
Aug 14, 2025 Q2 2025 |
916,183
shares
|
$1.15 Million
0.16% of portfolio
|
Q2 2025
Added 526.74%
|
|
|
Laurion Capital Management LP
New York, NY |
Aug 14, 2025 Q2 2025 |
867,046
shares
|
$1.09 Million
0.02% of portfolio
|
Q3 2024
Reduced 26.42%
|
|
|
Jpmorgan Chase & CO
New York, NY |
May 12, 2025 Q1 2025 |
832,267
shares
|
$1.05 Million
0.0% of portfolio
|
Q1 2025
Reduced 11.26%
|
|
|
Hudson Bay Capital Management LP
Greenwich, CT |
Aug 14, 2025 Q2 2025 |
825,004
shares
|
$1.04 Million
0.0% of portfolio
|
Q2 2025
Added 7.14%
|
|
|
Pathstone Family Office, LLC
Englewood, NJ |
Nov 08, 2023 Q3 2023 |
478,790
shares
|
$603,275
0.01% of portfolio
|
Q2 2023
Reduced 2.45%
|
|
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
Aug 14, 2025 Q2 2025 |
426,300
shares
|
$537,138
0.0% of portfolio
|
Q2 2025
Reduced 8.07%
|
|
|
Geode Capital Management, LLC
Boston, MA |
Aug 08, 2025 Q2 2025 |
396,626
shares
|
$499,748
0.0% of portfolio
|
Q2 2025
Reduced 53.98%
|
|
|
Goldman Sachs Group Inc
New York, NY |
Aug 14, 2025 Q2 2025 |
334,683
shares
|
$421,700
0.0% of portfolio
|
Q2 2025
Added 70.58%
|
|
|
Ikarian Capital, LLC
Dallas, TX |
Aug 14, 2025 Q2 2025 |
265,769
shares
|
$334,868
0.09% of portfolio
|
Q4 2024
Reduced 0.25%
|
|
|
Y Intercept (Hong Kong) LTD
|
Aug 01, 2025 Q2 2025 |
250,848
shares
|
$316,068
0.01% of portfolio
|
Q2 2025
New holding
|
|
|
Jim Simons
Renaissance Technologies LLC | New York, Ny
|
Aug 13, 2025 Q2 2025 |
246,588
shares
|
$310,700
0.0% of portfolio
|
Q2 2025
Reduced 3.94%
|
|
|
Two Sigma Investments, LP
New York, NY |
Aug 14, 2025 Q2 2025 |
200,785
shares
|
$252,989
0.0% of portfolio
|
Q2 2025
Reduced 13.56%
|
|
|
Jane Street Group, LLC
New York, NY |
Aug 14, 2025 Q2 2025 |
175,670
shares
|
$221,344
0.0% of portfolio
|
Q2 2025
Added 1525.97%
|
|
|
Morgan Stanley
New York, NY |
Aug 15, 2025 Q2 2025 |
153,748
shares
|
$193,722
0.0% of portfolio
|
Q2 2025
Added 0.73%
|
|
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
Aug 14, 2025 Q2 2025 |
152,338
shares
|
$191,945
0.0% of portfolio
|
Q2 2025
Added 37.27%
|
|
|
Bank Of America Corp
Charlotte, NC |
Aug 14, 2025 Q2 2025 |
147,009
shares
|
$185,231
0.0% of portfolio
|
Q2 2025
Reduced 7.5%
|