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Acumen Pharmaceuticals Inc

ABOS
2.220USD
+0.070+3.26%
Market hours ETQuotes delayed by 15 min
134.47MMarket Cap
LossP/E TTM

Acumen Pharmaceuticals Inc

2.220
+0.070+3.26%

More Details of Acumen Pharmaceuticals Inc Company

Acumen Pharmaceuticals, Inc. is a clinical-stage biopharmaceutical company. The Company is engaged in developing a disease-modifying approach to target underlying cause of Alzheimer's disease (AD). The Company is focused on advancing a targeted immunotherapy drug candidate, sabirnetug (ACU193), in its Phase II ALTITUDE-AD clinical trial following Phase I results in early AD patients (patients with mild cognitive impairment or mild dementia due to AD). Sabirnetug is a recombinant humanized immunoglobulin gamma 2 (IgG2), monoclonal antibody (mAb) that selectively targets the anti-amyloid-beta oligomer, has demonstrated functional and protective effects in in-vitro assays, and has demonstrated in-vivo safety and pharmacologic activity in multiple animal species including transgenic mouse models for AD. The Company is developing sabirnetug for IV administration once every four weeks (Q4W) for the treatment of early AD, and it has developing sabirnetug for subcutaneous administration.

Acumen Pharmaceuticals Inc Info

Ticker SymbolABOS
Company nameAcumen Pharmaceuticals Inc
IPO dateJul 01, 2021
CEOO'Connell (Daniel J)
Number of employees61
Security typeOrdinary Share
Fiscal year-endJul 01
Address1210-1220 Washington Street
CityNEWTON
Stock exchangeNASDAQ OMX - NASDAQ BASIC
CountryUnited States of America
Postal code02465
Phone16173444190
Websitehttps://acumenpharm.com/
Ticker SymbolABOS
IPO dateJul 01, 2021
CEOO'Connell (Daniel J)

Company Executives of Acumen Pharmaceuticals Inc

Name
Name/Position
Position
Shareholding
Change
Mr. Sean Stalfort
Mr. Sean Stalfort
Independent Chairman of the Board
Independent Chairman of the Board
316.72K
+4.21%
Mr. Russell Barton
Mr. Russell Barton
Chief Operating Officer
Chief Operating Officer
136.12K
+40.52%
Dr. Nathan B. Fountain, M.D.
Dr. Nathan B. Fountain, M.D.
Independent Director
Independent Director
19.05K
+204.80%
Dr. Laura Stoppel, Ph.D.
Dr. Laura Stoppel, Ph.D.
Independent Director
Independent Director
12.80K
--
Dr. George S. Golumbeski, Ph.D.
Dr. George S. Golumbeski, Ph.D.
Independent Director
Independent Director
--
--
Mr. Daniel J. (Dan) O'Connell
Mr. Daniel J. (Dan) O'Connell
Chief Executive Officer, Director
Chief Executive Officer, Director
--
--
Dr. James (Jim) Doherty, Ph.D.
Dr. James (Jim) Doherty, Ph.D.
President, Chief Development Officer
President, Chief Development Officer
--
--
Dr. Amy Schacterle, Ph.D.
Dr. Amy Schacterle, Ph.D.
Chief Regulatory Officer, Head of Quality
Chief Regulatory Officer, Head of Quality
--
--
Dr. Jeffrey L. (Jeff) Ives, Ph.D.
Dr. Jeffrey L. (Jeff) Ives, Ph.D.
Independent Director
Independent Director
--
--
Ms. Kimberlee Cobleigh (Kim) Drapkin, CPA
Ms. Kimberlee Cobleigh (Kim) Drapkin, CPA
Independent Director
Independent Director
--
--
View more
Name
Name/Position
Position
Shareholding
Change
Mr. Sean Stalfort
Mr. Sean Stalfort
Independent Chairman of the Board
Independent Chairman of the Board
316.72K
+4.21%
Mr. Russell Barton
Mr. Russell Barton
Chief Operating Officer
Chief Operating Officer
136.12K
+40.52%
Dr. Nathan B. Fountain, M.D.
Dr. Nathan B. Fountain, M.D.
Independent Director
Independent Director
19.05K
+204.80%
Dr. Laura Stoppel, Ph.D.
Dr. Laura Stoppel, Ph.D.
Independent Director
Independent Director
12.80K
--
Dr. George S. Golumbeski, Ph.D.
Dr. George S. Golumbeski, Ph.D.
Independent Director
Independent Director
--
--
Mr. Daniel J. (Dan) O'Connell
Mr. Daniel J. (Dan) O'Connell
Chief Executive Officer, Director
Chief Executive Officer, Director
--
--

Revenue Breakdown

Relevant data have not been disclosed by the company yet.
Relevant data have not been disclosed by the company yet.
By Business
By Region
Relevant data have not been disclosed by the company yet.

Shareholding Stats

Updated: Sun, Nov 16
Updated: Sun, Nov 16
Shareholders
Shareholder Types
Shareholders
Shareholders
Proportion
RA Capital Management, LP
24.65%
Hardie Robert D
5.70%
Sands Capital Ventures LLC
5.64%
PBM Capital Group, LLC
5.29%
Franklin Advisers, Inc.
3.81%
Other
54.91%
Shareholders
Shareholders
Proportion
RA Capital Management, LP
24.65%
Hardie Robert D
5.70%
Sands Capital Ventures LLC
5.64%
PBM Capital Group, LLC
5.29%
Franklin Advisers, Inc.
3.81%
Other
54.91%
Shareholder Types
Shareholders
Proportion
Venture Capital
29.94%
Hedge Fund
15.76%
Investment Advisor
10.88%
Individual Investor
7.31%
Investment Advisor/Hedge Fund
5.12%
Research Firm
1.62%
Family Office
1.42%
Other
27.96%

Institutional Shareholding

Updated: Mon, Dec 8
Updated: Mon, Dec 8
Reporting Period
No. of institutions
Shares Held
Proportion
Change
2025Q4
199
38.36M
75.57%
+1.31K
2025Q3
212
38.36M
86.56%
-1.67M
2025Q2
207
40.04M
89.95%
-2.61M
2025Q1
203
42.60M
94.64%
-14.73M
2024Q4
201
45.35M
96.41%
-1.28M
2024Q3
199
46.63M
96.70%
+13.53K
2024Q2
193
46.57M
93.52%
+237.54K
2024Q1
196
46.31M
88.00%
-6.56M
2023Q4
185
41.32M
89.57%
-4.83M
2023Q3
171
46.07M
72.04%
+10.00M
View more

Shareholder Activity

Name
Shares Held
Proportion
Change
Chg %
Date
RA Capital Management, LP
14.93M
24.65%
--
--
Jun 30, 2025
Hardie Robert D
3.45M
5.7%
--
--
Apr 08, 2025
Sands Capital Ventures LLC
3.42M
5.64%
--
--
Jun 30, 2025
PBM Capital Group, LLC
3.21M
5.29%
--
--
Apr 08, 2025
Franklin Advisers, Inc.
3.05M
5.04%
-63.10K
-2.02%
Jun 30, 2025
Fidelity Management & Research Company LLC
2.03M
3.35%
+4.11K
+0.20%
Jun 30, 2025
The Vanguard Group, Inc.
1.69M
2.79%
-247.64K
-12.78%
Jun 30, 2025
Knollwood Investment Advisory, LLC
1.63M
2.69%
--
--
Jun 30, 2025
Alyeska Investment Group, L.P.
939.60K
1.55%
--
--
Jun 30, 2025
Adar1 Capital Management LLC
916.18K
1.51%
+770.00K
+526.74%
Jun 30, 2025
View more

Related ETFs

Updated: Sat, Dec 6
Updated: Sat, Dec 6
Name
Proportion
iShares Micro-Cap ETF
0.02%
ProShares Hedge Replication ETF
0%
Avantis US Small Cap Equity ETF
0%
Proshares Ultra Russell 2000
0%
iShares Russell 2000 ETF
0%
iShares Russell 2000 Value ETF
0%
ProShares UltraPro Russell2000
0%
Global X Russell 2000 ETF
0%
iShares Neuroscience and Healthcare ETF
0%
iShares Micro-Cap ETF
Proportion0.02%
ProShares Hedge Replication ETF
Proportion0%
Avantis US Small Cap Equity ETF
Proportion0%
Proshares Ultra Russell 2000
Proportion0%
iShares Russell 2000 ETF
Proportion0%
iShares Russell 2000 Value ETF
Proportion0%
ProShares UltraPro Russell2000
Proportion0%
Global X Russell 2000 ETF
Proportion0%
iShares Neuroscience and Healthcare ETF
Proportion0%

Dividend

A total of 0.00 USD has been distributed in dividends over the past 5 years.
Date
Dividend
Record Date
Payment Date
Ex-dividend Date
No Data

Stock Split

Date
Type
Ratio
No Data
Date
Type
Ratio
No Data

FAQs

Who are the top five shareholders of Acumen Pharmaceuticals Inc?

The top five shareholders of Acumen Pharmaceuticals Inc are:
RA Capital Management, LP holds 14.93M shares, accounting for 24.65% of the total shares.
Hardie Robert D holds 3.45M shares, accounting for 5.70% of the total shares.
Sands Capital Ventures LLC holds 3.42M shares, accounting for 5.64% of the total shares.
PBM Capital Group, LLC holds 3.21M shares, accounting for 5.29% of the total shares.
Franklin Advisers, Inc. holds 3.05M shares, accounting for 5.04% of the total shares.

What are the top three shareholder types of Acumen Pharmaceuticals Inc?

The top three shareholder types of Acumen Pharmaceuticals Inc are:
RA Capital Management, LP
Hardie Robert D
Sands Capital Ventures LLC

How many institutions hold shares of Acumen Pharmaceuticals Inc (ABOS)?

As of 2025Q4, 199 institutions hold shares of Acumen Pharmaceuticals Inc, with a combined market value of approximately 38.36M, accounting for 75.57% of the total shares. Compared to 2025Q3, institutional shareholding has increased by -10.98%.

What is the biggest source of revenue for Acumen Pharmaceuticals Inc?

In --, the -- business generated the highest revenue for Acumen Pharmaceuticals Inc, amounting to -- and accounting for --% of total revenue.
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