Security key
00509G209
Acumen Pharmaceuticals, Inc. - Common Stock, $0.0001 par value per share (ABOS)
CUSIP: 00509G209
Q2 2023 13F Holders as of 30 Jun 2023
- Security type / class
- Equity / Common Stock, $0.0001 par value per share
- Total 13F shares
- 26,328,948
- Total 13F value
- $126,640,120
- Share change
- -1,452,313
- Put/Call ratio
- 31%
- SEC-reported price per share
- $4.81
- Number of holders
- 52
- Value change
- -$5,262,013
- Number of buys
- 23
- Number of sells
- 36
- Shares outstanding
- 72,227,200
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2023
Institutions
52
Top holders
10
ABOS full security history
Ownership snapshot
Full 13F holder table
Acumen Pharmaceuticals, Inc. SEC filings
Acumen Pharmaceuticals, Inc. company facts
Broader feeds
Ownership snapshot
Top reported holders of ABOS - Acumen Pharmaceuticals, Inc. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Sands Capital Ventures Di...
Disclosed value leader
RA CAPITAL MANAGEMENT, L.P.
Comparable rows
0/15
Latest evidence
31 Mar 2023
3/4/5
13F
Highest disclosed value: $39,669,338
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
RA CAPITAL MANAGEMENT, L.P. has the largest disclosed position value at $39.67M.
0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens RA CAPITAL MANAGEMENT, L.P.'s linked filing trail.
Disclosed position value
Top 5
Sands Capital Ventures Discovery ...
$11.86M
Paul B. Manning
$2.28M
Robert D. Hardie
$2.28M
RA CAPITAL MANAGEMENT, L.P.
$39.67M
Deep Track Capital, LP
$16.05M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Sands Capital Ventures Discovery Fund III, L.P. |
3/4/5
10%+ Owner
|
—
denominator unverified
|
$11,859,300
3,417,075 shares
|
— | 06 Jul 2021 |
| Paul B. Manning |
3/4/5
10%+ Owner
|
—
denominator unverified
|
$2,283,603
657,985 shares
|
— | 06 Jul 2021 |
| Robert D. Hardie |
3/4/5
10%+ Owner
|
—
denominator unverified
|
$2,283,603
657,985 shares
|
— | 06 Jul 2021 |
| RA CAPITAL MANAGEMENT, L.P. |
13F
Company
|
—
denominator unverified
|
$39,669,338
9,770,773 shares
|
— | 31 Mar 2023 |
| Deep Track Capital, LP |
13F
Company
|
—
denominator unverified
|
$16,045,120
3,952,000 shares
|
— | 31 Mar 2023 |
| Sands Capital Alternatives, LLC |
13F
Company
|
—
denominator unverified
|
$13,873,325
3,417,075 shares
|
— | 31 Mar 2023 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
52
Shares
26,328,948
Rows available
52
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2023 vs Q1 2023 Across Filers
Q1 2023 holders
61
Q2 2023 holders
52
Holder diff
-9
| Investor | Q1 2023 Shares | Q2 2023 Shares | Share Diff | Share Chg % | Q1 2023 value | Q2 2023 value | Value change | Value Chg % |
|---|