Acumen Pharmaceuticals Ownership | Who Owns Acumen Pharmaceuticals?
Acumen Pharmaceuticals Ownership Summary
Acumen Pharmaceuticals is owned by 55.98% institutional investors, 7.03% insiders, and 36.99% retail investors. Ra capital management is the largest institutional shareholder, holding 24.65% of ABOS shares. Franklin Biotechnology Discv A(acc)USD is the top mutual fund, with 2.44% of its assets in Acumen Pharmaceuticals shares.
ABOS Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Acumen Pharmaceuticals | 55.98% | 7.03% | 36.99% |
| Sector | Healthcare Stocks | 42.53% | 10.81% | 46.67% |
| Industry | Biotech Stocks | 45.24% | 10.75% | 44.01% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Ra capital management | 14.93M | 24.65% | $25.53M |
| Sands capital ventures | 3.42M | 5.64% | $5.84M |
| Franklin resources | 2.31M | 3.81% | $3.94M |
| Blackrock | 2.16M | 3.61% | $5.22M |
| Fmr | 2.03M | 3.35% | $3.47M |
| Vanguard group | 1.65M | 2.73% | $2.82M |
| Knollwood investment advisory | 1.63M | 2.69% | $2.78M |
| Millennium management | 1.14M | 1.88% | $1.25M |
| Alyeska investment group | 939.60K | 1.55% | $1.61M |
| Adar1 capital management | 891.18K | 1.47% | $1.52M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Sands capital ventures | 3.42M | 1.28% | $5.84M |
| Ra capital management | 14.93M | 0.31% | $25.53M |
| Knollwood investment advisory | 1.63M | 0.25% | $2.78M |
| Adar1 capital management | 891.18K | 0.14% | $1.52M |
| Ikarian capital | 265.77K | 0.05% | $454.46K |
| Laurion capital management lp | 867.05K | 0.03% | $1.48M |
| Intrepid financial planning group | 30.15K | 0.02% | $51.56K |
| Catalyst financial partners | 89.70K | 0.02% | $153.38K |
| Catalyst funds management pty | 29.60K | 0.01% | $50.62K |
| Clune & associates | 16.50K | 0.01% | $28.21K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Blackrock | 2.16M | 0.00% | 1.97M |
| Sg americas securities | 403.88K | 0.00% | 403.88K |
| Renaissance | 584.29K | 0.00% | 337.70K |
| Acadian asset management | 77.92K | 0.00% | 77.92K |
| Bridgeway capital management | 190.17K | 0.01% | 75.00K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Rock springs capital management lp | - | - | -1.84M |
| Franklin resources | 2.31M | 0.00% | -771.94K |
| Parkman healthcare partners | - | - | -576.66K |
| Y-intercept (hong kong) | - | - | -250.85K |
| Tang capital management | - | - | -246.90K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Acadian asset management | 77.92K | 0.00% | 77.92K | $131.00K |
| Cubist systematic strategies | 23.90K | 0.00% | 23.90K | $40.88K |
| Pfg investments | 11.50K | 0.00% | 11.50K | $19.66K |
| Savant capital | 11.04K | 0.00% | 11.04K | $18.89K |
| Larson financial group | 4.00K | 0.00% | 4.00K | $6.84K |
Sold Out
| Holder | Change |
|---|---|
| True wealth design | -35.00 |
| Capital performance advisors llp | -52.00 |
| Clearstead advisors | -63.00 |
| Russell investments group | -278.00 |
| Coldstream capital management | -311.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 65 | -9.72% | 33,908,640 | -9.82% | 55 | 1.45% | 20 | -35.48% | 27 | 12.50% |
| Jun 30, 2025 | 72 | -13.25% | 37,610,957 | -6.52% | 62 | 1.41% | 31 | 19.23% | 24 | -29.41% |
| Mar 31, 2025 | 5 | -93.83% | 16,490,041 | -61.19% | 27 | 0.54% | 1 | -97.50% | 2 | -90.00% |
| Dec 31, 2024 | 81 | 5.19% | 42,494,401 | -2.55% | 70 | 1.34% | 40 | 17.65% | 20 | -4.76% |
| Sep 30, 2024 | 77 | -10.47% | 43,605,266 | 0.06% | 72 | 1.37% | 34 | -24.44% | 21 | 10.53% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Franklin Biotechnology Discv A(acc)USD | 1.48M | 2.44% | - |
| Fidelity Select Health Care | 1.14M | 1.88% | - |
| Vanguard Total Stock Mkt Idx Inv | 1.12M | 1.85% | -24.52K |
| iShares Russell 2000 ETF | 971.80K | 1.60% | - |
| Franklin Biotechnology Discovery A | 826.40K | 1.36% | - |
| Franklin US Small Cap Growth Equity | 771.94K | 1.27% | 3.97K |
| Franklin Small Cap Growth SMA | 771.94K | 1.27% | 771.94K |
| Franklin Small Cap Growth Adv | 708.38K | 1.17% | -59.59K |
| Fidelity Advisor Health Care I | 700.00K | 1.16% | - |
| Fidelity Small Cap Index | 408.40K | 0.67% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jan 21, 2025 | Zuga Matt | CFO & Chief Business Officer | Sell | $6.99K |
| Jan 23, 2025 | Zuga Matt | CFO & Chief Business Officer | Sell | $49.63K |
| Jan 21, 2025 | OConnell Daniel Joseph | Chief Executive Officer | Sell | $20.10K |
| Jan 21, 2025 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | $5.43K |
| Jan 21, 2025 | Barton Russell | Chief Operating Officer | Sell | $4.69K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q2 | - | - |
| 2025 Q1 | - | 11 |
| 2024 Q4 | - | - |
| 2024 Q2 | - | - |
| 2024 Q1 | - | 5 |
ABOS Ownership FAQ
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