ARCA BIOPHARMA INC (ABIO)
Institutional ownership reported to the SEC as of Q2 2024, across 21 quarters.
31
Reporting holders
$49.6M
Reported value
0.4%
Held as options
+12
Holder change
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Cable Car Capital LLC | $15.3M | 4,000,452 | 16.14% | 3q | HELD |
| RTW INVESTMENTS, LP | $5.4M | 1,400,000 | 0.08% | new | NEW |
| JANUS HENDERSON GROUP PLC | $5.2M | 1,382,736 | 0.00% | new | NEW |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $4.6M | 1,200,000 | 0.01% | new | NEW |
| Avidity Partners Management LP | $3.8M | 1,000,000 | 0.16% | new | NEW |
| VR Adviser, LLC | $3.3M | 866,375 | 0.21% | new | NEW |
| COWEN AND COMPANY, LLC | $2.7M | 700,000 | 0.07% | new | NEW |
| MORGAN STANLEY | $2.5M | 650,000 | 0.00% | new | NEW |
| VANGUARD GROUP INC | $1.7M | 453,598 | 0.00% | 16q | HELD |
| COMMODORE CAPITAL LP | $1.6M | 414,325 | 0.11% | new | NEW |
| BlackRock Inc. | $949.5K | 247,909 | 0.00% | 16q | +7.2%+$63.8K |
| GEODE CAPITAL MANAGEMENT, LLC | $619.5K | 161,735 | 0.00% | 15q | +13.6%+$74.3K |
| ADAR1 Capital Management, LLC | $324.3K | 84,676 | 0.06% | new | NEW |
| RENAISSANCE TECHNOLOGIES LLC | $280.0K | 73,099 | 0.00% | 9q | +11.3%+$28.3K |
| Affinity Asset Advisors, LLC | $277.6K | 72,484 | 0.03% | new | NEW |
| STATE STREET CORP | $228.7K | 59,707 | 0.00% | 13q | HELD |
| DIMENSIONAL FUND ADVISORS LP | $162.8K | 42,502 | 0.00% | 11q | HELD |
| abrdn plc | $124.3K | 32,461 | 0.00% | 3q | HELD |
| CITADEL ADVISORS LLC | $121.4K | 3,985 | 0.00% | 14q | +225.6%+$84.1K |
| Cubist Systematic Strategies, LLC | $106.4K | 27,779 | 0.00% | new | NEW |
| NORTHERN TRUST CORP | $80.4K | 20,982 | 0.00% | 15q | HELD |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $74.7K | options only | 0.00% | new | OPTIONS |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $57.4K | 14,988 | 0.00% | 6q | HELD |
| GROUP ONE TRADING, L.P. | $51.8K | 7,131 | 0.00% | new | NEW |
| Activest Wealth Management | $7.7K | 2,000 | 0.00% | new | NEW |
| Tower Research Capital LLC (TRC) | $1.3K | 344 | 0.00% | 8q | -88.8%-$10.5K |
| Parallel Advisors, LLC | $935 | 244 | 0.00% | 12q | HELD |
| BANK OF AMERICA CORP /DE/ | $579 | 151 | 0.00% | 7q | -14.2% |
| Qube Research & Technologies Ltd | $192 | 50 | 0.00% | 4q | HELD |
| JPMORGAN CHASE & CO | $122 | 32 | 0.00% | 4q | -11.1% |
| WELLS FARGO & COMPANY/MN | $1 | 0 | 0.00% | 7q | -100.0% |
| SIMPLEX TRADING, LLC | $1 | 275 | 0.00% | new | NEW |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2024 | 31 | $49.6M | 12,919,745 | 16 | 4 | 4 | 0.4% |
| Q1 2024 | 19 | $12.6M | 7,120,436 | 1 | 4 | 2 | 0.8% |
| Q4 2023 | 23 | $12.7M | 7,419,881 | 2 | 6 | 2 | 0.3% |
| Q3 2023 | 22 | $6.5M | 3,206,895 | 4 | 2 | 7 | 1.2% |
| Q2 2023 | 24 | $5.8M | 2,786,116 | 3 | 1 | 6 | 1.9% |
| Q1 2023 | 25 | $5.2M | 2,465,981 | 6 | 6 | 3 | 6.1% |
| Q4 2022 | 20 | $5.9M | 2,379,362 | 4 | 1 | 3 | 4.9% |
| Q3 2022 | 22 | $8.2M | 2,260,845 | 5 | 5 | 3 | 43.1% |
| Q2 2022 | 22 | $8.5M | 1,675,731 | 6 | 4 | 3 | 50.7% |
| Q1 2022 | 21 | $3.0M | 1,133,069 | 6 | 4 | 5 | 12.3% |
| Q4 2021 | 17 | $3.0M | 1,152,745 | 3 | 4 | 3 | 17.3% |
| Q3 2021 | 16 | $5.0M | 1,528,270 | 7 | 5 | 2 | 8.8% |
| Q2 2021 | 14 | $4.5M | 1,193,080 | 4 | 4 | 2 | 7.9% |
| Q1 2021 | 14 | $3.6M | 876,401 | 6 | 6 | 1 | 11.4% |
| Q4 2020 | 15 | $3.5M | 853,236 | 11 | 3 | 0 | 3.5% |
| Q3 2020 | 9 | $1.8M | 411,828 | 7 | 0 | 1 | 0.0% |
| Q2 2020 | 3 | $898.0K | 135,652 | 0 | 0 | 3 | 0.0% |
| Q1 2020 | 5 | $562.0K | 201,095 | 1 | 2 | 1 | 0.0% |
| Q4 2019 | 7 | $1.2M | 211,047 | 3 | 1 | 0 | 0.0% |
| Q3 2019 | 7 | $910.0K | 170,259 | 2 | 1 | 1 | 0.0% |
| Q2 2019 | 8 | $2.0M | 272,542 | 8 | 0 | 0 | 0.0% |