ARCA BIOPHARMA INC's ticker is ABIO and the CUSIP is 00211Y506. A total of 21 filers reported holding ARCA BIOPHARMA INC in Q4 2020. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2023 | $597 | – | 300 | +29900.0% | 0.00% | – |
| Q4 2021 | $0 | – | 1 | -94.1% | 0.00% | – |
| Q3 2021 | $0 | -100.0% | 17 | -100.0% | 0.00% | – |
| Q1 2021 | $149,000 | +831.2% | 40,744 | +952.5% | 0.00% | – |
| Q4 2020 | $16,000 | – | 3,871 | – | 0.00% | – |
| Q1 2020 | $0 | -100.0% | 0 | -100.0% | 0.00% | – |
| Q4 2019 | $1,000 | 0.0% | 111 | 0.0% | 0.00% | – |
| Q3 2019 | $1,000 | 0.0% | 111 | 0.0% | 0.00% | – |
| Q2 2019 | $1,000 | – | 111 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Western Standard LLC | 1,174,270 | $2,360,283 | 2.13% |
| BML Capital Management, LLC | 706,930 | $1,420,929 | 1.30% |
| Newtyn Management, LLC | 300,000 | $603,000 | 0.15% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 46,948 | $94,365 | 0.00% |
| OSAIC HOLDINGS, INC. | 55 | $110 | 0.00% |
| DIMENSIONAL FUND ADVISORS LP | 42,514 | $85,453 | 0.00% |
| Parallel Advisors, LLC | 244 | $490 | 0.00% |
| BANK OF AMERICA CORP /DE/ | 31 | $62 | 0.00% |
| WELLS FARGO & COMPANY/MN | 75 | $151 | 0.00% |
| NORTHERN TRUST CORP | 20,982 | $42,174 | 0.00% |