ARCA BIOPHARMA INC's ticker is and the CUSIP is 00211Y906. A total of 3 filers reported holding ARCA BIOPHARMA INC in Q3 2023. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $0 | -100.0% | 100 | -92.3% | 0.00% | – |
| Q2 2023 | $2 | -93.3% | 1,300 | -91.6% | 0.00% | – |
| Q1 2023 | $30 | – | 15,500 | +7650.0% | 0.00% | – |
| Q4 2022 | $0 | -100.0% | 200 | -92.9% | 0.00% | – |
| Q3 2022 | $5,000 | -80.8% | 2,800 | -74.1% | 0.00% | – |
| Q2 2022 | $26,000 | +2500.0% | 10,800 | +1442.9% | 0.00% | – |
| Q1 2022 | $1,000 | – | 700 | +133.3% | 0.00% | – |
| Q4 2021 | $0 | -100.0% | 300 | -87.5% | 0.00% | – |
| Q3 2021 | $8,000 | -38.5% | 2,400 | -40.0% | 0.00% | – |
| Q2 2021 | $13,000 | -23.5% | 4,000 | +8410.6% | 0.00% | – |
| Q1 2021 | $17,000 | -26.1% | 47 | -20.3% | 0.00% | – |
| Q4 2020 | $23,000 | – | 59 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| SIMPLEX TRADING, LLC | 10,800 | $26,000 | 0.00% |