ARCA BIOPHARMA INC's ticker is ABIO and the CUSIP is 00211Y506. A total of 24 filers reported holding ARCA BIOPHARMA INC in Q3 2023. The put-call ratio across all filers is 0.00 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $123,000 | -10.9% | 57,822 | +176.6% | 0.00% | -100.0% |
| Q2 2020 | $138,000 | +72.5% | 20,908 | -26.4% | 0.00% | – |
| Q1 2020 | $80,000 | -19.2% | 28,423 | +64.0% | 0.00% | – |
| Q4 2019 | $99,000 | +6.5% | 17,333 | 0.0% | 0.00% | – |
| Q3 2019 | $93,000 | -27.3% | 17,333 | 0.0% | 0.00% | -100.0% |
| Q2 2019 | $128,000 | – | 17,333 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| SG3 Management, LLC | 100,000 | $249,000 | 0.03% |
| Murchinson Ltd. | 50,593 | $126,000 | 0.02% |
| Marquette Asset Management, LLC | 17,318 | $43,000 | 0.01% |
| SG3 Management, LLC | 22,706 | $57,000 | 0.01% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 46,948 | $117,000 | 0.00% |
| Tekla Capital Management LLC | 32,461 | $81,000 | 0.00% |
| BAILARD, INC. | 35,000 | $87,000 | 0.00% |
| GROUP ONE TRADING, L.P. | 131,501 | $327,000 | 0.00% |
| TWO SIGMA SECURITIES, LLC | 10,238 | $25,000 | 0.00% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 882,900 | $2,198,000 | 0.00% |