ARCA BIOPHARMA INC's ticker is ABIO and the CUSIP is 00211Y506. A total of 27 filers reported holding ARCA BIOPHARMA INC in Q4 2023. The put-call ratio across all filers is 0.00 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2024 | $279,969 | +241252.6% | 73,099 | +11.3% | 0.00% | – |
| Q1 2024 | $116 | +19.6% | 65,699 | +14.7% | 0.00% | – |
| Q4 2023 | $97 | -4.9% | 57,299 | +12.8% | 0.00% | – |
| Q3 2023 | $102 | +13.3% | 50,800 | +14.2% | 0.00% | – |
| Q2 2023 | $90 | +13.9% | 44,500 | +12.1% | 0.00% | – |
| Q1 2023 | $79 | -4.8% | 39,700 | +12.8% | 0.00% | – |
| Q4 2022 | $83 | -99.9% | 35,200 | +5.1% | 0.00% | – |
| Q3 2022 | $69,000 | -14.8% | 33,500 | +3.1% | 0.00% | – |
| Q2 2022 | $81,000 | -90.2% | 32,500 | -84.2% | 0.00% | -100.0% |
| Q4 2020 | $824,000 | +387.6% | 205,500 | +436.4% | 0.00% | – |
| Q3 2020 | $169,000 | -69.0% | 38,310 | -53.4% | 0.00% | – |
| Q2 2020 | $545,000 | +46.5% | 82,283 | -38.3% | 0.00% | – |
| Q1 2020 | $372,000 | -54.3% | 133,294 | -6.5% | 0.00% | -100.0% |
| Q4 2019 | $814,000 | +52.1% | 142,572 | +42.4% | 0.00% | – |
| Q3 2019 | $535,000 | -9.2% | 100,088 | +24.4% | 0.00% | -100.0% |
| Q2 2019 | $589,000 | – | 80,485 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Newtyn Management, LLC | 500,000 | $1,030,000 | 0.23% |
| SG3 Management, LLC | 200,000 | $412,000 | 0.03% |
| Marquette Asset Management, LLC | 17,318 | $36,000 | 0.01% |
| SG3 Management, LLC | 75,412 | $155,674 | 0.01% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 46,948 | $97,000 | 0.00% |
| Tekla Capital Management LLC | 32,461 | $67,000 | 0.00% |
| Virtu Financial LLC | 14,221 | $29,000 | 0.00% |
| GROUP ONE TRADING, L.P. | 144,284 | $297,000 | 0.00% |
| WELLS FARGO & COMPANY/MN | 96 | $0 | 0.00% |
| NORTHERN TRUST CORP | 17,517 | $36,000 | 0.00% |