APTOSE BIOSCIENCES INC's ticker is and the CUSIP is 03835T900. A total of 3 filers reported holding APTOSE BIOSCIENCES INC in Q4 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2022 | $4 | -99.9% | 7,700 | 0.0% | 0.00% | – |
| Q3 2022 | $4,000 | -75.0% | 7,700 | -65.6% | 0.00% | – |
| Q2 2022 | $16,000 | -30.4% | 22,400 | +28.0% | 0.00% | – |
| Q1 2022 | $23,000 | +9.5% | 17,500 | +11.5% | 0.00% | – |
| Q4 2021 | $21,000 | -36.4% | 15,700 | +61.9% | 0.00% | – |
| Q3 2021 | $33,000 | +3.1% | 9,700 | -1.0% | 0.00% | – |
| Q2 2021 | $32,000 | -84.2% | 9,800 | +2782.4% | 0.00% | – |
| Q1 2021 | $203,000 | – | 340 | -33.5% | 0.00% | – |
| Q4 2020 | $0 | – | 511 | +173.3% | 0.00% | – |
| Q3 2020 | $0 | – | 187 | +48.4% | 0.00% | – |
| Q2 2020 | $0 | -100.0% | 126 | +50.0% | 0.00% | – |
| Q1 2020 | $49,000 | -62.3% | 84 | -63.6% | 0.00% | – |
| Q4 2019 | $130,000 | +6400.0% | 231 | +2210.0% | 0.00% | – |
| Q3 2019 | $2,000 | -60.0% | 10 | -52.4% | 0.00% | – |
| Q2 2019 | $5,000 | +25.0% | 21 | +5.0% | 0.00% | – |
| Q1 2019 | $4,000 | -81.8% | 20 | -82.9% | 0.00% | – |
| Q4 2018 | $22,000 | -29.0% | 117 | -3.3% | 0.00% | – |
| Q3 2018 | $31,000 | – | 121 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| GROUP ONE TRADING, L.P. | 9,500 | $13,000 | 0.00% |
| SIMPLEX TRADING, LLC | 15,700 | $21,000 | 0.00% |