Sigma Planning Corp
- SEC CIK
- 0001449126
- Latest filing
- Aug 7, 2026
APTO holding history
Aptose Biosciences Inc. in every 13F filed by Sigma Planning Corp, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
APTO overviewAll 13F holders of APTOFull Q2 2026 holdings
- Shares (Q2 2025)
- 0
- Sold out in Q2 2025
- Value
- $0
- % of portfolio
- 0.0%
- Quarters held
- 16
- Since Q1 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2025 | 0 | $0 | 0.0% | −17,389−100.0% | Sold out | Holders |
| Q1 2025 | 17,389 | $54.8K | <0.1% | −685,995−97.5% | Reduced | Holders |
| Q4 2024 | 703,384 | $158.5K | <0.1% | +301,634+75.1% | Added | Holders |
| Q3 2024 | 401,750 | $165.1K | <0.1% | +167,282+71.3% | Added | Holders |
| Q2 2024 | 234,468 | $178.0K | <0.1% | +48,051+25.8% | Added | Holders |
| Q1 2024 | 186,417 | $309.5K | <0.1% | +110,940+147.0% | Added | Holders |
| Q4 2023 | 75,477 | $191.7K | <0.1% | −70,309−48.2% | Reduced | Holders |
| Q3 2023 | 145,786 | $408.2K | <0.1% | +145,786 | New | Holders |
| Q2 2023 | 0 | $0 | 0.0% | −96,303−100.0% | Sold outConverted for a 1-for-15 split | Holders |
| Q1 2023 | 1,444,550 | $924.5K | <0.1% | +374,046+34.9% | Added | Holders |
| Q4 2022 | 1,070,504 | $620.9K | <0.1% | +170,950+19.0% | Added | Holders |
| Q3 2022 | 899,554 | $535.0K | <0.1% | +57,380+6.8% | Added | Holders |
| Q2 2022 | 842,174 | $625.0K | <0.1% | +50,900+6.4% | Added | Holders |
| Q1 2022 | 791,274 | $1.08M | <0.1% | +223,960+39.5% | Added | Holders |
| Q4 2021 | 567,314 | $766.0K | <0.1% | +54,795+10.7% | Added | Holders |
| Q3 2021 | 512,519 | $1.12M | <0.1% | +132,475+34.9% | Added | Holders |
| Q2 2021 | 380,044 | $1.26M | <0.1% | +53,654+16.4% | Added | Holders |
| Q1 2021 | 326,390 | $1.95M | 0.1% | – | – | Holders |
Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.