Simplex Trading, LLC
- SEC CIK
- 0001488542
- Latest filing
- Aug 12, 2026
MASS holding history
908 Devices Inc. in every 13F filed by Simplex Trading, LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
MASS overviewAll 13F holders of MASSFull Q2 2026 holdings
- Shares (Q2 2025)
- 0
- Sold out in Q2 2025
- Value
- $0
- % of portfolio
- 0.0%
- Quarters held
- 7
- Since Q1 2022
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2025 | 0 | $0 | 0.0% | −3,516−100.0% | Sold out | Holders |
| Q1 2025 | 3,516 | $15.0K | <0.1% | −1,341−27.6% | Reduced | Holders |
| Q4 2024 | 4,857 | $10.0K | <0.1% | +4,488+1,216.3% | Added | Holders |
| Q3 2024 | 369 | $1.00K | <0.1% | +369 | New | Holders |
| Q3 2023 | 0 | $0 | 0.0% | −392−100.0% | Sold out | Holders |
| Q2 2023 | 392 | $2.00K | <0.1% | +392 | New | Holders |
| Q1 2023 | 0 | $0 | 0.0% | −2,771−100.0% | Sold out | Holders |
| Q4 2022 | 2,771 | $21.0K | <0.1% | +2,045+281.7% | Added | Holders |
| Q3 2022 | 726 | $11.0K | <0.1% | +726 | New | Holders |
| Q2 2022 | 0 | $0 | 0.0% | −880−100.0% | Sold out | Holders |
| Q1 2022 | 880 | $16.0K | <0.1% | +880 | New | Holders |