John Rogers - Ariel Investments
Holding/activity history for Rubicon Technology Inc (RBCN)
← All RBCN superinvestors
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2021 Q3 | 0 | 0.00 | Sell 100.00% | <0.01 | $8.60–11.00 · VW $9.79i | SEC | |
| 2021 Q2 | 21,551 | <0.01 | Reduce 59.94% | <0.01 | $9.42–11.92 · VW $10.28i | $205,000 | SEC |
| 2021 Q1 | 53,798 | 0.01 | Reduce 7.06% | <0.01 | $9.18–11.84 · VW $10.30i | $555,000 | SEC |
| 2020 Q4 | 57,886 | 0.01 | Add 1.40% | <0.01 | $8.39–10.00 · VW $9.04i | $524,000 | SEC |
| 2020 Q3 | 57,087 | 0.01 | $8.50 | $485,000 | SEC | ||
| 2020 Q2 | 57,087 | 0.01 | Reduce 14.24% | <0.01 | $7.25–9.00 · VW $8.06i | $464,000 | SEC |
| 2020 Q1 | 66,568 | 0.01 | Reduce 14.74% | <0.01 | $7.15–9.16 · VW $8.15i | $514,000 | SEC |
| 2019 Q4 | 78,078 | 0.01 | Reduce 27.72% | <0.01 | $7.93–10.09 · VW $8.68i | $650,000 | SEC |
| 2019 Q3 | 108,015 | 0.01 | Reduce 25.67% | <0.01 | $8.16–9.87 · VW $9.10i | $1,034,000 | SEC |
| 2019 Q2 | 145,316 | 0.02 | $8.30 | $1,206,000 | SEC | ||
| 2019 Q1 | 145,316 | 0.01 | Add 0.47% | $7.62–8.48 · VW $8.08i | $1,173,000 | SEC | |
| 2018 Q4 | 144,635 | 0.02 | Reduce 35.65% | <0.01 | $7.24–9.12 · VW $8.11i | $1,143,000 | SEC |
| 2018 Q3 | 224,775 | 0.02 | Add 4.51% | <0.01 | $7.79–9.46 · VW $8.60i | $2,018,000 | SEC |
| 2018 Q2 | 215,083 | 0.02 | Add 37.74% | <0.01 | $6.76–8.06 · VW $7.44i | $1,697,000 | SEC |
| 2018 Q1 | 156,147 | 0.01 | Reduce 14.59% | <0.01 | $6.95–8.39 · VW $7.47i | $1,085,000 | SEC |
| 2017 Q4 | 182,827 | 0.02 | Add 2.72% | <0.01 | $7.51–9.05 · VW $8.17i | $1,459,000 | SEC |
| 2017 Q3 | 177,992 | 0.02 | Reduce 1.28% | <0.01 | $6.71–9.41 · VW $8.07i | $1,470,000 | SEC |
| 2017 Q2 | 180,297 | 0.02 | Buy | 0.02 | $6.40–10.45 · VW $8.85i | $1,670,000 | SEC |