Rubicon Technology, Inc.
RBCNDelisted Dec 23, 2022- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0001410172
Rubicon Technology, Inc. was delisted on Dec 23, 2022; its insiders filed their last Form 4 on Feb 24, 2023; 20 institutions reported holding it in 13F filings for Q3 2022, worth $867.3K in total; no superinvestor held it.
13F holders, Q1 2021
Institutional positions in Rubicon Technology, Inc. as of Mar 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 21
- No complete 13F data for Q4 2020
- Shares held
- 624.7K
- No complete 13F data for Q4 2020
- Total value
- $6.45M
- No complete 13F data for Q4 2020
Holders and value by quarter
Institutions reporting RBCN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 0 | $0 |
| Q1 2026 | 0 | $0 |
| Q4 2025 | 0 | $0 |
| Q3 2025 | 0 | $0 |
| Q2 2025 | 0 | $0 |
| Q1 2025 | 0 | $0 |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 1 | $126 |
| Q4 2023 | 1 | $117 |
| Q3 2023 | 1 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 4 | $256.5K |
| Q3 2022 | 20 | $867.3K |
| Q2 2022 | 18 | $4.62M |
| Q1 2022 | 17 | $4.81M |
| Q4 2021 | 20 | $4.78M |
| Q3 2021 | 18 | $5.58M |
| Q2 2021 | 20 | $5.52M |
| Q1 2021 | 21 | $6.45M |
Institutions, Q1 2021
Shares, value and share of portfolio for each institution holding Rubicon Technology, Inc..
Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wells Fargo & Company | 15 | $0 | 0.00% | – | – |
| Group One Trading, L.P. | 1 | $0 | 0.00% | – | – |
| Bank of America Corp | 71 | $1.00K | 0.00% | – | – |
| Bedel Financial Consulting, Inc. | 81 | $1.00K | 0.00% | – | – |
| JPMorgan Chase & Co | 326 | $3.00K | 0.00% | – | – |
| International Assets Investment Management, LLC | 320 | $3.00K | 0.00% | – | – |
| Northern Trust Corp | 864 | $9.00K | 0.00% | – | – |
| Tower Research Capital LLC (TRC) | 917 | $10.0K | 0.00% | – | – |
| Leonteq Securities AG | 1,147 | $11.8K | 0.00% | – | – |
| Morgan Stanley | 1,750 | $18.0K | 0.00% | – | – |
| UBS Group AG | 2,478 | $26.0K | 0.00% | – | – |
| JBF Capital, Inc. | 2,866 | $30.0K | 0.01% | – | – |
| Geode Capital Management, LLC | 11,566 | $119.0K | 0.00% | – | – |
| Advisor Group Holdings, Inc. | 13,000 | $134.0K | 0.00% | – | – |
| Marquette Asset Management, LLC | 22,385 | $231.0K | 0.06% | – | – |
| BlackRock Inc. | 49,603 | $512.0K | 0.00% | – | – |
| Ariel Investments, LLC | 53,798 | $555.0K | 0.01% | – | – |
| Vanguard Group Inc | 96,750 | $998.0K | 0.00% | – | – |
| Renaissance Technologies LLC | 108,512 | $1.12M | 0.00% | – | – |
| Bandera Partners LLC | 258,256 | $2.67M | 1.05% | – | – |
| FourThought Financial, LLC | 20 | – | – | – | – |