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 2022
Institutional positions in Rubicon Technology, Inc. as of Mar 31, 2022. 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
- 17
- −3 vs. Q4 2021
- Shares held
- 519.0K
- −13.4K (−2.5%) vs. Q4 2021
- Total value
- $4.81M
- +$33.0K (+0.7%) vs. Q4 2021
- New holders
- 0
- 0 more added
- Sold out
- 3
- 5 more reduced
Compare with Q4 2021: new holders, sold out and not filed yet
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 2022
Shares, value and share of portfolio for each institution holding Rubicon Technology, Inc.; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bandera Partners LLC | 258,256 | $2.40M | 0.71% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 96,779 | $898.0K | 0.00% | −2,700−2.7% | Reduced |
| Vanguard Group Inc | 74,300 | $690.0K | 0.00% | −6,537−8.1% | Reduced |
| BlackRock Inc. | 41,042 | $381.0K | 0.00% | 00.0% | Unchanged |
| Marquette Asset Management, LLC | 22,385 | $202.0K | 0.05% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 11,920 | $111.0K | 0.00% | −330−2.7% | Reduced |
| Geode Capital Management, LLC | 11,566 | $104.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,176 | $11.0K | 0.00% | −508−30.2% | Reduced |
| AlphaMark Advisors, LLC | 500 | $5.00K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 348 | $3.00K | 0.00% | −402−53.6% | Reduced |
| JPMorgan Chase & Co | 326 | $3.00K | 0.00% | 00.0% | Unchanged |
| Leonteq Securities AG | 147 | $1.36K | 0.00% | 00.0% | Unchanged |
| West Bancorporation Inc | 100 | $1.00K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 107 | $1.00K | 0.00% | 00.0% | Unchanged |
| Bedel Financial Consulting, Inc. | 81 | $1.00K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 14 | $0 | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 1 | $0 | 0.00% | 00.0% | Unchanged |
| JBF Capital, Inc. | 0 | $0 | 0.00% | −2,866−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| FourThought Financial, LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |