BENSENVILLE, IL
RUBICON TECHNOLOGY, INC.RBCN— Latest position per institution from SEC 13F filings
15
Institutional holders
422.26K
Total shares held
247.59K
Estimated value
21.11K
Avg. position size
BANDERA PARTNERS LLC
CIK 1399386
Shares
128.32K
Value
223.28K
Filed
Dec 31, 2022
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
90.67K
Value
194.00
Filed
Sep 30, 2022
CSS LLC/IL
CIK 1103646
Shares
46.65K
Value
100.00
Filed
Sep 30, 2022
AMERIPRISE FINANCIAL INC
CIK 820027
Shares
35.34K
Value
76.00
Filed
Sep 30, 2022
ELLSWORTH ADVISORS, LLC
CIK 1843553
Shares
25.13K
Value
54.00
Filed
Sep 30, 2022
CITADEL ADVISORS LLC
CIK 1423053
Shares
21.41K
Value
46.00
Filed
Sep 30, 2022
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
20.14K
Value
43.00
Filed
Sep 30, 2022
JBF CAPITAL, INC.
CIK 1483864
Shares
16.48K
Value
23.23K
Filed
Dec 31, 2022
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
10.53K
Value
23.00
Filed
Sep 30, 2022
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
10.42K
Value
22.00
Filed
Sep 30, 2022
OSAIC HOLDINGS, INC.
CIK 1677044
Shares
6.98K
Value
15.00
Filed
Sep 30, 2022
TOWER RESEARCH CAPITAL LLC (TRC)
CIK 1533421
Shares
5.86K
Value
10.00
Filed
Dec 31, 2022
MORGAN STANLEY
CIK 895421
Shares
3.15K
Value
7.00
Filed
Sep 30, 2022
ALPHAMARK ADVISORS, LLC
CIK 1348183
Shares
500.00
Value
1.00
Filed
Sep 30, 2022
ROCKEFELLER CAPITAL MANAGEMENT L.P.
CIK 1739439
Shares
220.00
Value
0.00
Filed
Dec 31, 2022
HIGHLANDER CAPITAL MANAGEMENT, LLC
CIK 1519113
Shares
150.00
Value
126.00
Filed
Mar 31, 2024
LEONTEQ SECURITIES AG
CIK 1535950
Shares
147.00
Value
315.00
Filed
Sep 30, 2022
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO
CIK 1141802
Shares
82.00
Value
0.00
Filed
Sep 30, 2022
UBS GROUP AG
CIK 1610520
Shares
57.00
Value
0.00
Filed
Sep 30, 2022
CREDIT SUISSE AG/
CIK 824468
Shares
26.00
Value
45.00
Filed
Dec 31, 2022
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BANDERA PARTNERS LLC | 1399386 | 128.32K | 223.28K | Dec 31, 2022 |
| 2 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 90.67K | 194.00 | Sep 30, 2022 |
| 3 | CSS LLC/IL | 1103646 | 46.65K | 100.00 | Sep 30, 2022 |
| 4 | AMERIPRISE FINANCIAL INC | 820027 | 35.34K | 76.00 | Sep 30, 2022 |
| 5 | ELLSWORTH ADVISORS, LLC | 1843553 | 25.13K | 54.00 | Sep 30, 2022 |
| 6 | CITADEL ADVISORS LLC | 1423053 | 21.41K | 46.00 | Sep 30, 2022 |
| 7 | BLACKROCK FINANCE, INC. | 1364742 | 20.14K | 43.00 | Sep 30, 2022 |
| 8 | JBF CAPITAL, INC. | 1483864 | 16.48K | 23.23K | Dec 31, 2022 |
| 9 | MILLENNIUM MANAGEMENT LLC | 1273087 | 10.53K | 23.00 | Sep 30, 2022 |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 10.42K | 22.00 | Sep 30, 2022 |
| 11 | OSAIC HOLDINGS, INC. | 1677044 | 6.98K | 15.00 | Sep 30, 2022 |
| 12 | TOWER RESEARCH CAPITAL LLC (TRC) | 1533421 | 5.86K | 10.00 | Dec 31, 2022 |
| 13 | MORGAN STANLEY | 895421 | 3.15K | 7.00 | Sep 30, 2022 |
| 14 | ALPHAMARK ADVISORS, LLC | 1348183 | 500.00 | 1.00 | Sep 30, 2022 |
| 15 | ROCKEFELLER CAPITAL MANAGEMENT L.P. | 1739439 | 220.00 | 0.00 | Dec 31, 2022 |
| 16 | HIGHLANDER CAPITAL MANAGEMENT, LLC | 1519113 | 150.00 | 126.00 | Mar 31, 2024 |
| 17 | LEONTEQ SECURITIES AG | 1535950 | 147.00 | 315.00 | Sep 30, 2022 |
| 18 | NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 1141802 | 82.00 | 0.00 | Sep 30, 2022 |
| 19 | UBS GROUP AG | 1610520 | 57.00 | 0.00 | Sep 30, 2022 |
| 20 | CREDIT SUISSE AG/ | 824468 | 26.00 | 45.00 | Dec 31, 2022 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.