Ariel Investments - RUBICON TECHNOLOGY INC ownership

RUBICON TECHNOLOGY INC's ticker is RBCN and the CUSIP is 78112T206. A total of 19 filers reported holding RUBICON TECHNOLOGY INC in Q4 2020. The put-call ratio across all filers is - and the average weighting 0.1%.

Quarter-by-quarter ownership
Ariel Investments ownership history of RUBICON TECHNOLOGY INC
ValueSharesWeighting
Q2 2021$205,000
-63.1%
21,551
-59.9%
0.00%
-60.0%
Q1 2021$555,000
+5.9%
53,798
-7.1%
0.01%
-16.7%
Q4 2020$524,000
+8.0%
57,886
+1.4%
0.01%
-14.3%
Q3 2020$485,000
+4.5%
57,0870.0%0.01%0.0%
Q2 2020$464,000
-9.7%
57,087
-14.2%
0.01%
-22.2%
Q1 2020$514,000
-20.9%
66,568
-14.7%
0.01%
+12.5%
Q4 2019$650,000
-37.1%
78,078
-27.7%
0.01%
-42.9%
Q3 2019$1,034,000
-14.3%
108,015
-25.7%
0.01%
-6.7%
Q2 2019$1,206,000
+2.8%
145,3160.0%0.02%0.0%
Q1 2019$1,173,000
+2.6%
145,316
+0.5%
0.02%
-6.2%
Q4 2018$1,143,000
-43.4%
144,635
-35.7%
0.02%
-27.3%
Q3 2018$2,018,000
+18.9%
224,775
+4.5%
0.02%
+15.8%
Q2 2018$1,697,000
+56.4%
215,083
+37.7%
0.02%
+58.3%
Q1 2018$1,085,000
-25.6%
156,147
-14.6%
0.01%
-25.0%
Q4 2017$1,459,000
-0.7%
182,827
+2.7%
0.02%
-5.9%
Q3 2017$1,470,000
-12.0%
177,992
-1.3%
0.02%
-15.0%
Q2 2017$1,670,000180,2970.02%
Other shareholders
RUBICON TECHNOLOGY INC shareholders Q4 2020
NameSharesValueWeighting ↓
Highlander Capital Management, LLC 150$00.00%
View complete list of RUBICON TECHNOLOGY INC shareholders