Rubicon Technology, Inc. RBCN
We take great care to ensure that the data presented and summarized in this overview for Rubicon Technology, Inc. is accurate and up-to-date, based on a comprehensive analysis of 13F filing forms for institutional ownership and form 4 filings for insider transactions. Please note that this data may differ from other sources and should not be relied upon as the sole basis for investment decisions.
Top Institutions Holding RBCN
View allLatest Institutional Activity in RBCN
Top Purchases
Top Sells
About RBCN
Rubicon Technology, Inc. provides monocrystalline sapphire for applications in optical and industrial systems in North America and Asia. The company offers optical and industrial sapphire products in various shapes and sizes, including round and rectangular windows and wafers, domes, tubes, and rods for a range of end markets comprising defense and aerospace, specialty lighting, instrumentation, sensors and detectors, semiconductor process equipment, electronic substrates, medical, and laser applications. It serves defense subcontractors, industrial manufacturers, fabricators, and resellers. The company was incorporated in 2001 and is based in Bensenville, Illinois.
Insider Transactions at RBCN
Insider Transaction List
View all| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Feb 22
2023
|
Timothy Brog Director |
SELL
Open market or private sale
|
Direct |
52,624
-91.37%
|
$52,624
$1.51 P/Share
|
|
Aug 19
2022
|
Gramm Jefferson Director |
SELL
Open market or private sale
|
Indirect |
129,933
-50.31%
|
$2,598,660
$20.0 P/Share
|
|
Aug 19
2022
|
Gramm Jefferson Director |
SELL
Open market or private sale
|
Direct |
3,059
-50.31%
|
$61,180
$20.0 P/Share
|
|
Aug 19
2022
|
Susan Westphal Director |
SELL
Open market or private sale
|
Direct |
4,472
-50.32%
|
$89,440
$20.0 P/Share
|
|
Aug 19
2022
|
Michael E Mikolajczyk Director |
SELL
Open market or private sale
|
Direct |
31,851
-50.31%
|
$637,020
$20.0 P/Share
|
|
Aug 19
2022
|
Timothy Brog Director |
SELL
Open market or private sale
|
Direct |
58,315
-50.31%
|
$1,166,300
$20.0 P/Share
|
|
Jul 29
2022
|
Michael E Mikolajczyk Director |
BUY
Grant, award, or other acquisition
|
Direct |
1,010
+1.57%
|
-
|
|
Jul 29
2022
|
Gramm Jefferson Director |
BUY
Grant, award, or other acquisition
|
Direct |
1,010
+15.63%
|
-
|
|
Jul 29
2022
|
Susan Westphal Director |
BUY
Grant, award, or other acquisition
|
Direct |
1,010
+10.2%
|
-
|
|
Jul 18
2022
|
Timothy Brog Director |
SELL
Payment of exercise price or tax liability
|
Direct |
6,346
-5.19%
|
$101,536
$16.06 P/Share
|
|
Jul 18
2022
|
Timothy Brog Director |
BUY
Exercise of conversion of derivative security
|
Direct |
12,500
+9.28%
|
-
|
|
Jul 13
2022
|
Timothy Brog Director |
SELL
Payment of exercise price or tax liability
|
Direct |
6,346
-5.47%
|
$95,190
$15.84 P/Share
|
|
Jul 13
2022
|
Timothy Brog Director |
BUY
Exercise of conversion of derivative security
|
Direct |
12,500
+9.72%
|
-
|
|
Jun 23
2021
|
Gramm Jefferson Director |
BUY
Grant, award, or other acquisition
|
Direct |
1,250
+21.95%
|
-
|
|
Jun 23
2021
|
Susan Westphal Director |
BUY
Grant, award, or other acquisition
|
Direct |
1,250
+13.69%
|
-
|
|
Jun 23
2021
|
Michael E Mikolajczyk Director |
BUY
Grant, award, or other acquisition
|
Direct |
1,250
+1.97%
|
-
|
|
Apr 06
2021
|
Timothy Brog Director |
SELL
Payment of exercise price or tax liability
|
Direct |
14,950
-12.61%
|
$149,500
$10.81 P/Share
|
|
Apr 06
2021
|
Timothy Brog Director |
BUY
Grant, award, or other acquisition
|
Direct |
31,550
+21.02%
|
-
|
|
Oct 19
2020
|
Timothy Brog Director |
SELL
Payment of exercise price or tax liability
|
Direct |
5,280
-5.72%
|
$42,240
$8.5 P/Share
|
|
Oct 19
2020
|
Timothy Brog Director |
BUY
Exercise of conversion of derivative security
|
Direct |
17,280
+15.77%
|
-
|