55 filings
DEF 14A
RBCN
Rubicon Technology, Inc.
Definitive proxy
21 Nov 22
4:55pm
PX14A6G
RBCN
Rubicon Technology, Inc.
11 Jul 22
Letter to shareholders
8:21pm
DEFA14A
RBCN
Rubicon Technology, Inc.
5 Jul 22
Additional proxy soliciting materials
12:24pm
DFAN14A
RBCN
Rubicon Technology, Inc.
13 May 22
Additional proxy materials by non-management
11:29am
DFAN14A
RBCN
Rubicon Technology, Inc.
27 Apr 22
Additional proxy materials by non-management
2:58pm
DFAN14A
4hndiqtiuk
24 Feb 22
Additional proxy materials by non-management
4:36pm
DFAN14A
wivd5vr2bd4 xn9taaa
3 May 17
Additional proxy materials by non-management
12:00am
DEFA14A
ute8 mzdflz68mvihi
24 Apr 17
Additional proxy soliciting materials
12:00am
DEFC14A
md3jdhvo7n5k ouo
11 Apr 17
Proxy in contested solicitation
12:00am
PREC14A
bny3 5oj5v2haowqqk
30 Mar 17
Preliminary proxy with contested solicitation
12:00am
DEFA14A
vsa l2yk6
16 Mar 17
Additional proxy soliciting materials
12:00am
DFAN14A
3dhyiy1rshnz 8o9p
2 Mar 17
Additional proxy materials by non-management
12:00am