Financial reports
10-K
2022 FY
Annual report
30 Mar 23
10-Q
2022 Q3
Quarterly report
10 Nov 22
10-Q
2022 Q2
Quarterly report
11 Aug 22
10-Q
2022 Q1
Quarterly report
12 May 22
10-K/A
2021 FY
Annual report (amended)
28 Apr 22
10-K
2021 FY
Annual report
25 Mar 22
10-Q
2021 Q3
Quarterly report
15 Nov 21
10-Q
2021 Q2
Quarterly report
13 Aug 21
10-Q
2021 Q1
Quarterly report
17 May 21
Current reports
8-K
Departure of Directors or Certain Officers
3 Mar 23
8-K
Departure of Directors or Certain Officers
24 Feb 23
8-K
Submission of Matters to a Vote of Security Holders
23 Dec 22
8-K
Rubicon Technology Announces Voluntary Delisting from Nasdaq
13 Dec 22
8-K
Departure of Directors or Certain Officers
13 Dec 22
8-K
Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard
20 Oct 22
8-K/A
Completion of Acquisition or Disposition of Assets
20 Sep 22
8-K
Completion of Acquisition or Disposition of Assets
19 Sep 22
8-K
Departure of Directors or Certain Officers
22 Aug 22
8-K
Entry into a Material Definitive Agreement
19 Aug 22
Registration and prospectus
15-15D
Suspension of duty to report
30 Mar 23
POS AM
Prospectus update (post-effective amendment)
20 Mar 23
POS AM
Prospectus update (post-effective amendment)
10 Mar 23
S-8 POS
Registration of securities for employees (post-effective amendment)
10 Mar 23
S-8 POS
Registration of securities for employees (post-effective amendment)
10 Mar 23
S-8 POS
Registration of securities for employees (post-effective amendment)
10 Mar 23
25
Voluntary exchange delisting
23 Dec 22
SC TO-T/A
Third party tender offer statement (amended)
18 Aug 22
SC TO-T/A
Third party tender offer statement (amended)
15 Aug 22
SC 14D9
Tender offer solicitation
25 Jul 22
Proxies
DEF 14A
Definitive proxy
21 Nov 22
PX14A6G
Letter to shareholders
11 Jul 22
DEFA14A
Additional proxy soliciting materials
5 Jul 22
DFAN14A
Additional proxy materials by non-management
13 May 22
DFAN14A
Additional proxy materials by non-management
27 Apr 22
DFAN14A
Additional proxy materials by non-management
24 Feb 22
DEF 14A
Definitive proxy
18 May 21
DEF 14A
Definitive proxy
15 Jun 20
PRE 14A
Preliminary proxy
2 Jun 20
DEF 14A
Definitive proxy
26 Apr 19
Other
EFFECT
Notice of effectiveness
23 Mar 23
EFFECT
Notice of effectiveness
15 Mar 23
UPLOAD
Letter from SEC
1 Mar 22
CORRESP
Correspondence with SEC
10 Apr 17
UPLOAD
Letter from SEC
7 Apr 17
UPLOAD
Letter from SEC
9 Jun 16
CORRESP
Correspondence with SEC
6 Jun 16
UPLOAD
Letter from SEC
3 Jun 16
UPLOAD
Letter from SEC
1 Jun 16
UPLOAD
Letter from SEC
17 May 16
Ownership
4
Timothy Brog
24 Feb 23
3
John Eidinger
29 Aug 22
3
Darren Clay Seirer
29 Aug 22
SC 13D/A
Aldebaran Capital, LLC
24 Aug 22
3
Dominique Schulte
24 Aug 22
SC 13D/A
JANEL CORP
24 Aug 22
4
Jefferson Gramm
23 Aug 22
SC 13D/A
Bandera Partners LLC
23 Aug 22
SC 13D/A
Sententia Capital Management, LLC
22 Aug 22
4
Timothy Brog
22 Aug 22