Rubicon Technology, Inc. — SC 13D/A Filings
7 SC 13D/A filings on record
This page lists all SC 13D/A filings submitted to the SEC by Rubicon Technology, Inc. (RBCN), sorted by most recent first. Each row links to the full filing on EdgarLookup. Rubicon Technology, Inc. has filed 7 SC 13D/A documents with the SEC since 2007. To view all SEC filings by Rubicon Technology, Inc., see the full filings list.
All
10-K
10-K/A
10-Q
10-Q/A
15-15D
25
3
3/A
4
4/A
424B2
424B4
424B5
8-A12B
8-A12B/A
8-K
8-K/A
ARS
AW
CERTNAS
CORRESP
CT ORDER
DEF 14A
DEFA14A
DEFC14A
DFAN14A
EFFECT
FWP
NT 10-K/A
POS AM
PRE 14A
PREC14A
PRER14A
PRRN14A
PX14A6G
RW
S-1
S-1/A
S-1MEF
S-3
S-3/A
S-3MEF
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC 14D9
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SC 13D/A | FORM 13-D AMENDMENT | 0001376474-22-000384 | Aug 24, 2022 | — |
| SC 13D/A | AMENDMENT NO. 3 TO THE SCHEDULE 13D | 0000921895-22-002518 | Aug 23, 2022 | — |
| SC 13D/A | AMENDMENT NO. 2 TO THE SCHEDULE 13D | 0000921895-22-002510 | Aug 22, 2022 | — |
| SC 13D/A | FORM 13-D AMENDMENT | 0001376474-22-000309 | Jul 12, 2022 | — |
| SC 13D/A | AMENDMENT NO. 2 TO SCHEDULE 13D | 0000921895-22-002197 | Jul 8, 2022 | — |
| SC 13D/A | AMENDMENT NO. 1 TO THE SCHEDULE 13D | 0000921895-20-002393 | Sep 14, 2020 | — |
| SC 13D/A | SCHEDULE 13-D AMENDMENT | 0001376474-17-000335 | Dec 5, 2017 | — |