Form4insider filings, from the source

SEC Form 4 · accession 0001213900-18-000124

Rubicon Technology, Inc. · RBCN

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner
Mardel A Graffy
Officer — Chief Financial Officer
Period of report
Jan 3, 2018
Accepted (ET)
Jan 4, 2018 · 4:08 pm EST
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001410172

Table I — non-derivative securities

No Table I lines on this filing.

Table II — derivative securities

SecurityConv. / exercise priceDateCodeSharesA/DExercisableExpiresUnderlyingUnderlying sharesOwned afterD/I
Restricted Stock UnitsF2,F1—Jan 3, 2018A444A—Apr 1, 2018Common Stock444444D
Restricted Stock UnitsF3,F1—Jan 3, 2018A444A—Jul 1, 2018Common Stock444444D

Explanation of responses