Company · CIK 0001410172 · SIC 3674 — Semiconductors & Related Devices · OTC
Rubicon Technology, Inc. · RBCN
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Dec 3, 2018 AForm 4 → | Dec 4, 5:34 pm EST | Michael E MikolajczykDirector | 20,215 | $8.71 | $176,027 | 71,275 | — | plan? |
| Nov 29, 2018 AForm 4 → | Nov 30, 5:01 pm EST | Michael E MikolajczykDirector | 9,687 | $8.68 | $84,037 | 51,060 | — | plan? |
| Nov 27, 2018 AForm 4 → | Nov 28, 5:17 pm EST | Michael E MikolajczykDirector | 5,098 | $8.31 | $42,352 | 41,373 | — | plan? |
| Jul 6, 2018 FMForm 4 → | Jul 9, 4:16 pm EDT | Inga A SlavutskyChief Financial Officer | 300 | $7.89 | $639 | 276 | — | plan? |
| Mar 16, 2018 AForm 4 → | Mar 19, 5:43 pm EDT | Susan WestphalDirector | 626 | — | — | 4,038 | — | plan? |
| Mar 16, 2018 AForm 4 → | Mar 19, 5:41 pm EDT | Michael E MikolajczykDirector | 626 | — | — | 36,275 | — | plan? |
| Mar 16, 2018 AForm 4 → | Mar 19, 5:40 pm EDT | Jefferson GrammDirector | 626 | — | — | 1,230 | — | plan? |
| Jan 2, 2018 AForm 4 → | Jan 4, 4:07 pm EST | Susan WestphalDirector | 1,175 | — | — | 3,412 | — | plan? |
| Jan 2, 2018 AForm 4 → | Jan 4, 4:06 pm EST | Michael E MikolajczykDirector | 1,269 | — | — | 35,649 | — | plan? |
| Jan 2, 2018 AForm 4 → | Jan 4, 4:05 pm EST | Jefferson GrammDirector | 604 | — | — | 604 | — | plan? |
| Nov 16, 2017 SForm 4 → | Nov 20, 12:58 pm EST | Donald R CaldwellDirector | 221,784 | $8.00 | $1,774,272 | 0 | −100% | plan? |
| Nov 1, 2017 FMForm 4 → | Nov 2, 4:02 pm EDT | Mardel A GraffyChief Financial Officer | 544 | $7.61 | $989 | 284 | — | plan? |
| Sep 30, 2017 AForm 4 → | Oct 3, 5:43 pm EDT | Susan WestphalDirector | 1,106 | — | — | 2,237 | — | plan? |
| Sep 30, 2017 AForm 4 → | Oct 3, 5:41 pm EDT | Michael E MikolajczykDirector | 1,247 | — | — | 34,380 | — | plan? |
| Sep 30, 2017 AForm 4 → | Oct 3, 5:40 pm EDT | Donald R CaldwellDirector | 1,228 | — | — | 13,900 | — | plan? |
| Sep 30, 2017 AForm 4 → | Oct 3, 5:39 pm EDT | Don N AquilanoDirector | 1,914 | — | — | 26,287 | — | plan? |
| Jun 30, 2017 AForm 4 → | Jul 5, 7:17 pm EDT | Susan WestphalDirector | 964 | — | — | 1,131 | — | plan? |
| Jun 30, 2017 AForm 4 → | Jul 5, 7:16 pm EDT | Michael E MikolajczykDirector | 1,101 | — | — | 33,133 | — | plan? |
| Jun 30, 2017 AForm 4 → | Jul 5, 7:14 pm EDT | Donald R CaldwellDirector | 1,084 | — | — | 12,672 | — | plan? |
| Jun 30, 2017 AForm 4 → | Jul 5, 7:12 pm EDT | Don N AquilanoDirector | 1,689 | — | — | 24,373 | — | plan? |
| Jun 9, 2017 FMForm 4 → | Jun 13, 12:55 pm EDT | Timothy BrogPresident and CEO, Director | 20,759 | $9.52 | $54,826 | 37,000 | — | plan? |
| Apr 6, 2017 FMForm 4 → | Apr 10, 4:14 pm EDT | Timothy BrogPresident and CEO, Director | 438,000 | $0.80 | $110,400 | 277,594 | — | plan? |
| Mar 31, 2017 AForm 4 → | Apr 4, 6:04 pm EDT | Raymond J SpencerDirector | 10,393 | — | — | 147,551 | — | plan? |
| Mar 31, 2017 AForm 4 → | Apr 4, 6:03 pm EDT | Susan WestphalDirector | 1,673 | — | — | 1,673 | — | plan? |
| Mar 31, 2017 AForm 4 → | Apr 4, 6:00 pm EDT | Michael E MikolajczykDirector | 11,720 | — | — | 320,327 | — | plan? |
| Mar 31, 2017 AForm 4 → | Apr 4, 5:59 pm EDT | Donald R CaldwellDirector | 10,831 | — | — | 115,881 | — | plan? |
| Mar 31, 2017 AForm 4 → | Apr 4, 5:57 pm EDT | Timothy BrogPresident and CEO, Director | 9,020 | — | — | 115,594 | — | plan? |
| Mar 31, 2017 AForm 4 → | Apr 4, 5:56 pm EDT | Don N AquilanoDirector | 17,991 | — | — | 226,845 | — | plan? |
| Dec 31, 2016 FMForm 4 → | Jan 4, 2017, 4:40 pm EST | Hany TamimChief Operating Officer | 42,666 | $0.60 | $5,600 | 36,333 | — | plan? |
| Nov 1, 2016 FMForm 4 → | Nov 3, 4:30 pm EDT | Hany TamimChief Operating Officer | 21,001 | $0.60 | $2,600 | 12,333 | — | plan? |
| Nov 1, 2016 FMForm 4 → | Nov 3, 4:30 pm EDT | Mardel A GraffyChief Financial Officer | 5,655 | $0.60 | $906 | 6,063 | — | plan? |
| Oct 1, 2016 DForm 4/A → | Mar 3, 2017, 4:46 pm EST | Don N AquilanoDirector | 46,634 | $21,093.23 | $706,116,967 | 208,854 | — | plan? |
| Oct 1, 2016 DForm 4/A → | Oct 13, 4:30 pm EDT | Don N AquilanoDirector | 46,634 | — | — | 208,854 | — | plan? amended |
| Oct 1, 2016 DForm 4 → | Oct 4, 4:32 pm EDT | Raymond J SpencerDirector | 8,772 | — | — | 139,570 | — | plan? |
| Oct 1, 2016 DForm 4 → | Oct 4, 4:30 pm EDT | Michael E MikolajczykDirector | 8,772 | — | — | 308,607 | — | plan? |
| Oct 1, 2016 DForm 4 → | Oct 4, 4:30 pm EDT | Don N AquilanoDirector | 42,248 | — | — | 213,240 | — | plan? amended |
| Jul 1, 2016 DForm 4 → | Jan 12, 2017, 4:15 pm EST | Raymond J SpencerDirector | 2,412 | — | — | 137,158 | — | plan? late |
| Jul 1, 2016 AForm 4 → | Jul 6, 4:31 pm EDT | Timothy BrogDirector | 2,022 | — | — | 106,574 | — | plan? |
| May 26, 2016 AForm 4 → | May 31, 7:19 pm EDT | Timothy BrogDirector | 104,552 | — | — | 104,552 | — | plan? |
| Jan 1, 2016 AForm 4 → | Jan 5, 5:44 pm EST | Don N AquilanoDirector | 200,657 | — | — | 255,488 | — | plan? |
| Jan 1, 2016 AForm 4 → | Jan 5, 5:39 pm EST | Michael E MikolajczykDirector | 109,210 | — | — | 317,379 | — | plan? |
| Jan 1, 2016 AForm 4 → | Jan 5, 5:38 pm EST | Raymond J SpencerDirector | 108,114 | — | — | 148,342 | — | plan? |
| Jan 1, 2016 AForm 4 → | Jan 5, 5:33 pm EST | Donald R CaldwellDirector | 69,517 | — | — | 105,050 | — | plan? |
| Dec 30, 2015 PForm 4 → | Jan 4, 2016, 4:09 pm EST | Michael E MikolajczykDirector | 80,000 | $1.20 | $95,613 | 208,169 | +62.4% | plan? |
| Nov 1, 2015 FMForm 4 → | Nov 3, 4:23 pm EST | Mardel A GraffyChief Financial Officer | 5,656 | $1.10 | $1,661 | 3,428 | — | plan? |
| Jan 1, 2015 AForm 4 → | Jan 5, 2:40 pm EST | Michael E MikolajczykDirector | 13,621 | — | — | 128,169 | — | plan? |
| Jan 1, 2015 AForm 4 → | Jan 5, 2:35 pm EST | Donald R CaldwellDirector | 8,670 | — | — | 35,533 | — | plan? |
| Jan 1, 2015 AForm 4 → | Jan 5, 2:35 pm EST | Raymond J SpencerDirector | 13,484 | — | — | 40,228 | — | plan? |
| Jan 1, 2015 AForm 4 → | Jan 5, 2:30 pm EST | Don N AquilanoDirector | 25,027 | — | — | 54,831 | — | plan? |
| Dec 31, 2014 FForm 4 → | Jan 5, 2015, 2:26 pm EST | William F WeissmanPresident and CEO, Director | 1,903 | $4.36 | $8,297 | 14,136 | — | plan? |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| May 10, 2018 AForm 4 → | May 14, 1:10 pm EDT | Susan WestphalDirector | 1,391 | $7.19 | $10,001 | 1,391 | — | |
| May 10, 2018 AForm 4 → | May 14, 1:09 pm EDT | Michael E MikolajczykDirector | 1,391 | $7.19 | $10,001 | 1,391 | — | |
| May 10, 2018 AForm 4 → | May 14, 1:08 pm EDT | Jefferson GrammDirector | 1,391 | $7.19 | $10,001 | 1,391 | — | |
| Jan 3, 2018 AForm 4 → | Jan 4, 4:08 pm EST | Mardel A GraffyChief Financial Officer | 888 | — | — | 444 | — | |
| Jan 1, 2018 AForm 4 → | Jan 2, 2:56 pm EST | Timothy BrogPresident and CEO, Director | 30,902 | — | — | 45,000 | — | |
| Nov 1, 2017 MForm 4 → | Nov 2, 4:02 pm EDT | Mardel A GraffyChief Financial Officer | 414 | — | — | 0 | — | |
| May 12, 2017 JForm 4 → | May 15, 4:12 pm EDT | Timothy BrogPresident and CEO, Director | 30,902 | — | — | 29,098 | — | |
| Mar 15, 2017 AForm 4 → | Mar 17, 7:20 pm EDT | Timothy BrogPresident and CEO, Director | 900,000 | — | — | 900,000 | — | |
| Dec 31, 2016 MForm 4 → | Jan 4, 2017, 4:40 pm EST | Hany TamimChief Operating Officer | 33,333 | — | — | 0 | — | |
| Nov 1, 2016 MForm 4 → | Nov 3, 4:30 pm EDT | Hany TamimChief Operating Officer | 16,667 | — | — | 33,333 | — | |
| Nov 1, 2016 MForm 4 → | Nov 3, 4:30 pm EDT | Mardel A GraffyChief Financial Officer | 4,145 | — | — | 1,155 | — | |
| Dec 1, 2015 AForm 4/A → | May 17, 2016, 6:30 pm EDT | Mardel A GraffyChief Financial Officer | 174,165 | — | — | 174,165 | — | |
| Dec 1, 2015 AForm 4 → | Dec 2, 4:58 pm EST | William F WeissmanPresident and CEO, Director | 277,778 | — | — | 277,778 | — | |
| Dec 1, 2015 AForm 4 → | Dec 2, 4:58 pm EST | Mardel A GraffyChief Financial Officer | 217,706 | — | — | 217,706 | — | amended |
| Nov 1, 2015 MForm 4 → | Nov 3, 4:23 pm EST | Mardel A GraffyChief Financial Officer | 4,146 | — | — | 2,310 | — | |
| Oct 31, 2015 AForm 4 → | Nov 3, 4:22 pm EST | Hany TamimChief Operating Officer | 80,000 | — | — | 50,000 | — |