Donald R. Caldwell, Director, 10% Owner at Rubicon Technology, Inc. (RBCN), sold 2,500,000 shares at $12.42 ($31.1M) on 2014-03-24, disclosed to the SEC on 2014-03-25.
Open-market sale of $31.1M RBCN by Director, 10% Owner. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| Filing → |
| KWR | SELL | 2018-08-10 | $102K | — | Filing → |
| KWR | SELL | 2018-05-18 | $383K | — | Filing → |
| KWR | SELL | 2017-11-28 | $48K | — | Filing → |