- Company Directors - R
- Riddiford David T
Insider Trading History of Riddiford David T
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) by Riddiford David T since 2006.
The trader's CIK number is 1111768.
At the time of the last reporting, Riddiford David T was the Director of Vicor Corp. (stock ticker symbol VICR).
Also see all insider trading activities at Vicor Corp.
Note that in the past
RIDDIFORD DAVID T also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at Datawatch Corp (DWCH) by Riddiford David T
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2008 | DWCH | 0 | $0 | 0 | $0 | 14,224 | $77,008 |
Yearly summary of insider trading at Vicor Corp (VICR) by Riddiford David T
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2016 | VICR | 0 | $0 | 10,000 | $148,289 | 0 | $0 |
| 2011 | VICR | 0 | $0 | 3,624 | $55,802 | 3,624 | $25,005 |
| 2010 | VICR | 0 | $0 | 5,000 | $88,000 | 5,000 | $50,000 |
| 2008 | VICR | 0 | $0 | 4,572 | $50,301 | 4,572 | $38,267 |
| 2007 | VICR | 0 | $0 | 4,572 | $54,361 | 4,572 | $38,267 |
| 2006 | VICR | 0 | $0 | 0 | $0 | 9,772 | $124,055 |
Insider trading activities at 2 companies by Riddiford David T:
1. Datawatch Corp (DWCH)
2. Vicor Corp (VICR)
Table 1. Insider trading of Datawatch Corp (DWCH) by Riddiford David T
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2008-01-27 | DWCH | Option Ex | 7,112 | 5.41 | 38,504 |
| 2008-01-27 | DWCH | Option Ex | 7,112 | 5.41 | 38,504 |
Table 2. Insider trading of Vicor Corp (VICR) by Riddiford David T
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2016-11-29 | VICR | Sale | 2,055 | 14.97 | 30,759 |
| 2016-11-23 | VICR | Sale | 7,945 | 14.79 | 117,530 |
| 2011-03-08 | VICR | Option Ex | 3,624 | 6.90 | 25,005 |
| 2011-03-08 | VICR | Sale | 3,624 | 15.40 | 55,802 |
| 2010-11-02 | VICR | Option Ex | 5,000 | 10.00 | 50,000 |
| 2010-11-02 | VICR | Sale | 5,000 | 17.60 | 88,000 |
| 2008-06-06 | VICR | Option Ex | 4,572 | 8.37 | 38,267 |
| 2008-06-06 | VICR | Sale | 4,572 | 11.00 | 50,301 |
| 2007-05-31 | VICR | Option Ex | 4,572 | 8.37 | 38,267 |
| 2007-05-31 | VICR | Sale | 4,572 | 11.89 | 54,361 |
| 2006-05-04 | VICR | Option Ex | 9,772 | 12.70 | 124,055 |
Insider trading activities including stock purchases, stock sales, and option exercises
listed in the above table cannot be completely guaranteed as to their accuracy.
For more information regarding the trades made by Riddiford David T
(Director of Vicor Corp at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.