David T. Riddiford serves as Executive at VICOR CORP, where they oversee executive responsibilities. Since joining the company, David T. Riddiford has executed 26 insider transactions totaling $396.7K, demonstrating a bearish approach to their equity position. Their most recent transaction on Nov 29, 2016 involved selling 2,055 shares valued at $30.8K.
David T. Riddiford currently holds 86,972 shares of VICOR CORP (VICR), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, David T. Riddiford has been a net seller of VICR stock. They have purchased $0 and sold $396.7K worth of shares.
David T. Riddiford's most recent insider trade was on Nov 29, 2016, when they sold 2,055 shares at $14.97 per share.
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| $14.79 |
| Discretionary |
| Mar 8, 2011 | VICR | $25.0K | Option Exercise | 3,624 | $6.90 | Discretionary |
| Mar 8, 2011 | VICR | $55.8K | Sale | 3,624 | $15.40 | Discretionary |
| Nov 2, 2010 | VICR | $50.0K | Option Exercise | 5,000 | $10.00 | Discretionary |
| Nov 2, 2010 | VICR | $88.0K | Sale | 5,000 | $17.60 | Discretionary |
| Apr 21, 2009 | VICR | $8.4K | Gift | 1,500 | $5.58 | Discretionary |
| Mar 20, 2009 | DWCH | $0 | Award | 2,500 | $N/A | Discretionary |
| Dec 11, 2008 | VICR | $17.8K | Gift | 4,000 | $4.45 | Discretionary |
| Jun 6, 2008 | VICR | $28.8K | Sale | 2,619 | $11.00 | Discretionary |
| Jun 6, 2008 | VICR | $18.7K | Option Exercise | 1,953 | $9.59 | Discretionary |
| Jun 6, 2008 | VICR | $21.5K | Sale | 1,953 | $11.00 | Discretionary |
| Jun 6, 2008 | VICR | $18.7K | Option Exercise | 2,619 | $7.15 | Discretionary |
| May 27, 2008 | VICR | $11.3K | Gift | 1,000 | $11.27 | Discretionary |
| Mar 14, 2008 | DWCH | $0 | Award | 2,500 | $N/A | Discretionary |
| Jan 27, 2008 | DWCH | $9.5K | Option Exercise | 1,778 | $5.34 | Discretionary |
| Jan 27, 2008 | DWCH | $29.3K | Option Exercise | 5,334 | $5.49 | Discretionary |
| May 31, 2007 | VICR | $23.2K | Sale | 1,953 | $11.89 | Discretionary |
| May 31, 2007 | VICR | $18.7K | Option Exercise | 2,619 | $7.15 | Discretionary |
| May 31, 2007 | VICR | $18.7K | Option Exercise | 1,953 | $9.59 | Discretionary |
| May 31, 2007 | VICR | $31.1K | Sale | 2,619 | $11.89 | Discretionary |
| Mar 9, 2007 | DWCH | $0 | Award | 2,500 | $N/A | Discretionary |
| May 4, 2006 | VICR | $37.5K | Option Exercise | 3,906 | $9.59 | Discretionary |
| May 4, 2006 | VICR | $36.0K | Option Exercise | 2,000 | $18.00 | Discretionary |
| May 4, 2006 | VICR | $20.0K | Option Exercise | 1,247 | $16.04 | Discretionary |
| May 4, 2006 | VICR | $18.7K | Option Exercise | 2,619 | $7.15 | Discretionary |