Wendall Wierenga serves as Executive at XENOPORT INC, where they oversee executive responsibilities. Since joining the company, Wendall Wierenga has executed 127 insider transactions totaling $4.0M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jun 9, 2015 involved receiving (via award) 794 shares valued at $0.
Wendall Wierenga currently holds 32,345 shares of XENOPORT INC (XNPT), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Wendall Wierenga has been a net seller of XNPT stock. They have purchased $117.0K and sold $3.9M worth of shares.
Wendall Wierenga's most recent insider trade was on Jun 9, 2015, when they sold 794 shares at $0.00 per share.
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| $N/A |
| Discretionary |
| May 11, 2015 | XNPT | $28.1K | Purchase | 5,000 | $5.63 | Discretionary |
| Oct 22, 2014 | APRI | $30.4K | Purchase | 20,000 | $1.52 | Discretionary |
| May 27, 2014 | XNPT | $39.9K | Purchase | 10,000 | $3.99 | Discretionary |
| May 14, 2014 | XNPT | $0 | Option Exercise | 5,000 | $N/A | Discretionary |
| Jan 2, 2014 | SNTS | $10.0K | Disposition | 314 | $32.00 | Discretionary |
| Jan 2, 2014 | SNTS | $150.8K | Tender | 4,714 | $32.00 | Discretionary |
| Oct 1, 2013 | ONXX | $1.1M | Tender | 9,080 | $125.00 | Discretionary |
| Oct 1, 2013 | ONXX | $262.5K | Disposition | 2,100 | $125.00 | Discretionary |
| May 16, 2013 | XNPT | $0 | Option Exercise | 5,000 | $N/A | Discretionary |
| Mar 28, 2013 | ONXX | $0 | Award | 2,100 | $N/A | Discretionary |
| Feb 1, 2013 | ONXX | $19.4K | Sale | 250 | $77.71 | Discretionary |
| Nov 1, 2012 | ONXX | $19.3K | Sale | 250 | $77.21 | Discretionary |
| Aug 24, 2012 | ONXX | $135.7K | Option Exercise | 5,000 | $27.14 | Discretionary |
| Aug 24, 2012 | ONXX | $370.4K | Sale | 5,000 | $74.09 | Discretionary |
| Aug 1, 2012 | ONXX | $18.7K | Sale | 250 | $74.76 | Discretionary |
| Jul 25, 2012 | ONXX | $0 | Award | 1,500 | $N/A | Discretionary |
| May 1, 2012 | ONXX | $11.4K | Sale | 250 | $45.47 | Discretionary |
| Mar 30, 2012 | ONXX | $0 | Award | 3,000 | $N/A | Discretionary |
| Feb 1, 2012 | ONXX | $10.3K | Sale | 250 | $41.38 | Discretionary |
| Nov 1, 2011 | ONXX | $9.8K | Sale | 250 | $39.37 | Discretionary |
| Aug 1, 2011 | ONXX | $8.3K | Sale | 250 | $33.27 | Discretionary |
| May 2, 2011 | ONXX | $9.4K | Sale | 250 | $37.67 | Discretionary |
| Mar 31, 2011 | ONXX | $0 | Award | 3,000 | $N/A | Discretionary |
| May 26, 2010 | ONXX | $0 | Award | 1,000 | $N/A | Discretionary |
| Mar 31, 2010 | ONXX | $0 | Award | 2,000 | $N/A | Discretionary |
| Mar 31, 2009 | ONXX | $0 | Award | 580 | $N/A | Discretionary |
| Aug 27, 2008 | ONXX | $59.3K | Option Exercise | 5,000 | $11.86 | Discretionary |
| Aug 27, 2008 | ONXX | $61.6K | Sale | 1,500 | $41.04 | Discretionary |