John T. Dahldorf serves as Executive at Volcano CORP, where they oversee executive responsibilities. Since joining the company, John T. Dahldorf has executed 153 insider transactions totaling $11.9M, demonstrating a bearish approach to their equity position. Their most recent transaction on Apr 1, 2011 involved selling 49,797 shares valued at $1.3M.
John T. Dahldorf currently holds 19,586 shares of Volcano CORP (VOLC), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, John T. Dahldorf has been a net seller of VOLC stock. They have purchased $0 and sold $11.9M worth of shares.
John T. Dahldorf's most recent insider trade was on Apr 1, 2011, when they sold 49,797 shares at $25.80 per share.
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| $0.33 |
| Discretionary |
| Apr 1, 2011 | VOLC | $295.0K | Option Exercise | 45,454 | $6.49 | Discretionary |
| Mar 1, 2011 | VOLC | $44.9K | Sale | 1,724 | $26.06 | Discretionary |
| Feb 27, 2011 | VOLC | $0 | Option Exercise | 4,687 | $N/A | Discretionary |
| Feb 8, 2011 | VOLC | $34.7K | Sale | 1,311 | $26.44 | Discretionary |
| Feb 5, 2011 | VOLC | $0 | Option Exercise | 3,585 | $N/A | Discretionary |
| Feb 4, 2011 | VOLC | $63.9K | Sale | 2,420 | $26.39 | Discretionary |
| Feb 3, 2011 | VOLC | $0 | Option Exercise | 6,125 | $N/A | Discretionary |
| Dec 8, 2010 | VOLC | $64.6K | Sale | 2,283 | $28.30 | Discretionary |
| Dec 8, 2010 | VOLC | $1.6M | Sale | 57,717 | $27.69 | Discretionary |
| Dec 8, 2010 | VOLC | $19.8K | Option Exercise | 60,000 | $0.33 | Discretionary |
| Dec 8, 2010 | VOLC | $64.6K | Sale | 2,283 | $28.30 | Discretionary |
| Dec 8, 2010 | VOLC | $1.6M | Sale | 57,717 | $27.69 | Discretionary |
| Dec 8, 2010 | VOLC | $19.8K | Option Exercise | 60,000 | $0.33 | Discretionary |
| Mar 2, 2010 | VOLC | $37.0K | Sale | 1,703 | $21.73 | Discretionary |
| Feb 27, 2010 | VOLC | $0 | Option Exercise | 4,688 | $N/A | Discretionary |
| Feb 5, 2010 | VOLC | $49.5K | Sale | 2,591 | $19.12 | Discretionary |
| Feb 3, 2010 | VOLC | $0 | Option Exercise | 6,125 | $N/A | Discretionary |
| Feb 27, 2009 | VOLC | $0 | Option Exercise | 4,688 | $N/A | Discretionary |
| Feb 27, 2009 | VOLC | $32.1K | Payment | 2,145 | $14.96 | Discretionary |
| Nov 14, 2008 | VOLC | $72.3K | Sale | 4,015 | $18.00 | Discretionary |
| Nov 14, 2008 | VOLC | $1.3K | Option Exercise | 4,015 | $0.33 | Discretionary |
| Nov 11, 2008 | VOLC | $361.8K | Sale | 21,600 | $16.75 | Discretionary |
| Nov 11, 2008 | VOLC | $7.1K | Option Exercise | 21,600 | $0.33 | Discretionary |
| Nov 10, 2008 | VOLC | $40.3K | Sale | 2,350 | $17.15 | Discretionary |
| Nov 10, 2008 | VOLC | $63.0K | Sale | 3,662 | $17.20 | Discretionary |
| Nov 10, 2008 | VOLC | $93.0K | Sale | 5,400 | $17.22 | Discretionary |
| Nov 10, 2008 | VOLC | $9.8K | Sale | 568 | $17.30 | Discretionary |
| Nov 10, 2008 | VOLC | $5.3K | Sale | 308 | $17.32 | Discretionary |